[PATCH v2 00/33] Refactor TI IPC DT configs into dtsi

[PATCH v2 00/33] Refactor TI IPC DT configs into dtsi

[Beleswar Padhi]

The TI K3 SoCs have multiple programmable remote processors like
R5F, M4F, C6x/C7x etc. The TI SDKs for these SoCs offer sample firmware
which could be run on these cores to demonstrate an "echo" IPC test.
Those firmware require certain memory carveouts to be reserved from
system memory, timers to be reserved, and certain mailbox
configurations for interrupt based messaging. These configurations
could be different for a different firmware.

Refactor these firmware dependent configurations from board level DTS
into a dtsi for now. This dtsi for TI IPC firmware is board-independent
and can be applied to all boards from the same SoC Family. This gets
rid of code duplication (>50%) and allows more freedom for users
developing custom firmware (or no firmware) to utilize system resources
better; easily by swapping out this dtsi. To maintain backward
compatibility, the dtsi is included in all existing boards.

DTSI vs Overlay:
1. I chose DTSI over overlay as both the ways required including the
refactored file in existing board-level files to maintain backward
compatibility, so didn't see the advantage of using overlays here.
2. If we do down the overlay path, existing board-level file names have
to be changed to indicate they are without the IPC support; so that
they can be combined with the overlay to generate the same-named DTBs.
For example:
k3-am69-sk.dtb := k3-am69-sk-sans-ipc.dtb k3-j784s4-ti-ipc-firmware.dtbo
			     ~~~~~~~~

I am not sure if this renaming of files is ideal?

v2: Changelog:
* Andrew:
1. Re-ordered patches in the following flow:
	Patches 01-11: Enables remoteprocs/mailboxes at board level.
	Patches 12-19: Adds missing configs for TI IPC firmware.
	Patches 20-22: Some fixes and cleanups before refactoring.
	Patches 23-33: Actual refactoring of FW nodes into dtsi.
2. Split out [PATCH 06/33] into [PATCH v2 13/33] and [PATCH v2 22/33].
3. Dropped "[PATCH 33/33] Switch MCU R5F cluster to Split-mode" in v2.

* Francesco Dolcini:
4. Added new-line before sub-nodes.

* General:
5. Carried T/B tags from Hiago De Franco.

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-1-b-padhi@ti.com/

Testing Done:
1. Tested Boot across all TI K3 EVM/SK boards.
2. Tested IPC on all TI K3 J7* EVM/SK boards (& AM62x SK).
3. Tested that each patch in the series generates no new warnings/errors.
4. HELP needed: Boot/IPC test on vendor boards utilizing TI K3 SoCs. 

Note for vendors:
1. This series streamlines all boards(external vendors included) to use the
TI IPC DTSI config. In the process, several new nodes related to remote
processors have been added/enabled in the final DTS. Need vendors help in
performing a sanity boot & IPC functionality test with the changes included
(More info in indivdual patch)
2. If you wish to not include all of the TI IPC DTSI configs and leave the
board files as it is currently, just let me know so and I will drop those
patches in the next revision.
Cc: Robert Nelson <robertcnelson@gmail.com>
Cc: Jo_o Paulo Gon_alves <joao.goncalves@toradex.com>
Cc: Parth Pancholi <parth.pancholi@toradex.com>
Cc: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Cc: Francesco Dolcini <francesco.dolcini@toradex.com>
Cc: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Cc: Logan Bristol <logan.bristol@utexas.edu>
Cc: Josua Mayer <josua@solid-run.com>
Cc: John Ma <jma@phytec.com>
Cc: Nathan Morrisson <nmorrisson@phytec.com>
Cc: Garrett Giordano <ggiordano@phytec.com>
Cc: Matt McKee <mmckee@phytec.com>
Cc: Wadim Egorov <w.egorov@phytec.de>
Cc: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
Cc: Max Krummenacher <max.krummenacher@toradex.com>
Cc: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Cc: Hiago De Franco <hiago.franco@toradex.com>

Thanks,
Beleswar

Beleswar Padhi (33):
  arm64: dts: ti: k3-j7200: Enable remote processors at board level
  arm64: dts: ti: k3-j721e: Enable remote processors at board level
  arm64: dts: ti: k3-j721s2: Enable remote processors at board level
  arm64: dts: ti: k3-j784s4-j742s2: Enable remote processors at board
    level
  arm64: dts: ti: k3-am62p-j722s: Enable remote processors at board
    level
  arm64: dts: ti: k3-am62: Enable remote processors at board level
  arm64: dts: ti: k3-am62a: Enable remote processors at board level
  arm64: dts: ti: k3-am64: Enable remote processors at board level
  arm64: dts: ti: k3-am65: Enable remote processors at board level
  arm64: dts: ti: k3-am62: Enable Mailbox nodes at the board level
  arm64: dts: ti: k3-am62a: Enable Mailbox nodes at the board level
  arm64: dts: ti: k3-am6*-boards: Add label to reserved-memory node
  arm64: dts: ti: k3-j721e-beagleboneai64: Add missing cfg for TI IPC FW
  arm64: dts: ti: k3-am62p-verdin: Add missing cfg for TI IPC Firmware
  arm64: dts: ti: k3-am62-verdin: Add missing cfg for TI IPC Firmware
  arm64: dts: ti: k3-am62-pocketbeagle2: Add missing cfg for TI IPC
    Firmware
  arm64: dts: ti: k3-am642-sr-som: Add missing cfg for TI IPC Firmware
  arm64: dts: ti: k3-am64-phycore-som: Add missing cfg for TI IPC
    Firmware
  arm64: dts: ti: k3-am642-tqma64xxl: Add missing cfg for TI IPC
    Firmware
  Revert "arm64: dts: ti: k3-j721e-sk: Fix reversed C6x carveout
    locations"
  Revert "arm64: dts: ti: k3-j721e-beagleboneai64: Fix reversed C6x
    carveout locations"
  arm64: dts: ti: k3-j721e-beagleboneai64: Switch MAIN R5F clusters to
    Split-mode
  arm64: dts: ti: k3-j7200-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-j721e-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-j721s2-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-j784s4-j742s2-ti-ipc-firmware-common: Refactor IPC
    cfg into new dtsi
  arm64: dts: ti: k3-j784s4-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-j722s-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-am62p-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-am62-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-am62a-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-am64-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi
  arm64: dts: ti: k3-am65-ti-ipc-firmware: Refactor IPC cfg into new
    dtsi

 arch/arm64/boot/dts/ti/k3-am62-main.dtsi      |   1 +
 .../boot/dts/ti/k3-am62-phycore-som.dtsi      |  43 +--
 .../boot/dts/ti/k3-am62-pocketbeagle2.dts     |  36 +-
 .../boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi  |  52 +++
 arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi    |  31 +-
 arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi    |   1 +
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi     |   4 +
 arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi      |   1 +
 .../boot/dts/ti/k3-am62a-phycore-som.dtsi     |  90 +----
 .../boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi |  98 +++++
 arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi   |   1 +
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts       |  92 +----
 arch/arm64/boot/dts/ti/k3-am62d2-evm.dts      |  77 +---
 .../dts/ti/k3-am62p-j722s-common-mcu.dtsi     |   1 +
 .../dts/ti/k3-am62p-j722s-common-wakeup.dtsi  |   1 +
 .../boot/dts/ti/k3-am62p-ti-ipc-firmware.dtsi |  60 +++
 arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi   |  42 ++-
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts       |  54 +--
 .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi |  47 +--
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi      |   6 +
 .../boot/dts/ti/k3-am64-phycore-som.dtsi      | 124 +------
 .../boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi  | 162 ++++++++
 arch/arm64/boot/dts/ti/k3-am642-evm.dts       | 146 +-------
 arch/arm64/boot/dts/ti/k3-am642-sk.dts        | 146 +-------
 arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi   |  92 +----
 .../arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi | 107 +-----
 .../boot/dts/ti/k3-am65-iot2050-common.dtsi   |  58 +--
 arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi       |   3 +
 .../boot/dts/ti/k3-am65-ti-ipc-firmware.dtsi  |  64 ++++
 .../arm64/boot/dts/ti/k3-am654-base-board.dts |  54 +--
 .../arm64/boot/dts/ti/k3-am67a-beagley-ai.dts | 152 +-------
 .../boot/dts/ti/k3-am68-phycore-som.dtsi      | 235 +-----------
 arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi    | 229 +-----------
 arch/arm64/boot/dts/ti/k3-am69-sk.dts         | 348 +----------------
 arch/arm64/boot/dts/ti/k3-j7200-main.dtsi     |   3 +
 .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi      |   3 +
 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi   | 115 +-----
 .../boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi | 130 +++++++
 .../boot/dts/ti/k3-j721e-beagleboneai64.dts   | 229 +-----------
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     |   6 +
 .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      |   3 +
 arch/arm64/boot/dts/ti/k3-j721e-sk.dts        | 266 +------------
 arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi   | 266 +------------
 .../boot/dts/ti/k3-j721e-ti-ipc-firmware.dtsi | 288 ++++++++++++++
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi    |   6 +
 .../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi     |   3 +
 arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi  | 231 +-----------
 .../dts/ti/k3-j721s2-ti-ipc-firmware.dtsi     | 253 +++++++++++++
 arch/arm64/boot/dts/ti/k3-j722s-evm.dts       | 154 +-------
 arch/arm64/boot/dts/ti/k3-j722s-main.dtsi     |   1 +
 .../boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi | 163 ++++++++
 arch/arm64/boot/dts/ti/k3-j784s4-evm.dts      |  26 +-
 .../dts/ti/k3-j784s4-j742s2-evm-common.dtsi   | 337 +----------------
 .../dts/ti/k3-j784s4-j742s2-main-common.dtsi  |   9 +
 .../k3-j784s4-j742s2-mcu-wakeup-common.dtsi   |   3 +
 ...-j784s4-j742s2-ti-ipc-firmware-common.dtsi | 350 ++++++++++++++++++
 .../dts/ti/k3-j784s4-ti-ipc-firmware.dtsi     |  35 ++
 57 files changed, 1821 insertions(+), 3717 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-am65-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-j721s2-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-j784s4-ti-ipc-firmware.dtsi

-- 
2.34.1

[PATCH v2 01/33] arm64: dts: ti: k3-j7200: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level J7200 SoC dtsi files are
incomplete without the memory carveouts and mailbox assignments which
are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. None

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-2-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-j7200-main.dtsi       | 3 +++
 arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 3 +++
 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi     | 9 +++++++++
 3 files changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
index 5ce5f0a3d6f5..628ff89dd72f 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
@@ -1516,6 +1516,7 @@ main_r5fss0: r5fss@5c00000 {
 		ranges = <0x5c00000 0x00 0x5c00000 0x20000>,
 			 <0x5d00000 0x00 0x5d00000 0x20000>;
 		power-domains = <&k3_pds 243 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss0_core0: r5f@5c00000 {
 			compatible = "ti,j7200-r5f";
@@ -1530,6 +1531,7 @@ main_r5fss0_core0: r5f@5c00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss0_core1: r5f@5d00000 {
@@ -1545,6 +1547,7 @@ main_r5fss0_core1: r5f@5d00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
index 56ab144fea07..692c4745040e 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
@@ -612,6 +612,7 @@ mcu_r5fss0: r5fss@41000000 {
 		ranges = <0x41000000 0x00 0x41000000 0x20000>,
 			 <0x41400000 0x00 0x41400000 0x20000>;
 		power-domains = <&k3_pds 249 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		mcu_r5fss0_core0: r5f@41000000 {
 			compatible = "ti,j7200-r5f";
@@ -626,6 +627,7 @@ mcu_r5fss0_core0: r5f@41000000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		mcu_r5fss0_core1: r5f@41400000 {
@@ -641,6 +643,7 @@ mcu_r5fss0_core1: r5f@41400000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
index 291ab9bb414d..90befcdc8d08 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
@@ -254,20 +254,27 @@ mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 /* Timers are used by Remoteproc firmware */
@@ -287,12 +294,14 @@ &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_i2c0 {
-- 
2.34.1

[PATCH v2 02/33] arm64: dts: ti: k3-j721e: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level J721E SoC dtsi files are
incomplete without the memory carveouts and mailbox assignments
which are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable
them at board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Reordered patch from [PATCH 05/33] to [PATCH v2 02/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-6-b-padhi@ti.com/

 .../boot/dts/ti/k3-j721e-beagleboneai64.dts    | 18 ++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi      |  6 ++++++
 .../arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi |  3 +++
 arch/arm64/boot/dts/ti/k3-j721e-sk.dts         | 12 ++++++++++++
 arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi    | 12 ++++++++++++
 5 files changed, 51 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
index fb899c99753e..0d1a313a7d10 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
@@ -935,37 +935,55 @@ mbox_c71_0: mbox-c71-0 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
 };
 
 &mcu_r5fss0_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&main_r5fss0 {
+	status = "okay";
+};
+
 &main_r5fss0_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
 };
 
 &main_r5fss0_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
 };
 
+&main_r5fss1 {
+	status = "okay";
+};
+
 &main_r5fss1_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
 };
 
 &main_r5fss1_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index ab3666ff4297..e748f704e3b6 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -2182,6 +2182,7 @@ main_r5fss0: r5fss@5c00000 {
 		ranges = <0x5c00000 0x00 0x5c00000 0x20000>,
 			 <0x5d00000 0x00 0x5d00000 0x20000>;
 		power-domains = <&k3_pds 243 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss0_core0: r5f@5c00000 {
 			compatible = "ti,j721e-r5f";
@@ -2196,6 +2197,7 @@ main_r5fss0_core0: r5f@5c00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss0_core1: r5f@5d00000 {
@@ -2211,6 +2213,7 @@ main_r5fss0_core1: r5f@5d00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
@@ -2222,6 +2225,7 @@ main_r5fss1: r5fss@5e00000 {
 		ranges = <0x5e00000 0x00 0x5e00000 0x20000>,
 			 <0x5f00000 0x00 0x5f00000 0x20000>;
 		power-domains = <&k3_pds 244 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss1_core0: r5f@5e00000 {
 			compatible = "ti,j721e-r5f";
@@ -2236,6 +2240,7 @@ main_r5fss1_core0: r5f@5e00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss1_core1: r5f@5f00000 {
@@ -2251,6 +2256,7 @@ main_r5fss1_core1: r5f@5f00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
index b02142b2b460..42a21398e389 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
@@ -594,6 +594,7 @@ mcu_r5fss0: r5fss@41000000 {
 		ranges = <0x41000000 0x00 0x41000000 0x20000>,
 			 <0x41400000 0x00 0x41400000 0x20000>;
 		power-domains = <&k3_pds 249 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		mcu_r5fss0_core0: r5f@41000000 {
 			compatible = "ti,j721e-r5f";
@@ -608,6 +609,7 @@ mcu_r5fss0_core0: r5f@41000000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		mcu_r5fss0_core1: r5f@41400000 {
@@ -623,6 +625,7 @@ mcu_r5fss0_core1: r5f@41400000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index ffef3d1cfd55..62b9c13a91e7 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -1349,13 +1349,19 @@ mbox_c71_0: mbox-c71-0 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
 };
 
 &mcu_r5fss0_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
@@ -1363,10 +1369,12 @@ &mcu_r5fss0_core1 {
 
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 &main_r5fss1 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 /* Timers are used by Remoteproc firmware */
@@ -1399,24 +1407,28 @@ &main_timer15 {
 };
 
 &main_r5fss0_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
 };
 
 &main_r5fss0_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
 };
 
 &main_r5fss1_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
 };
 
 &main_r5fss1_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
index 0722f6361cc8..795b041ee733 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
@@ -554,23 +554,31 @@ mbox_c71_0: mbox-c71-0 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
 };
 
 &mcu_r5fss0_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
 &main_r5fss0 {
+	status = "okay";
 	ti,cluster-mode = <0>;
 };
 
 &main_r5fss1 {
+	status = "okay";
 	ti,cluster-mode = <0>;
 };
 
@@ -604,24 +612,28 @@ &main_timer15 {
 };
 
 &main_r5fss0_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
 };
 
 &main_r5fss0_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
 };
 
 &main_r5fss1_core0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
 };
 
 &main_r5fss1_core1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
-- 
2.34.1

[PATCH v2 03/33] arm64: dts: ti: k3-j721s2: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level J721S2 SoC dtsi files are
incomplete without the memory carveouts and mailbox assignments which
are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 08/33] to [PATCH v2 03/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-9-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi  | 12 ++++++++++++
 arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi       | 12 ++++++++++++
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi       |  6 ++++++
 arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi |  3 +++
 arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi     | 12 ++++++++++++
 5 files changed, 45 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
index fd715fee8170..383594732e81 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
@@ -371,24 +371,28 @@ &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 /* eMMC */
@@ -407,10 +411,12 @@ &main_sdhci1 {
 
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 &main_r5fss1 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 /* Timers are used by Remoteproc firmware */
@@ -438,16 +444,22 @@ &main_timer5 {
 	status = "reserved";
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &ospi0 {
diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
index 4ca2d4e2fb9b..2d2edeeb7347 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
@@ -291,24 +291,32 @@ mbox_c71_1: mbox-c71-1 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 &main_r5fss1 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 /* Timers are used by Remoteproc firmware */
@@ -340,24 +348,28 @@ &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 &c71_0 {
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 726374dc8795..6aa4da5b7df4 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -1894,6 +1894,7 @@ main_r5fss0: r5fss@5c00000 {
 		ranges = <0x5c00000 0x00 0x5c00000 0x20000>,
 			 <0x5d00000 0x00 0x5d00000 0x20000>;
 		power-domains = <&k3_pds 277 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss0_core0: r5f@5c00000 {
 			compatible = "ti,j721s2-r5f";
@@ -1908,6 +1909,7 @@ main_r5fss0_core0: r5f@5c00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss0_core1: r5f@5d00000 {
@@ -1923,6 +1925,7 @@ main_r5fss0_core1: r5f@5d00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
@@ -1934,6 +1937,7 @@ main_r5fss1: r5fss@5e00000 {
 		ranges = <0x5e00000 0x00 0x5e00000 0x20000>,
 			 <0x5f00000 0x00 0x5f00000 0x20000>;
 		power-domains = <&k3_pds 278 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss1_core0: r5f@5e00000 {
 			compatible = "ti,j721s2-r5f";
@@ -1948,6 +1952,7 @@ main_r5fss1_core0: r5f@5e00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss1_core1: r5f@5f00000 {
@@ -1963,6 +1968,7 @@ main_r5fss1_core1: r5f@5f00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
index bc31266126d0..837097751c18 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -690,6 +690,7 @@ mcu_r5fss0: r5fss@41000000 {
 		ranges = <0x41000000 0x00 0x41000000 0x20000>,
 			 <0x41400000 0x00 0x41400000 0x20000>;
 		power-domains = <&k3_pds 283 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		mcu_r5fss0_core0: r5f@41000000 {
 			compatible = "ti,j721s2-r5f";
@@ -704,6 +705,7 @@ mcu_r5fss0_core0: r5f@41000000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		mcu_r5fss0_core1: r5f@41400000 {
@@ -719,6 +721,7 @@ mcu_r5fss0_core1: r5f@41400000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
index a9dbe14fb0c9..f252007262d3 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
@@ -572,24 +572,32 @@ mbox_c71_1: mbox-c71-1 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 &main_r5fss1 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 /* Timers are used by Remoteproc firmware */
@@ -621,24 +629,28 @@ &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 &c71_0 {
-- 
2.34.1

[PATCH v2 04/33] arm64: dts: ti: k3-j784s4-j742s2: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level J784S4-J742S2 common SoC dtsi
files are incomplete without the memory carveouts and mailbox
assignments which are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 10/33] to [PATCH v2 04/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-11-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am69-sk.dts             | 15 +++++++++++++++
 .../boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi  |  7 +++++++
 .../boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi |  9 +++++++++
 .../ti/k3-j784s4-j742s2-mcu-wakeup-common.dtsi    |  3 +++
 4 files changed, 34 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index 612ac27643d2..cea096733ba2 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -992,24 +992,32 @@ &mcu_cpsw_port1 {
 	bootph-all;
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 &main_r5fss1 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 /* Timers are used by Remoteproc firmware */
@@ -1055,42 +1063,49 @@ &main_timer9 {
 
 &main_r5fss2 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss2_core0 {
 	mboxes = <&mailbox0_cluster3 &mbox_main_r5fss2_core0>;
 	memory-region = <&main_r5fss2_core0_dma_memory_region>,
 			<&main_r5fss2_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss2_core1 {
 	mboxes = <&mailbox0_cluster3 &mbox_main_r5fss2_core1>;
 	memory-region = <&main_r5fss2_core1_dma_memory_region>,
 			<&main_r5fss2_core1_memory_region>;
+	status = "okay";
 };
 
 &c71_0 {
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
index 6afa802544e9..c269e5b29b96 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
@@ -1154,6 +1154,10 @@ mbox_c71_2: mbox-c71-2 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
 	status = "okay";
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
@@ -1170,14 +1174,17 @@ &mcu_r5fss0_core1 {
 
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 &main_r5fss1 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 &main_r5fss2 {
 	ti,cluster-mode = <0>;
+	status = "okay";
 };
 
 /* Timers are used by Remoteproc firmware */
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
index fbbe768e7a30..9cc0901d58fb 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi
@@ -2174,6 +2174,7 @@ main_r5fss0: r5fss@5c00000 {
 		ranges = <0x5c00000 0x00 0x5c00000 0x20000>,
 			 <0x5d00000 0x00 0x5d00000 0x20000>;
 		power-domains = <&k3_pds 336 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss0_core0: r5f@5c00000 {
 			compatible = "ti,j721s2-r5f";
@@ -2188,6 +2189,7 @@ main_r5fss0_core0: r5f@5c00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss0_core1: r5f@5d00000 {
@@ -2203,6 +2205,7 @@ main_r5fss0_core1: r5f@5d00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
@@ -2214,6 +2217,7 @@ main_r5fss1: r5fss@5e00000 {
 		ranges = <0x5e00000 0x00 0x5e00000 0x20000>,
 			 <0x5f00000 0x00 0x5f00000 0x20000>;
 		power-domains = <&k3_pds 337 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss1_core0: r5f@5e00000 {
 			compatible = "ti,j721s2-r5f";
@@ -2228,6 +2232,7 @@ main_r5fss1_core0: r5f@5e00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss1_core1: r5f@5f00000 {
@@ -2243,6 +2248,7 @@ main_r5fss1_core1: r5f@5f00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
@@ -2254,6 +2260,7 @@ main_r5fss2: r5fss@5900000 {
 		ranges = <0x5900000 0x00 0x5900000 0x20000>,
 			 <0x5a00000 0x00 0x5a00000 0x20000>;
 		power-domains = <&k3_pds 338 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss2_core0: r5f@5900000 {
 			compatible = "ti,j721s2-r5f";
@@ -2268,6 +2275,7 @@ main_r5fss2_core0: r5f@5900000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss2_core1: r5f@5a00000 {
@@ -2283,6 +2291,7 @@ main_r5fss2_core1: r5f@5a00000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-mcu-wakeup-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-mcu-wakeup-common.dtsi
index 52e2965a3bf5..cc22bfb5f599 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-mcu-wakeup-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-mcu-wakeup-common.dtsi
@@ -595,6 +595,7 @@ mcu_r5fss0: r5fss@41000000 {
 		ranges = <0x41000000 0x00 0x41000000 0x20000>,
 			 <0x41400000 0x00 0x41400000 0x20000>;
 		power-domains = <&k3_pds 345 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		mcu_r5fss0_core0: r5f@41000000 {
 			compatible = "ti,j721s2-r5f";
@@ -609,6 +610,7 @@ mcu_r5fss0_core0: r5f@41000000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		mcu_r5fss0_core1: r5f@41400000 {
@@ -624,6 +626,7 @@ mcu_r5fss0_core1: r5f@41400000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
-- 
2.34.1

[PATCH v2 05/33] arm64: dts: ti: k3-am62p-j722s: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level AM62P-J722S common SoC dtsi
files are incomplete without the memory carveouts and mailbox
assignments which are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 13/33] to [PATCH v2 05/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-14-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi    | 1 +
 arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi | 1 +
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts                  | 2 ++
 arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts           | 3 +++
 arch/arm64/boot/dts/ti/k3-j722s-evm.dts                  | 3 +++
 arch/arm64/boot/dts/ti/k3-j722s-main.dtsi                | 1 +
 6 files changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi
index bd6a00d13aea..5288c959f3c1 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi
@@ -205,6 +205,7 @@ mcu_r5fss0_core0: r5f@79000000 {
 			ti,atcm-enable = <0>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <0>;
+			status = "disabled";
 		};
 	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
index 6757b37a9de3..8612b45e665c 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
@@ -136,6 +136,7 @@ wkup_r5fss0_core0: r5f@78000000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index 899da7896563..2755598fd1f5 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -725,6 +725,7 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0 {
@@ -735,6 +736,7 @@ &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_uart0 {
diff --git a/arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts b/arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts
index bf9b23df1da2..b329e4cb0c37 100644
--- a/arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts
+++ b/arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts
@@ -515,6 +515,7 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_wkup_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0 {
@@ -525,6 +526,7 @@ &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0 {
@@ -535,6 +537,7 @@ &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster3 &mbox_main_r5_0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &c7x_0 {
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index 9d8abfa9afd2..2b9e007432a9 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -850,6 +850,7 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_wkup_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0 {
@@ -860,6 +861,7 @@ &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0 {
@@ -870,6 +872,7 @@ &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster3 &mbox_main_r5_0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &c7x_0 {
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
index 993828872dfb..d57fdd38bdce 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
@@ -368,6 +368,7 @@ main_r5fss0_core0: r5f@78400000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
-- 
2.34.1

[PATCH v2 06/33] arm64: dts: ti: k3-am62: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level AM62x SoC dtsi files are
incomplete without the memory carveouts and mailbox assignments which
are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 21/33] to [PATCH v2 06/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-22-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi | 1 +
 arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi      | 1 +
 arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi  | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
index 10e6b5c08619..dcd22ff487ec 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
@@ -407,4 +407,5 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
index 6549b7efa656..75aed3a88284 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
@@ -128,6 +128,7 @@ wkup_r5fss0_core0: r5f@78000000 {
 			ti,sci = <&dmsc>;
 			ti,sci-dev-id = <121>;
 			ti,sci-proc-ids = <0x01 0xff>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 13e1d36123d5..840772060cb1 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -506,6 +506,7 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &usbss0 {
-- 
2.34.1

[PATCH v2 07/33] arm64: dts: ti: k3-am62a: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level AM62A SoC dtsi files are
incomplete without the memory carveouts and mailbox assignments which
are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 24/33] to [PATCH v2 07/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-25-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi         | 1 +
 arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi | 2 ++
 arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi      | 1 +
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts          | 2 ++
 arch/arm64/boot/dts/ti/k3-am62d2-evm.dts         | 1 +
 5 files changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
index ee961ced7208..d22caa7c346b 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
@@ -197,6 +197,7 @@ mcu_r5fss0_core0: r5f@79000000 {
 			ti,sci = <&dmsc>;
 			ti,sci-dev-id = <9>;
 			ti,sci-proc-ids = <0x03 0xff>;
+			status = "disabled";
 		};
 	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
index 207ca00630d1..403adfbf7dce 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
@@ -406,6 +406,7 @@ &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_mcu_r5_0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &ospi0 {
@@ -444,4 +445,5 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0  &mbox_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
index 9ef1c829a9df..23877dadc98d 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
@@ -127,6 +127,7 @@ wkup_r5fss0_core0: r5f@78000000 {
 			ti,sci = <&dmsc>;
 			ti,sci-dev-id = <121>;
 			ti,sci-proc-ids = <0x01 0xff>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index bceead5e288e..03291862f07a 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -870,6 +870,7 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0>, <&mbox_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &mcu_r5fss0 {
@@ -880,6 +881,7 @@ &mcu_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster2>, <&mbox_mcu_r5_0>;
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &c7x_0 {
diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
index daea18b0bc61..d45fc42b03f3 100644
--- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
@@ -586,6 +586,7 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 	bootph-pre-ram;
 };
 
-- 
2.34.1

[PATCH v2 08/33] arm64: dts: ti: k3-am64: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level AM64x SoC dtsi files are
incomplete without the memory carveouts and mailbox assignments which
are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 26/33] to [PATCH v2 08/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-27-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am64-main.dtsi        |  6 ++++++
 arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi | 12 ++++++++++++
 arch/arm64/boot/dts/ti/k3-am642-evm.dts         | 12 ++++++++++++
 arch/arm64/boot/dts/ti/k3-am642-sk.dts          | 12 ++++++++++++
 arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi     | 12 ++++++++++++
 arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi  | 12 ++++++++++++
 6 files changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index c7e5da37486a..d872cc671094 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -921,6 +921,7 @@ main_r5fss0: r5fss@78000000 {
 			 <0x78200000 0x00 0x78200000 0x08000>,
 			 <0x78300000 0x00 0x78300000 0x08000>;
 		power-domains = <&k3_pds 119 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss0_core0: r5f@78000000 {
 			compatible = "ti,am64-r5f";
@@ -935,6 +936,7 @@ main_r5fss0_core0: r5f@78000000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss0_core1: r5f@78200000 {
@@ -950,6 +952,7 @@ main_r5fss0_core1: r5f@78200000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
@@ -963,6 +966,7 @@ main_r5fss1: r5fss@78400000 {
 			 <0x78600000 0x00 0x78600000 0x08000>,
 			 <0x78700000 0x00 0x78700000 0x08000>;
 		power-domains = <&k3_pds 120 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		main_r5fss1_core0: r5f@78400000 {
 			compatible = "ti,am64-r5f";
@@ -977,6 +981,7 @@ main_r5fss1_core0: r5f@78400000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		main_r5fss1_core1: r5f@78600000 {
@@ -992,6 +997,7 @@ main_r5fss1_core1: r5f@78600000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
index d9d491b12c33..03c46d74ebb5 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
@@ -349,28 +349,40 @@ &main_pktdma {
 	bootph-all;
 };
 
+&main_r5fss0 {
+	status = "okay";
+};
+
 &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1 {
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 &mcu_m4fss {
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index e01866372293..a07503b192c9 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -764,28 +764,40 @@ mbox_m4_0: mbox-m4-0 {
 	};
 };
 
+&main_r5fss0 {
+	status = "okay";
+};
+
 &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1 {
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 &mcu_m4fss {
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 1deaa0be0085..ae4a6552644c 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -679,28 +679,40 @@ mbox_m4_0: mbox-m4-0 {
 	};
 };
 
+&main_r5fss0 {
+	status = "okay";
+};
+
 &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1 {
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 &mcu_m4fss {
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
index a5cec9a07510..d0c1e4dc1da7 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
@@ -488,28 +488,40 @@ AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* USB0_DRVVBUS.USB0_DRVVBUS */
 	};
 };
 
+&main_r5fss0 {
+	status = "okay";
+};
+
 &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1 {
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 /* SoC default UART console */
diff --git a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
index 828d815d6bdf..876cbb21961d 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
@@ -167,28 +167,40 @@ mbox_m4_0: mbox-m4-0 {
 	};
 };
 
+&main_r5fss0 {
+	status = "okay";
+};
+
 &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
 			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss0_core1 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
 	memory-region = <&main_r5fss0_core1_dma_memory_region>,
 			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1 {
+	status = "okay";
 };
 
 &main_r5fss1_core0 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
 	memory-region = <&main_r5fss1_core0_dma_memory_region>,
 			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
 };
 
 &main_r5fss1_core1 {
 	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
 	memory-region = <&main_r5fss1_core1_dma_memory_region>,
 			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
 };
 
 &ospi0 {
-- 
2.34.1

[PATCH v2 09/33] arm64: dts: ti: k3-am65: Enable remote processors at board level

[Beleswar Padhi]

Remote Processors defined in top-level AM65x SoC dtsi files are
incomplete without the memory carveouts and mailbox assignments which
are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 31/33] to [PATCH v2 09/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-32-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 6 ++++++
 arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi            | 3 +++
 arch/arm64/boot/dts/ti/k3-am654-base-board.dts     | 6 ++++++
 3 files changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index e5136ed94765..73936994a156 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -602,16 +602,22 @@ mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
+	status = "okay";
 };
 
 &mcu_r5fss0_core1 {
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
 	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5fss0_core1>;
+	status = "okay";
 };
 
 &mcu_rti1 {
diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
index 7cf1f646500a..f6d9a5779918 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -408,6 +408,7 @@ mcu_r5fss0: r5fss@41000000 {
 		ranges = <0x41000000 0x00 0x41000000 0x20000>,
 			 <0x41400000 0x00 0x41400000 0x20000>;
 		power-domains = <&k3_pds 129 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
 
 		mcu_r5fss0_core0: r5f@41000000 {
 			compatible = "ti,am654-r5f";
@@ -422,6 +423,7 @@ mcu_r5fss0_core0: r5f@41000000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 
 		mcu_r5fss0_core1: r5f@41400000 {
@@ -437,6 +439,7 @@ mcu_r5fss0_core1: r5f@41400000 {
 			ti,atcm-enable = <1>;
 			ti,btcm-enable = <1>;
 			ti,loczrama = <1>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index e589690c7c82..39c2d46801de 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -541,16 +541,22 @@ mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
 	};
 };
 
+&mcu_r5fss0 {
+	status = "okay";
+};
+
 &mcu_r5fss0_core0 {
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
 	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
+	status = "okay";
 };
 
 &mcu_r5fss0_core1 {
 	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
 			<&mcu_r5fss0_core1_memory_region>;
 	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5fss0_core1>;
+	status = "okay";
 };
 
 &ospi0 {
-- 
2.34.1

[PATCH v2 10/33] arm64: dts: ti: k3-am62: Enable Mailbox nodes at the board level

[Beleswar Padhi]

Mailbox nodes defined in the top-level AM62x SoC dtsi files are
incomplete and may not be functional unless they are extended with a
chosen interrupt and connection to a remote processor.

As the remote processors depend on memory nodes which are only known at
the board integration level, these nodes should only be enabled when
provided with the above information.

Disable the Mailbox nodes in the dtsi files and only enable the ones
that are actually used on a given board.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 20/33] to [PATCH v2 10/33].
2. Added new-line before sub-nodes in mailboxes.

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-21-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am62-main.dtsi         | 1 +
 arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts | 2 ++
 arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi       | 2 ++
 3 files changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 029380dc1a35..40fb3c9e674c 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -808,6 +808,7 @@ mailbox0_cluster0: mailbox@29000000 {
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	ecap0: pwm@23100000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
index 2e4cf65ee323..2eee5f638e0f 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
@@ -293,6 +293,8 @@ &epwm2 {
 };
 
 &mailbox0_cluster0 {
+	status = "okay";
+
 	mbox_m4_0: mbox-m4-0 {
 		ti,mbox-rx = <0 0 0>;
 		ti,mbox-tx = <1 0 0>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
index bc2289d74774..bbf2d630b305 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
@@ -1317,6 +1317,8 @@ &main_i2c3 {
 };
 
 &mailbox0_cluster0 {
+	status = "okay";
+
 	mbox_m4_0: mbox-m4-0 {
 		ti,mbox-rx = <0 0 0>;
 		ti,mbox-tx = <1 0 0>;
-- 
2.34.1

[PATCH v2 11/33] arm64: dts: ti: k3-am62a: Enable Mailbox nodes at the board level

[Beleswar Padhi]

Mailbox nodes defined in the top-level AM62A SoC dtsi files are
incomplete and may not be functional unless they are extended with a
chosen interrupt and connection to a remote processor.

As the remote processors depend on memory nodes which are only known at
the board integration level, these nodes should only be enabled when
provided with the above information.

Disable the Mailbox nodes in the dtsi files and only enable the ones
that are actually used on a given board.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 23/33] to [PATCH v2 11/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-24-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index 9cad79d7bbc1..d5f018768981 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -804,6 +804,7 @@ mailbox0_cluster0: mailbox@29000000 {
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	mailbox0_cluster1: mailbox@29010000 {
@@ -813,6 +814,7 @@ mailbox0_cluster1: mailbox@29010000 {
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	mailbox0_cluster2: mailbox@29020000 {
@@ -822,6 +824,7 @@ mailbox0_cluster2: mailbox@29020000 {
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	mailbox0_cluster3: mailbox@29030000 {
@@ -831,6 +834,7 @@ mailbox0_cluster3: mailbox@29030000 {
 		#mbox-cells = <1>;
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
+		status = "disabled";
 	};
 
 	main_mcan0: can@20701000 {
-- 
2.34.1

[PATCH v2 12/33] arm64: dts: ti: k3-am6*-boards: Add label to reserved-memory node

[Beleswar Padhi]

Add the label name 'reserved_memory' to the reserved-memory node in all
K3 AM6* board level dts files. This is done so that the node can be
referenced and extended to add more carveout entries as needed in future
refactoring patches.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 15/33] to [PATCH v2 12/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-16-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi         | 2 +-
 arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi   | 2 +-
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts            | 2 +-
 arch/arm64/boot/dts/ti/k3-am62d2-evm.dts           | 2 +-
 arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi        | 2 +-
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts            | 2 +-
 arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi     | 2 +-
 arch/arm64/boot/dts/ti/k3-am642-evm.dts            | 2 +-
 arch/arm64/boot/dts/ti/k3-am642-sk.dts             | 2 +-
 arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi        | 2 +-
 arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi     | 2 +-
 arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 2 +-
 arch/arm64/boot/dts/ti/k3-am654-base-board.dts     | 2 +-
 13 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
index bbf2d630b305..cbbcb96e2e24 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
@@ -189,7 +189,7 @@ reg_usb0_vbus: regulator-usb0-vbus {
 		regulator-name = "USB_1_EN";
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
index 403adfbf7dce..3108e9b0c804 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
@@ -45,7 +45,7 @@ memory@80000000 {
 		bootph-all;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 03291862f07a..7ebcfe8edfe1 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -39,7 +39,7 @@ memory@80000000 {
 		bootph-all;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
index d45fc42b03f3..41860ac42f3c 100644
--- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
@@ -39,7 +39,7 @@ memory@80000000 {
 		bootph-all;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
index a2fdc6741da2..6a04b370d149 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
@@ -147,7 +147,7 @@ reg_vsodimm: regulator-vsodimm {
 		regulator-name = "+V_SODIMM";
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index 2755598fd1f5..c5b5b00c42b9 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -44,7 +44,7 @@ memory@80000000 {
 		bootph-pre-ram;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 840772060cb1..03b8e246d8c2 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -36,7 +36,7 @@ memory@80000000 {
 		reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index a07503b192c9..7640c5efe9b8 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -42,7 +42,7 @@ memory@80000000 {
 		reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index ae4a6552644c..fb8bd66f2f94 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -40,7 +40,7 @@ memory@80000000 {
 		reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
index d0c1e4dc1da7..81adae0a8e55 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
@@ -105,7 +105,7 @@ memory@80000000 {
 		device_type = "memory";
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
index 876cbb21961d..40b619c9a6c9 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
@@ -20,7 +20,7 @@ memory@80000000 {
 
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index 73936994a156..6cd499ea53e7 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -36,7 +36,7 @@ chosen {
 		stdout-path = "serial3:115200n8";
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index 39c2d46801de..e532ea0a22b2 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -39,7 +39,7 @@ memory@80000000 {
 		      <0x00000008 0x80000000 0x00000000 0x80000000>;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
-- 
2.34.1

[PATCH v2 13/33] arm64: dts: ti: k3-j721e-beagleboneai64: Add missing cfg for TI IPC FW

[Beleswar Padhi]

The TI IPC Firmwares running on J721E SoCs use certain MAIN domain
timers as tick. Reserve those at board level DT to avoid remote
processor crashes. This config aligns with other J721E boards and can
be refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
Cc: Robert Nelson <robertcnelson@gmail.com>
Requesting for review/test of this patch.

v2: Changelog:
1. Split [PATCH 06/33] into [PATCH v2 13/33] and [PATCH v2 22/33].
This patch only reserves the timer nodes used by rproc firmware.

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-7-b-padhi@ti.com/

 .../boot/dts/ti/k3-j721e-beagleboneai64.dts   | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
index 0d1a313a7d10..2ff4cdf1300f 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
@@ -935,6 +935,35 @@ mbox_c71_0: mbox-c71-0 {
 	};
 };
 
+/* Timers are used by Remoteproc firmware */
+&main_timer0 {
+	status = "reserved";
+};
+
+&main_timer1 {
+	status = "reserved";
+};
+
+&main_timer2 {
+	status = "reserved";
+};
+
+&main_timer12 {
+	status = "reserved";
+};
+
+&main_timer13 {
+	status = "reserved";
+};
+
+&main_timer14 {
+	status = "reserved";
+};
+
+&main_timer15 {
+	status = "reserved";
+};
+
 &mcu_r5fss0 {
 	status = "okay";
 };
-- 
2.34.1

[PATCH v2 14/33] arm64: dts: ti: k3-am62p-verdin: Add missing cfg for TI IPC Firmware

[Beleswar Padhi]

The wkup_r5fss0_core0_memory_region is used to store the text/data
sections of the Device Manager (DM) firmware itself and is necessary for
platform boot. Whereas the wkup_r5fss0_core0_dma_memory_region is used
for allocating the Virtio buffers needed for IPC with the DM core which
could be optional. The labels were incorrectly used in the
k3-am62p-verdin.dtsi file. Correct the firmware memory region label.

Currently, only mailbox node is enabled with FIFO assignment. However,
there are no users of the enabled mailboxes. Add the missing carveouts
for WKUP and MCU R5F remote processors, and enable those by associating
to the above carveout and mailboxes. This config aligns with other AM62P
boards and can be refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Verdin AM62P
---
Cc: Francesco Dolcini <francesco.dolcini@toradex.com>
Cc: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Cc: Parth Pancholi <parth.pancholi@toradex.com>
Cc: Jo_o Paulo Gon_alves <joao.goncalves@toradex.com>
Cc: Hiago De Franco <hiago.franco@toradex.com>
Requesting for a review/test.

v2: Changelog:
1. Re-ordered patch from [PATCH 16/33] to [PATCH v2 14/33].
2. Added T/B tag.

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-17-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi | 42 ++++++++++++++++++++-
 1 file changed, 41 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
index 6a04b370d149..0687debf3bbb 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
@@ -162,7 +162,25 @@ secure_ddr: optee@9e800000 {
 			no-map;
 		};
 
-		wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 {
+		mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@9b800000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9b800000 0x00 0x100000>;
+			no-map;
+		};
+
+		mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@9b900000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9b900000 0x00 0xf00000>;
+			no-map;
+		};
+
+		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9c800000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9c800000 0x00 0x100000>;
+			no-map;
+		};
+
+		wkup_r5fss0_core0_memory_region: r5f-memory@9c900000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9c900000 0x00 0x01e00000>;
 			no-map;
@@ -848,6 +866,28 @@ mbox_mcu_r5_0: mbox-mcu-r5-0 {
 	};
 };
 
+&wkup_r5fss0 {
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
 &main0_alert {
 	temperature = <95000>;
 };
-- 
2.34.1

[PATCH v2 15/33] arm64: dts: ti: k3-am62-verdin: Add missing cfg for TI IPC Firmware

[Beleswar Padhi]

The wkup_r5fss0_core0_memory_region is used to store the text/data
sections of the Device Manager (DM) firmware itself and is necessary for
platform boot. Whereas the wkup_r5fss0_core0_dma_memory_region is used
for allocating the Virtio buffers needed for IPC with the DM core which
could be optional. The labels were incorrectly used in the
k3-am62-verdin.dtsi file. Correct the firmware memory region label.

Currently, only mailbox node is enabled with FIFO assignment for a
single M4F remote core. However, there are no users of the enabled
mailboxes. Add the missing carveouts for WKUP R5F and MCU M4F remote
processors, and enable those by associating to the above carveout and
mailboxes. This config aligns with other AM62 boards and can be
refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Verdin AM62
---
Cc: Francesco Dolcini <francesco.dolcini@toradex.com>
Cc: Hiago De Franco <hiago.franco@toradex.com>
Cc: Jo_o Paulo Gon_alves <joao.goncalves@toradex.com>
Cc: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Cc: Max Krummenacher <max.krummenacher@toradex.com>
Cc: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
Requesting for review/test of this patch

v2: Changelog:
1. Re-ordered patch from [PATCH 18/33] to [PATCH v2 15/33].
2. Added T/B tag.

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-19-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 43 +++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
index cbbcb96e2e24..fa2c1dc738d6 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
@@ -206,7 +206,25 @@ secure_ddr: optee@9e800000 {
 			no-map;
 		};
 
-		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9db00000 {
+		mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9cb00000 0x00 0x100000>;
+			no-map;
+		};
+
+		mcu_m4fss_memory_region: m4f-memory@9cc00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9cc00000 0x00 0xe00000>;
+			no-map;
+		};
+
+		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9da00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9da00000 0x00 0x100000>;
+			no-map;
+		};
+
+		wkup_r5fss0_core0_memory_region: r5f-memory@9db00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9db00000 0x00 0xc00000>;
 			no-map;
@@ -1323,6 +1341,29 @@ mbox_m4_0: mbox-m4-0 {
 		ti,mbox-rx = <0 0 0>;
 		ti,mbox-tx = <1 0 0>;
 	};
+
+	mbox_r5_0: mbox-r5-0 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mcu_m4fss {
+	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
+	memory-region = <&mcu_m4fss_dma_memory_region>,
+			<&mcu_m4fss_memory_region>;
+	status = "okay";
+};
+
+&wkup_r5fss0 {
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 /* Verdin CAN_1 */
-- 
2.34.1

[PATCH v2 16/33] arm64: dts: ti: k3-am62-pocketbeagle2: Add missing cfg for TI IPC Firmware

[Beleswar Padhi]

The wkup_r5fss0_core0_memory_region is used to store the text/data
sections of the Device Manager (DM) firmware itself and is necessary for
platform boot. Whereas the wkup_r5fss0_core0_dma_memory_region is used
for allocating the Virtio buffers needed for IPC with the DM core which
could be optional. The labels were incorrectly used in the
k3-am62-pocketbeagle2.dts file. Correct the firmware memory region label

Currently, only mailbox node is enabled with FIFO assignment for a
single M4F remote core. Add the missing carveouts for WKUP R5F remote
processor, and enable that by associating to the above carveout and
mailbox. This config aligns with other AM62 boards and can be
refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
Cc: Robert Nelson <robertcnelson@gmail.com>
Requesting for review/test of this patch

v2: Changelog:
1. Re-ordered patch from [PATCH 19/33] to [PATCH v2 16/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-20-b-padhi@ti.com/

 .../boot/dts/ti/k3-am62-pocketbeagle2.dts     | 24 ++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
index 2eee5f638e0f..729901b2ca10 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
@@ -78,7 +78,13 @@ secure_ddr: optee@9e800000 {
 			no-map;
 		};
 
-		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9db00000 {
+		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9da00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9da00000 0x00 0x100000>;
+			no-map;
+		};
+
+		wkup_r5fss0_core0_memory_region: r5f-memory@9db00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9db00000 0x00 0xc00000>;
 			no-map;
@@ -299,6 +305,11 @@ mbox_m4_0: mbox-m4-0 {
 		ti,mbox-rx = <0 0 0>;
 		ti,mbox-tx = <1 0 0>;
 	};
+
+	mbox_r5_0: mbox-r5-0 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
 };
 
 &main_uart0 {
@@ -358,6 +369,17 @@ &mcu_m4fss {
 	status = "okay";
 };
 
+&wkup_r5fss0 {
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
 &mcu_pmx0 {
 	wkup_uart0_pins_default: wkup-uart0-default-pins {
 		pinctrl-single,pins = <
-- 
2.34.1

[PATCH v2 17/33] arm64: dts: ti: k3-am642-sr-som: Add missing cfg for TI IPC Firmware

[Beleswar Padhi]

Currently, only R5F remote processors are enabled for k3-am642-sr SoMs,
whereas the M4F in MCU domain is disabled. Enable the M4F remote
processor at board level by reserving memory carveouts and assigning
mailboxes.

While at it, reserve the MAIN domain timers that are used by R5F remote
processors for ticks to avoid rproc crashes. This config aligns with
other AM64 boards and can be refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
Cc: Josua Mayer <josua@solid-run.com>
Cc: Logan Bristol <logan.bristol@utexas.edu>
Cc: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Requesting for review/test of this patch.

v2: Changelog:
1. Re-ordered patch from [PATCH 27/33] to [PATCH v2 17/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-28-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi | 54 +++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
index 81adae0a8e55..8cb61f831734 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
@@ -162,6 +162,24 @@ main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
 			reg = <0x00 0xa3100000 0x00 0xf00000>;
 			no-map;
 		};
+
+		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa4000000 0x00 0x100000>;
+			no-map;
+		};
+
+		mcu_m4fss_memory_region: m4f-memory@a4100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa4100000 0x00 0xf00000>;
+			no-map;
+		};
+
+		rtos_ipc_memory_region: ipc-memories@a5000000 {
+			reg = <0x00 0xa5000000 0x00 0x00800000>;
+			alignment = <0x1000>;
+			no-map;
+		};
 	};
 
 	vdd_mmc0: regulator-vdd-mmc0 {
@@ -291,6 +309,35 @@ mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
 	};
 };
 
+&mailbox0_cluster6 {
+	status = "okay";
+
+	mbox_m4_0: mbox-m4-0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+};
+
+/* main_timer8 is used by r5f0-0 */
+&main_timer8 {
+	status = "reserved";
+};
+
+/* main_timer9 is used by r5f0-1 */
+&main_timer9 {
+	status = "reserved";
+};
+
+/* main_timer10 is used by r5f1-0 */
+&main_timer10 {
+	status = "reserved";
+};
+
+/* main_timer11 is used by r5f1-1 */
+&main_timer11 {
+	status = "reserved";
+};
+
 &main_i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c0_default_pins>;
@@ -524,6 +571,13 @@ &main_r5fss1_core1 {
 	status = "okay";
 };
 
+&mcu_m4fss {
+	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
+	memory-region = <&mcu_m4fss_dma_memory_region>,
+			<&mcu_m4fss_memory_region>;
+	status = "okay";
+};
+
 /* SoC default UART console */
 &main_uart0 {
 	pinctrl-names = "default";
-- 
2.34.1

[PATCH v2 18/33] arm64: dts: ti: k3-am64-phycore-som: Add missing cfg for TI IPC Firmware

[Beleswar Padhi]

The k3-am64-phycore SoM enables all R5F and M4F remote processors.
Reserve the MAIN domain timers that are used by R5F remote
processors for ticks to avoid rproc crashes. This config aligns with
other AM64 boards and can be refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
Cc: Wadim Egorov <w.egorov@phytec.de>
Cc: Matt McKee <mmckee@phytec.com>
Cc: Garrett Giordano <ggiordano@phytec.com>
Cc: Nathan Morrisson <nmorrisson@phytec.com>
Cc: John Ma <jma@phytec.com>
Cc: Logan Bristol <logan.bristol@utexas.edu>
Requesting for review/test of this patch.

v2: Changelog:
1. Re-ordered patch from [PATCH 28/33] to [PATCH v2 18/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-29-b-padhi@ti.com/

 .../boot/dts/ti/k3-am64-phycore-som.dtsi      | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
index 03c46d74ebb5..1efd547b2ba6 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
@@ -275,6 +275,30 @@ mbox_m4_0: mbox-m4-0 {
 	};
 };
 
+/* main_timer8 is used by r5f0-0 */
+&main_timer8 {
+	status = "reserved";
+};
+
+/* main_timer9 is used by r5f0-1 */
+&main_timer9 {
+	status = "reserved";
+};
+
+/* main_timer10 is used by r5f1-0 */
+&main_timer10 {
+	status = "reserved";
+};
+
+/* main_timer11 is used by r5f1-1 */
+&main_timer11 {
+	status = "reserved";
+};
+
+&main_r5fss0 {
+	status = "okay";
+};
+
 &main_i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c0_pins_default>;
-- 
2.34.1

[PATCH v2 19/33] arm64: dts: ti: k3-am642-tqma64xxl: Add missing cfg for TI IPC Firmware

[Beleswar Padhi]

Currently, only R5F remote processors are enabled for k3-am642-tqma64xxl
whereas the M4F in MCU domain is disabled. Enable the M4F remote
processor at board level by reserving memory carveouts and assigning
mailboxes.

While at it, reserve the MAIN domain timers that are used by R5F remote
processors for ticks to avoid rproc crashes. This config aligns with
other AM64 boards and can be refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
Cc: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Request for review/test of this patch.

v2: Changelog:
1. Re-ordered patch from [PATCH 29/33] to [PATCH v2 19/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-30-b-padhi@ti.com/

 .../arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
index 40b619c9a6c9..860b79aa5ef5 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
@@ -79,6 +79,18 @@ main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
 			no-map;
 		};
 
+		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa4000000 0x00 0x100000>;
+			no-map;
+		};
+
+		mcu_m4fss_memory_region: m4f-memory@a4100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa4100000 0x00 0xf00000>;
+			no-map;
+		};
+
 		rtos_ipc_memory_region: ipc-memories@a5000000 {
 			reg = <0x00 0xa5000000 0x00 0x00800000>;
 			alignment = <0x1000>;
@@ -167,6 +179,26 @@ mbox_m4_0: mbox-m4-0 {
 	};
 };
 
+/* main_timer8 is used by r5f0-0 */
+&main_timer8 {
+	status = "reserved";
+};
+
+/* main_timer9 is used by r5f0-1 */
+&main_timer9 {
+	status = "reserved";
+};
+
+/* main_timer10 is used by r5f1-0 */
+&main_timer10 {
+	status = "reserved";
+};
+
+/* main_timer11 is used by r5f1-1 */
+&main_timer11 {
+	status = "reserved";
+};
+
 &main_r5fss0 {
 	status = "okay";
 };
@@ -203,6 +235,13 @@ &main_r5fss1_core1 {
 	status = "okay";
 };
 
+&mcu_m4fss {
+	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
+	memory-region = <&mcu_m4fss_dma_memory_region>,
+			<&mcu_m4fss_memory_region>;
+	status = "okay";
+};
+
 &ospi0 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
2.34.1

[PATCH v2 20/33] Revert "arm64: dts: ti: k3-j721e-sk: Fix reversed C6x carveout locations"

[Beleswar Padhi]

This reverts commit 9f3814a7c06b7c7296cf8c1622078ad71820454b.

The C6x carveouts are reversed intentionally. This is due to the
requirement to keep the DMA memory region as non-cached, however the
minimum granular cache region for C6x is 16MB. So, C66x_0 marks the
entire C66x_1 16MB memory carveouts as non-cached, and uses the DMA
memory region of C66x_1 as its own, and vice-versa.

This was also called out in the original commit which introduced these
reversed carveouts:
	"The minimum granularity on the Cache settings on C66x DSP cores
	is 16MB, so the DMA memory regions are chosen such that they are
	in separate 16MB regions for each DSP, while reserving a total
	of 16 MB for each DSP and not changing the overall DSP
	remoteproc carveouts."

Fixes: 9f3814a7c06b ("arm64: dts: ti: k3-j721e-sk: Fix reversed C6x carveout locations")
Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 03/33] to [PATCH v2 20/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-4-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 62b9c13a91e7..5d60aa9bc42b 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -120,7 +120,8 @@ main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
 			no-map;
 		};
 
-		c66_0_dma_memory_region: c66-dma-memory@a6000000 {
+		/* Carveout locations are flipped due to caching */
+		c66_1_dma_memory_region: c66-dma-memory@a6000000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0xa6000000 0x00 0x100000>;
 			no-map;
@@ -132,7 +133,8 @@ c66_0_memory_region: c66-memory@a6100000 {
 			no-map;
 		};
 
-		c66_1_dma_memory_region: c66-dma-memory@a7000000 {
+		/* Carveout locations are flipped due to caching */
+		c66_0_dma_memory_region: c66-dma-memory@a7000000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0xa7000000 0x00 0x100000>;
 			no-map;
-- 
2.34.1

[PATCH v2 21/33] Revert "arm64: dts: ti: k3-j721e-beagleboneai64: Fix reversed C6x carveout locations"

[Beleswar Padhi]

This reverts commit 1a314099b7559690fe23cdf3300dfff6e830ecb1.

The C6x carveouts are reversed intentionally. This is due to the
requirement to keep the DMA memory region as non-cached, however the
minimum granular cache region for C6x is 16MB. So, C66x_0 marks the
entire C66x_1 16MB memory carveouts as non-cached, and uses the DMA
memory region of C66x_1 as its own, and vice-versa.

This was also called out in the original commit which introduced these
reversed carveouts:
	"The minimum granularity on the Cache settings on C66x DSP
	cores is 16MB, so the DMA memory regions are chosen such that
	they are in separate 16MB regions for each DSP, while reserving
	a total of 16 MB for each DSP and not changing the overall DSP
        remoteproc carveouts."

Fixes: 1a314099b755 ("arm64: dts: ti: k3-j721e-beagleboneai64: Fix reversed C6x carveout locations")
Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 04/33] to [PATCH v2 21/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-5-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
index 2ff4cdf1300f..f82966072605 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
@@ -123,7 +123,8 @@ main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
 			no-map;
 		};
 
-		c66_0_dma_memory_region: c66-dma-memory@a6000000 {
+		/* Carveout locations are flipped due to caching */
+		c66_1_dma_memory_region: c66-dma-memory@a6000000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0xa6000000 0x00 0x100000>;
 			no-map;
@@ -135,7 +136,8 @@ c66_0_memory_region: c66-memory@a6100000 {
 			no-map;
 		};
 
-		c66_1_dma_memory_region: c66-dma-memory@a7000000 {
+		/* Carveout locations are flipped due to caching */
+		c66_0_dma_memory_region: c66-dma-memory@a7000000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0xa7000000 0x00 0x100000>;
 			no-map;
-- 
2.34.1

[PATCH v2 22/33] arm64: dts: ti: k3-j721e-beagleboneai64: Switch MAIN R5F clusters to Split-mode

[Beleswar Padhi]

Switch the MAIN domain R5F clusters into split mode to maximize the
number of R5F processors. The TI IPC firmware for the split processors
is already available public. This config aligns with other J721E boards
and can be refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
Cc: Robert Nelson <robertcnelson@gmail.com>
Requesting for review/test of this patch.

v2: Changelog:
1. Split patch from [PATCH 06/33] to [PATCH v2 13/33] and [PATCH v2 22/33].
This patch switches the Main domain R5Fs into split mode.

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-7-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
index f82966072605..c7ac2b66ee0d 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
@@ -985,6 +985,7 @@ &mcu_r5fss0_core1 {
 };
 
 &main_r5fss0 {
+	ti,cluster-mode = <0>;
 	status = "okay";
 };
 
@@ -1003,6 +1004,7 @@ &main_r5fss0_core1 {
 };
 
 &main_r5fss1 {
+	ti,cluster-mode = <0>;
 	status = "okay";
 };
 
-- 
2.34.1

[PATCH v2 23/33] arm64: dts: ti: k3-j7200-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 J7200 SoCs have multiple programmable remote processors like
R5Fs. The TI SDKs for J7200 SoCs offer sample firmwares which could be
run on these cores to demonstrate an "echo" IPC test. Those firmware
require certain memory carveouts to be reserved from system memory,
timers to be reserved, and certain mailbox configurations for interrupt
based messaging. These configurations could be different for a different
firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 02/33] to [PATCH v2 23/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-3-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi   | 124 +----------------
 .../boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi | 130 ++++++++++++++++++
 2 files changed, 132 insertions(+), 122 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
index 90befcdc8d08..0fcb6164f648 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
@@ -40,48 +40,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a4000000 {
-			reg = <0x00 0xa4000000 0x00 0x00800000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	mux0: mux-controller-0 {
@@ -224,86 +182,6 @@ partition@800000 {
 	};
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
 &main_i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c0_pins_default>;
@@ -546,3 +424,5 @@ &main_mcan0 {
 	pinctrl-names = "default";
 	phys = <&transceiver0>;
 };
+
+#include "k3-j7200-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..8eff7bd2e771
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on J7200 SoCs
+ *
+ * Copyright (C) 2020-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1000000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	rtos_ipc_memory_region: ipc-memories@a4000000 {
+		reg = <0x00 0xa4000000 0x00 0x00800000>;
+		alignment = <0x1000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+	interrupts = <436>;
+
+	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+	interrupts = <432>;
+
+	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+/* Timers are used by Remoteproc firmware */
+&main_timer0 {
+	status = "reserved";
+};
+
+&main_timer1 {
+	status = "reserved";
+};
+
+&main_timer2 {
+	status = "reserved";
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&mcu_r5fss0_core1 {
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
+	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
+			<&mcu_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss0 {
+	ti,cluster-mode = <0>;
+	status = "okay";
+};
+
+&main_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
+	memory-region = <&main_r5fss0_core0_dma_memory_region>,
+			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss0_core1 {
+	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
+	memory-region = <&main_r5fss0_core1_dma_memory_region>,
+			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
+};
-- 
2.34.1

[PATCH v2 24/33] arm64: dts: ti: k3-j721e-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 J721E SoCs have multiple programmable remote processors like
R5F, C6x, C7x etc. The TI SDKs for J721E SoCs offer sample firmwares
which could be run on these cores to demonstrate an "echo" IPC test.
Those firmware require certain memory carveouts to be reserved from
system memory, timers to be reserved, and certain mailbox configurations
for interrupt based messaging. These configurations could be different
for a different firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 07/33] to [PATCH v2 24/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-8-b-padhi@ti.com/

 .../boot/dts/ti/k3-j721e-beagleboneai64.dts   | 280 +----------------
 arch/arm64/boot/dts/ti/k3-j721e-sk.dts        | 280 +----------------
 arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi   | 278 +----------------
 .../boot/dts/ti/k3-j721e-ti-ipc-firmware.dtsi | 288 ++++++++++++++++++
 4 files changed, 291 insertions(+), 835 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
index c7ac2b66ee0d..7fc014a3f4e4 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
@@ -62,110 +62,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		/* Carveout locations are flipped due to caching */
-		c66_1_dma_memory_region: c66-dma-memory@a6000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c66_0_memory_region: c66-memory@a6100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		/* Carveout locations are flipped due to caching */
-		c66_0_dma_memory_region: c66-dma-memory@a7000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c66_1_memory_region: c66-memory@a7100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_0_dma_memory_region: c71-dma-memory@a8000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_0_memory_region: c71-memory@a8100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@aa000000 {
-			reg = <0x00 0xaa000000 0x00 0x01c00000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	gpio_keys: gpio-keys {
@@ -867,178 +763,4 @@ &ufs_wrapper {
 	status = "disabled";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-	interrupts = <428>;
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster3 {
-	status = "okay";
-	interrupts = <424>;
-
-	mbox_c66_0: mbox-c66-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c66_1: mbox-c66-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-	interrupts = <420>;
-
-	mbox_c71_0: mbox-c71-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_timer12 {
-	status = "reserved";
-};
-
-&main_timer13 {
-	status = "reserved";
-};
-
-&main_timer14 {
-	status = "reserved";
-};
-
-&main_timer15 {
-	status = "reserved";
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-};
-
-&mcu_r5fss0_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-};
-
-&main_r5fss0 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-};
-
-&main_r5fss0_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-};
-
-&main_r5fss1 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-};
-
-&main_r5fss1_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-};
-
-&c66_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster3 &mbox_c66_0>;
-	memory-region = <&c66_0_dma_memory_region>,
-			<&c66_0_memory_region>;
-};
-
-&c66_1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster3 &mbox_c66_1>;
-	memory-region = <&c66_1_dma_memory_region>,
-			<&c66_1_memory_region>;
-};
-
-&c71_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
-	memory-region = <&c71_0_dma_memory_region>,
-			<&c71_0_memory_region>;
-};
+#include "k3-j721e-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 5d60aa9bc42b..6db3ad63b017 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -59,110 +59,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		/* Carveout locations are flipped due to caching */
-		c66_1_dma_memory_region: c66-dma-memory@a6000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c66_0_memory_region: c66-memory@a6100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		/* Carveout locations are flipped due to caching */
-		c66_0_dma_memory_region: c66-dma-memory@a7000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c66_1_memory_region: c66-memory@a7100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_0_dma_memory_region: c71-dma-memory@a8000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_0_memory_region: c71-memory@a8100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@aa000000 {
-			reg = <0x00 0xaa000000 0x00 0x01c00000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	vusb_main: fixedregulator-vusb-main5v0 {
@@ -1281,178 +1177,4 @@ &ufs_wrapper {
 	status = "disabled";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-	interrupts = <428>;
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster3 {
-	status = "okay";
-	interrupts = <424>;
-
-	mbox_c66_0: mbox-c66-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c66_1: mbox-c66-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-	interrupts = <420>;
-
-	mbox_c71_0: mbox-c71-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-};
-
-&mcu_r5fss0_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-};
-
-&main_r5fss0 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_timer12 {
-	status = "reserved";
-};
-
-&main_timer13 {
-	status = "reserved";
-};
-
-&main_timer14 {
-	status = "reserved";
-};
-
-&main_timer15 {
-	status = "reserved";
-};
-
-&main_r5fss0_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-};
-
-&main_r5fss0_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-};
-
-&main_r5fss1_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-};
-
-&main_r5fss1_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-};
-
-&c66_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster3 &mbox_c66_0>;
-	memory-region = <&c66_0_dma_memory_region>,
-			<&c66_0_memory_region>;
-};
-
-&c66_1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster3 &mbox_c66_1>;
-	memory-region = <&c66_1_dma_memory_region>,
-			<&c66_1_memory_region>;
-};
-
-&c71_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
-	memory-region = <&c71_0_dma_memory_region>,
-			<&c71_0_memory_region>;
-};
+#include "k3-j721e-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
index 795b041ee733..5848ca30524d 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
@@ -40,108 +40,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c66_1_dma_memory_region: c66-dma-memory@a6000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c66_0_memory_region: c66-memory@a6100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c66_0_dma_memory_region: c66-dma-memory@a7000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c66_1_memory_region: c66-memory@a7100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_0_dma_memory_region: c71-dma-memory@a8000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_0_memory_region: c71-memory@a8100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@aa000000 {
-			reg = <0x00 0xaa000000 0x00 0x01c00000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 };
 
@@ -484,178 +382,4 @@ partition@800000 {
 	};
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-	interrupts = <428>;
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster3 {
-	status = "okay";
-	interrupts = <424>;
-
-	mbox_c66_0: mbox-c66-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c66_1: mbox-c66-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-	interrupts = <420>;
-
-	mbox_c71_0: mbox-c71-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-};
-
-&mcu_r5fss0_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-};
-
-&main_r5fss0 {
-	status = "okay";
-	ti,cluster-mode = <0>;
-};
-
-&main_r5fss1 {
-	status = "okay";
-	ti,cluster-mode = <0>;
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_timer12 {
-	status = "reserved";
-};
-
-&main_timer13 {
-	status = "reserved";
-};
-
-&main_timer14 {
-	status = "reserved";
-};
-
-&main_timer15 {
-	status = "reserved";
-};
-
-&main_r5fss0_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-};
-
-&main_r5fss0_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-};
-
-&main_r5fss1_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-};
-
-&main_r5fss1_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-};
-
-&c66_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster3 &mbox_c66_0>;
-	memory-region = <&c66_0_dma_memory_region>,
-			<&c66_0_memory_region>;
-};
-
-&c66_1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster3 &mbox_c66_1>;
-	memory-region = <&c66_1_dma_memory_region>,
-			<&c66_1_memory_region>;
-};
-
-&c71_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
-	memory-region = <&c71_0_dma_memory_region>,
-			<&c71_0_memory_region>;
-};
+#include "k3-j721e-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..5b3fa95aed76
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721e-ti-ipc-firmware.dtsi
@@ -0,0 +1,288 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on J721E SoCs
+ *
+ * Copyright (C) 2018-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1000000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa5000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa5100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	/* Carveout locations are flipped due to caching */
+	c66_1_dma_memory_region: c66-dma-memory@a6000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa6000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c66_0_memory_region: c66-memory@a6100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa6100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	/* Carveout locations are flipped due to caching */
+	c66_0_dma_memory_region: c66-dma-memory@a7000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa7000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c66_1_memory_region: c66-memory@a7100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa7100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	c71_0_dma_memory_region: c71-dma-memory@a8000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa8000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c71_0_memory_region: c71-memory@a8100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa8100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	rtos_ipc_memory_region: ipc-memories@aa000000 {
+		reg = <0x00 0xaa000000 0x00 0x01c00000>;
+		alignment = <0x1000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+	interrupts = <436>;
+
+	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+	interrupts = <432>;
+
+	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster2 {
+	status = "okay";
+	interrupts = <428>;
+
+	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster3 {
+	status = "okay";
+	interrupts = <424>;
+
+	mbox_c66_0: mbox-c66-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_c66_1: mbox-c66-1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster4 {
+	status = "okay";
+	interrupts = <420>;
+
+	mbox_c71_0: mbox-c71-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+/* Timers are used by Remoteproc firmware */
+&main_timer0 {
+	status = "reserved";
+};
+
+&main_timer1 {
+	status = "reserved";
+};
+
+&main_timer2 {
+	status = "reserved";
+};
+
+&main_timer12 {
+	status = "reserved";
+};
+
+&main_timer13 {
+	status = "reserved";
+};
+
+&main_timer14 {
+	status = "reserved";
+};
+
+&main_timer15 {
+	status = "reserved";
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+};
+
+&mcu_r5fss0_core1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
+	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
+			<&mcu_r5fss0_core1_memory_region>;
+};
+
+&main_r5fss0 {
+	status = "okay";
+	ti,cluster-mode = <0>;
+};
+
+&main_r5fss0_core0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
+	memory-region = <&main_r5fss0_core0_dma_memory_region>,
+			<&main_r5fss0_core0_memory_region>;
+};
+
+&main_r5fss0_core1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
+	memory-region = <&main_r5fss0_core1_dma_memory_region>,
+			<&main_r5fss0_core1_memory_region>;
+};
+
+&main_r5fss1 {
+	status = "okay";
+	ti,cluster-mode = <0>;
+};
+
+&main_r5fss1_core0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
+	memory-region = <&main_r5fss1_core0_dma_memory_region>,
+			<&main_r5fss1_core0_memory_region>;
+};
+
+&main_r5fss1_core1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
+	memory-region = <&main_r5fss1_core1_dma_memory_region>,
+			<&main_r5fss1_core1_memory_region>;
+};
+
+&c66_0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster3 &mbox_c66_0>;
+	memory-region = <&c66_0_dma_memory_region>,
+			<&c66_0_memory_region>;
+};
+
+&c66_1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster3 &mbox_c66_1>;
+	memory-region = <&c66_1_dma_memory_region>,
+			<&c66_1_memory_region>;
+};
+
+&c71_0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
+	memory-region = <&c71_0_dma_memory_region>,
+			<&c71_0_memory_region>;
+};
-- 
2.34.1

[PATCH v2 25/33] arm64: dts: ti: k3-j721s2-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 J721S2 SoCs have multiple programmable remote processors like
R5F, C7x etc. The TI SDKs for J721S2 SoCs offer sample firmwares which
could be run on these cores to demonstrate an "echo" IPC test. Those
firmware require certain memory carveouts to be reserved from system
memory, timers to be reserved, and certain mailbox configurations for
interrupt based messaging. These configurations could be different for a
different firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 09/33] to [PATCH v2 25/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-10-b-padhi@ti.com/

 .../boot/dts/ti/k3-am68-phycore-som.dtsi      | 247 +----------------
 arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi    | 241 +----------------
 arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi  | 243 +----------------
 .../dts/ti/k3-j721s2-ti-ipc-firmware.dtsi     | 253 ++++++++++++++++++
 4 files changed, 258 insertions(+), 726 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j721s2-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
index 383594732e81..21fe9083c19c 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am68-phycore-som.dtsi
@@ -60,96 +60,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_0_dma_memory_region: c71-dma-memory@a6000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_0_memory_region: c71-memory@a6100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_1_dma_memory_region: c71-dma-memory@a7000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_1_memory_region: c71-memory@a7100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a8000000 {
-			reg = <0x00 0xa8000000 0x00 0x01c00000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	vdd_sd_dv: regulator-sd {
@@ -243,80 +153,6 @@ J721S2_WKUP_IOPAD(0x09c, PIN_INPUT_PULLUP, 0) /* (H27) WKUP_I2C0_SDA */
 	};
 };
 
-&c71_0 {
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
-	memory-region = <&c71_0_dma_memory_region>,
-			<&c71_0_memory_region>;
-	status = "okay";
-};
-
-&c71_1 {
-	mboxes = <&mailbox0_cluster4 &mbox_c71_1>;
-	memory-region = <&c71_1_dma_memory_region>,
-			<&c71_1_memory_region>;
-	status = "okay";
-};
-
-&mailbox0_cluster0 {
-	interrupts = <436>;
-	status = "okay";
-
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	interrupts = <432>;
-	status = "okay";
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	interrupts = <428>;
-	status = "okay";
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster4 {
-	interrupts = <420>;
-	status = "okay";
-
-	mbox_c71_0: mbox-c71-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c71_1: mbox-c71-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
 &main_cpsw {
 	pinctrl-names = "default";
 	pinctrl-0 = <&rgmii1_pins_default>;
@@ -367,34 +203,6 @@ &main_gpio0 {
 	status = "okay";
 };
 
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
 /* eMMC */
 &main_sdhci0 {
 	non-removable;
@@ -409,59 +217,6 @@ &main_sdhci1 {
 	bootph-all;
 };
 
-&main_r5fss0 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_timer3 {
-	status = "reserved";
-};
-
-&main_timer4 {
-	status = "reserved";
-};
-
-&main_timer5 {
-	status = "reserved";
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
 &ospi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;
@@ -611,3 +366,5 @@ som_eeprom_opt: eeprom@51 {
 		pagesize = <32>;
 	};
 };
+
+#include "k3-j721s2-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
index 2d2edeeb7347..4b14fb1062bd 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
@@ -38,96 +38,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_0_dma_memory_region: c71-dma-memory@a6000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_0_memory_region: c71-memory@a6100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_1_dma_memory_region: c71-dma-memory@a7000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_1_memory_region: c71-memory@a7100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a8000000 {
-			reg = <0x00 0xa8000000 0x00 0x01c00000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 };
 
@@ -235,153 +145,4 @@ partition@3fc0000 {
 	};
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-	interrupts = <428>;
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-	interrupts = <420>;
-	mbox_c71_0: mbox-c71-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c71_1: mbox-c71-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_timer3 {
-	status = "reserved";
-};
-
-&main_timer4 {
-	status = "reserved";
-};
-
-&main_timer5 {
-	status = "reserved";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
-&c71_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
-	memory-region = <&c71_0_dma_memory_region>,
-			<&c71_0_memory_region>;
-};
-
-&c71_1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_1>;
-	memory-region = <&c71_1_dma_memory_region>,
-			<&c71_1_memory_region>;
-};
+#include "k3-j721s2-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
index f252007262d3..d4d996b985ae 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
@@ -42,96 +42,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_0_dma_memory_region: c71-dma-memory@a6000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_0_memory_region: c71-memory@a6100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_1_dma_memory_region: c71-dma-memory@a7000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_1_memory_region: c71-memory@a7100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a8000000 {
-			reg = <0x00 0xa8000000 0x00 0x01c00000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	mux0: mux-controller-0 {
@@ -516,157 +426,6 @@ partition@3fc0000 {
 	};
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-	interrupts = <428>;
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-	interrupts = <420>;
-	mbox_c71_0: mbox-c71-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c71_1: mbox-c71-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_timer3 {
-	status = "reserved";
-};
-
-&main_timer4 {
-	status = "reserved";
-};
-
-&main_timer5 {
-	status = "reserved";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
-&c71_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
-	memory-region = <&c71_0_dma_memory_region>,
-			<&c71_0_memory_region>;
-};
-
-&c71_1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_1>;
-	memory-region = <&c71_1_dma_memory_region>,
-			<&c71_1_memory_region>;
-};
-
 &main_i2c4 {
 	bridge_dsi_edp: bridge-dsi-edp@2c {
 		compatible = "ti,sn65dsi86";
@@ -693,3 +452,5 @@ port@1 {
 		};
 	};
 };
+
+#include "k3-j721s2-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..835da81ba78e
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-ti-ipc-firmware.dtsi
@@ -0,0 +1,253 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on J721S2 SoCs
+ *
+ * Copyright (C) 2021-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1000000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa5000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa5100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	c71_0_dma_memory_region: c71-dma-memory@a6000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa6000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c71_0_memory_region: c71-memory@a6100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa6100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	c71_1_dma_memory_region: c71-dma-memory@a7000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa7000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c71_1_memory_region: c71-memory@a7100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa7100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	rtos_ipc_memory_region: ipc-memories@a8000000 {
+		reg = <0x00 0xa8000000 0x00 0x01c00000>;
+		alignment = <0x1000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+	interrupts = <436>;
+
+	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+	interrupts = <432>;
+
+	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster2 {
+	status = "okay";
+	interrupts = <428>;
+
+	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster4 {
+	status = "okay";
+	interrupts = <420>;
+
+	mbox_c71_0: mbox-c71-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_c71_1: mbox-c71-1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+/* Timers are used by Remoteproc firmware */
+&main_timer0 {
+	status = "reserved";
+};
+
+&main_timer1 {
+	status = "reserved";
+};
+
+&main_timer2 {
+	status = "reserved";
+};
+
+&main_timer3 {
+	status = "reserved";
+};
+
+&main_timer4 {
+	status = "reserved";
+};
+
+&main_timer5 {
+	status = "reserved";
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&mcu_r5fss0_core1 {
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
+	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
+			<&mcu_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss0 {
+	ti,cluster-mode = <0>;
+	status = "okay";
+};
+
+&main_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
+	memory-region = <&main_r5fss0_core0_dma_memory_region>,
+			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss0_core1 {
+	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
+	memory-region = <&main_r5fss0_core1_dma_memory_region>,
+			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1 {
+	ti,cluster-mode = <0>;
+	status = "okay";
+};
+
+&main_r5fss1_core0 {
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
+	memory-region = <&main_r5fss1_core0_dma_memory_region>,
+			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1_core1 {
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
+	memory-region = <&main_r5fss1_core1_dma_memory_region>,
+			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
+};
+
+&c71_0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
+	memory-region = <&c71_0_dma_memory_region>,
+			<&c71_0_memory_region>;
+};
+
+&c71_1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster4 &mbox_c71_1>;
+	memory-region = <&c71_1_dma_memory_region>,
+			<&c71_1_memory_region>;
+};
-- 
2.34.1

[PATCH v2 26/33] arm64: dts: ti: k3-j784s4-j742s2-ti-ipc-firmware-common: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 J784S4/J742S2 SoCs have multiple programmable remote
processors like R5F, C7x etc. The TI SDKs for J784S4/J742S2 SoCs offer
sample firmwares which could be run on these cores to demonstrate an
"echo" IPC test. Those firmware require certain memory carveouts to be
reserved from system memory, timers to be reserved, and certain mailbox
configurations for interrupt based messaging. These configurations could
be different for a different firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 11/33] to [PATCH v2 26/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-12-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am69-sk.dts         | 336 +----------------
 .../dts/ti/k3-j784s4-j742s2-evm-common.dtsi   | 344 +----------------
 ...-j784s4-j742s2-ti-ipc-firmware-common.dtsi | 350 ++++++++++++++++++
 3 files changed, 354 insertions(+), 676 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index cea096733ba2..5e187e86a5d9 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -61,126 +61,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			no-map;
 		};
 
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss2_core0_dma_memory_region: r5f-dma-memory@a6000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss2_core0_memory_region: r5f-memory@a6100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss2_core1_dma_memory_region: r5f-dma-memory@a7000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss2_core1_memory_region: r5f-memory@a7100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_0_dma_memory_region: c71-dma-memory@a8000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_0_memory_region: c71-memory@a8100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_1_dma_memory_region: c71-dma-memory@a9000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa9000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_1_memory_region: c71-memory@a9100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa9100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_2_dma_memory_region: c71-dma-memory@aa000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xaa000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_2_memory_region: c71-memory@aa100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xaa100000 0x00 0xf00000>;
-			no-map;
-		};
-
 		c71_3_dma_memory_region: c71-dma-memory@ab000000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0xab000000 0x00 0x100000>;
@@ -640,84 +520,7 @@ &phy_gmii_sel {
 	bootph-all;
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-	interrupts = <428>;
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster3 {
-	status = "okay";
-	interrupts = <424>;
-	mbox_main_r5fss2_core0: mbox-main-r5fss2-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss2_core1: mbox-main-r5fss2-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-	interrupts = <420>;
-	mbox_c71_0: mbox-c71-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c71_1: mbox-c71-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
 &mailbox0_cluster5 {
-	status = "okay";
-	interrupts = <416>;
-	mbox_c71_2: mbox-c71-2 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
 	mbox_c71_3: mbox-c71-3 {
 		ti,mbox-rx = <2 0 0>;
 		ti,mbox-tx = <3 0 0>;
@@ -992,143 +795,6 @@ &mcu_cpsw_port1 {
 	bootph-all;
 };
 
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_timer3 {
-	status = "reserved";
-};
-
-&main_timer4 {
-	status = "reserved";
-};
-
-&main_timer5 {
-	status = "reserved";
-};
-
-&main_timer6 {
-	status = "reserved";
-};
-
-&main_timer7 {
-	status = "reserved";
-};
-
-&main_timer8 {
-	status = "reserved";
-};
-
-&main_timer9 {
-	status = "reserved";
-};
-
-&main_r5fss2 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss2_core0 {
-	mboxes = <&mailbox0_cluster3 &mbox_main_r5fss2_core0>;
-	memory-region = <&main_r5fss2_core0_dma_memory_region>,
-			<&main_r5fss2_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss2_core1 {
-	mboxes = <&mailbox0_cluster3 &mbox_main_r5fss2_core1>;
-	memory-region = <&main_r5fss2_core1_dma_memory_region>,
-			<&main_r5fss2_core1_memory_region>;
-	status = "okay";
-};
-
-&c71_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
-	memory-region = <&c71_0_dma_memory_region>,
-			<&c71_0_memory_region>;
-};
-
-&c71_1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_1>;
-	memory-region = <&c71_1_dma_memory_region>,
-			<&c71_1_memory_region>;
-};
-
-&c71_2 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster5 &mbox_c71_2>;
-	memory-region = <&c71_2_dma_memory_region>,
-			<&c71_2_memory_region>;
-};
-
 &c71_3 {
 	status = "okay";
 	mboxes = <&mailbox0_cluster5 &mbox_c71_3>;
@@ -1410,3 +1076,5 @@ &usb0 {
 	phys = <&serdes0_usb_link>;
 	phy-names = "cdns3,usb3-phy";
 };
+
+#include "k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
index c269e5b29b96..9e233400a648 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
@@ -46,126 +46,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa5100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss2_core0_dma_memory_region: r5f-dma-memory@a6000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss2_core0_memory_region: r5f-memory@a6100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa6100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss2_core1_dma_memory_region: r5f-dma-memory@a7000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss2_core1_memory_region: r5f-memory@a7100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa7100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_0_dma_memory_region: c71-dma-memory@a8000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_0_memory_region: c71-memory@a8100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa8100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_1_dma_memory_region: c71-dma-memory@a9000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa9000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_1_memory_region: c71-memory@a9100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa9100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c71_2_dma_memory_region: c71-dma-memory@aa000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xaa000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_2_memory_region: c71-memory@aa100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xaa100000 0x00 0xf00000>;
-			no-map;
-		};
 	};
 
 	evm_12v0: regulator-evm12v0 {
@@ -1069,228 +949,6 @@ &main_cpsw1_port1 {
 	status = "okay";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-	interrupts = <428>;
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster3 {
-	status = "okay";
-	interrupts = <424>;
-
-	mbox_main_r5fss2_core0: mbox-main-r5fss2-core0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_main_r5fss2_core1: mbox-main-r5fss2-core1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-	interrupts = <420>;
-
-	mbox_c71_0: mbox-c71-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c71_1: mbox-c71-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mailbox0_cluster5 {
-	status = "okay";
-	interrupts = <416>;
-
-	mbox_c71_2: mbox-c71-2 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-};
-
-&mcu_r5fss0_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-};
-
-&main_r5fss0 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-&main_r5fss2 {
-	ti,cluster-mode = <0>;
-	status = "okay";
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&main_timer3 {
-	status = "reserved";
-};
-
-&main_timer4 {
-	status = "reserved";
-};
-
-&main_timer5 {
-	status = "reserved";
-};
-
-&main_timer6 {
-	status = "reserved";
-};
-
-&main_timer7 {
-	status = "reserved";
-};
-
-&main_timer8 {
-	status = "reserved";
-};
-
-&main_timer9 {
-	status = "reserved";
-};
-
-&main_r5fss0_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-};
-
-&main_r5fss0_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-};
-
-&main_r5fss1_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-};
-
-&main_r5fss1_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-};
-
-&main_r5fss2_core0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster3 &mbox_main_r5fss2_core0>;
-	memory-region = <&main_r5fss2_core0_dma_memory_region>,
-			<&main_r5fss2_core0_memory_region>;
-};
-
-&main_r5fss2_core1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster3 &mbox_main_r5fss2_core1>;
-	memory-region = <&main_r5fss2_core1_dma_memory_region>,
-			<&main_r5fss2_core1_memory_region>;
-};
-
-&c71_0 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
-	memory-region = <&c71_0_dma_memory_region>,
-			<&c71_0_memory_region>;
-};
-
-&c71_1 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster4 &mbox_c71_1>;
-	memory-region = <&c71_1_dma_memory_region>,
-			<&c71_1_memory_region>;
-};
-
-&c71_2 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster5 &mbox_c71_2>;
-	memory-region = <&c71_2_dma_memory_region>,
-			<&c71_2_memory_region>;
-};
-
 &tscadc0 {
 	pinctrl-0 = <&mcu_adc0_pins_default>;
 	pinctrl-names = "default";
@@ -1619,3 +1277,5 @@ &mcasp0 {
 		0 0 0 0
 	>;
 };
+
+#include "k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi
new file mode 100644
index 000000000000..b5a4496a05bf
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi
@@ -0,0 +1,350 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on J784S4/J742S2 SoCs
+ *
+ * Copyright (C) 2022-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1000000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_memory_region: r5f-memory@a2100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_memory_region: r5f-memory@a3100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss1_core0_memory_region: r5f-memory@a4100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa5000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa5100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss2_core0_dma_memory_region: r5f-dma-memory@a6000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa6000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss2_core0_memory_region: r5f-memory@a6100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa6100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss2_core1_dma_memory_region: r5f-dma-memory@a7000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa7000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss2_core1_memory_region: r5f-memory@a7100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa7100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	c71_0_dma_memory_region: c71-dma-memory@a8000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa8000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c71_0_memory_region: c71-memory@a8100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa8100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	c71_1_dma_memory_region: c71-dma-memory@a9000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa9000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c71_1_memory_region: c71-memory@a9100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa9100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	c71_2_dma_memory_region: c71-dma-memory@aa000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xaa000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c71_2_memory_region: c71-memory@aa100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xaa100000 0x00 0xf00000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+	interrupts = <436>;
+
+	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+	interrupts = <432>;
+
+	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster2 {
+	status = "okay";
+	interrupts = <428>;
+
+	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster3 {
+	status = "okay";
+	interrupts = <424>;
+
+	mbox_main_r5fss2_core0: mbox-main-r5fss2-core0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_main_r5fss2_core1: mbox-main-r5fss2-core1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster4 {
+	status = "okay";
+	interrupts = <420>;
+
+	mbox_c71_0: mbox-c71-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_c71_1: mbox-c71-1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mailbox0_cluster5 {
+	status = "okay";
+	interrupts = <416>;
+
+	mbox_c71_2: mbox-c71-2 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+/* Timers are used by Remoteproc firmware */
+&main_timer0 {
+	status = "reserved";
+};
+
+&main_timer1 {
+	status = "reserved";
+};
+
+&main_timer2 {
+	status = "reserved";
+};
+
+&main_timer3 {
+	status = "reserved";
+};
+
+&main_timer4 {
+	status = "reserved";
+};
+
+&main_timer5 {
+	status = "reserved";
+};
+
+&main_timer6 {
+	status = "reserved";
+};
+
+&main_timer7 {
+	status = "reserved";
+};
+
+&main_timer8 {
+	status = "reserved";
+};
+
+&main_timer9 {
+	status = "reserved";
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+};
+
+&mcu_r5fss0_core1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
+	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
+			<&mcu_r5fss0_core1_memory_region>;
+};
+
+&main_r5fss0 {
+	ti,cluster-mode = <0>;
+	status = "okay";
+};
+
+&main_r5fss0_core0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
+	memory-region = <&main_r5fss0_core0_dma_memory_region>,
+			<&main_r5fss0_core0_memory_region>;
+};
+
+&main_r5fss0_core1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
+	memory-region = <&main_r5fss0_core1_dma_memory_region>,
+			<&main_r5fss0_core1_memory_region>;
+};
+
+&main_r5fss1 {
+	ti,cluster-mode = <0>;
+	status = "okay";
+};
+
+&main_r5fss1_core0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>;
+	memory-region = <&main_r5fss1_core0_dma_memory_region>,
+			<&main_r5fss1_core0_memory_region>;
+};
+
+&main_r5fss1_core1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>;
+	memory-region = <&main_r5fss1_core1_dma_memory_region>,
+			<&main_r5fss1_core1_memory_region>;
+};
+
+&main_r5fss2 {
+	ti,cluster-mode = <0>;
+	status = "okay";
+};
+
+&main_r5fss2_core0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster3 &mbox_main_r5fss2_core0>;
+	memory-region = <&main_r5fss2_core0_dma_memory_region>,
+			<&main_r5fss2_core0_memory_region>;
+};
+
+&main_r5fss2_core1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster3 &mbox_main_r5fss2_core1>;
+	memory-region = <&main_r5fss2_core1_dma_memory_region>,
+			<&main_r5fss2_core1_memory_region>;
+};
+
+&c71_0 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
+	memory-region = <&c71_0_dma_memory_region>,
+			<&c71_0_memory_region>;
+};
+
+&c71_1 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster4 &mbox_c71_1>;
+	memory-region = <&c71_1_dma_memory_region>,
+			<&c71_1_memory_region>;
+};
+
+&c71_2 {
+	status = "okay";
+	mboxes = <&mailbox0_cluster5 &mbox_c71_2>;
+	memory-region = <&c71_2_dma_memory_region>,
+			<&c71_2_memory_region>;
+};
-- 
2.34.1

[PATCH v2 27/33] arm64: dts: ti: k3-j784s4-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 J784S4 SoCs have multiple programmable remote processors like
R5F, C7x etc. The TI SDKs for J784S4 SoCs offer sample firmwares which
could be run on these cores to demonstrate an "echo" IPC test. Those
firmware require certain memory carveouts to be reserved from system
memory, timers to be reserved, and certain mailbox configurations for
interrupt based messaging. These configurations could be different for a
different firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

This patch only refactors the C71_3 remote processor related nodes into
the new dtsi. All other nodes have been refactored in the previous
commit as part of k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 12/33] to [PATCH v2 27/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-13-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-am69-sk.dts         | 27 +-------------
 arch/arm64/boot/dts/ti/k3-j784s4-evm.dts      | 26 +-------------
 .../dts/ti/k3-j784s4-ti-ipc-firmware.dtsi     | 35 +++++++++++++++++++
 3 files changed, 37 insertions(+), 51 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j784s4-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index 5e187e86a5d9..9a12b639209b 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -60,18 +60,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		c71_3_dma_memory_region: c71-dma-memory@ab000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xab000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_3_memory_region: c71-memory@ab100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xab100000 0x00 0xf00000>;
-			no-map;
-		};
 	};
 
 	vusb_main: regulator-vusb-main5v0 {
@@ -520,13 +508,6 @@ &phy_gmii_sel {
 	bootph-all;
 };
 
-&mailbox0_cluster5 {
-	mbox_c71_3: mbox-c71-3 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
 &wkup_uart0 {
 	/* Firmware usage */
 	status = "reserved";
@@ -795,13 +776,6 @@ &mcu_cpsw_port1 {
 	bootph-all;
 };
 
-&c71_3 {
-	status = "okay";
-	mboxes = <&mailbox0_cluster5 &mbox_c71_3>;
-	memory-region = <&c71_3_dma_memory_region>,
-			<&c71_3_memory_region>;
-};
-
 &wkup_gpio_intr {
 	status = "okay";
 };
@@ -1078,3 +1052,4 @@ &usb0 {
 };
 
 #include "k3-j784s4-j742s2-ti-ipc-firmware-common.dtsi"
+#include "k3-j784s4-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
index a84bde08f85e..6c7458c76f53 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
@@ -27,31 +27,7 @@ memory@80000000 {
 	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
-
-		c71_3_dma_memory_region: c71-dma-memory@ab000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xab000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c71_3_memory_region: c71-memory@ab100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xab100000 0x00 0xf00000>;
-			no-map;
-		};
-	};
-};
-
-&mailbox0_cluster5 {
-	mbox_c71_3: mbox-c71-3 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
 	};
 };
 
-&c71_3 {
-	mboxes = <&mailbox0_cluster5 &mbox_c71_3>;
-	memory-region = <&c71_3_dma_memory_region>,
-			<&c71_3_memory_region>;
-	status = "okay";
-};
+#include "k3-j784s4-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..23020c0bbb28
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-ti-ipc-firmware.dtsi
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on J784S4 SoCs
+ *
+ * Copyright (C) 2022-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	c71_3_dma_memory_region: c71-dma-memory@ab000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xab000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c71_3_memory_region: c71-memory@ab100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xab100000 0x00 0xf00000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster5 {
+
+	mbox_c71_3: mbox-c71-3 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&c71_3 {
+	mboxes = <&mailbox0_cluster5 &mbox_c71_3>;
+	memory-region = <&c71_3_dma_memory_region>,
+			<&c71_3_memory_region>;
+	status = "okay";
+};
-- 
2.34.1

[PATCH v2 28/33] arm64: dts: ti: k3-j722s-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 J722S SoCs have multiple programmable remote processors like
R5F, C7x etc. The TI SDKs for J722S SoCs offer sample firmwares which
could be run on these cores to demonstrate an "echo" IPC test. Those
firmware require certain memory carveouts to be reserved from system
memory, timers to be reserved, and certain mailbox configurations for
interrupt based messaging. These configurations could be different for a
different firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 14/33] to [PATCH v2 28/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-15-b-padhi@ti.com/

 .../arm64/boot/dts/ti/k3-am67a-beagley-ai.dts | 155 +----------------
 arch/arm64/boot/dts/ti/k3-j722s-evm.dts       | 157 +----------------
 .../boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi | 163 ++++++++++++++++++
 3 files changed, 166 insertions(+), 309 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts b/arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts
index b329e4cb0c37..e1eaeb0015a2 100644
--- a/arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts
+++ b/arch/arm64/boot/dts/ti/k3-am67a-beagley-ai.dts
@@ -61,60 +61,6 @@ wkup_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: main-r5fss-dma-memory-region@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: main-r5fss-memory-region@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c7x_0_dma_memory_region: c7x-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c7x_0_memory_region: c7x-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c7x_1_dma_memory_region: c7x-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c7x_1_memory_region: c7x-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a5000000 {
-			reg = <0x00 0xa5000000 0x00 0x1c00000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	vsys_5v0: regulator-1 {
@@ -453,103 +399,4 @@ &sdhci1 {
 	status = "okay";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_wkup_r5_0: mbox-wkup-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-
-	mbox_mcu_r5_0: mbox-mcu-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_c7x_0: mbox-c7x-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster3 {
-	status = "okay";
-
-	mbox_main_r5_0: mbox-main-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c7x_1: mbox-c7x-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_wkup_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0 {
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster3 &mbox_main_r5_0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&c7x_0 {
-	mboxes = <&mailbox0_cluster2 &mbox_c7x_0>;
-	memory-region = <&c7x_0_dma_memory_region>,
-			<&c7x_0_memory_region>;
-	status = "okay";
-};
-
-&c7x_1 {
-	mboxes = <&mailbox0_cluster3 &mbox_c7x_1>;
-	memory-region = <&c7x_1_dma_memory_region>,
-			<&c7x_1_memory_region>;
-	status = "okay";
-};
+#include "k3-j722s-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index 2b9e007432a9..7ff738b40706 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -63,60 +63,6 @@ wkup_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_dma_memory_region: main-r5fss-dma-memory-region@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core0_memory_region: main-r5fss-memory-region@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c7x_0_dma_memory_region: c7x-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c7x_0_memory_region: c7x-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		c7x_1_dma_memory_region: c7x-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		c7x_1_memory_region: c7x-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a5000000 {
-			reg = <0x00 0xa5000000 0x00 0x1c00000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	vmain_pd: regulator-0 {
@@ -788,107 +734,6 @@ &sdhci1 {
 	bootph-all;
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_wkup_r5_0: mbox-wkup-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-
-	mbox_mcu_r5_0: mbox-mcu-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_c7x_0: mbox-c7x-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster3 {
-	status = "okay";
-
-	mbox_main_r5_0: mbox-main-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_c7x_1: mbox-c7x-1 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-/* Timers are used by Remoteproc firmware */
-&main_timer0 {
-	status = "reserved";
-};
-
-&main_timer1 {
-	status = "reserved";
-};
-
-&main_timer2 {
-	status = "reserved";
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_wkup_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0 {
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster3 &mbox_main_r5_0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&c7x_0 {
-	mboxes = <&mailbox0_cluster2 &mbox_c7x_0>;
-	memory-region = <&c7x_0_dma_memory_region>,
-			<&c7x_0_memory_region>;
-	status = "okay";
-};
-
-&c7x_1 {
-	mboxes = <&mailbox0_cluster3 &mbox_c7x_1>;
-	memory-region = <&c7x_1_dma_memory_region>,
-			<&c7x_1_memory_region>;
-	status = "okay";
-};
-
 &serdes_ln_ctrl {
 	idle-states = <J722S_SERDES0_LANE0_USB>,
 		      <J722S_SERDES1_LANE0_PCIE0_LANE0>;
@@ -999,3 +844,5 @@ &mcu_i2c0 {
 	clock-frequency = <400000>;
 	status = "okay";
 };
+
+#include "k3-j722s-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..442d78cf450a
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on J722S SoCs
+ *
+ * Copyright (C) 2024-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@a1000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1000000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@a1100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_dma_memory_region: main-r5fss-dma-memory-region@a2000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core0_memory_region: main-r5fss-memory-region@a2100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	c7x_0_dma_memory_region: c7x-dma-memory@a3000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c7x_0_memory_region: c7x-memory@a3100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	c7x_1_dma_memory_region: c7x-dma-memory@a4000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4000000 0x00 0x100000>;
+		no-map;
+	};
+
+	c7x_1_memory_region: c7x-memory@a4100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	rtos_ipc_memory_region: ipc-memories@a5000000 {
+		reg = <0x00 0xa5000000 0x00 0x1c00000>;
+		alignment = <0x1000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+
+	mbox_wkup_r5_0: mbox-wkup-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+
+	mbox_mcu_r5_0: mbox-mcu-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster2 {
+	status = "okay";
+
+	mbox_c7x_0: mbox-c7x-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster3 {
+	status = "okay";
+
+	mbox_main_r5_0: mbox-main-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_c7x_1: mbox-c7x-1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+/* Timers are used by Remoteproc firmware */
+&main_timer0 {
+	status = "reserved";
+};
+
+&main_timer1 {
+	status = "reserved";
+};
+
+&main_timer2 {
+	status = "reserved";
+};
+
+&wkup_r5fss0 {
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_wkup_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss0 {
+	status = "okay";
+};
+
+&main_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster3 &mbox_main_r5_0>;
+	memory-region = <&main_r5fss0_core0_dma_memory_region>,
+			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&c7x_0 {
+	mboxes = <&mailbox0_cluster2 &mbox_c7x_0>;
+	memory-region = <&c7x_0_dma_memory_region>,
+			<&c7x_0_memory_region>;
+	status = "okay";
+};
+
+&c7x_1 {
+	mboxes = <&mailbox0_cluster3 &mbox_c7x_1>;
+	memory-region = <&c7x_1_dma_memory_region>,
+			<&c7x_1_memory_region>;
+	status = "okay";
+};
-- 
2.34.1

[PATCH v2 29/33] arm64: dts: ti: k3-am62p-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 AM62P SoCs have multiple programmable remote processors like
R5Fs. The TI SDKs for AM62P SoCs offer sample firmwares which could be
run on these cores to demonstrate an "echo" IPC test. Those firmware
require certain memory carveouts to be reserved from system memory,
timers to be reserved, and certain mailbox configurations for interrupt
based messaging. These configurations could be different for a different
firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 17/33] to [PATCH v2 29/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-18-b-padhi@ti.com/

 .../boot/dts/ti/k3-am62p-ti-ipc-firmware.dtsi | 60 +++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi   | 42 +------------
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts       | 54 +----------------
 3 files changed, 64 insertions(+), 92 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..5c0c42648cb5
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p-ti-ipc-firmware.dtsi
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on AM62P SoCs
+ *
+ * Copyright (C) 2023-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@9b800000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0x9b800000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@9b900000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0x9b900000 0x00 0xf00000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+
+	mbox_r5_0: mbox-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+
+	mbox_mcu_r5_0: mbox-mcu-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&wkup_r5fss0 {
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
index 0687debf3bbb..e2ab98e65fd5 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
@@ -848,46 +848,6 @@ &epwm2 {
 	status = "disabled";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-
-	mbox_mcu_r5_0: mbox-mcu-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
 &main0_alert {
 	temperature = <95000>;
 };
@@ -1466,3 +1426,5 @@ &wkup_uart0 {
 	uart-has-rtscts;
 	status = "disabled";
 };
+
+#include "k3-am62p-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index c5b5b00c42b9..42886ecf1521 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -49,18 +49,6 @@ reserved_memory: reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
-		mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@9b800000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9b800000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@9b900000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9b900000 0x00 0xf00000>;
-			no-map;
-		};
-
 		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9c800000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9c800000 0x00 0x100000>;
@@ -699,46 +687,6 @@ partition@3fc0000 {
 	};
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-
-	mbox_mcu_r5_0: mbox-mcu-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
 &main_uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_uart0_pins_default>;
@@ -810,3 +758,5 @@ &epwm1 {
 	pinctrl-0 = <&main_epwm1_pins_default>;
 	status = "okay";
 };
+
+#include "k3-am62p-ti-ipc-firmware.dtsi"
-- 
2.34.1

[PATCH v2 30/33] arm64: dts: ti: k3-am62-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 AM62 SoCs have multiple programmable remote processors like
R5F, M4F etc. The TI SDKs for AM62 SoCs offer sample firmwares which
could be run on these cores to demonstrate an "echo" IPC test. Those
firmware require certain memory carveouts to be reserved from system
memory, timers to be reserved, and certain mailbox configurations for
interrupt based messaging. These configurations could be different for a
different firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 22/33] to [PATCH v2 30/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-23-b-padhi@ti.com/

 .../boot/dts/ti/k3-am62-phycore-som.dtsi      | 44 +---------------
 .../boot/dts/ti/k3-am62-pocketbeagle2.dts     | 46 +---------------
 .../boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi  | 52 +++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi    | 34 +-----------
 .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 46 +---------------
 5 files changed, 59 insertions(+), 163 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
index dcd22ff487ec..34b2e8d6bf80 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
@@ -52,18 +52,6 @@ rtos_ipc_memory_region: ipc-memories@9c800000 {
 			no-map;
 		};
 
-		mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9cb00000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_m4fss_memory_region: m4f-memory@9cc00000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9cc00000 0x00 0xe00000>;
-			no-map;
-		};
-
 		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9da00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9da00000 0x00 0x100000>;
@@ -245,20 +233,6 @@ cpsw3g_phy1: ethernet-phy@1 {
 	};
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
 &main_pktdma {
 	bootph-all;
 };
@@ -364,13 +338,6 @@ i2c_som_rtc: rtc@52 {
 	};
 };
 
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
 &ospi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ospi0_pins_default>;
@@ -399,13 +366,4 @@ &sdhci0 {
 	status = "okay";
 };
 
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
+#include "k3-am62-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
index 729901b2ca10..e634abe9e8e6 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
@@ -54,18 +54,6 @@ linux,cma {
 			linux,cma-default;
 		};
 
-		mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9cb00000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_m4fss_memory_region: m4f-memory@9cc00000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9cc00000 0x00 0xe00000>;
-			no-map;
-		};
-
 		secure_tfa_ddr: tfa@9e780000 {
 			reg = <0x00 0x9e780000 0x00 0x80000>;
 			alignment = <0x1000>;
@@ -298,20 +286,6 @@ &epwm2 {
 	pinctrl-0 = <&epwm2_pins_default>;
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
 &main_uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_uart0_pins_default>;
@@ -362,24 +336,6 @@ &main_i2c2 {
 	status = "okay";
 };
 
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
 &mcu_pmx0 {
 	wkup_uart0_pins_default: wkup-uart0-default-pins {
 		pinctrl-single,pins = <
@@ -543,3 +499,5 @@ ldo4_reg: ldo4 {
 		};
 	};
 };
+
+#include "k3-am62-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..9376ae91a17f
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on AM62 SoCs
+ *
+ * Copyright (C) 2021-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0x9cb00000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_m4fss_memory_region: m4f-memory@9cc00000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0x9cc00000 0x00 0xe00000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+
+	mbox_m4_0: mbox-m4-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_r5_0: mbox-r5-0 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
+
+&mcu_m4fss {
+	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
+	memory-region = <&mcu_m4fss_dma_memory_region>,
+			<&mcu_m4fss_memory_region>;
+	status = "okay";
+};
+
+&wkup_r5fss0 {
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
index fa2c1dc738d6..fd83dbc9f37b 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
@@ -1334,38 +1334,6 @@ &main_i2c3 {
 	status = "disabled";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
 /* Verdin CAN_1 */
 &main_mcan0 {
 	pinctrl-names = "default";
@@ -1549,3 +1517,5 @@ &wkup_uart0 {
 	pinctrl-0 = <&pinctrl_wkup_uart0>;
 	status = "disabled";
 };
+
+#include "k3-am62-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 03b8e246d8c2..ec2685144558 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -58,18 +58,6 @@ linux,cma {
 			linux,cma-default;
 		};
 
-		mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9cb00000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_m4fss_memory_region: m4f-memory@9cc00000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9cc00000 0x00 0xe00000>;
-			no-map;
-		};
-
 		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9da00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9da00000 0x00 0x100000>;
@@ -477,38 +465,6 @@ cpsw3g_phy0: ethernet-phy@0 {
 	};
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <2 0 0>;
-		ti,mbox-tx = <3 0 0>;
-	};
-};
-
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
 &usbss0 {
 	bootph-all;
 	status = "okay";
@@ -601,3 +557,5 @@ &epwm1 {
 	pinctrl-0 = <&main_epwm1_pins_default>;
 	status = "okay";
 };
+
+#include "k3-am62-ti-ipc-firmware.dtsi"
-- 
2.34.1

[PATCH v2 31/33] arm64: dts: ti: k3-am62a-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 AM62A SoCs have multiple programmable remote processors like
R5F, C7x etc. The TI SDKs for AM62A SoCs offer sample firmwares which
could be run on these cores to demonstrate an "echo" IPC test. Those
firmware require certain memory carveouts to be reserved from system
memory, timers to be reserved, and certain mailbox configurations for
interrupt based messaging. These configurations could be different for a
different firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 25/33] to [PATCH v2 31/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-26-b-padhi@ti.com/

 .../boot/dts/ti/k3-am62a-phycore-som.dtsi     | 90 +----------------
 .../boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi | 98 +++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts       | 92 +----------------
 arch/arm64/boot/dts/ti/k3-am62d2-evm.dts      | 76 +-------------
 4 files changed, 102 insertions(+), 254 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
index 3108e9b0c804..44c73ed637da 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi
@@ -59,30 +59,6 @@ linux,cma {
 			linux,cma-default;
 		};
 
-		c7x_0_dma_memory_region: c7x-dma-memory@99800000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x99800000 0x00 0x100000>;
-			no-map;
-		};
-
-		c7x_0_memory_region: c7x-memory@99900000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x99900000 0x00 0xf00000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory@9b800000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9b800000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_memory_region: r5f-dma-memory@9b900000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9b900000 0x00 0xf00000>;
-			no-map;
-		};
-
 		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9c800000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9c800000 0x00 0x100000>;
@@ -209,13 +185,6 @@ opp-1400000000 {
 	};
 };
 
-&c7x_0 {
-	mboxes = <&mailbox0_cluster1 &mbox_c7x_0>;
-	memory-region = <&c7x_0_dma_memory_region>,
-			<&c7x_0_memory_region>;
-	status = "okay";
-};
-
 &cpsw3g {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_rgmii1_pins_default>;
@@ -246,33 +215,6 @@ &fss {
 	status = "okay";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-
-	mbox_c7x_0: mbox-c7x-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_mcu_r5_0: mbox-mcu-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
 &main_i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c0_pins_default>;
@@ -388,27 +330,6 @@ &main_pktdma {
 	bootph-all;
 };
 
-/* main_rti4 is used by C7x DSP */
-&main_rti4 {
-	status = "reserved";
-};
-
-/* main_timer2 is used by C7x DSP */
-&main_timer2 {
-	status = "reserved";
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_mcu_r5_0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
 &ospi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ospi0_pins_default>;
@@ -437,13 +358,4 @@ &sdhci0 {
 	status = "okay";
 };
 
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0  &mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
+#include "k3-am62a-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..91583cd23b12
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on AM62A SoCs
+ *
+ * Copyright (C) 2022-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	c7x_0_dma_memory_region: c7x-dma-memory@99800000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0x99800000 0x00 0x100000>;
+		no-map;
+	};
+
+	c7x_0_memory_region: c7x-memory@99900000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0x99900000 0x00 0xf00000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory@9b800000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0x9b800000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core0_memory_region: r5f-dma-memory@9b900000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0x9b900000 0x00 0xf00000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+
+	mbox_r5_0: mbox-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+
+	mbox_c7x_0: mbox-c7x-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster2 {
+	status = "okay";
+
+	mbox_mcu_r5_0: mbox-mcu-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&wkup_r5fss0 {
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0>, <&mbox_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster2>, <&mbox_mcu_r5_0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&c7x_0 {
+	mboxes = <&mailbox0_cluster1>, <&mbox_c7x_0>;
+	memory-region = <&c7x_0_dma_memory_region>,
+			<&c7x_0_memory_region>;
+	status = "okay";
+};
+
+/* main_rti4 is used by C7x DSP */
+&main_rti4 {
+	status = "reserved";
+};
+
+/* main_timer2 is used by C7x DSP */
+&main_timer2 {
+	status = "reserved";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 7ebcfe8edfe1..ede03f449d65 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -53,30 +53,6 @@ linux,cma {
 			linux,cma-default;
 		};
 
-		c7x_0_dma_memory_region: c7x-dma-memory@99800000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x99800000 0x00 0x100000>;
-			no-map;
-		};
-
-		c7x_0_memory_region: c7x-memory@99900000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x99900000 0x00 0xf00000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory@9b800000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9b800000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_memory_region: r5f-dma-memory@9b900000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9b900000 0x00 0xf00000>;
-			no-map;
-		};
-
 		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9c800000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9c800000 0x00 0x100000>;
@@ -713,11 +689,6 @@ &main_uart1 {
 	status = "reserved";
 };
 
-/* main_timer2 is used by C7x DSP */
-&main_timer2 {
-	status = "reserved";
-};
-
 &usbss0 {
 	status = "okay";
 	ti,vbus-divider;
@@ -835,67 +806,6 @@ &epwm1 {
 	status = "okay";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-
-	mbox_c7x_0: mbox-c7x-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_mcu_r5_0: mbox-mcu-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
-&wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0>, <&mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster2>, <&mbox_mcu_r5_0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&c7x_0 {
-	mboxes = <&mailbox0_cluster1>, <&mbox_c7x_0>;
-	memory-region = <&c7x_0_dma_memory_region>,
-			<&c7x_0_memory_region>;
-	status = "okay";
-};
-
-/* main_rti4 is used by C7x DSP */
-&main_rti4 {
-	status = "reserved";
-};
-
 &fss {
 	status = "okay";
 };
@@ -937,3 +847,5 @@ AM62AX_IOPAD(0x008, PIN_INPUT, 0) /* (J24) OSPI0_DQS */
 		>;
 	};
 };
+
+#include "k3-am62a-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
index 41860ac42f3c..a57fc2362dfd 100644
--- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
@@ -58,30 +58,6 @@ secure_tfa_ddr: tfa@80000000 {
 			no-map;
 		};
 
-		c7x_0_dma_memory_region: c7x-dma-memory@99800000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x99800000 0x00 0x100000>;
-			no-map;
-		};
-
-		c7x_0_memory_region: c7x-memory@99900000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x99900000 0x00 0xf00000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory@9b800000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9b800000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core0_memory_region: r5f-dma-memory@9b900000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0x9b900000 0x00 0xf00000>;
-			no-map;
-		};
-
 		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9c800000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9c800000 0x00 0x100000>;
@@ -551,66 +527,16 @@ cpsw3g_phy1: ethernet-phy@3 {
 	};
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-
-	mbox_r5_0: mbox-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-
-	mbox_c7x_0: mbox-c7x-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_mcu_r5_0: mbox-mcu-r5-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
-&wkup_r5fss0 {
-	status = "okay";
-};
-
 &wkup_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
-	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
-			<&wkup_r5fss0_core0_memory_region>;
-	status = "okay";
 	bootph-pre-ram;
 };
 
-&mcu_r5fss0 {
-	status = "okay";
-};
-
 &mcu_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_mcu_r5_0>;
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
 	firmware-name = "am62d-mcu-r5f0_0-fw";
-	status = "okay";
 };
 
 &c7x_0 {
-	mboxes = <&mailbox0_cluster1 &mbox_c7x_0>;
-	memory-region = <&c7x_0_dma_memory_region>,
-			<&c7x_0_memory_region>;
 	firmware-name = "am62d-c71_0-fw";
-	status = "okay";
 };
 
-/* main_rti4 is used by C7x DSP */
-&main_rti4 {
-	status = "reserved";
-};
+#include "k3-am62a-ti-ipc-firmware.dtsi"
-- 
2.34.1

[PATCH v2 32/33] arm64: dts: ti: k3-am64-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 AM64 SoCs have multiple programmable remote processors like
R5F, M4F etc. The TI SDKs for AM64 SoCs offer sample firmwares which
could be run on these cores to demonstrate an "echo" IPC test. Those
firmware require certain memory carveouts to be reserved from system
memory, timers to be reserved, and certain mailbox configurations for
interrupt based messaging. These configurations could be different for a
different firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 30/33] to [PATCH v2 32/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-31-b-padhi@ti.com/

 .../boot/dts/ti/k3-am64-phycore-som.dtsi      | 160 +----------------
 .../boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi  | 162 ++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am642-evm.dts       | 156 +----------------
 arch/arm64/boot/dts/ti/k3-am642-sk.dts        | 156 +----------------
 arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi   | 156 +----------------
 .../arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi | 156 +----------------
 6 files changed, 172 insertions(+), 774 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
index 1efd547b2ba6..af0fed6124e2 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
@@ -52,60 +52,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_m4fss_memory_region: m4f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a5000000 {
-			reg = <0x00 0xa5000000 0x00 0x00800000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	leds {
@@ -238,67 +184,6 @@ &cpsw_port1 {
 	status = "okay";
 };
 
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster6 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-};
-
-/* main_timer8 is used by r5f0-0 */
-&main_timer8 {
-	status = "reserved";
-};
-
-/* main_timer9 is used by r5f0-1 */
-&main_timer9 {
-	status = "reserved";
-};
-
-/* main_timer10 is used by r5f1-0 */
-&main_timer10 {
-	status = "reserved";
-};
-
-/* main_timer11 is used by r5f1-1 */
-&main_timer11 {
-	status = "reserved";
-};
-
-&main_r5fss0 {
-	status = "okay";
-};
-
 &main_i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c0_pins_default>;
@@ -373,49 +258,6 @@ &main_pktdma {
 	bootph-all;
 };
 
-&main_r5fss0 {
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
 &ospi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ospi0_pins_default>;
@@ -451,3 +293,5 @@ adc {
 		ti,adc-channels = <0 1 2 3 4 5 6 7>;
 	};
 };
+
+#include "k3-am64-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..847495f76831
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on AM64 SoCs
+ *
+ * Copyright (C) 2024-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa1100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa2100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3000000 0x00 0x100000>;
+		no-map;
+	};
+
+	main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa3100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4000000 0x00 0x100000>;
+		no-map;
+	};
+
+	mcu_m4fss_memory_region: m4f-memory@a4100000 {
+		compatible = "shared-dma-pool";
+		reg = <0x00 0xa4100000 0x00 0xf00000>;
+		no-map;
+	};
+
+	rtos_ipc_memory_region: ipc-memories@a5000000 {
+		reg = <0x00 0xa5000000 0x00 0x00800000>;
+		alignment = <0x1000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster2 {
+	status = "okay";
+
+	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+
+	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
+		ti,mbox-rx = <2 0 2>;
+		ti,mbox-tx = <3 0 2>;
+	};
+};
+
+&mailbox0_cluster4 {
+	status = "okay";
+
+	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+
+	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
+		ti,mbox-rx = <2 0 2>;
+		ti,mbox-tx = <3 0 2>;
+	};
+};
+
+&mailbox0_cluster6 {
+	status = "okay";
+
+	mbox_m4_0: mbox-m4-0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+};
+
+/* main_timer8 is used by r5f0-0 */
+&main_timer8 {
+	status = "reserved";
+};
+
+/* main_timer9 is used by r5f0-1 */
+&main_timer9 {
+	status = "reserved";
+};
+
+/* main_timer10 is used by r5f1-0 */
+&main_timer10 {
+	status = "reserved";
+};
+
+/* main_timer11 is used by r5f1-1 */
+&main_timer11 {
+	status = "reserved";
+};
+
+&main_r5fss0 {
+	status = "okay";
+};
+
+&main_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
+	memory-region = <&main_r5fss0_core0_dma_memory_region>,
+			<&main_r5fss0_core0_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss0_core1 {
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
+	memory-region = <&main_r5fss0_core1_dma_memory_region>,
+			<&main_r5fss0_core1_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1 {
+	status = "okay";
+};
+
+&main_r5fss1_core0 {
+	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
+	memory-region = <&main_r5fss1_core0_dma_memory_region>,
+			<&main_r5fss1_core0_memory_region>;
+	status = "okay";
+};
+
+&main_r5fss1_core1 {
+	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
+	memory-region = <&main_r5fss1_core1_dma_memory_region>,
+			<&main_r5fss1_core1_memory_region>;
+	status = "okay";
+};
+
+&mcu_m4fss {
+	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
+	memory-region = <&mcu_m4fss_dma_memory_region>,
+			<&mcu_m4fss_memory_region>;
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 7640c5efe9b8..05b7cdd25a8c 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -64,60 +64,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_m4fss_memory_region: m4f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a5000000 {
-			reg = <0x00 0xa5000000 0x00 0x00800000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	evm_12v0: regulator-0 {
@@ -727,106 +673,6 @@ partition@3fc0000 {
 	};
 };
 
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster6 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-};
-
-&main_r5fss0 {
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
-/* main_timer8 is used by r5f0-0 */
-&main_timer8 {
-	status = "reserved";
-};
-
-/* main_timer9 is used by r5f0-1 */
-&main_timer9 {
-	status = "reserved";
-};
-
-/* main_timer10 is used by r5f1-0 */
-&main_timer10 {
-	status = "reserved";
-};
-
-/* main_timer11 is used by r5f1-1 */
-&main_timer11 {
-	status = "reserved";
-};
-
 &serdes_ln_ctrl {
 	idle-states = <AM64_SERDES0_LANE0_PCIE0>;
 };
@@ -890,3 +736,5 @@ &icssg1_iep0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&icssg1_iep0_pins_default>;
 };
+
+#include "k3-am64-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index fb8bd66f2f94..cc1569a6519b 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -62,60 +62,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_m4fss_memory_region: m4f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a5000000 {
-			reg = <0x00 0xa5000000 0x00 0x00800000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	vusb_main: regulator-0 {
@@ -642,106 +588,6 @@ partition@3fc0000 {
 	};
 };
 
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster6 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-};
-
-&main_r5fss0 {
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
-/* main_timer8 is used by r5f0-0 */
-&main_timer8 {
-	status = "reserved";
-};
-
-/* main_timer9 is used by r5f0-1 */
-&main_timer9 {
-	status = "reserved";
-};
-
-/* main_timer10 is used by r5f1-0 */
-&main_timer10 {
-	status = "reserved";
-};
-
-/* main_timer11 is used by r5f1-1 */
-&main_timer11 {
-	status = "reserved";
-};
-
 &ecap0 {
 	status = "okay";
 	/* PWM is available on Pin 1 of header J3 */
@@ -755,3 +601,5 @@ &eqep0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_eqep0_pins_default>;
 };
+
+#include "k3-am64-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
index 8cb61f831734..ce23362b88c3 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
@@ -126,60 +126,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_m4fss_memory_region: m4f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a5000000 {
-			reg = <0x00 0xa5000000 0x00 0x00800000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	vdd_mmc0: regulator-vdd-mmc0 {
@@ -281,63 +227,6 @@ ethernet_phy2: ethernet-phy@f {
 	};
 };
 
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster6 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-};
-
-/* main_timer8 is used by r5f0-0 */
-&main_timer8 {
-	status = "reserved";
-};
-
-/* main_timer9 is used by r5f0-1 */
-&main_timer9 {
-	status = "reserved";
-};
-
-/* main_timer10 is used by r5f1-0 */
-&main_timer10 {
-	status = "reserved";
-};
-
-/* main_timer11 is used by r5f1-1 */
-&main_timer11 {
-	status = "reserved";
-};
-
 &main_i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c0_default_pins>;
@@ -535,49 +424,6 @@ AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* USB0_DRVVBUS.USB0_DRVVBUS */
 	};
 };
 
-&main_r5fss0 {
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
 /* SoC default UART console */
 &main_uart0 {
 	pinctrl-names = "default";
@@ -656,3 +502,5 @@ &usbss0 {
 	ti,vbus-divider;
 	ti,usb2-only;
 };
+
+#include "k3-am64-ti-ipc-firmware.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
index 860b79aa5ef5..e752fc8b0a88 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
@@ -42,60 +42,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
-
-		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa1100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa2100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3000000 0x00 0x100000>;
-			no-map;
-		};
-
-		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa3100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4000000 0x00 0x100000>;
-			no-map;
-		};
-
-		mcu_m4fss_memory_region: m4f-memory@a4100000 {
-			compatible = "shared-dma-pool";
-			reg = <0x00 0xa4100000 0x00 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a5000000 {
-			reg = <0x00 0xa5000000 0x00 0x00800000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	reg_1v8: regulator-1v8 {
@@ -142,106 +88,6 @@ eeprom1: eeprom@54 {
 	};
 };
 
-&mailbox0_cluster2 {
-	status = "okay";
-
-	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster4 {
-	status = "okay";
-
-	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-
-	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
-		ti,mbox-rx = <2 0 2>;
-		ti,mbox-tx = <3 0 2>;
-	};
-};
-
-&mailbox0_cluster6 {
-	status = "okay";
-
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 2>;
-		ti,mbox-tx = <1 0 2>;
-	};
-};
-
-/* main_timer8 is used by r5f0-0 */
-&main_timer8 {
-	status = "reserved";
-};
-
-/* main_timer9 is used by r5f0-1 */
-&main_timer9 {
-	status = "reserved";
-};
-
-/* main_timer10 is used by r5f1-0 */
-&main_timer10 {
-	status = "reserved";
-};
-
-/* main_timer11 is used by r5f1-1 */
-&main_timer11 {
-	status = "reserved";
-};
-
-&main_r5fss0 {
-	status = "okay";
-};
-
-&main_r5fss0_core0 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
-	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss0_core1 {
-	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
-	memory-region = <&main_r5fss0_core1_dma_memory_region>,
-			<&main_r5fss0_core1_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1 {
-	status = "okay";
-};
-
-&main_r5fss1_core0 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
-	memory-region = <&main_r5fss1_core0_dma_memory_region>,
-			<&main_r5fss1_core0_memory_region>;
-	status = "okay";
-};
-
-&main_r5fss1_core1 {
-	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
-	memory-region = <&main_r5fss1_core1_dma_memory_region>,
-			<&main_r5fss1_core1_memory_region>;
-	status = "okay";
-};
-
-&mcu_m4fss {
-	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
-	memory-region = <&mcu_m4fss_dma_memory_region>,
-			<&mcu_m4fss_memory_region>;
-	status = "okay";
-};
-
 &ospi0 {
 	status = "okay";
 	pinctrl-names = "default";
@@ -315,3 +161,5 @@ AM64X_IOPAD(0x0008, PIN_INPUT, 0)
 		>;
 	};
 };
+
+#include "k3-am64-ti-ipc-firmware.dtsi"
-- 
2.34.1

[PATCH v2 33/33] arm64: dts: ti: k3-am65-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Beleswar Padhi]

The TI K3 AM65 SoCs have multiple programmable remote processors like
R5Fs. The TI SDKs for AM65 SoCs offer sample firmwares which could be
run on these cores to demonstrate an "echo" IPC test. Those firmware
require certain memory carveouts to be reserved from system memory,
timers to be reserved, and certain mailbox configurations for interrupt
based messaging. These configurations could be different for a different
firmware.

While DT is not meant for system configurations, at least refactor these
configurations from board level DTS into a dtsi for now. This dtsi for
TI IPC firmware is board-independent and can be applied to all boards
from the same SoC Family. This gets rid of code duplication and allows
more freedom for users developing custom firmware (or no firmware) to
utilize system resources better; easily by swapping out this dtsi. To
maintain backward compatibility, the dtsi is included in all boards.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v2: Changelog:
1. Re-ordered patch from [PATCH 32/33] to [PATCH v2 33/33].

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-33-b-padhi@ti.com/

 .../boot/dts/ti/k3-am65-iot2050-common.dtsi   | 62 ++----------------
 .../boot/dts/ti/k3-am65-ti-ipc-firmware.dtsi  | 64 +++++++++++++++++++
 .../arm64/boot/dts/ti/k3-am654-base-board.dts | 58 +----------------
 3 files changed, 72 insertions(+), 112 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am65-ti-ipc-firmware.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index 6cd499ea53e7..19eb4a32e18d 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -59,24 +59,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			no-map;
 		};
 
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0 0xa1000000 0 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0 0xa1100000 0 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a2000000 {
-			reg = <0x00 0xa2000000 0x00 0x00200000>;
-			alignment = <0x1000>;
-			no-map;
-		};
-
 		/* To reserve the power-on(PON) reason for watchdog reset */
 		wdt_reset_memory_region: wdt-memory@a2200000 {
 			reg = <0x00 0xa2200000 0x00 0x1000>;
@@ -582,44 +564,6 @@ &pcie1_rc {
 	reset-gpios = <&wkup_gpio0 27 GPIO_ACTIVE_HIGH>;
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-tx = <1 0 0>;
-		ti,mbox-rx = <0 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-tx = <1 0 0>;
-		ti,mbox-rx = <0 0 0>;
-	};
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	status = "okay";
-};
-
-&mcu_r5fss0_core1 {
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5fss0_core1>;
-	status = "okay";
-};
-
 &mcu_rti1 {
 	memory-region = <&wdt_reset_memory_region>;
 };
@@ -692,3 +636,9 @@ &mcu_r5fss0 {
 	/* lock-step mode not supported on iot2050 boards */
 	ti,cluster-mode = <0>;
 };
+
+#include "k3-am65-ti-ipc-firmware.dtsi"
+
+&rtos_ipc_memory_region {
+	reg = <0x00 0xa2000000 0x00 0x00200000>;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am65-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am65-ti-ipc-firmware.dtsi
new file mode 100644
index 000000000000..514ec4c03056
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am65-ti-ipc-firmware.dtsi
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * Device Tree Source for enabling IPC using TI SDK firmware on AM65 SoCs
+ *
+ * Copyright (C) 2016-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+&reserved_memory {
+	mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
+		compatible = "shared-dma-pool";
+		reg = <0 0xa1000000 0 0x100000>;
+		no-map;
+	};
+
+	mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
+		compatible = "shared-dma-pool";
+		reg = <0 0xa1100000 0 0xf00000>;
+		no-map;
+	};
+
+	rtos_ipc_memory_region: ipc-memories@a2000000 {
+		reg = <0x00 0xa2000000 0x00 0x00100000>;
+		alignment = <0x1000>;
+		no-map;
+	};
+};
+
+&mailbox0_cluster0 {
+	status = "okay";
+	interrupts = <436>;
+
+	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
+		ti,mbox-tx = <1 0 0>;
+		ti,mbox-rx = <0 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+	interrupts = <432>;
+
+	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
+		ti,mbox-tx = <1 0 0>;
+		ti,mbox-rx = <0 0 0>;
+	};
+};
+
+&mcu_r5fss0 {
+	status = "okay";
+};
+
+&mcu_r5fss0_core0 {
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
+	status = "okay";
+};
+
+&mcu_r5fss0_core1 {
+	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
+			<&mcu_r5fss0_core1_memory_region>;
+	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5fss0_core1>;
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index e532ea0a22b2..adb7b8e6d52e 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -61,24 +61,6 @@ mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 {
 			reg = <0 0xa0100000 0 0xf00000>;
 			no-map;
 		};
-
-		mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
-			compatible = "shared-dma-pool";
-			reg = <0 0xa1000000 0 0x100000>;
-			no-map;
-		};
-
-		mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 {
-			compatible = "shared-dma-pool";
-			reg = <0 0xa1100000 0 0xf00000>;
-			no-map;
-		};
-
-		rtos_ipc_memory_region: ipc-memories@a2000000 {
-			reg = <0x00 0xa2000000 0x00 0x00100000>;
-			alignment = <0x1000>;
-			no-map;
-		};
 	};
 
 	gpio-keys {
@@ -521,44 +503,6 @@ &serdes1 {
 	status = "disabled";
 };
 
-&mailbox0_cluster0 {
-	status = "okay";
-	interrupts = <436>;
-
-	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
-		ti,mbox-tx = <1 0 0>;
-		ti,mbox-rx = <0 0 0>;
-	};
-};
-
-&mailbox0_cluster1 {
-	status = "okay";
-	interrupts = <432>;
-
-	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
-		ti,mbox-tx = <1 0 0>;
-		ti,mbox-rx = <0 0 0>;
-	};
-};
-
-&mcu_r5fss0 {
-	status = "okay";
-};
-
-&mcu_r5fss0_core0 {
-	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
-			<&mcu_r5fss0_core0_memory_region>;
-	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
-	status = "okay";
-};
-
-&mcu_r5fss0_core1 {
-	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
-			<&mcu_r5fss0_core1_memory_region>;
-	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5fss0_core1>;
-	status = "okay";
-};
-
 &ospi0 {
 	status = "okay";
 	pinctrl-names = "default";
@@ -653,3 +597,5 @@ &dss {
 &wkup_gpio0 {
 	bootph-all;
 };
+
+#include "k3-am65-ti-ipc-firmware.dtsi"
-- 
2.34.1

Re: [PATCH v2 01/33] arm64: dts: ti: k3-j7200: Enable remote processors at board level

[Andrew Davis]

On 8/23/25 11:08 AM, Beleswar Padhi wrote:
> Remote Processors defined in top-level J7200 SoC dtsi files are
> incomplete without the memory carveouts and mailbox assignments which
> are only known at board integration level.
> 
> Therefore, disable the remote processors at SoC level and enable them at
> board level where above information is available.
> 
> Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
> ---

Small comment on the $subject, these all seem to be specific to the R5F
cores, the other remote processors are already enabled at the board level.
Suggest: "Enable R5F remote processors at board level"

Otherwise this looks good to me, same for patches 2-12 in this series
so feel free to add my ACK to those 12 patches when you spin v3,

Acked-by: Andrew Davis <afd@ti.com>

> v2: Changelog:
> 1. None
> 
> Link to v1:
> https://lore.kernel.org/all/20250814223839.3256046-2-b-padhi@ti.com/
> 
>   arch/arm64/boot/dts/ti/k3-j7200-main.dtsi       | 3 +++
>   arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 3 +++
>   arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi     | 9 +++++++++
>   3 files changed, 15 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
> index 5ce5f0a3d6f5..628ff89dd72f 100644
> --- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
> @@ -1516,6 +1516,7 @@ main_r5fss0: r5fss@5c00000 {
>   		ranges = <0x5c00000 0x00 0x5c00000 0x20000>,
>   			 <0x5d00000 0x00 0x5d00000 0x20000>;
>   		power-domains = <&k3_pds 243 TI_SCI_PD_EXCLUSIVE>;
> +		status = "disabled";
>   
>   		main_r5fss0_core0: r5f@5c00000 {
>   			compatible = "ti,j7200-r5f";
> @@ -1530,6 +1531,7 @@ main_r5fss0_core0: r5f@5c00000 {
>   			ti,atcm-enable = <1>;
>   			ti,btcm-enable = <1>;
>   			ti,loczrama = <1>;
> +			status = "disabled";
>   		};
>   
>   		main_r5fss0_core1: r5f@5d00000 {
> @@ -1545,6 +1547,7 @@ main_r5fss0_core1: r5f@5d00000 {
>   			ti,atcm-enable = <1>;
>   			ti,btcm-enable = <1>;
>   			ti,loczrama = <1>;
> +			status = "disabled";
>   		};
>   	};
>   
> diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
> index 56ab144fea07..692c4745040e 100644
> --- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
> @@ -612,6 +612,7 @@ mcu_r5fss0: r5fss@41000000 {
>   		ranges = <0x41000000 0x00 0x41000000 0x20000>,
>   			 <0x41400000 0x00 0x41400000 0x20000>;
>   		power-domains = <&k3_pds 249 TI_SCI_PD_EXCLUSIVE>;
> +		status = "disabled";
>   
>   		mcu_r5fss0_core0: r5f@41000000 {
>   			compatible = "ti,j7200-r5f";
> @@ -626,6 +627,7 @@ mcu_r5fss0_core0: r5f@41000000 {
>   			ti,atcm-enable = <1>;
>   			ti,btcm-enable = <1>;
>   			ti,loczrama = <1>;
> +			status = "disabled";
>   		};
>   
>   		mcu_r5fss0_core1: r5f@41400000 {
> @@ -641,6 +643,7 @@ mcu_r5fss0_core1: r5f@41400000 {
>   			ti,atcm-enable = <1>;
>   			ti,btcm-enable = <1>;
>   			ti,loczrama = <1>;
> +			status = "disabled";
>   		};
>   	};
>   
> diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
> index 291ab9bb414d..90befcdc8d08 100644
> --- a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
> @@ -254,20 +254,27 @@ mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
>   	};
>   };
>   
> +&mcu_r5fss0 {
> +	status = "okay";
> +};
> +
>   &mcu_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
>   	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
>   			<&mcu_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &mcu_r5fss0_core1 {
>   	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>;
>   	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
>   			<&mcu_r5fss0_core1_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss0 {
>   	ti,cluster-mode = <0>;
> +	status = "okay";
>   };
>   
>   /* Timers are used by Remoteproc firmware */
> @@ -287,12 +294,14 @@ &main_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>;
>   	memory-region = <&main_r5fss0_core0_dma_memory_region>,
>   			<&main_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss0_core1 {
>   	mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>;
>   	memory-region = <&main_r5fss0_core1_dma_memory_region>,
>   			<&main_r5fss0_core1_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_i2c0 {

Re: [PATCH v2 18/33] arm64: dts: ti: k3-am64-phycore-som: Add missing cfg for TI IPC Firmware

[Wadim Egorov]

On 8/23/25 7:08 PM, Beleswar Padhi wrote:
> The k3-am64-phycore SoM enables all R5F and M4F remote processors.
> Reserve the MAIN domain timers that are used by R5F remote
> processors for ticks to avoid rproc crashes. This config aligns with
> other AM64 boards and can be refactored out later.
> 
> Signed-off-by: Beleswar Padhi <b-padhi@ti.com>

I am not sure you need this patch, because you are deleting everything 
you add in patch 32. But I tested the series on our hardware, so

Tested-by: Wadim Egorov <w.egorov@phytec.de>

> ---
> Cc: Wadim Egorov <w.egorov@phytec.de>
> Cc: Matt McKee <mmckee@phytec.com>
> Cc: Garrett Giordano <ggiordano@phytec.com>
> Cc: Nathan Morrisson <nmorrisson@phytec.com>
> Cc: John Ma <jma@phytec.com>
> Cc: Logan Bristol <logan.bristol@utexas.edu>
> Requesting for review/test of this patch.
> 
> v2: Changelog:
> 1. Re-ordered patch from [PATCH 28/33] to [PATCH v2 18/33].
> 
> Link to v1:
> https://lore.kernel.org/all/20250814223839.3256046-29-b-padhi@ti.com/
> 
>   .../boot/dts/ti/k3-am64-phycore-som.dtsi      | 24 +++++++++++++++++++
>   1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> index 03c46d74ebb5..1efd547b2ba6 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> @@ -275,6 +275,30 @@ mbox_m4_0: mbox-m4-0 {
>   	};
>   };
>   
> +/* main_timer8 is used by r5f0-0 */
> +&main_timer8 {
> +	status = "reserved";
> +};
> +
> +/* main_timer9 is used by r5f0-1 */
> +&main_timer9 {
> +	status = "reserved";
> +};
> +
> +/* main_timer10 is used by r5f1-0 */
> +&main_timer10 {
> +	status = "reserved";
> +};
> +
> +/* main_timer11 is used by r5f1-1 */
> +&main_timer11 {
> +	status = "reserved";
> +};
> +
> +&main_r5fss0 {
> +	status = "okay";
> +};
> +
>   &main_i2c0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&main_i2c0_pins_default>;

Re: [PATCH v2 06/33] arm64: dts: ti: k3-am62: Enable remote processors at board level

[Wadim Egorov]

On 8/23/25 7:08 PM, Beleswar Padhi wrote:
> Remote Processors defined in top-level AM62x SoC dtsi files are
> incomplete without the memory carveouts and mailbox assignments which
> are only known at board integration level.
> 
> Therefore, disable the remote processors at SoC level and enable them at
> board level where above information is available.
> 
> Signed-off-by: Beleswar Padhi <b-padhi@ti.com>

Reviewed-by: Wadim Egorov <w.egorov@phytec.de>
Tested-by: Wadim Egorov <w.egorov@phytec.de>


> ---
> v2: Changelog:
> 1. Re-ordered patch from [PATCH 21/33] to [PATCH v2 06/33].
> 
> Link to v1:
> https://lore.kernel.org/all/20250814223839.3256046-22-b-padhi@ti.com/
> 
>   arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi | 1 +
>   arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi      | 1 +
>   arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi  | 1 +
>   3 files changed, 3 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> index 10e6b5c08619..dcd22ff487ec 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> @@ -407,4 +407,5 @@ &wkup_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
>   	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
>   			<&wkup_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> index 6549b7efa656..75aed3a88284 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> @@ -128,6 +128,7 @@ wkup_r5fss0_core0: r5f@78000000 {
>   			ti,sci = <&dmsc>;
>   			ti,sci-dev-id = <121>;
>   			ti,sci-proc-ids = <0x01 0xff>;
> +			status = "disabled";
>   		};
>   	};
>   
> diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> index 13e1d36123d5..840772060cb1 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> @@ -506,6 +506,7 @@ &wkup_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
>   	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
>   			<&wkup_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &usbss0 {

Re: [PATCH v2 08/33] arm64: dts: ti: k3-am64: Enable remote processors at board level

[Wadim Egorov]

On 8/23/25 7:08 PM, Beleswar Padhi wrote:
> Remote Processors defined in top-level AM64x SoC dtsi files are
> incomplete without the memory carveouts and mailbox assignments which
> are only known at board integration level.
> 
> Therefore, disable the remote processors at SoC level and enable them at
> board level where above information is available.
> 
> Signed-off-by: Beleswar Padhi <b-padhi@ti.com>

Reviewed-by: Wadim Egorov <w.egorov@phytec.de>
Tested-by: Wadim Egorov <w.egorov@phytec.de> # phycore-am64x


> ---
> v2: Changelog:
> 1. Re-ordered patch from [PATCH 26/33] to [PATCH v2 08/33].
> 
> Link to v1:
> https://lore.kernel.org/all/20250814223839.3256046-27-b-padhi@ti.com/
> 
>   arch/arm64/boot/dts/ti/k3-am64-main.dtsi        |  6 ++++++
>   arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi | 12 ++++++++++++
>   arch/arm64/boot/dts/ti/k3-am642-evm.dts         | 12 ++++++++++++
>   arch/arm64/boot/dts/ti/k3-am642-sk.dts          | 12 ++++++++++++
>   arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi     | 12 ++++++++++++
>   arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi  | 12 ++++++++++++
>   6 files changed, 66 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> index c7e5da37486a..d872cc671094 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> @@ -921,6 +921,7 @@ main_r5fss0: r5fss@78000000 {
>   			 <0x78200000 0x00 0x78200000 0x08000>,
>   			 <0x78300000 0x00 0x78300000 0x08000>;
>   		power-domains = <&k3_pds 119 TI_SCI_PD_EXCLUSIVE>;
> +		status = "disabled";
>   
>   		main_r5fss0_core0: r5f@78000000 {
>   			compatible = "ti,am64-r5f";
> @@ -935,6 +936,7 @@ main_r5fss0_core0: r5f@78000000 {
>   			ti,atcm-enable = <1>;
>   			ti,btcm-enable = <1>;
>   			ti,loczrama = <1>;
> +			status = "disabled";
>   		};
>   
>   		main_r5fss0_core1: r5f@78200000 {
> @@ -950,6 +952,7 @@ main_r5fss0_core1: r5f@78200000 {
>   			ti,atcm-enable = <1>;
>   			ti,btcm-enable = <1>;
>   			ti,loczrama = <1>;
> +			status = "disabled";
>   		};
>   	};
>   
> @@ -963,6 +966,7 @@ main_r5fss1: r5fss@78400000 {
>   			 <0x78600000 0x00 0x78600000 0x08000>,
>   			 <0x78700000 0x00 0x78700000 0x08000>;
>   		power-domains = <&k3_pds 120 TI_SCI_PD_EXCLUSIVE>;
> +		status = "disabled";
>   
>   		main_r5fss1_core0: r5f@78400000 {
>   			compatible = "ti,am64-r5f";
> @@ -977,6 +981,7 @@ main_r5fss1_core0: r5f@78400000 {
>   			ti,atcm-enable = <1>;
>   			ti,btcm-enable = <1>;
>   			ti,loczrama = <1>;
> +			status = "disabled";
>   		};
>   
>   		main_r5fss1_core1: r5f@78600000 {
> @@ -992,6 +997,7 @@ main_r5fss1_core1: r5f@78600000 {
>   			ti,atcm-enable = <1>;
>   			ti,btcm-enable = <1>;
>   			ti,loczrama = <1>;
> +			status = "disabled";
>   		};
>   	};
>   
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> index d9d491b12c33..03c46d74ebb5 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> @@ -349,28 +349,40 @@ &main_pktdma {
>   	bootph-all;
>   };
>   
> +&main_r5fss0 {
> +	status = "okay";
> +};
> +
>   &main_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
>   	memory-region = <&main_r5fss0_core0_dma_memory_region>,
>   			<&main_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss0_core1 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
>   	memory-region = <&main_r5fss0_core1_dma_memory_region>,
>   			<&main_r5fss0_core1_memory_region>;
> +	status = "okay";
> +};
> +
> +&main_r5fss1 {
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core0 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
>   	memory-region = <&main_r5fss1_core0_dma_memory_region>,
>   			<&main_r5fss1_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core1 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
>   	memory-region = <&main_r5fss1_core1_dma_memory_region>,
>   			<&main_r5fss1_core1_memory_region>;
> +	status = "okay";
>   };
>   
>   &mcu_m4fss {
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> index e01866372293..a07503b192c9 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> @@ -764,28 +764,40 @@ mbox_m4_0: mbox-m4-0 {
>   	};
>   };
>   
> +&main_r5fss0 {
> +	status = "okay";
> +};
> +
>   &main_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
>   	memory-region = <&main_r5fss0_core0_dma_memory_region>,
>   			<&main_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss0_core1 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
>   	memory-region = <&main_r5fss0_core1_dma_memory_region>,
>   			<&main_r5fss0_core1_memory_region>;
> +	status = "okay";
> +};
> +
> +&main_r5fss1 {
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core0 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
>   	memory-region = <&main_r5fss1_core0_dma_memory_region>,
>   			<&main_r5fss1_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core1 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
>   	memory-region = <&main_r5fss1_core1_dma_memory_region>,
>   			<&main_r5fss1_core1_memory_region>;
> +	status = "okay";
>   };
>   
>   &mcu_m4fss {
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> index 1deaa0be0085..ae4a6552644c 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> @@ -679,28 +679,40 @@ mbox_m4_0: mbox-m4-0 {
>   	};
>   };
>   
> +&main_r5fss0 {
> +	status = "okay";
> +};
> +
>   &main_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
>   	memory-region = <&main_r5fss0_core0_dma_memory_region>,
>   			<&main_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss0_core1 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
>   	memory-region = <&main_r5fss0_core1_dma_memory_region>,
>   			<&main_r5fss0_core1_memory_region>;
> +	status = "okay";
> +};
> +
> +&main_r5fss1 {
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core0 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
>   	memory-region = <&main_r5fss1_core0_dma_memory_region>,
>   			<&main_r5fss1_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core1 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
>   	memory-region = <&main_r5fss1_core1_dma_memory_region>,
>   			<&main_r5fss1_core1_memory_region>;
> +	status = "okay";
>   };
>   
>   &mcu_m4fss {
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
> index a5cec9a07510..d0c1e4dc1da7 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
> @@ -488,28 +488,40 @@ AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* USB0_DRVVBUS.USB0_DRVVBUS */
>   	};
>   };
>   
> +&main_r5fss0 {
> +	status = "okay";
> +};
> +
>   &main_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
>   	memory-region = <&main_r5fss0_core0_dma_memory_region>,
>   			<&main_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss0_core1 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
>   	memory-region = <&main_r5fss0_core1_dma_memory_region>,
>   			<&main_r5fss0_core1_memory_region>;
> +	status = "okay";
> +};
> +
> +&main_r5fss1 {
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core0 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
>   	memory-region = <&main_r5fss1_core0_dma_memory_region>,
>   			<&main_r5fss1_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core1 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
>   	memory-region = <&main_r5fss1_core1_dma_memory_region>,
>   			<&main_r5fss1_core1_memory_region>;
> +	status = "okay";
>   };
>   
>   /* SoC default UART console */
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
> index 828d815d6bdf..876cbb21961d 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
> @@ -167,28 +167,40 @@ mbox_m4_0: mbox-m4-0 {
>   	};
>   };
>   
> +&main_r5fss0 {
> +	status = "okay";
> +};
> +
>   &main_r5fss0_core0 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
>   	memory-region = <&main_r5fss0_core0_dma_memory_region>,
>   			<&main_r5fss0_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss0_core1 {
>   	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
>   	memory-region = <&main_r5fss0_core1_dma_memory_region>,
>   			<&main_r5fss0_core1_memory_region>;
> +	status = "okay";
> +};
> +
> +&main_r5fss1 {
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core0 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
>   	memory-region = <&main_r5fss1_core0_dma_memory_region>,
>   			<&main_r5fss1_core0_memory_region>;
> +	status = "okay";
>   };
>   
>   &main_r5fss1_core1 {
>   	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
>   	memory-region = <&main_r5fss1_core1_dma_memory_region>,
>   			<&main_r5fss1_core1_memory_region>;
> +	status = "okay";
>   };
>   
>   &ospi0 {

Re: [PATCH v2 30/33] arm64: dts: ti: k3-am62-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Wadim Egorov]

On 8/23/25 7:08 PM, Beleswar Padhi wrote:
> The TI K3 AM62 SoCs have multiple programmable remote processors like
> R5F, M4F etc. The TI SDKs for AM62 SoCs offer sample firmwares which
> could be run on these cores to demonstrate an "echo" IPC test. Those
> firmware require certain memory carveouts to be reserved from system
> memory, timers to be reserved, and certain mailbox configurations for
> interrupt based messaging. These configurations could be different for a
> different firmware.
> 
> While DT is not meant for system configurations, at least refactor these
> configurations from board level DTS into a dtsi for now. This dtsi for
> TI IPC firmware is board-independent and can be applied to all boards
> from the same SoC Family. This gets rid of code duplication and allows
> more freedom for users developing custom firmware (or no firmware) to
> utilize system resources better; easily by swapping out this dtsi. To
> maintain backward compatibility, the dtsi is included in all boards.
> 

Reviewed-by: Wadim Egorov <w.egorov@phytec.de> # phycore-am62x
Tested-by: Wadim Egorov <w.egorov@phytec.de> # phycore-am62x

> Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
> ---
> v2: Changelog:
> 1. Re-ordered patch from [PATCH 22/33] to [PATCH v2 30/33].
> 
> Link to v1:
> https://lore.kernel.org/all/20250814223839.3256046-23-b-padhi@ti.com/
> 
>   .../boot/dts/ti/k3-am62-phycore-som.dtsi      | 44 +---------------
>   .../boot/dts/ti/k3-am62-pocketbeagle2.dts     | 46 +---------------
>   .../boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi  | 52 +++++++++++++++++++
>   arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi    | 34 +-----------
>   .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 46 +---------------
>   5 files changed, 59 insertions(+), 163 deletions(-)
>   create mode 100644 arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> index dcd22ff487ec..34b2e8d6bf80 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> @@ -52,18 +52,6 @@ rtos_ipc_memory_region: ipc-memories@9c800000 {
>   			no-map;
>   		};
>   
> -		mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0x9cb00000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_memory_region: m4f-memory@9cc00000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0x9cc00000 0x00 0xe00000>;
> -			no-map;
> -		};
> -
>   		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9da00000 {
>   			compatible = "shared-dma-pool";
>   			reg = <0x00 0x9da00000 0x00 0x100000>;
> @@ -245,20 +233,6 @@ cpsw3g_phy1: ethernet-phy@1 {
>   	};
>   };
>   
> -&mailbox0_cluster0 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 0>;
> -		ti,mbox-tx = <1 0 0>;
> -	};
> -
> -	mbox_r5_0: mbox-r5-0 {
> -		ti,mbox-rx = <2 0 0>;
> -		ti,mbox-tx = <3 0 0>;
> -	};
> -};
> -
>   &main_pktdma {
>   	bootph-all;
>   };
> @@ -364,13 +338,6 @@ i2c_som_rtc: rtc@52 {
>   	};
>   };
>   
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
>   &ospi0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&ospi0_pins_default>;
> @@ -399,13 +366,4 @@ &sdhci0 {
>   	status = "okay";
>   };
>   
> -&wkup_r5fss0 {
> -	status = "okay";
> -};
> -
> -&wkup_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
> -	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
> -			<&wkup_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> +#include "k3-am62-ti-ipc-firmware.dtsi"
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
> index 729901b2ca10..e634abe9e8e6 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
> @@ -54,18 +54,6 @@ linux,cma {
>   			linux,cma-default;
>   		};
>   
> -		mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0x9cb00000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_memory_region: m4f-memory@9cc00000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0x9cc00000 0x00 0xe00000>;
> -			no-map;
> -		};
> -
>   		secure_tfa_ddr: tfa@9e780000 {
>   			reg = <0x00 0x9e780000 0x00 0x80000>;
>   			alignment = <0x1000>;
> @@ -298,20 +286,6 @@ &epwm2 {
>   	pinctrl-0 = <&epwm2_pins_default>;
>   };
>   
> -&mailbox0_cluster0 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 0>;
> -		ti,mbox-tx = <1 0 0>;
> -	};
> -
> -	mbox_r5_0: mbox-r5-0 {
> -		ti,mbox-rx = <2 0 0>;
> -		ti,mbox-tx = <3 0 0>;
> -	};
> -};
> -
>   &main_uart0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&main_uart0_pins_default>;
> @@ -362,24 +336,6 @@ &main_i2c2 {
>   	status = "okay";
>   };
>   
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
> -&wkup_r5fss0 {
> -	status = "okay";
> -};
> -
> -&wkup_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
> -	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
> -			<&wkup_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> -
>   &mcu_pmx0 {
>   	wkup_uart0_pins_default: wkup-uart0-default-pins {
>   		pinctrl-single,pins = <
> @@ -543,3 +499,5 @@ ldo4_reg: ldo4 {
>   		};
>   	};
>   };
> +
> +#include "k3-am62-ti-ipc-firmware.dtsi"
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi
> new file mode 100644
> index 000000000000..9376ae91a17f
> --- /dev/null
> +++ b/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi
> @@ -0,0 +1,52 @@
> +// SPDX-License-Identifier: GPL-2.0-only OR MIT
> +/**
> + * Device Tree Source for enabling IPC using TI SDK firmware on AM62 SoCs
> + *
> + * Copyright (C) 2021-2025 Texas Instruments Incorporated - https://www.ti.com/
> + */
> +
> +&reserved_memory {
> +	mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0x9cb00000 0x00 0x100000>;
> +		no-map;
> +	};
> +
> +	mcu_m4fss_memory_region: m4f-memory@9cc00000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0x9cc00000 0x00 0xe00000>;
> +		no-map;
> +	};
> +};
> +
> +&mailbox0_cluster0 {
> +	status = "okay";
> +
> +	mbox_m4_0: mbox-m4-0 {
> +		ti,mbox-rx = <0 0 0>;
> +		ti,mbox-tx = <1 0 0>;
> +	};
> +
> +	mbox_r5_0: mbox-r5-0 {
> +		ti,mbox-rx = <2 0 0>;
> +		ti,mbox-tx = <3 0 0>;
> +	};
> +};
> +
> +&mcu_m4fss {
> +	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
> +	memory-region = <&mcu_m4fss_dma_memory_region>,
> +			<&mcu_m4fss_memory_region>;
> +	status = "okay";
> +};
> +
> +&wkup_r5fss0 {
> +	status = "okay";
> +};
> +
> +&wkup_r5fss0_core0 {
> +	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
> +	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
> +			<&wkup_r5fss0_core0_memory_region>;
> +	status = "okay";
> +};
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
> index fa2c1dc738d6..fd83dbc9f37b 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
> @@ -1334,38 +1334,6 @@ &main_i2c3 {
>   	status = "disabled";
>   };
>   
> -&mailbox0_cluster0 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 0>;
> -		ti,mbox-tx = <1 0 0>;
> -	};
> -
> -	mbox_r5_0: mbox-r5-0 {
> -		ti,mbox-rx = <2 0 0>;
> -		ti,mbox-tx = <3 0 0>;
> -	};
> -};
> -
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
> -&wkup_r5fss0 {
> -	status = "okay";
> -};
> -
> -&wkup_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
> -	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
> -			<&wkup_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> -
>   /* Verdin CAN_1 */
>   &main_mcan0 {
>   	pinctrl-names = "default";
> @@ -1549,3 +1517,5 @@ &wkup_uart0 {
>   	pinctrl-0 = <&pinctrl_wkup_uart0>;
>   	status = "disabled";
>   };
> +
> +#include "k3-am62-ti-ipc-firmware.dtsi"
> diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> index 03b8e246d8c2..ec2685144558 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> @@ -58,18 +58,6 @@ linux,cma {
>   			linux,cma-default;
>   		};
>   
> -		mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0x9cb00000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_memory_region: m4f-memory@9cc00000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0x9cc00000 0x00 0xe00000>;
> -			no-map;
> -		};
> -
>   		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9da00000 {
>   			compatible = "shared-dma-pool";
>   			reg = <0x00 0x9da00000 0x00 0x100000>;
> @@ -477,38 +465,6 @@ cpsw3g_phy0: ethernet-phy@0 {
>   	};
>   };
>   
> -&mailbox0_cluster0 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 0>;
> -		ti,mbox-tx = <1 0 0>;
> -	};
> -
> -	mbox_r5_0: mbox-r5-0 {
> -		ti,mbox-rx = <2 0 0>;
> -		ti,mbox-tx = <3 0 0>;
> -	};
> -};
> -
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
> -&wkup_r5fss0 {
> -	status = "okay";
> -};
> -
> -&wkup_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
> -	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
> -			<&wkup_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> -
>   &usbss0 {
>   	bootph-all;
>   	status = "okay";
> @@ -601,3 +557,5 @@ &epwm1 {
>   	pinctrl-0 = <&main_epwm1_pins_default>;
>   	status = "okay";
>   };
> +
> +#include "k3-am62-ti-ipc-firmware.dtsi"

Re: [PATCH v2 32/33] arm64: dts: ti: k3-am64-ti-ipc-firmware: Refactor IPC cfg into new dtsi

[Wadim Egorov]

On 8/23/25 7:09 PM, Beleswar Padhi wrote:
> The TI K3 AM64 SoCs have multiple programmable remote processors like
> R5F, M4F etc. The TI SDKs for AM64 SoCs offer sample firmwares which
> could be run on these cores to demonstrate an "echo" IPC test. Those
> firmware require certain memory carveouts to be reserved from system
> memory, timers to be reserved, and certain mailbox configurations for
> interrupt based messaging. These configurations could be different for a
> different firmware.
> 
> While DT is not meant for system configurations, at least refactor these
> configurations from board level DTS into a dtsi for now. This dtsi for
> TI IPC firmware is board-independent and can be applied to all boards
> from the same SoC Family. This gets rid of code duplication and allows
> more freedom for users developing custom firmware (or no firmware) to
> utilize system resources better; easily by swapping out this dtsi. To
> maintain backward compatibility, the dtsi is included in all boards.
> 
> Signed-off-by: Beleswar Padhi <b-padhi@ti.com>

Reviewed-by: Wadim Egorov <w.egorov@phytec.de> # phycore-am64x
Tested-by: Wadim Egorov <w.egorov@phytec.de> # phycore-am64x

> ---
> v2: Changelog:
> 1. Re-ordered patch from [PATCH 30/33] to [PATCH v2 32/33].
> 
> Link to v1:
> https://lore.kernel.org/all/20250814223839.3256046-31-b-padhi@ti.com/
> 
>   .../boot/dts/ti/k3-am64-phycore-som.dtsi      | 160 +----------------
>   .../boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi  | 162 ++++++++++++++++++
>   arch/arm64/boot/dts/ti/k3-am642-evm.dts       | 156 +----------------
>   arch/arm64/boot/dts/ti/k3-am642-sk.dts        | 156 +----------------
>   arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi   | 156 +----------------
>   .../arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi | 156 +----------------
>   6 files changed, 172 insertions(+), 774 deletions(-)
>   create mode 100644 arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> index 1efd547b2ba6..af0fed6124e2 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> @@ -52,60 +52,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
>   			reg = <0x00 0xa0100000 0x00 0xf00000>;
>   			no-map;
>   		};
> -
> -		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_memory_region: m4f-memory@a4100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		rtos_ipc_memory_region: ipc-memories@a5000000 {
> -			reg = <0x00 0xa5000000 0x00 0x00800000>;
> -			alignment = <0x1000>;
> -			no-map;
> -		};
>   	};
>   
>   	leds {
> @@ -238,67 +184,6 @@ &cpsw_port1 {
>   	status = "okay";
>   };
>   
> -&mailbox0_cluster2 {
> -	status = "okay";
> -
> -	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster4 {
> -	status = "okay";
> -
> -	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster6 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -};
> -
> -/* main_timer8 is used by r5f0-0 */
> -&main_timer8 {
> -	status = "reserved";
> -};
> -
> -/* main_timer9 is used by r5f0-1 */
> -&main_timer9 {
> -	status = "reserved";
> -};
> -
> -/* main_timer10 is used by r5f1-0 */
> -&main_timer10 {
> -	status = "reserved";
> -};
> -
> -/* main_timer11 is used by r5f1-1 */
> -&main_timer11 {
> -	status = "reserved";
> -};
> -
> -&main_r5fss0 {
> -	status = "okay";
> -};
> -
>   &main_i2c0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&main_i2c0_pins_default>;
> @@ -373,49 +258,6 @@ &main_pktdma {
>   	bootph-all;
>   };
>   
> -&main_r5fss0 {
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
> -	memory-region = <&main_r5fss0_core0_dma_memory_region>,
> -			<&main_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core1 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
> -	memory-region = <&main_r5fss0_core1_dma_memory_region>,
> -			<&main_r5fss0_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1 {
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core0 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
> -	memory-region = <&main_r5fss1_core0_dma_memory_region>,
> -			<&main_r5fss1_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core1 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
> -	memory-region = <&main_r5fss1_core1_dma_memory_region>,
> -			<&main_r5fss1_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
>   &ospi0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&ospi0_pins_default>;
> @@ -451,3 +293,5 @@ adc {
>   		ti,adc-channels = <0 1 2 3 4 5 6 7>;
>   	};
>   };
> +
> +#include "k3-am64-ti-ipc-firmware.dtsi"
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi
> new file mode 100644
> index 000000000000..847495f76831
> --- /dev/null
> +++ b/arch/arm64/boot/dts/ti/k3-am64-ti-ipc-firmware.dtsi
> @@ -0,0 +1,162 @@
> +// SPDX-License-Identifier: GPL-2.0-only OR MIT
> +/**
> + * Device Tree Source for enabling IPC using TI SDK firmware on AM64 SoCs
> + *
> + * Copyright (C) 2024-2025 Texas Instruments Incorporated - https://www.ti.com/
> + */
> +
> +&reserved_memory {
> +	main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0xa1000000 0x00 0x100000>;
> +		no-map;
> +	};
> +
> +	main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0xa1100000 0x00 0xf00000>;
> +		no-map;
> +	};
> +
> +	main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0xa2000000 0x00 0x100000>;
> +		no-map;
> +	};
> +
> +	main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0xa2100000 0x00 0xf00000>;
> +		no-map;
> +	};
> +
> +	main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0xa3000000 0x00 0x100000>;
> +		no-map;
> +	};
> +
> +	main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0xa3100000 0x00 0xf00000>;
> +		no-map;
> +	};
> +
> +	mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0xa4000000 0x00 0x100000>;
> +		no-map;
> +	};
> +
> +	mcu_m4fss_memory_region: m4f-memory@a4100000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x00 0xa4100000 0x00 0xf00000>;
> +		no-map;
> +	};
> +
> +	rtos_ipc_memory_region: ipc-memories@a5000000 {
> +		reg = <0x00 0xa5000000 0x00 0x00800000>;
> +		alignment = <0x1000>;
> +		no-map;
> +	};
> +};
> +
> +&mailbox0_cluster2 {
> +	status = "okay";
> +
> +	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
> +		ti,mbox-rx = <0 0 2>;
> +		ti,mbox-tx = <1 0 2>;
> +	};
> +
> +	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
> +		ti,mbox-rx = <2 0 2>;
> +		ti,mbox-tx = <3 0 2>;
> +	};
> +};
> +
> +&mailbox0_cluster4 {
> +	status = "okay";
> +
> +	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
> +		ti,mbox-rx = <0 0 2>;
> +		ti,mbox-tx = <1 0 2>;
> +	};
> +
> +	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
> +		ti,mbox-rx = <2 0 2>;
> +		ti,mbox-tx = <3 0 2>;
> +	};
> +};
> +
> +&mailbox0_cluster6 {
> +	status = "okay";
> +
> +	mbox_m4_0: mbox-m4-0 {
> +		ti,mbox-rx = <0 0 2>;
> +		ti,mbox-tx = <1 0 2>;
> +	};
> +};
> +
> +/* main_timer8 is used by r5f0-0 */
> +&main_timer8 {
> +	status = "reserved";
> +};
> +
> +/* main_timer9 is used by r5f0-1 */
> +&main_timer9 {
> +	status = "reserved";
> +};
> +
> +/* main_timer10 is used by r5f1-0 */
> +&main_timer10 {
> +	status = "reserved";
> +};
> +
> +/* main_timer11 is used by r5f1-1 */
> +&main_timer11 {
> +	status = "reserved";
> +};
> +
> +&main_r5fss0 {
> +	status = "okay";
> +};
> +
> +&main_r5fss0_core0 {
> +	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
> +	memory-region = <&main_r5fss0_core0_dma_memory_region>,
> +			<&main_r5fss0_core0_memory_region>;
> +	status = "okay";
> +};
> +
> +&main_r5fss0_core1 {
> +	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
> +	memory-region = <&main_r5fss0_core1_dma_memory_region>,
> +			<&main_r5fss0_core1_memory_region>;
> +	status = "okay";
> +};
> +
> +&main_r5fss1 {
> +	status = "okay";
> +};
> +
> +&main_r5fss1_core0 {
> +	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
> +	memory-region = <&main_r5fss1_core0_dma_memory_region>,
> +			<&main_r5fss1_core0_memory_region>;
> +	status = "okay";
> +};
> +
> +&main_r5fss1_core1 {
> +	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
> +	memory-region = <&main_r5fss1_core1_dma_memory_region>,
> +			<&main_r5fss1_core1_memory_region>;
> +	status = "okay";
> +};
> +
> +&mcu_m4fss {
> +	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
> +	memory-region = <&mcu_m4fss_dma_memory_region>,
> +			<&mcu_m4fss_memory_region>;
> +	status = "okay";
> +};
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> index 7640c5efe9b8..05b7cdd25a8c 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> @@ -64,60 +64,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
>   			reg = <0x00 0xa0100000 0x00 0xf00000>;
>   			no-map;
>   		};
> -
> -		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_memory_region: m4f-memory@a4100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		rtos_ipc_memory_region: ipc-memories@a5000000 {
> -			reg = <0x00 0xa5000000 0x00 0x00800000>;
> -			alignment = <0x1000>;
> -			no-map;
> -		};
>   	};
>   
>   	evm_12v0: regulator-0 {
> @@ -727,106 +673,6 @@ partition@3fc0000 {
>   	};
>   };
>   
> -&mailbox0_cluster2 {
> -	status = "okay";
> -
> -	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster4 {
> -	status = "okay";
> -
> -	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster6 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -};
> -
> -&main_r5fss0 {
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
> -	memory-region = <&main_r5fss0_core0_dma_memory_region>,
> -			<&main_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core1 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
> -	memory-region = <&main_r5fss0_core1_dma_memory_region>,
> -			<&main_r5fss0_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1 {
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core0 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
> -	memory-region = <&main_r5fss1_core0_dma_memory_region>,
> -			<&main_r5fss1_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core1 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
> -	memory-region = <&main_r5fss1_core1_dma_memory_region>,
> -			<&main_r5fss1_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
> -/* main_timer8 is used by r5f0-0 */
> -&main_timer8 {
> -	status = "reserved";
> -};
> -
> -/* main_timer9 is used by r5f0-1 */
> -&main_timer9 {
> -	status = "reserved";
> -};
> -
> -/* main_timer10 is used by r5f1-0 */
> -&main_timer10 {
> -	status = "reserved";
> -};
> -
> -/* main_timer11 is used by r5f1-1 */
> -&main_timer11 {
> -	status = "reserved";
> -};
> -
>   &serdes_ln_ctrl {
>   	idle-states = <AM64_SERDES0_LANE0_PCIE0>;
>   };
> @@ -890,3 +736,5 @@ &icssg1_iep0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&icssg1_iep0_pins_default>;
>   };
> +
> +#include "k3-am64-ti-ipc-firmware.dtsi"
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> index fb8bd66f2f94..cc1569a6519b 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> @@ -62,60 +62,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
>   			reg = <0x00 0xa0100000 0x00 0xf00000>;
>   			no-map;
>   		};
> -
> -		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_memory_region: m4f-memory@a4100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		rtos_ipc_memory_region: ipc-memories@a5000000 {
> -			reg = <0x00 0xa5000000 0x00 0x00800000>;
> -			alignment = <0x1000>;
> -			no-map;
> -		};
>   	};
>   
>   	vusb_main: regulator-0 {
> @@ -642,106 +588,6 @@ partition@3fc0000 {
>   	};
>   };
>   
> -&mailbox0_cluster2 {
> -	status = "okay";
> -
> -	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster4 {
> -	status = "okay";
> -
> -	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster6 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -};
> -
> -&main_r5fss0 {
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
> -	memory-region = <&main_r5fss0_core0_dma_memory_region>,
> -			<&main_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core1 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
> -	memory-region = <&main_r5fss0_core1_dma_memory_region>,
> -			<&main_r5fss0_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1 {
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core0 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
> -	memory-region = <&main_r5fss1_core0_dma_memory_region>,
> -			<&main_r5fss1_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core1 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
> -	memory-region = <&main_r5fss1_core1_dma_memory_region>,
> -			<&main_r5fss1_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
> -/* main_timer8 is used by r5f0-0 */
> -&main_timer8 {
> -	status = "reserved";
> -};
> -
> -/* main_timer9 is used by r5f0-1 */
> -&main_timer9 {
> -	status = "reserved";
> -};
> -
> -/* main_timer10 is used by r5f1-0 */
> -&main_timer10 {
> -	status = "reserved";
> -};
> -
> -/* main_timer11 is used by r5f1-1 */
> -&main_timer11 {
> -	status = "reserved";
> -};
> -
>   &ecap0 {
>   	status = "okay";
>   	/* PWM is available on Pin 1 of header J3 */
> @@ -755,3 +601,5 @@ &eqep0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&main_eqep0_pins_default>;
>   };
> +
> +#include "k3-am64-ti-ipc-firmware.dtsi"
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
> index 8cb61f831734..ce23362b88c3 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
> @@ -126,60 +126,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
>   			reg = <0x00 0xa0100000 0x00 0xf00000>;
>   			no-map;
>   		};
> -
> -		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_memory_region: m4f-memory@a4100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		rtos_ipc_memory_region: ipc-memories@a5000000 {
> -			reg = <0x00 0xa5000000 0x00 0x00800000>;
> -			alignment = <0x1000>;
> -			no-map;
> -		};
>   	};
>   
>   	vdd_mmc0: regulator-vdd-mmc0 {
> @@ -281,63 +227,6 @@ ethernet_phy2: ethernet-phy@f {
>   	};
>   };
>   
> -&mailbox0_cluster2 {
> -	status = "okay";
> -
> -	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster4 {
> -	status = "okay";
> -
> -	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster6 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -};
> -
> -/* main_timer8 is used by r5f0-0 */
> -&main_timer8 {
> -	status = "reserved";
> -};
> -
> -/* main_timer9 is used by r5f0-1 */
> -&main_timer9 {
> -	status = "reserved";
> -};
> -
> -/* main_timer10 is used by r5f1-0 */
> -&main_timer10 {
> -	status = "reserved";
> -};
> -
> -/* main_timer11 is used by r5f1-1 */
> -&main_timer11 {
> -	status = "reserved";
> -};
> -
>   &main_i2c0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&main_i2c0_default_pins>;
> @@ -535,49 +424,6 @@ AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* USB0_DRVVBUS.USB0_DRVVBUS */
>   	};
>   };
>   
> -&main_r5fss0 {
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
> -	memory-region = <&main_r5fss0_core0_dma_memory_region>,
> -			<&main_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core1 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
> -	memory-region = <&main_r5fss0_core1_dma_memory_region>,
> -			<&main_r5fss0_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1 {
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core0 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
> -	memory-region = <&main_r5fss1_core0_dma_memory_region>,
> -			<&main_r5fss1_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core1 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
> -	memory-region = <&main_r5fss1_core1_dma_memory_region>,
> -			<&main_r5fss1_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
>   /* SoC default UART console */
>   &main_uart0 {
>   	pinctrl-names = "default";
> @@ -656,3 +502,5 @@ &usbss0 {
>   	ti,vbus-divider;
>   	ti,usb2-only;
>   };
> +
> +#include "k3-am64-ti-ipc-firmware.dtsi"
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
> index 860b79aa5ef5..e752fc8b0a88 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am642-tqma64xxl.dtsi
> @@ -42,60 +42,6 @@ main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
>   			reg = <0x00 0xa0100000 0x00 0xf00000>;
>   			no-map;
>   		};
> -
> -		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa1100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa2100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa3100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_dma_memory_region: m4f-dma-memory@a4000000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4000000 0x00 0x100000>;
> -			no-map;
> -		};
> -
> -		mcu_m4fss_memory_region: m4f-memory@a4100000 {
> -			compatible = "shared-dma-pool";
> -			reg = <0x00 0xa4100000 0x00 0xf00000>;
> -			no-map;
> -		};
> -
> -		rtos_ipc_memory_region: ipc-memories@a5000000 {
> -			reg = <0x00 0xa5000000 0x00 0x00800000>;
> -			alignment = <0x1000>;
> -			no-map;
> -		};
>   	};
>   
>   	reg_1v8: regulator-1v8 {
> @@ -142,106 +88,6 @@ eeprom1: eeprom@54 {
>   	};
>   };
>   
> -&mailbox0_cluster2 {
> -	status = "okay";
> -
> -	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster4 {
> -	status = "okay";
> -
> -	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -
> -	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
> -		ti,mbox-rx = <2 0 2>;
> -		ti,mbox-tx = <3 0 2>;
> -	};
> -};
> -
> -&mailbox0_cluster6 {
> -	status = "okay";
> -
> -	mbox_m4_0: mbox-m4-0 {
> -		ti,mbox-rx = <0 0 2>;
> -		ti,mbox-tx = <1 0 2>;
> -	};
> -};
> -
> -/* main_timer8 is used by r5f0-0 */
> -&main_timer8 {
> -	status = "reserved";
> -};
> -
> -/* main_timer9 is used by r5f0-1 */
> -&main_timer9 {
> -	status = "reserved";
> -};
> -
> -/* main_timer10 is used by r5f1-0 */
> -&main_timer10 {
> -	status = "reserved";
> -};
> -
> -/* main_timer11 is used by r5f1-1 */
> -&main_timer11 {
> -	status = "reserved";
> -};
> -
> -&main_r5fss0 {
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core0 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
> -	memory-region = <&main_r5fss0_core0_dma_memory_region>,
> -			<&main_r5fss0_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss0_core1 {
> -	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
> -	memory-region = <&main_r5fss0_core1_dma_memory_region>,
> -			<&main_r5fss0_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1 {
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core0 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
> -	memory-region = <&main_r5fss1_core0_dma_memory_region>,
> -			<&main_r5fss1_core0_memory_region>;
> -	status = "okay";
> -};
> -
> -&main_r5fss1_core1 {
> -	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
> -	memory-region = <&main_r5fss1_core1_dma_memory_region>,
> -			<&main_r5fss1_core1_memory_region>;
> -	status = "okay";
> -};
> -
> -&mcu_m4fss {
> -	mboxes = <&mailbox0_cluster6 &mbox_m4_0>;
> -	memory-region = <&mcu_m4fss_dma_memory_region>,
> -			<&mcu_m4fss_memory_region>;
> -	status = "okay";
> -};
> -
>   &ospi0 {
>   	status = "okay";
>   	pinctrl-names = "default";
> @@ -315,3 +161,5 @@ AM64X_IOPAD(0x0008, PIN_INPUT, 0)
>   		>;
>   	};
>   };
> +
> +#include "k3-am64-ti-ipc-firmware.dtsi"

Re: [PATCH v2 18/33] arm64: dts: ti: k3-am64-phycore-som: Add missing cfg for TI IPC Firmware

[Beleswar Prasad Padhi]

Hi Wadim,

On 28/08/25 17:12, Wadim Egorov wrote:
>
>
> On 8/23/25 7:08 PM, Beleswar Padhi wrote:
>> The k3-am64-phycore SoM enables all R5F and M4F remote processors.
>> Reserve the MAIN domain timers that are used by R5F remote
>> processors for ticks to avoid rproc crashes. This config aligns with
>> other AM64 boards and can be refactored out later.
>>
>> Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
>
> I am not sure you need this patch, because you are deleting everything you add in patch 32.


I am also including the "k3-am64-ti-ipc-firmware.dtsi" in patch [32/33]
which has these timer configurations.

This [18/33] is an intermediate patch. We are putting all AM64* boards
into same configuration first before refactoring everything into a
common file [32/33]. That way if there is a bug someday in the future,
due to added configs, the bisect lands on the [18/33] patch and not on
the refactoring patch[32/33].

Just trying to keep every file same before & after the refactoring patch

> But I tested the series on our hardware, so
>
> Tested-by: Wadim Egorov <w.egorov@phytec.de>


Thanks,
Beleswar

>
>> ---
>> Cc: Wadim Egorov <w.egorov@phytec.de>
>> Cc: Matt McKee <mmckee@phytec.com>
>> Cc: Garrett Giordano <ggiordano@phytec.com>
>> Cc: Nathan Morrisson <nmorrisson@phytec.com>
>> Cc: John Ma <jma@phytec.com>
>> Cc: Logan Bristol <logan.bristol@utexas.edu>
>> Requesting for review/test of this patch.
>>
>> v2: Changelog:
>> 1. Re-ordered patch from [PATCH 28/33] to [PATCH v2 18/33].
>>
>> Link to v1:
>> https://lore.kernel.org/all/20250814223839.3256046-29-b-padhi@ti.com/
>>
>>   .../boot/dts/ti/k3-am64-phycore-som.dtsi      | 24 +++++++++++++++++++
>>   1 file changed, 24 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
>> index 03c46d74ebb5..1efd547b2ba6 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
>> @@ -275,6 +275,30 @@ mbox_m4_0: mbox-m4-0 {
>>       };
>>   };
>>   +/* main_timer8 is used by r5f0-0 */
>> +&main_timer8 {
>> +    status = "reserved";
>> +};
>> +
>> +/* main_timer9 is used by r5f0-1 */
>> +&main_timer9 {
>> +    status = "reserved";
>> +};
>> +
>> +/* main_timer10 is used by r5f1-0 */
>> +&main_timer10 {
>> +    status = "reserved";
>> +};
>> +
>> +/* main_timer11 is used by r5f1-1 */
>> +&main_timer11 {
>> +    status = "reserved";
>> +};
>> +
>> +&main_r5fss0 {
>> +    status = "okay";
>> +};
>> +
>>   &main_i2c0 {
>>       pinctrl-names = "default";
>>       pinctrl-0 = <&main_i2c0_pins_default>;
>