[PATCH v2] arm64: dts: ti: k3-am65: Add AM652 DTSI file

[PATCH v2] arm64: dts: ti: k3-am65: Add AM652 DTSI file

[Andrew Davis]

The AM652 is basically a AM654 but with 2 cores instead of 4. Add
a DTSI file for AM652 matching AM654 except this core difference.

This removes the need to remove the extra cores from AM654 manually
in DT files for boards that use the AM652 variant. Do that for
the IOT2050 boards here.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
---

Changes for v2:
 - Add r-b
 - Rebase on next-20231204

 .../boot/dts/ti/k3-am65-iot2050-common.dtsi   |  1 -
 arch/arm64/boot/dts/ti/k3-am652.dtsi          | 74 +++++++++++++++++++
 .../ti/k3-am6528-iot2050-basic-common.dtsi    | 11 +--
 .../ti/k3-am6548-iot2050-advanced-common.dtsi |  1 +
 4 files changed, 76 insertions(+), 11 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am652.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 ab1dffa5c1c6f..73ff119d85cdc 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -9,7 +9,6 @@
  * Common bits of the IOT2050 Basic and Advanced variants, PG1 and PG2
  */
 
-#include "k3-am654.dtsi"
 #include <dt-bindings/phy/phy.h>
 #include <dt-bindings/net/ti-dp83867.h>
 
diff --git a/arch/arm64/boot/dts/ti/k3-am652.dtsi b/arch/arm64/boot/dts/ti/k3-am652.dtsi
new file mode 100644
index 0000000000000..0f22e00faa903
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am652.dtsi
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for AM65 SoC family in Dual core configuration
+ *
+ * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+#include "k3-am65.dtsi"
+
+/ {
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu-map {
+			cluster0: cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+
+				core1 {
+					cpu = <&cpu1>;
+				};
+			};
+		};
+
+		cpu0: cpu@0 {
+			compatible = "arm,cortex-a53";
+			reg = <0x000>;
+			device_type = "cpu";
+			enable-method = "psci";
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>;
+			next-level-cache = <&L2_0>;
+		};
+
+		cpu1: cpu@1 {
+			compatible = "arm,cortex-a53";
+			reg = <0x001>;
+			device_type = "cpu";
+			enable-method = "psci";
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>;
+			next-level-cache = <&L2_0>;
+		};
+	};
+
+	L2_0: l2-cache0 {
+		compatible = "cache";
+		cache-level = <2>;
+		cache-unified;
+		cache-size = <0x80000>;
+		cache-line-size = <64>;
+		cache-sets = <512>;
+		next-level-cache = <&msmc_l3>;
+	};
+
+	msmc_l3: l3-cache0 {
+		compatible = "cache";
+		cache-level = <3>;
+		cache-unified;
+	};
+
+	thermal_zones: thermal-zones {
+		#include "k3-am654-industrial-thermal.dtsi"
+	};
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi b/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi
index 5ab434c02ab6b..feb0eae4e6df4 100644
--- a/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi
@@ -9,6 +9,7 @@
  * Common bits of the IOT2050 Basic variant, PG1 and PG2
  */
 
+#include "k3-am652.dtsi"
 #include "k3-am65-iot2050-common.dtsi"
 
 / {
@@ -17,16 +18,6 @@ memory@80000000 {
 		/* 1G RAM */
 		reg = <0x00000000 0x80000000 0x00000000 0x40000000>;
 	};
-
-	cpus {
-		cpu-map {
-			/delete-node/ cluster1;
-		};
-		/delete-node/ cpu@100;
-		/delete-node/ cpu@101;
-	};
-
-	/delete-node/ l2-cache1;
 };
 
 /* eMMC */
diff --git a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-common.dtsi b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-common.dtsi
index be55494b1f3fc..ff2fdc2e12e3c 100644
--- a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-common.dtsi
@@ -11,6 +11,7 @@
 
 /dts-v1/;
 
+#include "k3-am654.dtsi"
 #include "k3-am65-iot2050-common.dtsi"
 
 / {
-- 
2.39.2

Re: [PATCH v2] arm64: dts: ti: k3-am65: Add AM652 DTSI file

[Nishanth Menon]

Hi Andrew Davis,

On Tue, 05 Dec 2023 10:23:58 -0600, Andrew Davis wrote:
> The AM652 is basically a AM654 but with 2 cores instead of 4. Add
> a DTSI file for AM652 matching AM654 except this core difference.
> 
> This removes the need to remove the extra cores from AM654 manually
> in DT files for boards that use the AM652 variant. Do that for
> the IOT2050 boards here.
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/1] arm64: dts: ti: k3-am65: Add AM652 DTSI file
      commit: fcb97d190c3ca411b37d8dd0b2650fa1378f08d4

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D