[PATCH v2 3/3] arm64: dts: ti: k3-j722s: Add wakeup domain peripherals specific to J722S

Richard Genoud (TI)
2026-04-27T14:29:40Z

Introduce the "k3-j722s-mcu.dtsi" file to contain wakeup domain peripherals
that are specific to J722S SoC and are not shared with AM62P.
Previously, those nodes were squatting the k3-j722s-main.dtsi file which
should contain only main domain peripherals.

Signed-off-by: Richard Genoud (TI) <richard.genoud@bootlin.com>
---
arch/arm64/boot/dts/ti/k3-j722s-main.dtsi | 14 --------------
arch/arm64/boot/dts/ti/k3-j722s-wakeup.dtsi | 18 ++++++++++++++++++
arch/arm64/boot/dts/ti/k3-j722s.dtsi | 1 +
3 files changed, 19 insertions(+), 14 deletions(-)
create mode 100644 arch/arm64/boot/dts/ti/k3-j722s-wakeup.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
index 2a8aba13bd73..d1dbf1e24fbf 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
@@ -430,13 +430,6 @@ &main_bcdma_csi {
ti,sci-rm-range-tchan = <0x22>;
};

-/* Wakeup domain overrides */
-
-&wkup_r5fss0_core0 {
- firmware-name = "j722s-wkup-r5f0_0-fw";
-};
-
-/* MAIN domain overrides */
&hsm {
firmware-name = "j722s-hsm-m4f-fw";
};
@@ -451,13 +444,6 @@ serdes_ln_ctrl: mux-controller@4080 {
};
};

-&wkup_conf {
- pcie0_ctrl: pcie0-ctrl@4070 {
- compatible = "ti,j784s4-pcie-ctrl", "syscon";
- reg = <0x4070 0x4>;
- };
-};
-
&oc_sram {
reg = <0x00 0x70000000 0x00 0x40000>;
ranges = <0x00 0x00 0x70000000 0x40000>;
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-wakeup.dtsi
new file mode 100644
index 000000000000..1297813f4829
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j722s-wakeup.dtsi
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Device Tree file for the J722S WAKEUP domain peripherals
+ *
+ * Copyright (C) 2026 Texas Instruments Incorporated - https://www.ti.com/
+ * Copyright (C) 2026 Bootlin
+ */
+
+&wkup_conf {
+ pcie0_ctrl: pcie0-ctrl@4070 {
+ compatible = "ti,j784s4-pcie-ctrl", "syscon";
+ reg = <0x4070 0x4>;
+ };
+};
+
+&wkup_r5fss0_core0 {
+ firmware-name = "j722s-wkup-r5f0_0-fw";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j722s.dtsi b/arch/arm64/boot/dts/ti/k3-j722s.dtsi
index ad477dd66963..ca10c6904b69 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j722s.dtsi
@@ -239,3 +239,4 @@ cbass_wakeup: bus@b00000 {
/* Include J722S specific peripherals */
#include "k3-j722s-main.dtsi"
#include "k3-j722s-mcu.dtsi"
+#include "k3-j722s-wakeup.dtsi"