[PATCH v2 2/3] arm64: dts: ti: k3-j722s: Add mcu domain peripherals specific to J722S

Richard Genoud (TI)
2026-04-27T14:29:39Z

Introduce the "k3-j722s-mcu.dtsi" file to contain mcu 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 | 10 ----------
arch/arm64/boot/dts/ti/k3-j722s-mcu.dtsi | 15 +++++++++++++++
arch/arm64/boot/dts/ti/k3-j722s.dtsi | 1 +
3 files changed, 16 insertions(+), 10 deletions(-)
create mode 100644 arch/arm64/boot/dts/ti/k3-j722s-mcu.dtsi

diff --git a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
index d14caa9d8619..2a8aba13bd73 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
@@ -430,16 +430,6 @@ &main_bcdma_csi {
ti,sci-rm-range-tchan = <0x22>;
};

-/* MCU domain overrides */
-
-&mcu_pmx0 {
- compatible = "ti,j7200-padconf", "pinctrl-single";
-};
-
-&mcu_r5fss0_core0 {
- firmware-name = "j722s-mcu-r5f0_0-fw";
-};
-
/* Wakeup domain overrides */

&wkup_r5fss0_core0 {
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-mcu.dtsi
new file mode 100644
index 000000000000..ab43a7e49f37
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j722s-mcu.dtsi
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Device Tree file for the J722S MCU domain peripherals
+ *
+ * Copyright (C) 2026 Texas Instruments Incorporated - https://www.ti.com/
+ * Copyright (C) 2026 Bootlin
+ */
+
+&mcu_pmx0 {
+ compatible = "ti,j7200-padconf", "pinctrl-single";
+};
+
+&mcu_r5fss0_core0 {
+ firmware-name = "j722s-mcu-r5f0_0-fw";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j722s.dtsi b/arch/arm64/boot/dts/ti/k3-j722s.dtsi
index 1b36dcf37925..ad477dd66963 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j722s.dtsi
@@ -238,3 +238,4 @@ cbass_wakeup: bus@b00000 {

/* Include J722S specific peripherals */
#include "k3-j722s-main.dtsi"
+#include "k3-j722s-mcu.dtsi"