linux-kernel - [PATCH v2 5/5] arm64: dts: ti: k3-j721s2: disable "mcu_cpsw" in SoC file and enable in board files

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Message-ID: <20250611114336.2392320-6-s-vadapalli@ti.com>
Date: Wed, 11 Jun 2025 17:13:36 +0530
From: Siddharth Vadapalli <s-vadapalli@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <srk@...com>,
        <s-vadapalli@...com>
Subject: [PATCH v2 5/5] arm64: dts: ti: k3-j721s2: disable "mcu_cpsw" in SoC file and enable in board files

Following the existing convention of disabling nodes in the SoC file and
enabling only the required ones in the board file, disable "mcu_cpsw" node
in the SoC file "k3-j721s2-mcu-wakeup.dtsi" and enable it in the board
files:
a) k3-am68-sk-base-board.dts
b) k3-j721s2-common-proc-board.dts

Signed-off-by: Siddharth Vadapalli <s-vadapalli@...com>
---

v1 of this patch was 2 different patches which have currently been
squashed:
 https://lore.kernel.org/r/20250529133443.1252293-13-s-vadapalli@ti.com/
 https://lore.kernel.org/r/20250529133443.1252293-14-s-vadapalli@ti.com/

In addition to squashing the patches and updating the commit message,
"mcu_cpsw" has been enabled in "k3-am68-sk-base-board.dts" as well,
since it uses the SoC file of J721S2.

Regards,
Siddharth.

 arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts       | 1 +
 arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts | 1 +
 arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi       | 2 ++
 3 files changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
index 5fa70a874d7b..893b730911e8 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
@@ -619,6 +619,7 @@ &main_sdhci1 {
 };
 
 &mcu_cpsw {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_cpsw_pins_default>, <&mcu_mdio_pins_default>;
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
index e2fc1288ed07..a482b3ad5095 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
@@ -409,6 +409,7 @@ &main_sdhci1 {
 };
 
 &mcu_cpsw {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_cpsw_pins_default>, <&mcu_mdio_pins_default>;
 };
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..b5fd012d9564 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -552,6 +552,8 @@ mcu_cpsw: ethernet@...00000 {
 			    "tx4", "tx5", "tx6", "tx7",
 			    "rx";
 
+		status = "disabled";
+
 		ethernet-ports {
 			#address-cells = <1>;
 			#size-cells = <0>;
-- 
2.34.1