linux-kernel - [PATCH 2/2] arm64: dts: ti: k3: Switch MCU R5F cluster to Split-mode

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Message-ID: <20250522073426.329344-3-b-padhi@ti.com>
Date: Thu, 22 May 2025 13:04:26 +0530
From: Beleswar Padhi <b-padhi@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>
CC: <afd@...com>, <u-kumar1@...com>, <hnagalla@...com>, <jm@...com>,
        <b-padhi@...com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 2/2] arm64: dts: ti: k3: Switch MCU R5F cluster to Split-mode

Several TI K3 SoCs like J7200, J721E, J721S2, J784S4 and J742S2 have a
R5F cluster in the MCU domain which is configured for LockStep mode at
the moment. Switch this R5F cluster to Split mode by default in all
corresponding board level DTs to maximize the number of R5F cores.

Signed-off-by: Beleswar Padhi <b-padhi@...com>
---
 arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi              | 4 ++++
 arch/arm64/boot/dts/ti/k3-am69-sk.dts                   | 4 ++++
 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi             | 4 ++++
 arch/arm64/boot/dts/ti/k3-j721e-sk.dts                  | 4 ++++
 arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi             | 4 ++++
 arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi            | 4 ++++
 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi | 4 ++++
 7 files changed, 28 insertions(+)

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..fe3dc035c067 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
@@ -303,6 +303,10 @@ &mcu_r5fss0_core1 {
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&mcu_r5fss0 {
+	ti,cluster-mode = <0>;
+};
+
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index f28375629739..57404882cc89 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -992,6 +992,10 @@ &mcu_r5fss0_core1 {
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&mcu_r5fss0 {
+	ti,cluster-mode = <0>;
+};
+
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
 };
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..7c3899d608b8 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
@@ -266,6 +266,10 @@ &mcu_r5fss0_core1 {
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&mcu_r5fss0 {
+	ti,cluster-mode = <0>;
+};
+
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index ffef3d1cfd55..2b26471a9181 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -1361,6 +1361,10 @@ &mcu_r5fss0_core1 {
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&mcu_r5fss0 {
+	ti,cluster-mode = <0>;
+};
+
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
 };
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..72fd5d39e145 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
@@ -566,6 +566,10 @@ &mcu_r5fss0_core1 {
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&mcu_r5fss0 {
+	ti,cluster-mode = <0>;
+};
+
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
 };
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 54fc5c4f8c3f..2d420041c0e5 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
@@ -560,6 +560,10 @@ &mcu_r5fss0_core1 {
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&mcu_r5fss0 {
+	ti,cluster-mode = <0>;
+};
+
 &main_r5fss0 {
 	ti,cluster-mode = <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 fa656b7b13a1..0d45ca9d92e2 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
@@ -1122,6 +1122,10 @@ &mcu_r5fss0_core1 {
 			<&mcu_r5fss0_core1_memory_region>;
 };
 
+&mcu_r5fss0 {
+	ti,cluster-mode = <0>;
+};
+
 &main_r5fss0 {
 	ti,cluster-mode = <0>;
 };
-- 
2.34.1