linux-kernel - [PATCH 4/4] arm64: dts: ti: k3-j784s4-main: Switch MAIN R5F clusters to Split-mode

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Message-ID: <20240503062414.804209-5-b-padhi@ti.com>
Date: Fri, 3 May 2024 11:54:14 +0530
From: Beleswar Padhi <b-padhi@...com>
To: <nm@...com>
CC: <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <u-kumar1@...com>, <s-anna@...com>,
        <hnagalla@...com>
Subject: [PATCH 4/4] arm64: dts: ti: k3-j784s4-main: Switch MAIN R5F clusters to Split-mode

From: Apurva Nandan <a-nandan@...com>

J784S4 SoCs have three R5F clusters in the MAIN domain, and all of
these are configured for LockStep mode at the moment. Switch both
of these R5F clusters to Split mode by default to maximize the number
of R5F cores. The MCU R5F cluster continues to be in the preferred
LockStep mode.

Note that this configuration is the default for remoteproc mode (kernel
driver boots the R5F processors). These will be overridden for early-booted
remoteprocs through the corresponding IPC-only support in the K3 R5F
remoteproc driver.

Signed-off-by: Apurva Nandan <a-nandan@...com>
---
 arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
index 6a4554c6c9c1..fa4a1008a587 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
@@ -1811,7 +1811,7 @@ ufs@...4000 {
 
 	main_r5fss0: r5fss@...0000 {
 		compatible = "ti,j721s2-r5fss";
-		ti,cluster-mode = <1>;
+		ti,cluster-mode = <0>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges = <0x5c00000 0x00 0x5c00000 0x20000>,
@@ -1851,7 +1851,7 @@ main_r5fss0_core1: r5f@...0000 {
 
 	main_r5fss1: r5fss@...0000 {
 		compatible = "ti,j721s2-r5fss";
-		ti,cluster-mode = <1>;
+		ti,cluster-mode = <0>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges = <0x5e00000 0x00 0x5e00000 0x20000>,
@@ -1891,7 +1891,7 @@ main_r5fss1_core1: r5f@...0000 {
 
 	main_r5fss2: r5fss@...0000 {
 		compatible = "ti,j721s2-r5fss";
-		ti,cluster-mode = <1>;
+		ti,cluster-mode = <0>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges = <0x5900000 0x00 0x5900000 0x20000>,
-- 
2.34.1