linux-kernel - [PATCH v4 23/34] arm64: dts: ti: k3-j721e-beagleboneai64: Switch MAIN R5F clusters to Split-mode

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Message-ID: <20250908142826.1828676-24-b-padhi@ti.com>
Date: Mon, 8 Sep 2025 19:58:15 +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>,
        <d-gole@...com>, <b-padhi@...com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        Robert Nelson <robertcnelson@...il.com>
Subject: [PATCH v4 23/34] arm64: dts: ti: k3-j721e-beagleboneai64: Switch MAIN R5F clusters to Split-mode

Switch the MAIN domain R5F clusters into split mode to maximize the
number of R5F processors. The TI IPC firmware for the split processors
is already available public. This config aligns with other J721E boards
and can be refactored out later.

Signed-off-by: Beleswar Padhi <b-padhi@...com>
---
Cc: Robert Nelson <robertcnelson@...il.com>
Requesting for review/test of this patch.

v4: Changelog:
1. None

Link to v3:
https://lore.kernel.org/all/20250905051846.1189612-23-b-padhi@ti.com/

v3: Changelog:
1. None

Link to v2:
https://lore.kernel.org/all/20250823160901.2177841-23-b-padhi@ti.com/

v2: Changelog:
1. Split patch from [PATCH 06/33] to [PATCH v2 13/33] and [PATCH v2 22/33].
This patch switches the Main domain R5Fs into split mode.

Link to v1:
https://lore.kernel.org/all/20250814223839.3256046-7-b-padhi@ti.com/

 arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
index 92f5e4a14a49..3a7813c8770f 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
@@ -985,6 +985,7 @@ &mcu_r5fss0_core1 {
 };
 
 &main_r5fss0 {
+	ti,cluster-mode = <0>;
 	status = "okay";
 };
 
@@ -1003,6 +1004,7 @@ &main_r5fss0_core1 {
 };
 
 &main_r5fss1 {
+	ti,cluster-mode = <0>;
 	status = "okay";
 };
 
-- 
2.34.1