linux-kernel - [PATCH 21/33] arm64: dts: ti: k3-am62: Enable remote processors at board level

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Message-ID: <20250814223839.3256046-22-b-padhi@ti.com>
Date: Fri, 15 Aug 2025 04:08:27 +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 21/33] arm64: dts: ti: k3-am62: Enable remote processors at board level

Remote Processors defined in top-level AM62x SoC dtsi files are
incomplete without the memory carveouts and mailbox assignments which
are only known at board integration level.

Therefore, disable the remote processors at SoC level and enable them at
board level where above information is available.

Signed-off-by: Beleswar Padhi <b-padhi@...com>
---
 arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi | 1 +
 arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi      | 1 +
 arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi  | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
index 10e6b5c08619..dcd22ff487ec 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
@@ -407,4 +407,5 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
index 6549b7efa656..75aed3a88284 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
@@ -128,6 +128,7 @@ wkup_r5fss0_core0: r5f@...00000 {
 			ti,sci = <&dmsc>;
 			ti,sci-dev-id = <121>;
 			ti,sci-proc-ids = <0x01 0xff>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 43ee16f171fd..03b8e246d8c2 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -506,6 +506,7 @@ &wkup_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
 	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
 			<&wkup_r5fss0_core0_memory_region>;
+	status = "okay";
 };
 
 &usbss0 {
-- 
2.34.1