linux-kernel - [PATCH] arm64: dts: mediatek: mt8188-geralt: Enable first SCP core

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Message-ID: <20250812085902.3309160-1-wenst@chromium.org>
Date: Tue, 12 Aug 2025 16:59:00 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Chen-Yu Tsai <wenst@...omium.org>,
	linux-mediatek@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH] arm64: dts: mediatek: mt8188-geralt: Enable first SCP core

The first SCP core is used to drive the video decoder and encoders.

Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
---
 arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi b/arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi
index c5254ae0bb99..10764786bc21 100644
--- a/arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi
@@ -164,6 +164,12 @@ reserved_memory: reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
+		scp_mem_reserved: memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x50000000 0 0x800000>;
+			no-map;
+		};
+
 		apu_mem: memory@...00000 {
 			compatible = "shared-dma-pool";
 			reg = <0 0x55000000 0 0x1400000>;
@@ -1146,6 +1152,16 @@ &postmask0_out {
 	remote-endpoint = <&dither0_in>;
 };
 
+&scp_cluster {
+	status = "okay";
+};
+
+&scp_c0 {
+	firmware-name = "mediatek/mt8188/scp.img";
+	memory-region = <&scp_mem_reserved>;
+	status = "okay";
+};
+
 &sound {
 	pinctrl-names = "aud_etdm_hp_on", "aud_etdm_hp_off",
 			"aud_etdm_spk_on", "aud_etdm_spk_off",
-- 
2.51.0.rc0.215.g125493bb4a-goog