linux-kernel - [PATCH 3/5] arm64: dts: mediatek: mt8195-demo: update and reorder reserved memory regions

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Message-Id: <20231003-mediatek-fixes-v6-7-v1-3-dad7cd62a8ff@collabora.com>
Date:   Tue, 03 Oct 2023 13:13:45 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Fabien Parent <fparent@...libre.com>,
        Miles Chen <miles.chen@...iatek.com>,
        Macpaul Lin <macpaul.lin@...iatek.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Sam Shih <sam.shih@...iatek.com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Jieyy Yang <jieyy.yang@...iatek.com>,
        Tinghan Shen <tinghan.shen@...iatek.com>,
        Seiya Wang <seiya.wang@...iatek.com>, soc@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        stable@...r.kernel.org
Subject: [PATCH 3/5] arm64: dts: mediatek: mt8195-demo: update and reorder
 reserved memory regions

From: Macpaul Lin <macpaul.lin@...iatek.com>

The dts file of the MediaTek MT8195 demo board has been updated to include
new reserved memory regions.
These reserved memory regions are:
 - SCP
 - VPU,
 - Sound DMA
 - APU.

These regions are defined with the "shared-dma-pool" compatible property.
In addition, the existing reserved memory regions have been reordered by
their addresses to improve readability and maintainability of the DTS
file.

Cc: stable@...r.kernel.org      # 6.1, 6.4, 6.5
Fixes: e4a417520101 ("arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon")
Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Link: https://lore.kernel.org/r/20230905034511.11232-2-macpaul.lin@mediatek.com
---
 arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 37 ++++++++++++++++++++++------
 1 file changed, 30 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
index ff363ab925e9..5d635085fe3f 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
@@ -56,13 +56,8 @@ reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
-		/* 2 MiB reserved for ARM Trusted Firmware (BL31) */
-		bl31_secmon_reserved: secmon@...00000 {
-			no-map;
-			reg = <0 0x54600000 0x0 0x200000>;
-		};
-
-		/* 12 MiB reserved for OP-TEE (BL32)
+		/*
+		 * 12 MiB reserved for OP-TEE (BL32)
 		 * +-----------------------+ 0x43e0_0000
 		 * |      SHMEM 2MiB       |
 		 * +-----------------------+ 0x43c0_0000
@@ -75,6 +70,34 @@ optee_reserved: optee@...00000 {
 			no-map;
 			reg = <0 0x43200000 0 0x00c00000>;
 		};
+
+		scp_mem: memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x50000000 0 0x2900000>;
+			no-map;
+		};
+
+		vpu_mem: memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x53000000 0 0x1400000>; /* 20 MB */
+		};
+
+		/* 2 MiB reserved for ARM Trusted Firmware (BL31) */
+		bl31_secmon_mem: memory@...00000 {
+			no-map;
+			reg = <0 0x54600000 0x0 0x200000>;
+		};
+
+		snd_dma_mem: memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x60000000 0 0x1100000>;
+			no-map;
+		};
+
+		apu_mem: memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x62000000 0 0x1400000>; /* 20 MB */
+		};
 	};
 };
 

-- 
2.42.0