linux-kernel - [PATCH v9 7/7] arm64: dts: mt8183: add scp node

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Date:   Fri, 31 May 2019 15:38:48 +0800
From:   Pi-Hsun Shih <pihsun@...omium.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Pi-Hsun Shih <pihsun@...omium.org>,
        Eddie Huang <eddie.huang@...iatek.com>,
        Erin Lo <erin.lo@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Mediatek SoC
        support),
        linux-mediatek@...ts.infradead.org (moderated list:ARM/Mediatek SoC
        support), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v9 7/7] arm64: dts: mt8183: add scp node

From: Eddie Huang <eddie.huang@...iatek.com>

Add scp node to mt8183 and mt8183-evb

Signed-off-by: Erin Lo <erin.lo@...iatek.com>
Signed-off-by: Pi-Hsun Shih <pihsun@...omium.org>
---
Changes from v8:
 - New patch.
---
 arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 18 ++++++++++++++++++
 arch/arm64/boot/dts/mediatek/mt8183.dtsi    | 12 ++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
index d8e555cbb5d3..8dd74d7aefdb 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts
@@ -24,6 +24,24 @@
 	chosen {
 		stdout-path = "serial0:921600n8";
 	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		reserve-memory-vpu_share {
+			compatible = "mediatek,reserve-memory-vpu_share";
+			no-map;
+			size = <0 0x01400000>; /* 20 MB share mem size */
+			alignment = <0 0x1000000>;
+			alloc-ranges = <0 0x50000000 0 0x10000000>;
+		};
+		scp_mem_reserved: scp_mem_region {
+			compatible = "shared-dma-pool";
+			reg = <0 0x50000000 0 0x2900000>;
+			no-map;
+		};
+	};
 };
 
 &auxadc {
diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index c2749c4631bc..133146b52904 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -254,6 +254,18 @@
 			clock-names = "spi", "wrap";
 		};
 
+		scp: scp@...00000 {
+			compatible = "mediatek,mt8183-scp";
+			reg = <0 0x10500000 0 0x80000>,
+			      <0 0x105c0000 0 0x5000>;
+			reg-names = "sram", "cfg";
+			interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&infracfg CLK_INFRA_SCPSYS>;
+			clock-names = "main";
+			memory-region = <&scp_mem_reserved>;
+			status = "disabled";
+		};
+
 		auxadc: auxadc@...01000 {
 			compatible = "mediatek,mt8183-auxadc",
 				     "mediatek,mt8173-auxadc";
-- 
2.22.0.rc1.257.g3120a18244-goog