linux-kernel - [PATCH v2 6/6] riscv: dts: allwinner: d1: Add the IOMMU node

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Message-Id: <20230103010903.11181-7-samuel@sholland.org>
Date:   Mon,  2 Jan 2023 19:09:03 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Maxime Ripard <mripard@...nel.org>,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH v2 6/6] riscv: dts: allwinner: d1: Add the IOMMU node

D1 contains an IOMMU for its video-related hardware. Add the node, and
hook it up to the masters which are already described in the devicetree.

Signed-off-by: Samuel Holland <samuel@...lland.org>
---

Changes in v2:
 - New patch for v2

 arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
index dff363a3c934..ade50f1e01a4 100644
--- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
+++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
@@ -138,6 +138,14 @@ ccu: clock-controller@...1000 {
 			#reset-cells = <1>;
 		};
 
+		iommu: iommu@...0000 {
+			compatible = "allwinner,sun20i-d1-iommu";
+			reg = <0x2010000 0x10000>;
+			interrupts = <SOC_PERIPHERAL_IRQ(64) IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_IOMMU>;
+			#iommu-cells = <1>;
+		};
+
 		dmic: dmic@...1000 {
 			compatible = "allwinner,sun20i-d1-dmic",
 				     "allwinner,sun50i-h6-dmic";
@@ -574,6 +582,7 @@ mixer0: mixer@...0000 {
 				 <&display_clocks CLK_MIXER0>;
 			clock-names = "bus", "mod";
 			resets = <&display_clocks RST_MIXER0>;
+			iommus = <&iommu 2>;
 
 			ports {
 				#address-cells = <1>;
@@ -596,6 +605,7 @@ mixer1: mixer@...0000 {
 				 <&display_clocks CLK_MIXER1>;
 			clock-names = "bus", "mod";
 			resets = <&display_clocks RST_MIXER1>;
+			iommus = <&iommu 2>;
 
 			ports {
 				#address-cells = <1>;
-- 
2.37.4