linux-kernel - [PATCH 3/8] arm64: dts: ti: Enable CSI-RX on AM62A

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Message-ID: <20231115-csi_dts-v1-3-99fc535b2bde@ti.com>
Date:   Wed, 15 Nov 2023 15:21:11 +0530
From:   Jai Luthra <j-luthra@...com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Aradhya Bhatia <a-bhatia1@...com>,
        Devarsh Thakkar <devarsht@...com>,
        Vaishnav Achath <vaishnav.a@...com>,
        Julien Massot <julien.massot@...labora.com>,
        Martyn Welch <martyn.welch@...labora.com>,
        Jai Luthra <j-luthra@...com>
Subject: [PATCH 3/8] arm64: dts: ti: Enable CSI-RX on AM62A

Add nodes for Cadence DPHY, CSI2RX and TI's pixel-grabbing wrapper.
AM62A uses a dedicated BCDMA instance for CSI-RX traffic, so enable that
as well.

Signed-off-by: Jai Luthra <j-luthra@...com>
---
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 99 +++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index 4ae7fdc5221b..ea70d78eb132 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -144,6 +144,44 @@ main_pktdma: dma-controller@...c0000 {
 		};
 	};
 
+	dmss_csi: bus@...00000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		dma-ranges;
+		ranges = <0x00 0x4e000000 0x00 0x4e000000 0x00 0x300000>;
+
+		ti,sci-dev-id = <198>;
+
+		inta_main_dmss_csi: interrupt-controller@...a0000 {
+			compatible = "ti,sci-inta";
+			reg = <0x00 0x4e0a0000 0x00 0x8000>;
+			#interrupt-cells = <0>;
+			interrupt-controller;
+			interrupt-parent = <&gic500>;
+			msi-controller;
+			ti,sci = <&dmsc>;
+			ti,sci-dev-id = <200>;
+			ti,interrupt-ranges = <0 237 8>;
+			ti,unmapped-event-sources = <&main_bcdma_csi>;
+			power-domains = <&k3_pds 182 TI_SCI_PD_EXCLUSIVE>;
+		};
+
+		main_bcdma_csi: dma-controller@...30000 {
+			compatible = "ti,am62a-dmss-bcdma-csirx";
+			reg = <0x00 0x4e230000 0x00 0x100>,
+			      <0x00 0x4e180000 0x00 0x8000>,
+			      <0x00 0x4e100000 0x00 0x10000>;
+			reg-names = "gcfg", "rchanrt", "ringrt";
+			msi-parent = <&inta_main_dmss_csi>;
+			#dma-cells = <3>;
+			ti,sci = <&dmsc>;
+			ti,sci-dev-id = <199>;
+			ti,sci-rm-range-rchan = <0x21>;
+			power-domains = <&k3_pds 182 TI_SCI_PD_EXCLUSIVE>;
+		};
+	};
+
 	dmsc: system-controller@...43000 {
 		compatible = "ti,k2g-sci";
 		reg = <0x00 0x44043000 0x00 0xfe0>;
@@ -876,4 +914,65 @@ mcasp2: audio-controller@...0000 {
 		power-domains = <&k3_pds 192 TI_SCI_PD_EXCLUSIVE>;
 		status = "disabled";
 	};
+
+	ti_csi2rx0: ticsi2rx@...02000 {
+		compatible = "ti,j721e-csi2rx-shim";
+		dmas = <&main_bcdma_csi 0 0x5000 0>;
+		dma-names = "rx0";
+		reg = <0x00 0x30102000 0x00 0x1000>;
+		power-domains = <&k3_pds 182 TI_SCI_PD_EXCLUSIVE>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		status = "disabled";
+
+		cdns_csi2rx0: csi-bridge@...01000 {
+			compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
+			reg = <0x00 0x30101000 0x00 0x1000>;
+			clocks = <&k3_clks 182 0>, <&k3_clks 182 3>, <&k3_clks 182 0>,
+				<&k3_clks 182 0>, <&k3_clks 182 4>, <&k3_clks 182 4>;
+			clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
+				"pixel_if1_clk", "pixel_if2_clk", "pixel_if3_clk";
+			phys = <&dphy0>;
+			phy-names = "dphy";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				csi0_port0: port@0 {
+					reg = <0>;
+					status = "disabled";
+				};
+
+				csi0_port1: port@1 {
+					reg = <1>;
+					status = "disabled";
+				};
+
+				csi0_port2: port@2 {
+					reg = <2>;
+					status = "disabled";
+				};
+
+				csi0_port3: port@3 {
+					reg = <3>;
+					status = "disabled";
+				};
+
+				csi0_port4: port@4 {
+					reg = <4>;
+					status = "disabled";
+				};
+			};
+		};
+	};
+
+	dphy0: phy@...10000 {
+		compatible = "cdns,dphy-rx";
+		reg = <0x00 0x30110000 0x00 0x1100>;
+		#phy-cells = <0>;
+		power-domains = <&k3_pds 185 TI_SCI_PD_EXCLUSIVE>;
+		status = "disabled";
+	};
 };

-- 
2.42.1