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arm64: tegra: Add xudc node for Tegra210

PATCH New Thierry Reding 1 participant 1 message Feb 4, 2019 USB

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PATCH 4/8 arm64: tegra: Add xudc node for Tegra210

Quoted 13 lines · Nagarjuna Kristam

Tegra210 has one XUSB device mode controller, which can be operated HS and SS modes. Add DT support for XUSB device mode controller.

---
 arch/arm64/boot/dts/nvidia/tegra210.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
arch/arm64/boot/dts/nvidia/tegra210.dtsi +0 -0
index 8fe47d6..e34a865 100644

arch/arm64/boot/dts/nvidia/tegra210.dtsi line 893

Quoted 9 lines
arch/arm64/boot/dts/nvidia/tegra210.dtsi +6 -0
@@ -885,6 +885,23 @@
 		status = "disabled";
 	};
 
+	xudc@700d0000 {
+		compatible = "nvidia,tegra210-xudc";
+		reg = <0x0 0x700d0000 0x0 0x8000>,
+			<0x0 0x700d8000 0x0 0x1000>,
+			<0x0 0x700d9000 0x0 0x1000>;
+		interrupts = <0 44 0x4>;

GIC_SPI for the first cell, IRQ_TYPE_LEVEL_HIGH for the third cell.

arch/arm64/boot/dts/nvidia/tegra210.dtsi line 900

Quoted 7 lines
arch/arm64/boot/dts/nvidia/tegra210.dtsi +7 -0
+		power-domains = <&pd_xusbdev>, <&pd_xusbss>;
+		power-domain-names = "xusb_device", "xusb_ss";
+		clocks = <&tegra_car TEGRA210_CLK_XUSB_DEV>,
+			<&tegra_car TEGRA210_CLK_XUSB_SS>,
+			<&tegra_car TEGRA210_CLK_XUSB_SSP_SRC>,
+			<&tegra_car TEGRA210_CLK_XUSB_HS_SRC>,
+			<&tegra_car TEGRA210_CLK_XUSB_FS_SRC>;

I think it's slightly more idiomatic to have clocks before the power domains. Also this should have a clock-names property that names the clocks.

Other than that, this looks good to me.

Thierry

Quoted 10 lines
arch/arm64/boot/dts/nvidia/tegra210.dtsi +4 -0
+		nvidia,xusb-padctl = <&padctl>;
+		status = "disabled";
+	};
+
 	padctl: padctl@7009f000 {
 		compatible = "nvidia,tegra210-xusb-padctl";
 		reg = <0x0 0x7009f000 0x0 0x1000>;
Signature · 1 line
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