From 9e4030a47786b7695f88758e745f6b5a3e2e71f3 Mon Sep 17 00:00:00 2001
From: Aaron Kling <webgeek1234@gmail.com>
Date: Thu, 8 May 2025 23:56:33 -0500
Subject: [PATCH] WIP: arm64: tegra: Enable XUSB controller on P2894

TODO: Correct otg connector for full size A port

Enable the XUSB controller on P2894. One of the USB 3.0 lanes goes to a
switchable USB-A port, while the second USB 3.0 lane supports the normal
USB-A port.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
---
 .../arm64/boot/dts/nvidia/tegra210-p2894.dtsi | 124 ++++++++++++++++++
 1 file changed, 124 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2894.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2894.dtsi
index 24d4229a0e52..9a88123c9bea 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2894.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2894.dtsi
@@ -1604,6 +1604,122 @@
 		status = "okay";
 	};
 
+	usb@70090000 {
+		phys = <&{/padctl@7009f000/pads/usb2/lanes/usb2-0}>,
+		       <&{/padctl@7009f000/pads/usb2/lanes/usb2-2}>,
+		       <&{/padctl@7009f000/pads/pcie/lanes/pcie-6}>,
+		       <&{/padctl@7009f000/pads/pcie/lanes/pcie-5}>;
+		phy-names = "usb2-0", "usb2-2", "usb3-0", "usb3-1";
+		dvddio-pex-supply = <&max77620_ldo1>;
+		hvddio-pex-supply = <&max77620_sd3>;
+		avdd-usb-supply = <&vdd_3v3>;
+
+		status = "okay";
+	};
+
+	padctl@7009f000 {
+		status = "okay";
+
+		avdd-pll-utmip-supply = <&max77620_sd3>;
+		avdd-pll-uerefe-supply = <&max77620_ldo7>;
+		dvdd-pex-pll-supply = <&max77620_ldo1>;
+		hvdd-pex-pll-e-supply = <&max77620_sd3>;
+
+		pads {
+			usb2 {
+				status = "okay";
+
+				lanes {
+					micro_b: usb2-0 {
+						nvidia,function = "xusb";
+						status = "okay";
+					};
+
+					usb2-2 {
+						nvidia,function = "xusb";
+						status = "okay";
+					};
+				};
+			};
+
+			pcie {
+				status = "okay";
+
+				lanes {
+					pcie-0 {
+						nvidia,function = "pcie-x1";
+						status = "okay";
+					};
+
+					pcie-1 {
+						nvidia,function = "pcie-x4";
+						status = "okay";
+					};
+
+					pcie-2 {
+						nvidia,function = "pcie-x4";
+						status = "okay";
+					};
+
+					pcie-3 {
+						nvidia,function = "pcie-x4";
+						status = "okay";
+					};
+
+					pcie-4 {
+						nvidia,function = "pcie-x4";
+						status = "okay";
+					};
+
+					pcie-5 {
+						nvidia,function = "usb3-ss";
+						status = "okay";
+					};
+
+					pcie-6 {
+						nvidia,function = "usb3-ss";
+						status = "okay";
+					};
+				};
+			};
+		};
+
+		ports {
+			usb2-0 {
+				status = "okay";
+				vbus-supply = <&usb_vbus1>;
+				usb-role-switch;
+				mode = "otg";
+
+				connector {
+					compatible = "gpio-usb-b-connector",
+						     "usb-b-connector";
+					label = "micro-USB";
+					type = "micro";
+					vbus-gpios = <&gpio TEGRA_GPIO(Z, 0)
+						      GPIO_ACTIVE_LOW>;
+					id-gpios = <&pmic 0 GPIO_ACTIVE_HIGH>;
+				};
+			};
+
+			usb2-2 {
+				status = "okay";
+				vbus-supply = <&usb_vbus2>;
+				mode = "host";
+			};
+
+			usb3-0 {
+				nvidia,usb2-companion = <0>;
+				status = "okay";
+			};
+
+			usb3-1 {
+				nvidia,usb2-companion = <2>;
+				status = "okay";
+			};
+		};
+	};
+
 	mmc@700b0200 {
 		status = "okay";
 		bus-width = <4>;
@@ -1629,6 +1745,14 @@
 		status = "okay";
 	};
 
+	usb@700d0000 {
+		status = "okay";
+		phys = <&micro_b>;
+		phy-names = "usb2-0";
+		avddio-usb-supply = <&max77620_ldo1>;
+		hvdd-usb-supply = <&vdd_3v3>;
+	};
+
 	clk32k_in: clock-32k {
 		compatible = "fixed-clock";
 		clock-frequency = <32768>;