arm64: tegra: Enable XUSB controller on P2894

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.

The padctl layout is different between the Tegra210 and Tegra210B01
variants. The latter is overridden in the device specific dts.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>

arch/arm64/boot/dts/nvidia/tegra210-p2894.dtsi

@@ -1590,12 +1590,128 @@
 		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 {
+					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;
+				role-switch-default-mode = "peripheral";
+				mode = "otg";
+			};
+
+			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@700b0600 {
 		bus-width = <8>;
 		non-removable;
 		status = "okay";
 	};
 
+	usb@700d0000 {
+		status = "okay";
+		phys = <&{/padctl@7009f000/pads/usb2/lanes/usb2-0}>,
+		       <&{/padctl@7009f000/pads/pcie/lanes/pcie-6}>;
+		phy-names = "usb2-0", "usb3-0";
+		avddio-usb-supply = <&max77620_ldo1>;
+		hvdd-usb-supply = <&vdd_3v3>;
+	};
+
 	clk32k_in: clock-32k {
 		compatible = "fixed-clock";
 		clock-frequency = <32768>;

arch/arm64/boot/dts/nvidia/tegra210b01-p2894-2551-b00.dts

@@ -44,4 +44,43 @@
 			};
 		};
 	};
+
+	usb@70090000 {
+		phys = <&{/padctl@7009f000/pads/usb2/lanes/usb2-0}>,
+		       <&{/padctl@7009f000/pads/usb2/lanes/usb2-2}>,
+		       <&{/padctl@7009f000/pads/pcie/lanes/pcie-5}>,
+		       <&{/padctl@7009f000/pads/pcie/lanes/pcie-4}>;
+		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 {
+		pads {
+			pcie {
+				lanes {
+					pcie-1 {
+						nvidia,function = "usb3-ss";
+					};
+
+					pcie-4 {
+						nvidia,function = "usb3-ss";
+					};
+
+					pcie-6 {
+						/delete-property/ nvidia,function;
+						status = "disabled";
+					};
+				};
+			};
+		};
+	};
+
+	usb@700d0000 {
+		phys = <&{/padctl@7009f000/pads/usb2/lanes/usb2-0}>,
+		       <&{/padctl@7009f000/pads/pcie/lanes/pcie-5}>;
+	};
 };