ARM: tegra: Enable XUSB on Nyan

Add XUSB pad controller and XUSB controller device tree nodes and enable
them with a configuration for the Nyan boards.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra124-nyan.dtsi

@@ -220,7 +220,7 @@ sd6 {
 					regulator-always-on;
 				};
 
-				ldo0 {
+				avdd_1v05_run: ldo0 {
 					regulator-name = "+1.05V_RUN_AVDD";
 					regulator-min-microvolt = <1050000>;
 					regulator-max-microvolt = <1050000>;
@@ -364,6 +364,99 @@ hda@0,70030000 {
 		status = "okay";
 	};
 
+	usb@0,70090000 {
+		phys = <&{/padctl@0,7009f000/pads/usb2/lanes/usb2-0}>, /* 1st USB A */
+		       <&{/padctl@0,7009f000/pads/usb2/lanes/usb2-1}>, /* Internal USB */
+		       <&{/padctl@0,7009f000/pads/usb2/lanes/usb2-2}>, /* 2nd USB A */
+		       <&{/padctl@0,7009f000/pads/pcie/lanes/pcie-0}>, /* 1st USB A */
+		       <&{/padctl@0,7009f000/pads/pcie/lanes/pcie-1}>; /* 2nd USB A */
+		phy-names = "usb2-0", "usb2-1", "usb2-2", "usb3-0", "usb3-1";
+
+		avddio-pex-supply = <&vdd_1v05_run>;
+		dvddio-pex-supply = <&vdd_1v05_run>;
+		avdd-usb-supply = <&vdd_3v3_lp0>;
+		avdd-pll-utmip-supply = <&vddio_1v8>;
+		avdd-pll-erefe-supply = <&avdd_1v05_run>;
+		avdd-usb-ss-pll-supply = <&vdd_1v05_run>;
+		hvdd-usb-ss-supply = <&vdd_3v3_lp0>;
+		hvdd-usb-ss-pll-e-supply = <&vdd_3v3_lp0>;
+
+		status = "okay";
+	};
+
+	padctl@0,7009f000 {
+		status = "okay";
+
+		pads {
+			usb2 {
+				status = "okay";
+
+				lanes {
+					usb2-0 {
+						nvidia,function = "xusb";
+						status = "okay";
+					};
+
+					usb2-1 {
+						nvidia,function = "xusb";
+						status = "okay";
+					};
+
+					usb2-2 {
+						nvidia,function = "xusb";
+						status = "okay";
+					};
+				};
+			};
+
+			pcie {
+				status = "okay";
+
+				lanes {
+					pcie-0 {
+						nvidia,function = "usb3-ss";
+						status = "okay";
+					};
+
+					pcie-1 {
+						nvidia,function = "usb3-ss";
+						status = "okay";
+					};
+				};
+			};
+		};
+
+		ports {
+			usb2-0 {
+				vbus-supply = <&vdd_usb1_vbus>;
+				status = "okay";
+				mode = "otg";
+			};
+
+			usb2-1 {
+				vbus-supply = <&vdd_run_cam>;
+				status = "okay";
+				mode = "host";
+			};
+
+			usb2-2 {
+				vbus-supply = <&vdd_usb3_vbus>;
+				status = "okay";
+				mode = "host";
+			};
+
+			usb3-0 {
+				nvidia,usb2-companion = <0>;
+				status = "okay";
+			};
+
+			usb3-1 {
+				nvidia,usb2-companion = <1>;
+				status = "okay";
+			};
+		};
+	};
+
 	sdhci0_pwrseq: sdhci0_pwrseq {
 		compatible = "mmc-pwrseq-simple";
 
@@ -410,33 +503,6 @@ i2s@0,70301100 {
 		};
 	};
 
-	usb@0,7d000000 { /* Rear external USB port. */
-		status = "okay";
-	};
-
-	usb-phy@0,7d000000 {
-		status = "okay";
-		vbus-supply = <&vdd_usb1_vbus>;
-	};
-
-	usb@0,7d004000 { /* Internal webcam. */
-		status = "okay";
-	};
-
-	usb-phy@0,7d004000 {
-		status = "okay";
-		vbus-supply = <&vdd_run_cam>;
-	};
-
-	usb@0,7d008000 { /* Left external USB port. */
-		status = "okay";
-	};
-
-	usb-phy@0,7d008000 {
-		status = "okay";
-		vbus-supply = <&vdd_usb3_vbus>;
-	};
-
 	backlight: backlight {
 		compatible = "pwm-backlight";