add Tegra194 XUSB host and pad controller support

index 320dd389f34d..89b84067cb4c 100644
@@ -6,4 +6,5 @@ phy-tegra-xusb-$(CONFIG_ARCH_TEGRA_124_SOC) += xusb-tegra124.o
 phy-tegra-xusb-$(CONFIG_ARCH_TEGRA_132_SOC) += xusb-tegra124.o
 phy-tegra-xusb-$(CONFIG_ARCH_TEGRA_210_SOC) += xusb-tegra210.o
 phy-tegra-xusb-$(CONFIG_ARCH_TEGRA_186_SOC) += xusb-tegra186.o
+phy-tegra-xusb-$(CONFIG_ARCH_TEGRA_194_SOC) += xusb-tegra186.o
 obj-$(CONFIG_PHY_TEGRA194_P2U) += phy-tegra194-p2u.o

index 9fb682e47c29..7d0089006e67 100644
@@ -37,6 +37,7 @@ Required properties:
   - Tegra132: "nvidia,tegra132-xusb-padctl", "nvidia,tegra124-xusb-padctl"
   - Tegra210: "nvidia,tegra210-xusb-padctl"
   - Tegra186: "nvidia,tegra186-xusb-padctl"
+  - Tegra194: "nvidia,tegra194-xusb-padctl"
 - reg: Physical base address and length of the controller's registers.
 - resets: Must contain an entry for each entry in reset-names.
 - reset-names: Must include the following entries:

@@ -62,6 +63,10 @@ For Tegra186:
 - vclamp-usb-supply: Bias rail for USB pad. Must supply 1.8 V.
 - vddio-hsic-supply: HSIC PHY power supply. Must supply 1.2 V.
 
+For Tegra194:
+- avdd-usb-supply: USB I/Os, VBUS, ID, REXT, D+/D- power supply. Must supply
+  3.3 V.
+- vclamp-usb-supply: Bias rail for USB pad. Must supply 1.8 V.
 
 Pad nodes:
 ==========

@@ -154,6 +159,11 @@ For Tegra210, the list of valid PHY nodes is given below:
 - sata: sata-0
   - functions: "usb3-ss", "sata"
 
+For Tegra194, the list of valid PHY nodes is given below:
+- usb2: usb2-0, usb2-1, usb2-2, usb2-3
+  - functions: "xusb"
+- usb3: usb3-0, usb3-1, usb3-2, usb3-3
+  - functions: "xusb"
 
 Port nodes:
 ===========

@@ -221,6 +231,11 @@ Optional properties:
   is internal. In the absence of this property the port is considered to be
   external.
 
+- maximum-speed: Only for Tegra194. A string property that specifies maximum
+  supported speed of a usb3 port. Valid values are:
+  - "super-speed-plus": default, the usb3 port supports USB 3.1 Gen 2 speed.
+  - "super-speed": the usb3 port supports USB 3.1 Gen 1 speed only.
+
 For Tegra124 and Tegra132, the XUSB pad controller exposes the following
 ports:
 - 3x USB2: usb2-0, usb2-1, usb2-2

@@ -233,6 +248,9 @@ For Tegra210, the XUSB pad controller exposes the following ports:
 - 2x HSIC: hsic-0, hsic-1
 - 4x super-speed USB: usb3-0, usb3-1, usb3-2, usb3-3
 
+For Tegra194, the XUSB pad controller exposes the following ports:
+- 4x USB2: usb2-0, usb2-1, usb2-2, usb2-3
+- 4x super-speed USB: usb3-0, usb3-1, usb3-2, usb3-3
 
 Examples:
 =========

index ccac43be12ac..b9cba9c531b8 100644
@@ -537,6 +537,145 @@
 			status = "disabled";
 		};
 
+		xusb_padctl: padctl@3520000 {
+			compatible = "nvidia,tegra194-xusb-padctl";
+			reg = <0x03520000 0x1000>,
+			      <0x03540000 0x1000>;
+			reg-names = "padctl", "ao";
+
+			resets = <&bpmp TEGRA194_RESET_XUSB_PADCTL>;
+			reset-names = "padctl";
+
+			status = "disabled";
+
+			pads {
+				usb2 {
+					clocks = <&bpmp TEGRA194_CLK_USB2_TRK>;
+					clock-names = "trk";
+
+					lanes {
+						usb2-0 {
+							nvidia,function = "xusb";
+							status = "disabled";
+							#phy-cells = <0>;
+						};
+
+						usb2-1 {
+							nvidia,function = "xusb";
+							status = "disabled";
+							#phy-cells = <0>;
+						};
+
+						usb2-2 {
+							nvidia,function = "xusb";
+							status = "disabled";
+							#phy-cells = <0>;
+						};
+
+						usb2-3 {
+							nvidia,function = "xusb";
+							status = "disabled";
+							#phy-cells = <0>;
+						};
+					};
+				};
+
+				usb3 {
+					lanes {
+						usb3-0 {
+							nvidia,function = "xusb";
+							status = "disabled";
+							#phy-cells = <0>;
+						};
+
+						usb3-1 {
+							nvidia,function = "xusb";
+							status = "disabled";
+							#phy-cells = <0>;
+						};
+
+						usb3-2 {
+							nvidia,function = "xusb";
+							status = "disabled";
+							#phy-cells = <0>;
+						};
+
+						usb3-3 {
+							nvidia,function = "xusb";
+							status = "disabled";
+							#phy-cells = <0>;
+						};
+					};
+				};
+			};
+
+			ports {
+				usb2-0 {
+					status = "disabled";
+				};
+
+				usb2-1 {
+					status = "disabled";
+				};
+
+				usb2-2 {
+					status = "disabled";
+				};
+
+				usb2-3 {
+					status = "disabled";
+				};
+
+				usb3-0 {
+					status = "disabled";
+				};
+
+				usb3-1 {
+					status = "disabled";
+				};
+
+				usb3-2 {
+					status = "disabled";
+				};
+
+				usb3-3 {
+					status = "disabled";
+				};
+			};
+		};
+
+		usb@3610000 {
+			compatible = "nvidia,tegra194-xusb";
+			reg = <0x03610000 0x40000>,
+			      < 0x03600000 0x10000>;
+			reg-names = "hcd", "fpci";
+
+			interrupts = <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+
+			clocks = <&bpmp TEGRA194_CLK_XUSB_CORE_HOST>,
+				 <&bpmp TEGRA194_CLK_XUSB_FALCON>,
+				 <&bpmp TEGRA194_CLK_XUSB_CORE_SS>,
+				 <&bpmp TEGRA194_CLK_XUSB_SS>,
+				 <&bpmp TEGRA194_CLK_CLK_M>,
+				 <&bpmp TEGRA194_CLK_XUSB_FS>,
+				 <&bpmp TEGRA194_CLK_UTMIPLL>,
+				 <&bpmp TEGRA194_CLK_CLK_M>,
+				 <&bpmp TEGRA194_CLK_PLLE>;
+			clock-names = "xusb_host", "xusb_falcon_src",
+				      "xusb_ss", "xusb_ss_src", "xusb_hs_src",
+				      "xusb_fs_src", "pll_u_480m", "clk_m",
+				      "pll_e";
+
+			power-domains = <&bpmp TEGRA194_POWER_DOMAIN_XUSBC>,
+					<&bpmp TEGRA194_POWER_DOMAIN_XUSBA>;
+			power-domain-names = "xusb_host", "xusb_ss";
+
+			nvidia,xusb-padctl = <&xusb_padctl>;
+			status = "disabled";
+		};
+
 		fuse@3820000 {
 			compatible = "nvidia,tegra194-efuse";
 			reg = <0x03820000 0x10000>;

index bdd33ff4e324..623f7d7d216b 100644
@@ -71,6 +71,29 @@
 			vmmc-supply = <&vdd_emmc_3v3>;
 		};
 
+		padctl@3520000 {
+			avdd-usb-supply = <&vdd_usb_3v3>;
+			vclamp-usb-supply = <&vdd_1v8ao>;
+
+			ports {
+				usb2-1 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+
+				usb2-3 {
+					vbus-supply = <&vdd_5v_sata>;
+				};
+
+				usb3-0 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+
+				usb3-3 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+			};
+		};
+
 		rtc@c2a0000 {
 			status = "okay";
 		};

@@ -234,7 +257,7 @@
 						regulator-max-microvolt = <3300000>;
 					};
 
-					ldo5 {
+					vdd_usb_3v3: ldo5 {
 						regulator-name = "VDD_USB_3V3";
 						regulator-min-microvolt = <3300000>;
 						regulator-max-microvolt = <3300000>;

@@ -317,5 +340,16 @@
 			gpio = <&gpio TEGRA194_MAIN_GPIO(A, 1) GPIO_ACTIVE_HIGH>;
 			regulator-boot-on;
 		};
+
+		vdd_5v_sata: regulator@4 {
+			compatible = "regulator-fixed";
+			reg = <4>;
+
+			regulator-name = "VDD_5V_SATA";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio TEGRA194_MAIN_GPIO(Z, 1) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
 	};
 };

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