arm64: tegra: Enable XUSB host function on Jetson AGX Orin

This commit enables XUSB host and pad controller on Jetson AGX Orin.

Signed-off-by: Wayne Chang <waynec@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

3 files changed, 278 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
index 07aa5dc83fc6..12f72e300bd2 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
@@ -32,6 +32,29 @@
 			non-removable;
 		};
 
+		padctl@3520000 {
+			vclamp-usb-supply = <&vdd_1v8_ao>;
+			avdd-usb-supply = <&vdd_3v3_ao>;
+
+			ports {
+				usb2-0 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+
+				usb2-1 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+
+				usb2-2 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+
+				usb2-3 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+			};
+		};
+
 		rtc@c2a0000 {
 			status = "okay";
 		};
@@ -41,6 +64,15 @@
 		};
 	};
 
+	vdd_5v0_sys: regulator-vdd-5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "VIN_SYS_5V0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	vdd_1v8_ls: regulator-vdd-1v8-ls {
 		compatible = "regulator-fixed";
 		regulator-name = "VDD_1V8_LS";
@@ -57,6 +89,14 @@
 		regulator-always-on;
 	};
 
+	vdd_3v3_ao: regulator-vdd-3v3-ao {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_3V3_AO";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
 	vdd_3v3_pcie: regulator-vdd-3v3-pcie {
 		compatible = "regulator-fixed";
 		regulator-name = "VDD_3V3_PCIE";
diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
index a4d1be2d3292..8a9747855d6b 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
@@ -2028,6 +2028,99 @@
 			status = "okay";
 		};
 
+		padctl@3520000 {
+			status = "okay";
+
+			pads {
+				usb2 {
+					lanes {
+						usb2-0 {
+							status = "okay";
+						};
+
+						usb2-1 {
+							status = "okay";
+						};
+
+						usb2-2 {
+							status = "okay";
+						};
+
+						usb2-3 {
+							status = "okay";
+						};
+					};
+				};
+
+				usb3 {
+					lanes {
+						usb3-0 {
+							status = "okay";
+						};
+
+						usb3-1 {
+							status = "okay";
+						};
+
+						usb3-2 {
+							status = "okay";
+						};
+					};
+				};
+			};
+
+			ports {
+				usb2-0 {
+					mode = "host";
+					status = "okay";
+				};
+
+				usb2-1 {
+					mode = "host";
+					status = "okay";
+				};
+
+				usb2-2 {
+					mode = "host";
+					status = "okay";
+				};
+
+				usb2-3 {
+					mode = "host";
+					status = "okay";
+				};
+
+				usb3-0 {
+					nvidia,usb2-companion = <1>;
+					status = "okay";
+				};
+
+				usb3-1 {
+					nvidia,usb2-companion = <0>;
+					status = "okay";
+				};
+
+				usb3-2 {
+					nvidia,usb2-companion = <3>;
+					status = "okay";
+				};
+			};
+		};
+
+		usb@3610000 {
+			status = "okay";
+
+			phys = <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-0}>,
+			       <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-1}>,
+			       <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-2}>,
+			       <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-3}>,
+			       <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-0}>,
+			       <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-1}>,
+			       <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-2}>;
+			phy-names = "usb2-0", "usb2-1", "usb2-2", "usb2-3",
+				    "usb3-0", "usb3-1", "usb3-2";
+		};
+
 		ethernet@6800000 {
 			status = "okay";
 
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index c3d390c2cb84..c0dbed3235eb 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -981,6 +981,151 @@
 			status = "disabled";
 		};
 
+		xusb_padctl: padctl@3520000 {
+			compatible = "nvidia,tegra234-xusb-padctl";
+			reg = <0x0 0x03520000 0x0 0x20000>,
+			      <0x0 0x03540000 0x0 0x10000>;
+			reg-names = "padctl", "ao";
+			interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+
+			resets = <&bpmp TEGRA234_RESET_XUSB_PADCTL>;
+			reset-names = "padctl";
+
+			status = "disabled";
+
+			pads {
+				usb2 {
+					clocks = <&bpmp TEGRA234_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,tegra234-xusb";
+			reg = <0x0 0x03610000 0x0 0x40000>,
+			      <0x0 0x03600000 0x0 0x10000>,
+			      <0x0 0x03650000 0x0 0x10000>;
+			reg-names = "hcd", "fpci", "bar2";
+
+			interrupts = <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+
+			clocks = <&bpmp TEGRA234_CLK_XUSB_CORE_HOST>,
+				 <&bpmp TEGRA234_CLK_XUSB_FALCON>,
+				 <&bpmp TEGRA234_CLK_XUSB_CORE_SS>,
+				 <&bpmp TEGRA234_CLK_XUSB_SS>,
+				 <&bpmp TEGRA234_CLK_CLK_M>,
+				 <&bpmp TEGRA234_CLK_XUSB_FS>,
+				 <&bpmp TEGRA234_CLK_UTMIP_PLL>,
+				 <&bpmp TEGRA234_CLK_CLK_M>,
+				 <&bpmp TEGRA234_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";
+			interconnects = <&mc TEGRA234_MEMORY_CLIENT_XUSB_HOSTR &emc>,
+					<&mc TEGRA234_MEMORY_CLIENT_XUSB_HOSTW &emc>;
+			interconnect-names = "dma-mem", "write";
+			iommus = <&smmu_niso1 TEGRA234_SID_XUSB_HOST>;
+
+			power-domains = <&bpmp TEGRA234_POWER_DOMAIN_XUSBC>,
+					<&bpmp TEGRA234_POWER_DOMAIN_XUSBA>;
+			power-domain-names = "xusb_host", "xusb_ss";
+
+			nvidia,xusb-padctl = <&xusb_padctl>;
+			dma-coherent;
+			status = "disabled";
+		};
+
 		fuse@3810000 {
 			compatible = "nvidia,tegra234-efuse";
 			reg = <0x0 0x03810000 0x0 0x10000>;