[PATCH v4 4/4] arm64: dts: cix: Add USB4/USB5 nodes for Sky1

[Hongliang Yang]

Add USB4 and USB5 controller nodes for the CIX Sky1 SoC. Enable USB4
and USB5 in host mode on the Radxa Orion O6 board.

The per-controller RCSU registers are accessed through a syscon regmap
referenced by the cix,usb-rcsu phandle.

The shared RCSU slice of the two controllers is described by a syscon
node; each controller references its registers through the cix,usb-rcsu
phandle with offsets.
Signed-off-by: Hongliang Yang <hongliang.yang at cixtech.com>
---
 arch/arm64/boot/dts/cix/sky1-orion-o6.dts | 42 +++++++++++
 arch/arm64/boot/dts/cix/sky1.dtsi         | 88 +++++++++++++++++++++++
 2 files changed, 130 insertions(+)

diff --git a/arch/arm64/boot/dts/cix/sky1-orion-o6.dts b/arch/arm64/boot/dts/cix/sky1-orion-o6.dts
index b152942aaa60..4f47e8cd70fc 100644
--- a/arch/arm64/boot/dts/cix/sky1-orion-o6.dts
+++ b/arch/arm64/boot/dts/cix/sky1-orion-o6.dts
@@ -80,6 +80,22 @@ pins {
 
 		};
 	};
+
+	pinctrl_usb4: usb4-power-on-cfg {
+		pins {
+			bias-pull-down;
+			drive-strength = <8>;
+			pinmux = <CIX_PAD_GPIO041_FUNC_USB_DRIVE_VBUS4>;
+		};
+	};
+
+	pinctrl_usb5: usb5-power-on-cfg {
+		pins {
+			bias-pull-down;
+			drive-strength = <8>;
+			pinmux = <CIX_PAD_GPIO042_FUNC_USB_DRIVE_VBUS5>;
+		};
+	};
 };
 
 &pcie_x8_rc {
@@ -118,6 +134,32 @@ &uart2 {
 	status = "okay";
 };
 
+&usb4 {
+	pinctrl-0 = <&pinctrl_usb4>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&usbss_4 {
+	dr_mode = "host";
+
+	status = "okay";
+};
+
+&usb5 {
+	pinctrl-0 = <&pinctrl_usb5>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&usbss_5 {
+	dr_mode = "host";
+
+	status = "okay";
+};
+
 &usb3_phy4 {
 	status = "okay";
 
diff --git a/arch/arm64/boot/dts/cix/sky1.dtsi b/arch/arm64/boot/dts/cix/sky1.dtsi
index 478c726fae96..2fe9e8244447 100644
--- a/arch/arm64/boot/dts/cix/sky1.dtsi
+++ b/arch/arm64/boot/dts/cix/sky1.dtsi
@@ -15,6 +15,11 @@ / {
 	#address-cells = <2>;
 	#size-cells = <2>;
 
+	aliases {
+		usb4 = &usb4;
+		usb5 = &usb5;
+	};
+
 	cpus {
 		#address-cells = <2>;
 		#size-cells = <0>;
@@ -576,6 +581,89 @@ mbox_ap2sfh: mailbox at 80a0000 {
 			cix,mbox-dir = "tx";
 		};
 
+		usbss_rcsu45: syscon at 91c0300 {
+			compatible = "cix,sky1-usbss-rcsu", "syscon";
+			reg = <0x00 0x091c0300 0x00 0x200>;
+		};
+
+		usb4: usb-4 {
+			compatible = "cix,sky1-usbssp";
+			ranges;
+			#address-cells = <2>;
+			clocks = <&scmi_clk CLK_TREE_USB3A_H0_CLK_SOF>,
+			         <&scmi_clk CLK_TREE_USB3A_0_AXI_GATE>,
+			         <&scmi_clk CLK_TREE_USB3A_H0_CLK_LPM>,
+			         <&scmi_clk CLK_TREE_USB3A_0_APB_GATE>;
+			clock-names = "sof", "axi", "lpm", "apb";
+			resets = <&s5_syscon SKY1_USBC_SS2_PRST_N>,
+			         <&s5_syscon SKY1_USBC_SS2_RST_N>;
+			reset-names = "apb", "core";
+			#size-cells = <2>;
+			cix,usb-rcsu = <&usbss_rcsu45 0x14 0x100>;
+			cix,usb-syscon = <&s5_syscon>;
+
+			status = "disabled";
+
+			usbss_4: usb at 91d0000 {
+				compatible = "cdns,usb3";
+				reg = <0x00 0x91d0000 0x00 0x4000>,
+				      <0x00 0x91d8000 0x00 0x8000>,
+				      <0x00 0x91d4000 0x00 0x4000>;
+				reg-names = "otg", "xhci", "dev";
+				dr_mode = "otg";
+				interrupts = <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH 0>,
+				             <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH 0>,
+				             <GIC_SPI 253 IRQ_TYPE_LEVEL_HIGH 0>,
+				             <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH 0>;
+				interrupt-names = "host", "peripheral",
+				                  "otg", "wakeup";
+				maximum-speed = "super-speed-plus";
+				phys = <&usb3_phy4_0>;
+				phy-names = "cdns3,usb3-phy";
+
+				status = "disabled";
+			};
+		};
+
+		usb5: usb-5 {
+			compatible = "cix,sky1-usbssp";
+			ranges;
+			#address-cells = <2>;
+			clocks = <&scmi_clk CLK_TREE_USB3A_H1_CLK_SOF>,
+			         <&scmi_clk CLK_TREE_USB3A_1_AXI_GATE>,
+			         <&scmi_clk CLK_TREE_USB3A_H1_CLK_LPM>,
+			         <&scmi_clk CLK_TREE_USB3A_1_APB_GATE>;
+			clock-names = "sof", "axi", "lpm", "apb";
+			resets = <&s5_syscon SKY1_USBC_SS3_PRST_N>,
+			         <&s5_syscon SKY1_USBC_SS3_RST_N>;
+			reset-names = "apb", "core";
+			#size-cells = <2>;
+			cix,usb-rcsu = <&usbss_rcsu45 0x24 0x110>;
+			cix,usb-syscon = <&s5_syscon>;
+
+			status = "disabled";
+
+			usbss_5: usb at 91e0000 {
+				compatible = "cdns,usb3";
+				reg = <0x00 0x91e0000 0x00 0x4000>,
+				      <0x00 0x91e8000 0x00 0x8000>,
+				      <0x00 0x91e4000 0x00 0x4000>;
+				reg-names = "otg", "xhci", "dev";
+				dr_mode = "otg";
+				interrupts = <GIC_SPI 257 IRQ_TYPE_LEVEL_HIGH 0>,
+				             <GIC_SPI 257 IRQ_TYPE_LEVEL_HIGH 0>,
+				             <GIC_SPI 258 IRQ_TYPE_LEVEL_HIGH 0>,
+				             <GIC_SPI 257 IRQ_TYPE_LEVEL_HIGH 0>;
+				interrupt-names = "host", "peripheral",
+				                  "otg", "wakeup";
+				maximum-speed = "super-speed-plus";
+				phys = <&usb3_phy4_1>;
+				phy-names = "cdns3,usb3-phy";
+
+				status = "disabled";
+			};
+		};
+
 		usb3_phy4: usb-phy at 9210000 {
 			compatible = "cix,sky1-usb3-phy";
 			reg = <0x00 0x09210000 0x00 0x40000>;
-- 
2.54.0