[PATCH v4 4/4] arm64: dts: cix: Add USB4/USB5 nodes for Sky1
From: Hongliang Yang <hidden>
Date: 2026-09-06 03:25:17
Also in:
linux-devicetree, linux-usb, lkml
Subsystem:
arm/cix soc support, the rest · Maintainers:
Gary Yang, Fugang Duan, Linus Torvalds
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 <redacted> --- 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@80a0000 { cix,mbox-dir = "tx"; }; + usbss_rcsu45: syscon@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@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@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@9210000 { compatible = "cix,sky1-usb3-phy"; reg = <0x00 0x09210000 0x00 0x40000>;
--
2.54.0