[PATCH 5/6] arm64: dts: rockchip: Enable USB for Khadas Edge 2L

Gray Huang
2026-03-25T05:49:09Z

The Khadas Edge 2L board provides one USB 3.0 Host port and one
USB 2.0 port (connected via an internal hub). Enable the
corresponding DWC3 controllers and PHYs.

Signed-off-by: Gray Huang <gray.huang@wesion.com>
---
.../dts/rockchip/rk3576-khadas-edge-2l.dts | 47 +++++++++++++++++++
1 file changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
index 003342fd69a7..8ecd00f6645d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
@@ -30,6 +30,29 @@ hdmi_con_in: endpoint {
};
};

+ vcc5v0_device: regulator-vcc5v0-device {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc5v0_device";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ vcc5v0_host: regulator-vcc5v0-host {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc5v0_host";
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
+ vin-supply = <&vcc5v0_device>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb_host_pwren>;
+ };
+
vcc_sys: regulator-vcc5v0-sys {
compatible = "regulator-fixed";
regulator-name = "vcc_sys";
@@ -531,6 +554,12 @@ pcie0_rst: pcie0-rst {
};
};

+ usb {
+ usb_host_pwren: usb-host-pwren {
+ rockchip,pins = <2 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
wifi {
wifi_reg_on: wifi-reg-on {
rockchip,pins = <4 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
@@ -542,6 +571,24 @@ wifi_wake_host: wifi-wake-host {
};
};

+&usb_drd1_dwc3 {
+ dr_mode = "host";
+ status = "okay";
+};
+
+&u2phy1 {
+ status = "okay";
+};
+
+&u2phy1_otg {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+};
+
+&combphy1_psu {
+ status = "okay";
+};
+
&sdhci {
bus-width = <8>;
no-sdio;
--
2.34.1