diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index de75f6aac74055..bc68721e626357 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -21,6 +21,39 @@
 	chosen {
 		stdout-path = "serial0";
 	};
+
+	vcc_5v0: regulator-vcc-5v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	vcc4v0: regulator-vcc4v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc4v0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <4000000>;
+		regulator-max-microvolt = <4000000>;
+		vin-supply = <&vcc_5v0>;
+	};
+
+	vcc5v0_usb: regulator-vcc5v0-usb {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio K1_GPIO(126) GPIO_ACTIVE_HIGH>;
+		regulator-name = "vcc5v0_usb";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0>;
+	};
+};
+
+&combo_phy {
+	status = "okay";
 };
 
 &emmc {
@@ -90,3 +123,13 @@
 	pinctrl-0 = <&uart0_2_cfg>;
 	status = "okay";
 };
+
+&usbphy2 {
+	status = "okay";
+};
+
+&usb_dwc3 {
+	dr_mode = "host";
+	vbus-supply = <&vcc5v0_usb>;
+	status = "okay";
+};