[PATCH v2 2/3] riscv: dts: spacemit: enable USB3 on OrangePi R2S

[Chukun Pan]

Enable the DWC3 USB3.0 controller and its associated PHY on the
OrangePi R2S. The USB regulator provides VBUS for USB2 and USB3
ports, but the USB2 ports are handled by a separate controller.

Signed-off-by: Chukun Pan <amadeus at jmu.edu.cn>
---
 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index 409a6db269ae..bc68721e6263 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -40,6 +40,20 @@ vcc4v0: regulator-vcc4v0 {
 		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 {
@@ -109,3 +123,13 @@ &uart0 {
 	pinctrl-0 = <&uart0_2_cfg>;
 	status = "okay";
 };
+
+&usbphy2 {
+	status = "okay";
+};
+
+&usb_dwc3 {
+	dr_mode = "host";
+	vbus-supply = <&vcc5v0_usb>;
+	status = "okay";
+};
-- 
2.34.1