From: Chukun Pan <amadeus@jmu.edu.cn>
Date: Mon, 18 May 2026 10:00:30 +0000 (+0800)
Subject: riscv: dts: spacemit: enable USB3 on OrangePi R2S
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5ad6737df88bd3c3e83145edb25737cb19f9a1f;p=thirdparty%2Fkernel%2Flinux.git

riscv: dts: spacemit: enable USB3 on OrangePi R2S

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@jmu.edu.cn>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://patch.msgid.link/20260518100030.2354606-1-amadeus@jmu.edu.cn
Signed-off-by: Yixun Lan <dlan@kernel.org>
---

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index de75f6aac7405..1ecc40749e5ac 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -21,6 +21,19 @@
 	chosen {
 		stdout-path = "serial0";
 	};
+
+	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>;
+	};
+};
+
+&combo_phy {
+	status = "okay";
 };
 
 &emmc {
@@ -90,3 +103,13 @@
 	pinctrl-0 = <&uart0_2_cfg>;
 	status = "okay";
 };
+
+&usbphy2 {
+	status = "okay";
+};
+
+&usb_dwc3 {
+	dr_mode = "host";
+	vbus-supply = <&vcc5v0_usb>;
+	status = "okay";
+};