[PATCH v4 3/3] riscv: dts: spacemit: Enable USB3.0/PCIe on OrangePi RV2

Han Gao
2026-03-31T16:28:13Z

Enable the DWC3 USB 3.0 controller and its associated usbphy2 on the
OrangePi RV2 board.

The board utilizes a Genesys Logic GL3523 USB3.0 hub.

Define a 3.3v fixed voltage regulator for PCIe and enable PCIe and
PHY-related Device Tree nodes for the OrangePi RV2.

Signed-off-by: Han Gao <gaohan@iscas.ac.cn>
---
.../boot/dts/spacemit/k1-orangepi-rv2.dts | 68 +++++++++++++++++++
1 file changed, 68 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
index e5e358d49c09..e93e7f660820 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
@@ -23,6 +23,15 @@ chosen {
stdout-path = "serial0";
};

+ pcie_vcc_3v3: regulator-pcie-vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "pcie_vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio K1_GPIO(116) GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
reg_vcc_4v: regulator-vcc-4v {
compatible = "regulator-fixed";
regulator-name = "vcc4v0";
@@ -44,6 +53,10 @@ led1 {
};
};

+&combo_phy {
+ status = "okay";
+};
+
&eth0 {
phy-handle = <&rgmii0>;
phy-mode = "rgmii-id";
@@ -190,8 +203,63 @@ dldo6 {
};
};

+&pcie1_phy {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie1_3_cfg>;
+ status = "okay";
+};
+
+&pcie1_port {
+ phys = <&pcie1_phy>;
+ vpcie3v3-supply = <&pcie_vcc_3v3>;
+};
+
+&pcie1 {
+ vpcie3v3-supply = <&pcie_vcc_3v3>;
+ status = "okay";
+};
+
+&pcie2_phy {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie2_4_cfg>;
+ status = "okay";
+};
+
+&pcie2_port {
+ phys = <&pcie2_phy>;
+ vpcie3v3-supply = <&pcie_vcc_3v3>;
+};
+
+&pcie2 {
+ vpcie3v3-supply = <&pcie_vcc_3v3>;
+ status = "okay";
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_2_cfg>;
status = "okay";
};
+
+&usbphy2 {
+ status = "okay";
+};
+
+&usb_dwc3 {
+ dr_mode = "host";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ hub_2_0: hub@1 {
+ compatible = "usb5e3,610";
+ reg = <0x1>;
+ peer-hub = <&hub_3_0>;
+ };
+
+ hub_3_0: hub@2 {
+ compatible = "usb5e3,620";
+ reg = <0x2>;
+ peer-hub = <&hub_2_0>;
+ };
+};
--
2.47.3