[PATCH 2/4] arm64: dts: rockchip: enable USB A ports on ArmSoM Sige5

Alexey Charkov
2025-06-03T17:01:28Z

Enable the two USB type A ports (USB2 and USB3) present on the ArmSoM
Sige5 board.

Both ports use just one xHCI controller, with the USB 2.0 signals fed
off the same USB OTG PHY through an onboard hub. VBUS of both ports is
controlled by the same GPIO regulator (VCC_USBHOST in the schematics,
toggled by GPIO4 RK_PA6).

Signed-off-by: Alexey Charkov <alchark@gmail.com>
---
.../boot/dts/rockchip/rk3576-armsom-sige5.dts | 38 ++++++++++++++++++++++
1 file changed, 38 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts b/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts
index d9c129be55a0d997e04e6d677cdc98fb50353418..7ce1fb1380b0863c902fdd9cbc7454ee6011cf92 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts
@@ -205,6 +205,24 @@ vcc_3v3_ufs_s0: regulator-vcc-ufs-s0 {
regulator-max-microvolt = <3300000>;
vin-supply = <&vcc_5v0_sys>;
};
+
+ vcc_5v0_host: regulator-vcc-5v0-host {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_5v0_host";
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&gpio4 RK_PA4 GPIO_ACTIVE_HIGH>;
+ vin-supply = <&vcc_5v0_device>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb_host_pwren>;
+ };
+};
+
+&combphy1_psu {
+ status = "okay";
};

&cpu_b0 {
@@ -757,6 +775,12 @@ pcie_reset: pcie-reset {
rockchip,pins = <2 RK_PB4 RK_FUNC_GPIO &pcfg_pull_up>;
};
};
+
+ usb {
+ usb_host_pwren: usb-host-pwren {
+ rockchip,pins = <4 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
};

&sai1 {
@@ -798,11 +822,25 @@ &sdmmc {
status = "okay";
};

+&u2phy1 {
+ status = "okay";
+};
+
+&u2phy1_otg {
+ phy-supply = <&vcc_5v0_host>;
+ status = "okay";
+};
+
&uart0 {
pinctrl-0 = <&uart0m0_xfer>;
status = "okay";
};

+&usb_drd1_dwc3 {
+ dr_mode = "host";
+ status = "okay";
+};
+
&vop {
status = "okay";
};

--
2.49.0