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| author | Jonas Karlman <jonas@kwiboo.se> | 2026-05-29 21:03:52 +0200 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2026-06-02 22:44:25 +0200 |
| commit | e897bcf81dd920bf80ace6d98ec6f9645c5b50f2 (patch) | |
| tree | a1125e427311b989a6dd96f6941333f1615f2357 | |
| parent | 5f3ae9b12a6c523992a7216bbc4420ac33450b79 (diff) | |
| download | linux-e897bcf81dd920bf80ace6d98ec6f9645c5b50f2.tar.gz linux-e897bcf81dd920bf80ace6d98ec6f9645c5b50f2.zip | |
arm64: dts: rockchip: Enable USB 2.0 ports on Radxa E20C
The Radxa E20C has one USB2.0 Type-A HOST port and one USB2.0 Type-C port.
The Type-C port is conneced to a FE1.1s_QFN USB hub on the board, with its
ports being connected to the XHCI usb controller and an usb-uart bridge.
This also means, the XHCI controller can only be used in device-mode.
Add support for using the USB 2.0 ports on Radxa E20C.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
[set xhci to peripheral and add comment about the outward-facing hub]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260529190355.4148175-3-heiko@sntech.de
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts index b32452756155..f872b8d20ebc 100644 --- a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts +++ b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts @@ -134,6 +134,18 @@ regulator-max-microvolt = <5000000>; }; + vcc5v0_usb20: regulator-5v0-vcc-usb20 { + compatible = "regulator-fixed"; + enable-active-high; + gpios = <&gpio0 RK_PA1 GPIO_ACTIVE_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&usb_host_en>; + regulator-name = "vcc5v0_usb20"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + vin-supply = <&vcc5v0_sys>; + }; + vccio_sd: regulator-vccio-sd { compatible = "regulator-gpio"; gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>; @@ -273,6 +285,12 @@ rockchip,pins = <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>; }; }; + + usb { + usb_host_en: usb-host-en { + rockchip,pins = <0 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; }; &pwm1 { @@ -320,3 +338,45 @@ pinctrl-0 = <&uart0m0_xfer>; status = "okay"; }; + +&usb_host0_ehci { + status = "okay"; +}; + +&usb_host0_ohci { + status = "okay"; +}; + +/* + * The usb controller can only work in peripheral mode, as it is + * connected to one of the ports of an outward-facing usb hub. + * + * type_c-port (hub-input) + * | + * usb-hub + * | | + * uart-usb usb-host0 + * | + * uart0 + */ +&usb_host0_xhci { + dr_mode = "peripheral"; + extcon = <&usb2phy>; + maximum-speed = "high-speed"; + phys = <&usb2phy_otg>; + phy-names = "usb2-phy"; + status = "okay"; +}; + +&usb2phy { + status = "okay"; +}; + +&usb2phy_host { + phy-supply = <&vcc5v0_usb20>; + status = "okay"; +}; + +&usb2phy_otg { + status = "okay"; +}; |