[PATCH 1/3] arm64: dts: rockchip: Enable USB 2.0 host1 on Radxa ROCK 3B

[Jonas Karlman]

Hi Adam,

On 9/24/2026 9:14 AM, Adam Wermuth wrote:
> The USB 2.0 data lines of the M.2 B-key slot are routed to USB2_HOST3,
> which is served by usb_host1_ehci/ohci through the host port of
> usb2phy1. Enable the controllers and the PHY port so that modules in
> the B-key slot, such as LTE modems, can enumerate.

This and next patch is likely best suited as an dt-overlay.

Regards,
Jonas

> 
> Signed-off-by: Adam Wermuth <adam at wermuth.pl>
> ---
>  arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts
> index 149a5306bb03..ad9a91c0d0d0 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts
> @@ -758,6 +758,14 @@ &usb_host0_xhci {
>  	status = "okay";
>  };
>  
> +&usb_host1_ehci {
> +	status = "okay";
> +};
> +
> +&usb_host1_ohci {
> +	status = "okay";
> +};
> +
>  &usb_host1_xhci {
>  	status = "okay";
>  };
> @@ -780,6 +788,11 @@ &usb2phy1 {
>  	status = "okay";
>  };
>  
> +&usb2phy1_host {
> +	phy-supply = <&vcc5v0_usb_host>;
> +	status = "okay";
> +};
> +
>  &usb2phy1_otg {
>  	phy-supply = <&vcc5v0_usb_host>;
>  	status = "okay";