[U-Boot] [PATCH 6/6] sunxi: Pine64: DTS: enable USB PHY 0 for HCI0

[Clément Péron]

Hi,

On Thu, 16 May 2019 at 03:27, Andre Przywara <andre.przywara at arm.com> wrote:
>
> The first USB controller on the H6 SoC shares a PHY with the OTG
> controller. Reportedly to avoid problems with the VBUS regulator under
> Linux, we don't link OHCI0/EHCI0 to the USB PHY in the H6 .dtsi file.
>
> However on boards which can't use peripheral mode (because they have an
> always-on VBUS supply on an USB-A socket) we don't need this trick, and
> can properly connect host controller 0 to the PHY 0.
>
> Amend the Pine H64 .dts to reflect this. This enables the upper USB port
> in U-Boot on this board.
>
> Signed-off-by: Andre Przywara <andre.przywara at arm.com>
> ---
>  arch/arm/dts/sun50i-h6-pine-h64.dts | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/dts/sun50i-h6-pine-h64.dts b/arch/arm/dts/sun50i-h6-pine-h64.dts
> index 4802902e12..aad7646b18 100644
> --- a/arch/arm/dts/sun50i-h6-pine-h64.dts
> +++ b/arch/arm/dts/sun50i-h6-pine-h64.dts
> @@ -96,6 +96,8 @@
>  };
>
>  &ehci0 {
> +       phys = <&usb2phy 0>;
> +       phy-names = "usb";
>         status = "okay";
>  };
>
> @@ -120,6 +122,8 @@
>  };
>
>  &ohci0 {
> +       phys = <&usb2phy 0>;
> +       phy-names = "usb";
>         status = "okay";
>  };
>
> @@ -255,7 +259,6 @@
>
>  &usb2otg {
>         dr_mode = "host";
> -       status = "okay";
>  };

Maybe you should add explicit comments in the device-tree to avoid
losing this at next sync with linux dt.

Regards,
Clement

>
>  &usb2phy {
> --
> 2.14.5
>