On Thu, May 16, 2019 at 1:47 AM Andre Przywara <[email protected]> wrote:
>
> The first USB controller on the A64 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 A64 .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 Pine64 and SoPine/LTS .dts to reflect this. This enables the
> upper USB port in U-Boot on those boards.
>
> Signed-off-by: Andre Przywara <[email protected]>
> ---
> arch/arm/dts/sun50i-a64-pine64.dts | 5 ++++-
> arch/arm/dts/sun50i-a64-sopine-baseboard.dts | 5 ++++-
> 2 files changed, 8 insertions(+), 2 deletions(-)
Are these changes going to go upstream to Linux too? If not it's
probably best to add it to a u-boot.dtsi so the changes don't get lost
when the DT files are re-synced from Linux. Same with the similar
patches for the H6 boards.
Peter
> diff --git a/arch/arm/dts/sun50i-a64-pine64.dts
> b/arch/arm/dts/sun50i-a64-pine64.dts
> index c077b6c1f4..523a4d5bff 100644
> --- a/arch/arm/dts/sun50i-a64-pine64.dts
> +++ b/arch/arm/dts/sun50i-a64-pine64.dts
> @@ -80,6 +80,8 @@
> };
>
> &ehci0 {
> + phys = <&usbphy 0>;
> + phy-names = "usb";
> status = "okay";
> };
>
> @@ -136,6 +138,8 @@
> };
>
> &ohci0 {
> + phys = <&usbphy 0>;
> + phy-names = "usb";
> status = "okay";
> };
>
> @@ -301,7 +305,6 @@
>
> &usb_otg {
> dr_mode = "host";
> - status = "okay";
> };
>
> &usbphy {
> diff --git a/arch/arm/dts/sun50i-a64-sopine-baseboard.dts
> b/arch/arm/dts/sun50i-a64-sopine-baseboard.dts
> index 53fcc9098d..1986897177 100644
> --- a/arch/arm/dts/sun50i-a64-sopine-baseboard.dts
> +++ b/arch/arm/dts/sun50i-a64-sopine-baseboard.dts
> @@ -85,6 +85,8 @@
> };
>
> &ehci0 {
> + phys = <&usbphy 0>;
> + phy-names = "usb";
> status = "okay";
> };
>
> @@ -131,6 +133,8 @@
> };
>
> &ohci0 {
> + phys = <&usbphy 0>;
> + phy-names = "usb";
> status = "okay";
> };
>
> @@ -172,7 +176,6 @@
>
> &usb_otg {
> dr_mode = "host";
> - status = "okay";
> };
>
> &usbphy {
> --
> 2.14.5
>
> _______________________________________________
> U-Boot mailing list
> [email protected]
> https://lists.denx.de/listinfo/u-boot
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