[U-Boot] [PATCH] Fix RK3328-evb Floating GPIO0_D6 - pull up - 4ma

[Kever Yang]

Hi Mister,

NAK for this patch.
There is a dts for rock64 now.
For the pinctrl, if this is a sdmmc IO, it would prefer to set the io in
sdmmc node.
One question is, the fix regulator driver should init this GPIO to LOW or
HIGH
as required which is not floating, does that not enough?

Thanks,
- Kever

Mister Fix-IT <mrfixit2001 at gmail.com> 于2019年5月11日周六 上午3:01写道：

> Pin GPIO0_30 (D6) is left floating. In the case of the new revision of
> Pine64 Rock64 Rev3, this pin needs to be pulled up 4ma. Otherwise
> uboot fails to boot from sd stating "Card did not respond to voltage
> select".
>
> ---
>
>  arch/arm/dts/rk3328-evb.dts | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/dts/rk3328-evb.dts b/arch/arm/dts/rk3328-evb.dts
> index ec594a8452e..c242a8364c5 100644
> --- a/arch/arm/dts/rk3328-evb.dts
> +++ b/arch/arm/dts/rk3328-evb.dts
> @@ -25,6 +25,8 @@
>                 compatible = "regulator-fixed";
>                 regulator-name = "vcc3v3";
>                 gpio = <&gpio0 30 GPIO_ACTIVE_LOW>;
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&sdmmc0m1_pwren>;
>                 regulator-always-on;
>                 regulator-boot-on;
>         };
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