[edk2-devel] [PATCH v2 6/9] Platform/RaspberryPi: Power up sd, and tweak GPIOs

[Jeremy Linton]

Hi,

On 12/15/20 3:00 PM, Jeremy Linton wrote:
> It seems we should be powering up the sd cards, and possibly
> the clocks as well to assure they are setup properly before
> we attempt to access the controller.

Looks like this hasn't been merged yet. I sent this patch as a 
replacement for 6/9 in the original set, rather than resend the entire set.

Would it help if I resent the entire series?

Thanks,




> 
> Signed-off-by: Jeremy Linton <jeremy.linton at arm.com>
> ---
>   Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c | 10 ++++++++++
>   1 file changed, 10 insertions(+)
> 
> diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> index 28f57438c5..e55ed63efa 100644
> --- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> +++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
> @@ -552,6 +552,16 @@ ApplyVariables (
>         GpioPinFuncSet (37, GPIO_FSEL_ALT3);
>         GpioPinFuncSet (38, GPIO_FSEL_ALT3);
>         GpioPinFuncSet (39, GPIO_FSEL_ALT3);
> +
> +      /*
> +       * power and clock everything by default
> +       */
> +      Status = mFwProtocol->SetPowerState (RPI_MBOX_POWER_STATE_SDHCI,
> +                                           TRUE, TRUE); //SD on with wait
> +      Status = mFwProtocol->SetGpioConfig (RPI_EXP_GPIO_SD_VOLT,
> +                                           RPI_EXP_GPIO_DIR_OUT, TRUE); //3.3v
> +      Status = mFwProtocol->SetClockState (RPI_MBOX_CLOCK_RATE_EMMC2, TRUE);
> +      Status = mFwProtocol->SetClockState (RPI_MBOX_CLOCK_RATE_EMMC, TRUE);
>       }
>     } else {
>       DEBUG ((DEBUG_ERROR, "Model Family %d not supported...\n", mModelFamily));
> 



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