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

[Ard Biesheuvel]

On 1/4/21 5:08 PM, Jeremy Linton wrote:
> 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?
> 

Yes please,

-- 
Ard.

> 
>>
>> 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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