[U-Boot] [RFC PATCH 1/7] arm: atmel: sama5d3: early enable PIO peripherals

[Bo Shen <voice.shen@atmel.com>]

Hi Andreas,

On 10/30/2013 19:11, Andreas Bie?mann wrote:
> Hi Bo,
>
> On 10/30/2013 10:15 AM, Bo Shen wrote:
>> Enable the PIO peripherals early that other peripherals.
>>
>> Signed-off-by: Bo Shen <voice.shen@atmel.com>
>> ---
>>   board/atmel/sama5d3xek/sama5d3xek.c |    3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/board/atmel/sama5d3xek/sama5d3xek.c b/board/atmel/sama5d3xek/sama5d3xek.c
>> index b0965ef..7fa3ae7 100644
>> --- a/board/atmel/sama5d3xek/sama5d3xek.c
>> +++ b/board/atmel/sama5d3xek/sama5d3xek.c
>> @@ -158,6 +158,9 @@ void lcd_show_board_info(void)
>>
>>   int board_early_init_f(void)
>>   {
>> +	at91_periph_clk_enable(ATMEL_ID_PIOA | ATMEL_ID_PIOB | ATMEL_ID_PIOC |
>> +			       ATMEL_ID_PIOD | ATMEL_ID_PIOE);
>> +
>
> that should be done in some SPL specific 'main()'. I dunno which is the
> entry point for SPL, but we should provide such a function and there
> should we do such stuff.

As before, we depends on the at91bootstrap to enable the PIO clock. Now, 
I think we need to enable PIO clock in u-boot by itself. So,
we need this.

> Best regards
>
> Andreas Bie?mann

Best Regards,
Bo Shen