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

Andreas Bießmann andreas.devel at googlemail.com
Wed Oct 30 12:11:49 CET 2013


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 at 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.

Best regards

Andreas Bießmann


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