[U-Boot] [PATCH v3 2/7] mx23evk: Fix DDR pin iomux settings

Marek Vasut marex at denx.de
Fri May 3 04:24:51 CEST 2013


Dear Fabio Estevam,

> From: Fabio Estevam <fabio.estevam at freescale.com>
> 
> Change MUX_CONFIG_EMI to use the same drive strength as the bootlets code
> from Freescale, which results in much better stability.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
> ---
> Changes since v2:
> - Only change the drive strength
> Changes since v1:
> - Only adjust MUX_CONFIG_EMI
> 
>  board/freescale/mx23evk/spl_boot.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/board/freescale/mx23evk/spl_boot.c
> b/board/freescale/mx23evk/spl_boot.c index b6f4e7e..fd6b3d9 100644
> --- a/board/freescale/mx23evk/spl_boot.c
> +++ b/board/freescale/mx23evk/spl_boot.c
> @@ -26,7 +26,7 @@
>  #include <asm/arch/sys_proto.h>
> 
>  #define	MUX_CONFIG_SSP1	(MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
> -#define	MUX_CONFIG_EMI	(MXS_PAD_3V3 | MXS_PAD_16MA | MXS_PAD_PULLUP)
> +#define	MUX_CONFIG_EMI	(MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_PULLUP)

btw. if 3V3 setting doesn't exist, why do we have it here? We should just can it 
then.

Best regards,
Marek Vasut


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