[U-Boot] [PATCH v4 1/7] mx23: Fix pad voltage selection bit
Marek Vasut
marex at denx.de
Fri May 3 16:11:33 CEST 2013
Dear Fabio Estevam,
> From: Fabio Estevam <fabio.estevam at freescale.com>
>
> On mx23 the pad voltage selection bit needs to be always '0', since '1' is
> a reserved value.
>
> For example:
>
> Pin 108, EMI_A06 pin voltage selection:
> 0= 1.8V (mDDR) or 2.5V (DDR1);
> 1= reserved.
>
> Fix the pad voltage definitions for the mx23 case.
>
> Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
> Acked-by: Marek Vasut <marex at denx.de>
> ---
> Changes since v3:
> - Add Marek's ack
> Changes since v2:
> - Only place PAD_3V3 inside the if/else block
> Changes since v1:
> - Newly introduced
>
> arch/arm/include/asm/arch-mxs/iomux.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm/include/asm/arch-mxs/iomux.h
> b/arch/arm/include/asm/arch-mxs/iomux.h index 4288715..f46895e 100644
> --- a/arch/arm/include/asm/arch-mxs/iomux.h
> +++ b/arch/arm/include/asm/arch-mxs/iomux.h
> @@ -71,7 +71,11 @@ typedef u32 iomux_cfg_t;
> #define PAD_16MA 3
>
> #define PAD_1V8 0
> +#if defined CONFIG_MX28
Uh, #if defined(CONFIG_MX28) ?
> #define PAD_3V3 1
> +#else
> +#define PAD_3V3 0
> +#endif
>
> #define PAD_NOPULL 0
> #define PAD_PULLUP 1
Best regards,
Marek Vasut
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