[U-Boot] [PATCH 1/2] Revert "imx: mx6: ddr correct tRFC and tXS"

[Stefano Babic]

On 01/09/2015 05:03, Peng Fan wrote:
> This reverts commit 059323fb6a8f21637bb617919715c2427f24777c.
> 
> This commit 059323fb6a8f21637bb617919715c2427f24777c use JESD79-3E which
> is not the newest spec. Should use JESD79-3F in which tRFC is 260ns for
> 4Gb chip.
> 
> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
> Cc: Stefano Babic <sbabic at denx.de>
> Cc: Tim Harvey <tharvey at gateworks.com>
> ---
>  arch/arm/cpu/armv7/mx6/ddr.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/cpu/armv7/mx6/ddr.c b/arch/arm/cpu/armv7/mx6/ddr.c
> index cf5587b..6b039e4 100644
> --- a/arch/arm/cpu/armv7/mx6/ddr.c
> +++ b/arch/arm/cpu/armv7/mx6/ddr.c
> @@ -702,8 +702,8 @@ void mx6_ddr3_cfg(const struct mx6_ddr_sysinfo *sysinfo,
>  		txs = DIV_ROUND_UP(170000, clkper) - 1;
>  		break;
>  	case 4: /* 4Gb per chip */
> -		trfc = DIV_ROUND_UP(300000, clkper) - 1;
> -		txs = DIV_ROUND_UP(310000, clkper) - 1;
> +		trfc = DIV_ROUND_UP(260000, clkper) - 1;
> +		txs = DIV_ROUND_UP(270000, clkper) - 1;
>  		break;
>  	case 8: /* 8Gb per chip */
>  		trfc = DIV_ROUND_UP(350000, clkper) - 1;
> 


Applied to u-boot-imx, thanks !

Best regards,
Stefano Babic

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