[U-Boot] [PATCH 1/2] at91: modified NAND flash timing on meesc board

[Albert ARIBAUD]

Hi Daniel,

Le 25/01/2012 14:19, Daniel Gorsulowski a écrit :
> Signed-off-by: Daniel Gorsulowski<Daniel.Gorsulowski at esd.eu>
> ---
>   board/esd/meesc/meesc.c |    8 ++++----
>   1 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/board/esd/meesc/meesc.c b/board/esd/meesc/meesc.c
> index 4882ffc..9dd4375 100644
> --- a/board/esd/meesc/meesc.c
> +++ b/board/esd/meesc/meesc.c
> @@ -73,20 +73,20 @@ static void meesc_nand_hw_init(void)
>   	writel(csa,&matrix->csa[0]);
>
>   	/* Configure SMC CS3 for NAND/SmartMedia */
> -	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
> -		AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
> +	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
> +		AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(2),
>   		&smc->cs[3].setup);
>
>   	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
>   		AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
>   		&smc->cs[3].pulse);
>
> -	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
> +	writel(AT91_SMC_CYCLE_NWE(6) | AT91_SMC_CYCLE_NRD(6),
>   		&smc->cs[3].cycle);
>   	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
>   		AT91_SMC_MODE_EXNW_DISABLE |
>   		AT91_SMC_MODE_DBW_8 |
> -		AT91_SMC_MODE_TDF_CYCLE(3),
> +		AT91_SMC_MODE_TDF_CYCLE(12),
>   		&smc->cs[3].mode);
>
>   	/* Configure RDY/BSY */

Is this (and its counterpart for otc570) a performance improvement or a 
bug fix?.

Amicalement,
-- 
Albert.