[U-Boot] [PATCH v3] Correct corrupted NAND Flash access on KARO TX25 modules

[Scott Wood <scottwood@freescale.com>]

On 04/06/2012 04:22 PM, Gachet Daniel wrote:
> Hi Stefano,
> 
> You will find below the new patch for the NAND flash access problem on the TX25 module.
> I hope this version is fulfilling your expectations.
> 
> Cordially,
> 
> Daniel 
> 
> diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
> index 35e89a0..fe1cef6 100644
> --- a/drivers/mtd/nand/mxc_nand.c
> +++ b/drivers/mtd/nand/mxc_nand.c
> @@ -1290,7 +1290,9 @@ static void mxc_setup_config1(void)
>  	uint16_t tmp;
>  
>  	tmp = readw(&host->regs->nfc_config1);
> +#ifndef CONFIG_NAND_MXC_NFC_TWO_CYCLES
>  	tmp |= NFC_ONE_CYCLE;
> +#endif
>  	tmp |= NFC_4_8N_ECC;
>  	writew(tmp, &host->regs->nfc_config1);
>  	if (host->pagesize_2k)
> diff --git a/include/configs/tx25.h b/include/configs/tx25.h
> index 87bd8a6..0c9aeb8 100644
> --- a/include/configs/tx25.h
> +++ b/include/configs/tx25.h
> @@ -110,6 +110,7 @@
>  /* NAND */
>  #define CONFIG_NAND_MXC
>  #define CONFIG_NAND_MXC_V1_1
> +#define CONFIG_NAND_MXC_NFC_TWO_CYCLES
>  #define CONFIG_MXC_NAND_REGS_BASE	(0xBB000000)
>  #define CONFIG_SYS_MAX_NAND_DEVICE	1
>  #define CONFIG_SYS_NAND_BASE		(0xBB000000)

Please add documentation for this new config option -- also it should be
CONFIG_SYS as it is hardware description rather than configuration.

-Scott