On 12/18/2011 11:50 AM, Marek Vasut wrote:
> The ecc.size for mxs NAND driver is set to 1 in Linux kernel and to 512 in
> U-Boot, which causes "ubi part" command malfunction due to wrong subpage size.
> 
> Signed-off-by: Marek Vasut <marek.va...@gmail.com>
> Cc: Wolfgang Denk <w...@denx.de>
> Cc: Detlev Zundel <d...@denx.de>
> Cc: Stefan Roese <s...@denx.de>
> Cc: Scott Wood <scottw...@freescale.com>
> Cc: Veli-Pekka Peltola <veli-pekka.pelt...@bluegiga.com>
> ---
>  drivers/mtd/nand/mxs_nand.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c
> index ce2a326..26778ac 100644
> --- a/drivers/mtd/nand/mxs_nand.c
> +++ b/drivers/mtd/nand/mxs_nand.c
> @@ -1105,7 +1105,7 @@ int board_nand_init(struct nand_chip *nand)
>       nand->ecc.layout        = &fake_ecc_layout;
>       nand->ecc.mode          = NAND_ECC_HW;
>       nand->ecc.bytes         = 9;
> -     nand->ecc.size          = 512;
> +     nand->ecc.size          = 1;
>  
>       return 0;
>  

ecc.size = 1 doesn't make sense -- this is the block size over which ecc
is calculated.

Where is this Linux driver?  I don't see mxs_nand.c in Linux.

What specifically is happening in "ubi part" with ecc.size = 512?

-Scott

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