[U-Boot] [PATCH 1/2] mtd: nand: Introduce CONFIG_SYS_NAND_BUSWIDTH_16BIT

[Scott Wood <scottwood@freescale.com>]

On 02/26/2013 12:17:01 PM, Fabio Estevam wrote:
> Introduce CONFIG_SYS_NAND_BUSWIDTH_16BIT option so that any NAND  
> controller
> driver could use it when a 16-bit NAND is deployed.
> 
> drivers/mtd/nand/ndfc has CONFIG_SYS_NDFC_16BIT, so just rename it,  
> so that
> other NAND drivers could reuse the same symbol.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
>  README                  |    6 +++---
>  drivers/mtd/nand/ndfc.c |    4 ++--
>  2 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/README b/README
> index d8cb394..1e265c9 100644
> --- a/README
> +++ b/README
> @@ -3713,9 +3713,9 @@ Low Level (hardware related) configuration  
> options:
>  - CONFIG_SYS_SRIOn_MEM_SIZE:
>  		Size of SRIO port 'n' memory region
> 
> -- CONFIG_SYS_NDFC_16
> -		Defined to tell the NDFC that the NAND chip is using a
> -		16 bit bus.
> +- CONFIG_SYS_NAND_BUSWIDTH_16BIT
> +		Defined to tell the NAND controller that the NAND chip  
> is using
> + 		a 16 bit bus.

Mention here that not all drivers use this symbol, and provide a list  
of those that do.

E.g. on fsl_ifc, we already have this information elsewhere on a  
per-chip basis.

-Scott