On 07/08/15 12:12, Roger Quadros wrote:
> Instead of accessing the gpmc_status register directly start
> using the gpmc_nand_ops->nand_writebuffer_empty() helper
> to check write buffer empty status.
> 
> Signed-off-by: Roger Quadros <rog...@ti.com>
> ---
>  drivers/mtd/nand/omap2.c | 12 ++----------
>  1 file changed, 2 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
> index f214fe2..5c2f6df 100644
> --- a/drivers/mtd/nand/omap2.c
> +++ b/drivers/mtd/nand/omap2.c
> @@ -289,15 +289,11 @@ static void omap_write_buf8(struct mtd_info *mtd, const 
> u_char *buf, int len)
>       struct omap_nand_info *info = container_of(mtd,
>                                               struct omap_nand_info, mtd);
>       u_char *p = (u_char *)buf;
> -     u32     status = 0;
>  
>       while (len--) {
>               iowrite8(*p++, info->nand.IO_ADDR_W);
>               /* wait until buffer is available for write */
> -             do {
> -                     status = readl(info->reg.gpmc_status) &
> -                                     STATUS_BUFF_EMPTY;
> -             } while (!status);
> +             while (info->ops->nand_writebuffer_empty());

This should be
                while (!info->ops->nand_writebuffer_empty());

>       }
>  }
>  
> @@ -325,17 +321,13 @@ static void omap_write_buf16(struct mtd_info *mtd, 
> const u_char * buf, int len)
>       struct omap_nand_info *info = container_of(mtd,
>                                               struct omap_nand_info, mtd);
>       u16 *p = (u16 *) buf;
> -     u32     status = 0;
>       /* FIXME try bursts of writesw() or DMA ... */
>       len >>= 1;
>  
>       while (len--) {
>               iowrite16(*p++, info->nand.IO_ADDR_W);
>               /* wait until buffer is available for write */
> -             do {
> -                     status = readl(info->reg.gpmc_status) &
> -                                     STATUS_BUFF_EMPTY;
> -             } while (!status);
> +             while (info->ops->nand_writebuffer_empty());

here as well.

>       }
>  }
>  
> 

cheers,
-roger
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