In message <1353686104-31295-4-git-send-email-plagnioj@xxxxxxxxxxxx> Jean-Christophe PLAGNIOL-VILLARD wrote:
> As in the kernel we revert as this was supposed to work but does not yet
> this may need more work on the smc to be able to use it
> So for now revert it
>
> This reverts commit 809f0f6327241504b5071622a8d573255f91a875.
>
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
> ---
> drivers/mtd/nand/atmel_nand.c | 33 +++++++++++++++++++++++++--------
> 1 file changed, 25 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
> index 0477178..69e8171 100644
> --- a/drivers/mtd/nand/atmel_nand.c
> +++ b/drivers/mtd/nand/atmel_nand.c
> @@ -159,16 +159,30 @@ static int atmel_nand_device_ready(struct mtd_info *mtd)
> */
> static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len)
> {
> - struct nand_chip *chip = mtd->priv;
> + struct nand_chip *nand_chip = mtd->priv;
>
> - memcpy_fromio(buf, chip->IO_ADDR_R, len);
> + readsb(nand_chip->IO_ADDR_R, buf, len);
> +}
> +
> +static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len)
> +{
> + struct nand_chip *nand_chip = mtd->priv;
> +
> + readsw(nand_chip->IO_ADDR_R, buf, len / 2);
> }
>
> static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
> {
> - struct nand_chip *chip = mtd->priv;
> + struct nand_chip *nand_chip = mtd->priv;
>
> - memcpy_toio(chip->IO_ADDR_W, buf, len);
> + writesb(nand_chip->IO_ADDR_W, buf, len);
> +}
> +
> +static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len)
> +{
> + struct nand_chip *nand_chip = mtd->priv;
> +
> + writesw(nand_chip->IO_ADDR_W, buf, len / 2);
> }
>
> /*
> @@ -1112,11 +1126,14 @@ static int __init atmel_nand_probe(struct device_d *dev)
>
> nand_chip->chip_delay = 20; /* 20us command delay time */
>
> - if (host->board->bus_width_16) /* 16-bit bus width */
> + if (host->board->bus_width_16) { /* 16-bit bus width */
> nand_chip->options |= NAND_BUSWIDTH_16;
> -
> - nand_chip->read_buf = atmel_read_buf;
> - nand_chip->write_buf = atmel_write_buf;
> + nand_chip->read_buf = atmel_read_buf16;
> + nand_chip->write_buf = atmel_write_buf16;
> + } else {
> + nand_chip->read_buf = atmel_read_buf;
> + nand_chip->write_buf = atmel_write_buf;
> + }
>
> atmel_nand_enable(host);
>
> --
> 1.7.10.4
>
This patch resolves my problem
--
Best Regards,
zzs
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