On 11:42 Sat 24 Nov , 张忠山 wrote:
> 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
I'm expecting to see your patches
Best Regards,
J.
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