[PATCH v1] mtd: rawnand: meson: always use OOB bytes during write

[Michael Nazzareno Trimarchi]

Hi

Yes

Michael

On Tue, Dec 24, 2024 at 8:55 AM Arseniy Krasnov
<avkrasnov at salutedevices.com> wrote:
>
>
>
> On 23.12.2024 15:57, Michael Nazzareno Trimarchi wrote:
> > On Sun, Dec 22, 2024 at 10:23 PM Arseniy Krasnov
> > <avkrasnov at salutedevices.com> wrote:
> >>
> >> If 'oob_required' is not set by the caller (for example 'oobbuf' is NULL),
> >> then driver doesn't copy OOB data from 'oob_poi' to special controller
> >> structures, so zeroes will be written as OOB. But, generic raw NAND logic
> >> in 'nand_base.c' already handles case when OOB is not required to write by
> >> filling 'oob_poi' with 0xFF's. So let's remove 'oob_required' check to
> >> always read 'oob_poi' data for OOB.
> >>
> >> Kernel driver (drivers/mtd/nand/raw/meson_nand.c) works in the same way,
> >> so need to keep same behaviour here.
> >>
> >> Fixes: c2e8c4d09a7a ("mtd: rawnand: Meson NAND controller support")
> >> Signed-off-by: Arseniy Krasnov <avkrasnov at salutedevices.com>
> >> ---
> >>  drivers/mtd/nand/raw/meson_nand.c | 4 +---
> >>  1 file changed, 1 insertion(+), 3 deletions(-)
> >>
> >> diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c
> >> index 81122315f4..82a12ac061 100644
> >> --- a/drivers/mtd/nand/raw/meson_nand.c
> >> +++ b/drivers/mtd/nand/raw/meson_nand.c
> >> @@ -607,9 +607,7 @@ static int meson_nfc_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *ch
> >>                 memcpy(meson_chip->data_buf, buf, mtd->writesize);
> >>
> >>         memset(meson_chip->info_buf, 0, chip->ecc.steps * PER_INFO_BYTE);
> >> -
> >> -       if (oob_required)
> >> -               meson_nfc_set_user_byte(chip, chip->oob_poi);
> >> +       meson_nfc_set_user_byte(chip, chip->oob_poi);
> >>
> >
> > Reviewed-by: Michael Trimarchi <michael at amarulasolutions.com>
> >
> > I will queue it
>
> Thanks. You mean it will be merged to https://source.denx.de/u-boot/custodians/u-boot-nand-flash ?
>
>
> >
> >>         return meson_nfc_write_page_sub(chip, page, false);
> >>  }
> >> --
> >> 2.30.1
> >
> >
> >



-- 
Michael Nazzareno Trimarchi
Co-Founder & Chief Executive Officer
M. +39 347 913 2170
michael at amarulasolutions.com
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