Chris Ball wrote:
> Hi Seungwon,
>
> On Mon, Oct 24 2011, Seungwon Jeon wrote:
> > Code cleanup. The codes of related to eMMC4.5 are scattered.
> > This patch removes a duplicate if-statement and assembles all.
> >
> > Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
> > ---
> > drivers/mmc/core/mmc.c | 20 +++++++++-----------
> > 1 files changed, 9 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
> > index fb5bf01..3627044 100644
> > --- a/drivers/mmc/core/mmc.c
> > +++ b/drivers/mmc/core/mmc.c
> > @@ -467,29 +467,27 @@ static int mmc_read_ext_csd(struct mmc_card *card,
> u8 *ext_csd)
> > card->ext_csd.rst_n_function =
> ext_csd[EXT_CSD_RST_N_FUNCTION];
> > }
> >
> > - /* eMMC v4.5 or later */
> > - if (card->ext_csd.rev >= 6)
> > - card->ext_csd.feature_support |= MMC_DISCARD_FEATURE;
> > -
> > card->ext_csd.raw_erased_mem_count =
> ext_csd[EXT_CSD_ERASED_MEM_CONT];
> > if (ext_csd[EXT_CSD_ERASED_MEM_CONT])
> > card->erased_byte = 0xFF;
> > else
> > card->erased_byte = 0x0;
> >
> > + /* eMMC v4.5 or later */
> > if (card->ext_csd.rev >= 6) {
> > + card->ext_csd.feature_support |= MMC_DISCARD_FEATURE;
> > +
> > card->ext_csd.generic_cmd6_time = 10 *
> > ext_csd[EXT_CSD_GENERIC_CMD6_TIME];
> > card->ext_csd.power_off_longtime = 10 *
> > ext_csd[EXT_CSD_POWER_OFF_LONG_TIME];
> > - } else
> > - card->ext_csd.generic_cmd6_time = 0;
>
> Your patch removes this line completely. Why is that? You should
> explain it in the commit message.
Sure, I will.
Removed line is just for explicit initialization considering previous
version
even though generic_cmd6_time is zeroed at card init-time.
So it seems be unnecessary.
Best regards,
Seungwon Jeon.
>
> >
> > - card->ext_csd.cache_size =
> > - ext_csd[EXT_CSD_CACHE_SIZE + 0] << 0 |
> > - ext_csd[EXT_CSD_CACHE_SIZE + 1] << 8 |
> > - ext_csd[EXT_CSD_CACHE_SIZE + 2] << 16 |
> > - ext_csd[EXT_CSD_CACHE_SIZE + 3] << 24;
> > + card->ext_csd.cache_size =
> > + ext_csd[EXT_CSD_CACHE_SIZE + 0] << 0 |
> > + ext_csd[EXT_CSD_CACHE_SIZE + 1] << 8 |
> > + ext_csd[EXT_CSD_CACHE_SIZE + 2] << 16 |
> > + ext_csd[EXT_CSD_CACHE_SIZE + 3] << 24;
> > + }
> >
> > out:
> > return err;
>
> The rest looks good, thanks,
>
> - Chris.
> --
> Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/>
> One Laptop Per Child
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