[U-Boot] [PATCH 1/4] MMC: DWMMC: Modified fifo size computation

Amarendra Reddy
2013-03-27T05:18:03Z

Dear Minkyu,

The definition of "RX_WMARK" is present in "[PATCH V7 04/10] EXYNOS5:
DWMMC: Added FDT support for DWMMC".

Here is the URL,
http://www.mail-archive.com/u-boot at lists.denx.de/msg107515.html

Thanks & Regards
Amarendra Reddy

On 27 March 2013 10:33, Minkyu Kang <mk7.kang@samsung.com> wrote:

> Dear Amar,
>
> On 05/12/12 22:31, Amar wrote:
> > The current implementation of fifo size computation was giving improper
> > values for eMMC channel. Modified the computation as per user manual.
> >
> > Signed-off-by: Amarendra Reddy <amarendra.xt@samsung.com>
> > ---
> > drivers/mmc/dw_mmc.c | 2 ++
> > 1 files changed, 2 insertions(+), 0 deletions(-)
> >
> > diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
> > index 4070d4e..62dc152 100644
> > --- a/drivers/mmc/dw_mmc.c
> > +++ b/drivers/mmc/dw_mmc.c
> > @@ -332,6 +332,8 @@ static int dwmci_init(struct mmc *mmc)
> > dwmci_writel(host, DWMCI_BMOD, 1);
> >
> > fifo_size = dwmci_readl(host, DWMCI_FIFOTH);
> > + fifo_size = ((fifo_size & RX_WMARK(0xFFF)) >> 16) + 1;
>
> The definition of RX_WMARK is missing.
>
> > +
> > if (host->fifoth_val)
> > fifoth_val = host->fifoth_val;
> > else
> >
>
> Thanks,
> Minkyu Kang.
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