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

27 Mar 2013

      Dear Amar,
On 27/03/13 14:18, Amarendra Reddy wrote:
...
Dear Minkyu,
please don't top posting.
...
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@lists.denx.de/msg107515.html
Then please move it to this patch.
...
Thanks & Regards
Amarendra Reddy
On 27 March 2013 10:33, Minkyu Kang <mk7.kang@samsung.com mailto: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 <mailto: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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Thanks,
Minkyu Kang.