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

Minkyu Kang
2013-03-27T05:03:38Z

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.