Acked-by: Jaehoon Chung <jh80.ch...@samsung.com>
On 11/27/2013 10:00 PM, Alexey Brodkin wrote:
> If platform provides "host->fifoth_val" it will be used for
> initialization of DWMCI_FIFOTH register. Otherwise default value will be
> used.
>
> This implementation allows:
> * escape unclear and recursive calculations that are currently in use
> * use whatever custom value for DWMCI_FIFOTH initialization if any
> particular SoC requires it
>
> Signed-off-by: Alexey Brodkin <abrod...@synopsys.com>
>
> Cc: Mischa Jonker <mjon...@synopsys.com>
> Cc: Alim Akhtar <alim.akh...@samsung.com>
> Cc: Rajeshwari Shinde <rajeshwar...@samsung.com>
> Cc: Jaehoon Chung <jh80.ch...@samsung.com>
> Cc: Amar <amarendra...@samsung.com>
> Cc: Kyungmin Park <kyungmin.p...@samsung.com>
> Cc: Minkyu Kang <mk7.k...@samsung.com>
> Cc: Simon Glass <s...@chromium.org>
> Cc: Pantelis Antoniou <pa...@antoniou-consulting.com>
> Cc: Andy Fleming <aflem...@freescale.com>
> ---
> drivers/mmc/dw_mmc.c | 9 ++-------
> 1 file changed, 2 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
> index 1e0f72b..a47e02c 100644
> --- a/drivers/mmc/dw_mmc.c
> +++ b/drivers/mmc/dw_mmc.c
> @@ -300,7 +300,6 @@ static void dwmci_set_ios(struct mmc *mmc)
> static int dwmci_init(struct mmc *mmc)
> {
> struct dwmci_host *host = (struct dwmci_host *)mmc->priv;
> - u32 fifo_size;
>
> if (host->quirks & DWMCI_QUIRK_DISABLE_SMU) {
> dwmci_writel(host, EMMCP_MPSBEGIN0, 0);
> @@ -330,13 +329,9 @@ static int dwmci_init(struct mmc *mmc)
> dwmci_writel(host, DWMCI_IDINTEN, 0);
> dwmci_writel(host, DWMCI_BMOD, 1);
>
> - if (!host->fifoth_val) {
> - fifo_size = dwmci_readl(host, DWMCI_FIFOTH);
> - fifo_size = ((fifo_size & RX_WMARK_MASK) >> RX_WMARK_SHIFT) + 1;
> - host->fifoth_val = MSIZE(0x2) | RX_WMARK(fifo_size / 2 - 1) |
> - TX_WMARK(fifo_size / 2);
> + if (host->fifoth_val) {
> + dwmci_writel(host, DWMCI_FIFOTH, host->fifoth_val);
> }
> - dwmci_writel(host, DWMCI_FIFOTH, host->fifoth_val);
>
> dwmci_writel(host, DWMCI_CLKENA, 0);
> dwmci_writel(host, DWMCI_CLKSRC, 0);
>
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