On 15/04/16 20:29, Dong Aisheng wrote:
> Enable HW auto retuning when set SDHCI_CTRL_EXEC_TUNING and clear it
> when clear SDHCI_CTRL_TUNED_CLK.
>
> Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
I presume this patch should wait for patch 17, but nevertheless:
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> drivers/mmc/host/sdhci-esdhc-imx.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
> index 9f9be3f..a582a83 100644
> --- a/drivers/mmc/host/sdhci-esdhc-imx.c
> +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
> @@ -44,6 +44,7 @@
> #define ESDHC_MIX_CTRL_AC23EN (1 << 7)
> #define ESDHC_MIX_CTRL_EXE_TUNE (1 << 22)
> #define ESDHC_MIX_CTRL_SMPCLK_SEL (1 << 23)
> +#define ESDHC_MIX_CTRL_AUTO_TUNE_EN (1 << 24)
> #define ESDHC_MIX_CTRL_FBCLK_SEL (1 << 25)
> #define ESDHC_MIX_CTRL_HS400_EN (1 << 26)
> /* Bits 3 and 6 are not SDHCI standard definitions */
> @@ -484,11 +485,13 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
> } else {
> v &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
> m &= ~ESDHC_MIX_CTRL_FBCLK_SEL;
> + m &= ~ESDHC_MIX_CTRL_AUTO_TUNE_EN;
> }
>
> if (val & SDHCI_CTRL_EXEC_TUNING) {
> v |= ESDHC_MIX_CTRL_EXE_TUNE;
> m |= ESDHC_MIX_CTRL_FBCLK_SEL;
> + m |= ESDHC_MIX_CTRL_AUTO_TUNE_EN;
> tuning_ctrl = readl(host->ioaddr + ESDHC_TUNING_CTRL);
> tuning_ctrl |= ESDHC_STD_TUNING_EN | ESDHC_TUNING_START_TAP_DEFAULT;
> if (imx_data->boarddata.tuning_start_tap) {
>
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