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| author |   Dong Aisheng <aisheng.dong@nxp.com> | 2016-07-12 15:46:18 +0800 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2016-07-25 10:34:56 +0200 |
| commit | 0b330e38589766556462c13988ebc83ef24964e5 (patch) | |
| tree | 2604be59bdf29c48a803949071b22aab93f6940b /drivers/mmc | |
| parent | mmc: sdhci: add standard hw auto retuning support (diff) | |
| download | linux-dev-0b330e38589766556462c13988ebc83ef24964e5.tar.xz linux-dev-0b330e38589766556462c13988ebc83ef24964e5.zip | |
mmc: sdhci-esdhc-imx: enable hw auto retuning for STD_TUNING
Enable HW auto retuning when set SDHCI_CTRL_EXEC_TUNING and clear it
when clear SDHCI_CTRL_TUNED_CLK.
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index b47dad15fa3e..c90aa07b106f 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -45,6 +45,7 @@ #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 */ @@ -485,11 +486,13 @@ 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) { |