ESDHC_STD_TUNING_EN
if (!(tuning_ctrl & ESDHC_STD_TUNING_EN)) {
tuning_ctrl |= ESDHC_STD_TUNING_EN;
tmp |= ESDHC_STD_TUNING_EN;
tmp &= ~ESDHC_STD_TUNING_EN;
reg &= ~ESDHC_STD_TUNING_EN;