ESDHC_MIX_CTRL_DDREN
m &= ~(ESDHC_MIX_CTRL_DDREN | ESDHC_MIX_CTRL_HS400_EN);
m |= ESDHC_MIX_CTRL_DDREN;
m |= ESDHC_MIX_CTRL_DDREN | ESDHC_MIX_CTRL_HS400_EN;