SD_POWER_OFF
pwr_off = SD_POWER_OFF;
PMOS_STRG_MASK, SD_POWER_OFF | PMOS_STRG_400mA);
SD_POWER_OFF | PMOS_STRG_400mA);
rtsx_pci_write_register(pcr, CARD_PWR_CTL, SD_POWER_MASK, SD_POWER_OFF);