MMC_OCR_LOW_VOLTAGE
if (sc->slot.host.caps & MMC_OCR_LOW_VOLTAGE)
sc->slot.host.caps |= MMC_OCR_LOW_VOLTAGE;
case MMC_OCR_LOW_VOLTAGE:
case MMC_OCR_LOW_VOLTAGE:
slot->host.host_ocr |= MMC_OCR_LOW_VOLTAGE;