SDHCI_PRESENT_STATE
while (mask & RD4(slot, SDHCI_PRESENT_STATE)) {
RD4(slot, SDHCI_PRESENT_STATE), RD1(slot, SDHCI_HOST_CONTROL));
val = RD4(slot, SDHCI_PRESENT_STATE);
while (RD4(slot, SDHCI_PRESENT_STATE) &
while (RD4(slot, SDHCI_PRESENT_STATE) &
return (RD4(slot, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);