AR_MCI_COMMAND2
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
REG_RMW_FIELD(ah, AR_MCI_COMMAND2,
REG_RMW_FIELD(ah, AR_MCI_COMMAND2,
regval = REG_READ(ah, AR_MCI_COMMAND2);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);