IIR_RXRDY
case IIR_RXRDY:
case IIR_RXRDY: /* RxFIFO has been accumulated */
if (sc->sc_type == COM_TYPE_BCMAUXUART && ISSET(iir, IIR_RXRDY))
if ((iir & (IIR_RXRDY|IIR_TXRDY)) == IIR_RXRDY) {