IMX_UCR1_TRDYEN
mask = sc->sc_pending ? IMX_UCR1_TXMPTYEN : IMX_UCR1_TRDYEN;
CLR(ucr1, IMX_UCR1_TXMPTYEN|IMX_UCR1_TRDYEN);
|IMX_UCR1_TXMPTYEN|IMX_UCR1_TRDYEN \