IRQ_BANK0
sc->sc_imask[0][ipl] |= (1 << IRQ_BANK0(irq));
sc->sc_imask[0][ipl] &= ~(1 << IRQ_BANK0(irq));
if (pending & (1 << IRQ_BANK0(irq)))
sc->sc_bcm_intc_imask[0][ipl] |= (1 << IRQ_BANK0(irq));
sc->sc_bcm_intc_imask[0][ipl] &= ~(1 << IRQ_BANK0(irq));
if (pending & (1 << IRQ_BANK0(irq)))