ICU_INT_CFG
reg = RD4(sc, ICU_INT_CFG(i));
WR4(sc, ICU_INT_CFG(i), 0);
reg = RD4(sc, ICU_INT_CFG(irq_no));
WR4(sc, ICU_INT_CFG(irq_no), vector);
WR4(sc, ICU_INT_CFG(ICU_INT_SATA1), vector);
WR4(sc, ICU_INT_CFG(ICU_INT_SATA0), vector);
WR4(sc, ICU_INT_CFG(irq_no), 0);