HPIC_SECONDARY
hrowpic_write_reg(sc, HPIC_ENABLE, HPIC_SECONDARY, 0);
hrowpic_write_reg(sc, HPIC_CLEAR, HPIC_SECONDARY, 0xffffffff);
mask = hrowpic_read_reg(sc, HPIC_STATUS, HPIC_SECONDARY);
bank = (irq >= 32) ? HPIC_SECONDARY : HPIC_PRIMARY ;