HPIC_ENABLE
hrowpic_write_reg(sc, HPIC_ENABLE, HPIC_PRIMARY, 0);
hrowpic_write_reg(sc, HPIC_ENABLE, HPIC_SECONDARY, 0);
hrowpic_write_reg(sc, HPIC_ENABLE, roffset, sc->sc_softreg[roffset]);