HDAC_RIRBCTL
HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, 0x0);
HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL,
HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, HDAC_RIRBCTL_RINTCTL);
rirbctl = HDAC_READ_1(&sc->mem, HDAC_RIRBCTL);
HDAC_WRITE_1(&sc->mem, HDAC_RIRBCTL, rirbctl);