BM_AMR_OFF
iowrite32(alrm->enabled ? 0 : BM_AMR_OFF, priv->iobase + HW_AMR);
iowrite32(enabled ? 0 : BM_AMR_OFF, priv->iobase + HW_AMR);
iowrite32(BM_AMR_OFF, priv->iobase + HW_AMR);
iowrite32(BM_AMR_OFF, priv->iobase + HW_AMR);