SSB_IPSFLAG
ipsflag = ssb_read32(bus->mipscore.dev, SSB_IPSFLAG);
ssb_write32(dev, SSB_IPSFLAG,
ssb_read32(dev, SSB_IPSFLAG) |
u32 ipsflag = ssb_read32(mdev, SSB_IPSFLAG);
ssb_write32(mdev, SSB_IPSFLAG, irqflag);