xgmac_wait_until_done
ret = xgmac_wait_until_done(&bus->dev, regs, endian);
ret = xgmac_wait_until_done(&bus->dev, regs, endian);
ret = xgmac_wait_until_done(&bus->dev, regs, endian);
ret = xgmac_wait_until_done(&bus->dev, regs, endian);