I82579_UNKNOWN1
I82579_UNKNOWN1, &data);
2, I82579_UNKNOWN1, data);
I82579_UNKNOWN1, 0xc023);
rv = sc->phy.readreg_locked(dev, 2, I82579_UNKNOWN1, &data);
rv = sc->phy.writereg_locked(dev, 2, I82579_UNKNOWN1, data);