MDIO_PHY_ID_C45
data->phy_id ^= MDIO_PHY_ID_C45 | 0x0400;
data->phy_id ^= MDIO_PHY_ID_C45 | 0x0400;
return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
(MDIO_PHY_ID_C45 | MDIO_PHY_ID_PRTAD | MDIO_PHY_ID_DEVAD)
return MDIO_PHY_ID_C45 | (prtad << 5) | devad;