/* Limit supported and advertised modes in fiber mode */
        if (of_property_read_bool(of_node, "micrel,fiber-mode")) {
                phydev->dev_flags |= MICREL_PHY_FXEN;
-               phydev->supported &= SUPPORTED_FIBRE |
-                                    SUPPORTED_100baseT_Full |
+               phydev->supported &= SUPPORTED_100baseT_Full |
                                     SUPPORTED_100baseT_Half;
-               phydev->advertising &= ADVERTISED_FIBRE |
-                                      ADVERTISED_100baseT_Full |
+               phydev->supported |= SUPPORTED_FIBRE;
+               phydev->advertising &= ADVERTISED_100baseT_Full |
                                       ADVERTISED_100baseT_Half;
+               phydev->advertising |= ADVERTISED_FIBRE;
                phydev->autoneg = AUTONEG_DISABLE;
        }