MII_KSZPHY_CTRL
ret = phy_set_bits(phydev, MII_KSZPHY_CTRL,
ret = phy_clear_bits(phydev, MII_KSZPHY_CTRL,
ret = phy_read(phydev, MII_KSZPHY_CTRL);
temp = phy_read(phydev, MII_KSZPHY_CTRL);
phy_write(phydev, MII_KSZPHY_CTRL, temp);
ctrl = phy_read(phydev, MII_KSZPHY_CTRL);
return phy_write(phydev, MII_KSZPHY_CTRL, ctrl);