MV88E1111_SCR
scr = phy_read(phydev, MV88E1111_SCR);
err = phy_write(phydev, MV88E1111_SCR, scr & ~(MV88E1111_SCR_125CLK));
scr = phy_read(phydev, MV88E1111_SCR);
err = phy_write(phydev, MV88E1111_SCR, scr | 0x0008);