SGMII_ACC_SGMII_BZY_
!(data & SGMII_ACC_SGMII_BZY_), 100, 1000000);
mmd_access |= (addr | SGMII_ACC_SGMII_BZY_);
mmd_access |= (addr | SGMII_ACC_SGMII_BZY_ | SGMII_ACC_SGMII_WR_);