PHY_REG_GLOBAL
err = ice_read_ptp_reg_eth56g(hw, port, PHY_REG_GLOBAL, &global_val);
err = ice_write_ptp_reg_eth56g(hw, port, PHY_REG_GLOBAL, global_val);
err = ice_write_ptp_reg_eth56g(hw, port, PHY_REG_GLOBAL, global_val);
err = ice_write_ptp_reg_eth56g(hw, port, PHY_REG_GLOBAL, global_val);