We are using Mavell PHY 88E1112 in P1021 Customized board. 88E1112 has two shared interface, one is using to connect Copper and another one to connect SFP. Both interface are connecting to MAC via SGMII port. Copper interface and SFP interface is failed to detect any link on fiber or copper SFP module. But we are able read and write the PHY registers via MDC.MDIO bus.
Can any one share details about How to establish the PHY link and how to debug if link not succeeded .