We designed our board using LS1021A processor. It is configured for RGMII eTSEC1 and RGMIIeTSEC2 applying the same PHY (AR8033) as LS1021A-IOT. Our PHYs are connected to both types of Ethernet connectors (standard RJ45 and fiber SFP). The Ethernet communication is fine for RJ45 connectors, but we do not have any communication through the SFP connectors.
How should we change the U-boot code or DTS in order to communicate through SFP connectors?
We use the LS1021A-IOT board as the reference board.