Hi,
this patch / commit f166f890c8 ("net: ethernet: fec: Replace interrupt
driven MDIO with polled IO") broke networking on i.MX6Q boards with
Marvell 88E1510 PHYs (Copper / 1000Base-T).
Reverting said commit fixes the problem.
We also reverted 7cdaa4cc4b ("net: ethernet: fec: prevent tx starvation
under high rx load") but that was just for the revert of the problematic
commit to apply cleanly on top of 5.8 / 5.8.1.
Best regards,
Clemens
