In D44484#1016693, @manu wrote:

Thanks,
LGTM but I haven't looked at the NetBSD version, I think that it would be best to keep it synced.

Fixed compiling warnings

I'm closing this since I figured this is a hardware bug and not a software one, it turns out the PHY is not responding to changes on the least significant bit of the PHY address, which causes it to be detected as multiple different phys. mii_mediachg will end up isolating it and stopping auto negotiation. Setting phymask hint to 1 will solve this problem.