[Milhouse]

You could go back through the builds until you find a version where the wired network is working, that might be useful.

Also, confirm you have correctly disabled FIQ FSM by running "dmesg | grep FIQ".

One more thing - if you have no network in OpenELEC (and thus no ssh) but want a console to diagnose the problem, add "textmode" to the end of your line in cmdline.txt, connect a keyboard and reboot. Now run dmesg, ifconfig, ethtool etc.