I am flashing this while it is not mining. I will let you know if it gets me back up and mining.
http://ck.kolivas.org/apps/cgminer/avalon/20140320/
A new openwrt with 4.2.0 ? 
TY.
Here you go, firmware based on cgminer 4.2.0 (with efficient solo mining!): TY.http://ck.kolivas.org/apps/cgminer/avalon/20140320/