OpenWrt

OpenWRT has experimental support for most big-name Allwinner boards including:
 * Cubieboard
 * Cubieboard 2
 * Cubietruck (WIP)
 * A10 OlinuXino LIME
 * A13 OlinuXino WIFI
 * A20 OlinuXino MICRO
 * pcDuino

Most interesting kernel patches has been back-ported from the sunxi-devel branch to OpenWRT's Linux 3.12 kernel.

Confirmed working drivers:
 * EMAC
 * GMAC
 * SD/MMC
 * USB (EHCI)
 * Clock
 * PIO
 * Timers

Links:
 * sunxi @ OpenWRT
 * Daily builds at http://downloads.openwrt.org/snapshots/trunk/sunxi/