Marcel Thürmer has posted schematics for building a two-layer, Linux-ready “Blueberry Pi” SBC with a solderable, Cortex-A7 Allwinner V3 with 64MB RAM, plus WiFi/BT, Ethernet, USB, RGB, MIPI-CSI, and a 26-pin RPi header.

Source : Blueberry Pi DIY hacker board taps Allwinner V3