guides to board files -> device-tree and Android -> mainline?

Hi all, Are there any guides for developers new to Linux for: * converting board files to device-tree * porting drivers and patches from Android to current mainline? There are a lot of ARM mobile devices out there that aren't supported by Linux mainline and having these guides available would really help getting the usual Linux distros to support more mobile devices. Usually the SoC is supported by mainline but the board is not, as is the case for the device I have been trying to work on: http://bonedaddy.net/pabs3/log/2012/12/03/debian-mobile/ -- bye, pabs http://bonedaddy.net/pabs3/