Compiling a custom Linux is an inevitable part of your embedded design. Adding LCD and GUI to the board will broaden the application of your system. In this video, we have compiled the kernel for AM335x SoC from TI. The board has 4.3" LCD and touchscreen.
Refer to the video:
meta-arm (commit): c4f04f3fb66f8f4365b08b553af8206372e90a63
meta-ti (commit): 07.01.00.006
Arago project:
http://arago-project.org/
Openembedded:
http://www.openembedded.org/