Hi wood.zhang,
we are currently finishing the framebuffer backend for the DavinciFB. The final commits will occur some time this week.
I created a small howto for configuration of the disko framebuffer backend, which can be found
here.
The C2 Microsystems CC1100 seems to be a very sophisticated board, which will be poorly supported by the generic framebuffer backend. It seems feasible to add specific support for that board to Disko.
kind regards
Stefan