Hi, To change u-boot for your needs you will need to do approximately the following:
copy include/configs/MPC8260ADS.h to include/configs/YOURBOARD8260.h Print out the the file and sit down with the 8260 ref. manual. Adjust the YOURBOARD8260.h to fit your needs. (If you are not a HW designer this will definitely take you some time) Added a new directory board/yourboard8260 copied the following files from board/mpc8266ads to board/fox8275: config.mk flash.c Makefile mpc8260ads.c -> yourboard8260.c u-boot.lds Changed the files to fit the your board. Changed the main Makefile to support a new target > YOURBOARD8260_config: unconfig > @./mkconfig $(@:_config=) ppc mpc8260 yourboard8260 good luck