There seem to be lots of files in config/cpu which are not used anywhere.
Only these directories are used:
config/cpu/generic
config/cpu/i386
config/cpu/i486
config/cpu/powerpc
I suggest removing all the non-generic atomicity.h files which seem redundant, wire up the unused cycles.h files, and completely remove the other directories.
There seem to be lots of files in config/cpu which are not used anywhere.
Only these directories are used:
config/cpu/genericconfig/cpu/i386config/cpu/i486config/cpu/powerpcI suggest removing all the non-generic
atomicity.hfiles which seem redundant, wire up the unusedcycles.hfiles, and completely remove the other directories.