just in case svn does not come back soon, you can use the latest revision you have: the driver was always compiled and only the messdriv.c entries were commented out. uncomment them and you can try those systems with any updated CPU core you may have

(notice that the only changes I have done to enable cybiko are the following
a couple of defines for CPU_H8Sxxx = CPU_H83002, and a couple of #if 0 in address maps... I suggest you to keep only the tag fix flash1->flash2 of all those changes)