(1)UNIFLASH (DOS program) http://www.pppr.sk/rainbow/programs.html
Interesting... I don't have floppy access to the board so unfortunately this won't work either.
(2)/dev/bios (Linux program) http://www.openbios.info/development/devbios.html
This program segfaults when I try to load the module for the board, though it works fine on some of my other machines.