I have googled a very good thing:
the source code for BCMxx: http://code.google.com/p/kmbge/

But it doesn't work with BCM5906M, will someone get it work for BCM5906M???

(wingrunr21 is working on it^_^
Give great thanks to wingrunr21 )

seem a project dead since long time, i hope someone will take it and continue, just remember of 5787M too