needhelp to install linux 2.6 on ppc405 of a virtex II pro

Hi
I want to install linux 2.6 on a ppc405 of a virtex II pro, and then patch it with rtai or xenomai. Is there some tutorial explaining the installation procedure (where to find sources, drivers etc).
I have found this link: http://users.telenet.be/steven.kauffmann/installation/index.htm 
but it concerns linux 2.4;
Can anyone help me to find useful links or documents to install the 2.6 kernel whith a real time extension?
Thanks