In boot stage install Gentoo normal stage 1 and 2 , do not compile drivers use standard OpenGl driver for integrated graphics card , you will have a resolution as 800*600

here you have

Code:

ftp://f
tp.crux.it/cruxppc/test/crux-ppc64-2.5rc4.iso
ftp://f
tp.crux.it/cruxppc/test/crux-ppc64-2.5rc4.iso.md5

CRUX PPC 2.5 rc4 (64bit)

But I think in new linux kernel you have support for that card otherwise you can install driver from emarge