> I think i got it now. ARM chips are able to load and process big
> endian data, while addressing und such stuff are always little endian.

Don't jump to conclusions about ARM's endianess(es) ;-) I just wanted to point out that there's a difference between just "endianess" and "true endianess".
Given the existence of a (non-official) big-endian ARM (ARMeb) port of Debian there must be true bi-endian ARMs able to operate in true big-endian mode.

Hint: Don't believe everything Neko is telling. He is not only wrong about ARM generally being non-true big-endian but also about Power Architecture generally being non-true little-endian.