Do you have any other sources that tell how to do this or have claimed to do this in qemu?
Qemu is pretty basic. Not even sure how well any of the odd cpu's work. I played with sparc a long time ago and found it only a test of my will to see something do nothing.
http://qemu-forum.ipi.f
You may be better off either with a dedicated board or some commercial app to cross develop in the final product you want to do this for.