Comment # 11 on bug 59672 from Florian Mickler

A patch referencing this bug report has been merged in Linux v3.8-rc6:

commit b3dfcb207e550dffb8680cab7afaf6b4fb6eae33
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Thu Jan 24 19:02:01 2013 +0100

    drm/radeon: Enable DMA_IB_SWAP_ENABLE on big endian hosts.