I've just realized that the 5200 does byte-lane swapping on all PCI accesses. That is, if you write a 32 bit word 0x12345678, 0x12 will go out on byte 0, 0x34 on byte 1, etc. Unfortunately, my target, a T.I. DM642, does not do this, so I've got a big/little endian mismatch. A couple of questions if anybody knows:
- Do all MPC8xxx processors do this - byte swap on all PCI accesses, not just configuration space? - Is there an elegant (simple) way to re-swap the bytes? It's not a big problem really, but if there were a way to set LE mode on a particular page or something like that it might be worth it. Thanks, Mark Chambers
