SM501 Frame Buffer driver on PPC

[Mark Chambers]

> The endianess on PCI on ppc is still an issue (I haven't investigated this
> problem further during the last month).
> 

There really shouldn't be an endian issue on SM501 since registers are
32 bit.  What we do have is the 5200 that does byte swapping on PCI
for no good reason (IMHO)

--Mark Chambers