ep405pc

[Greg Watson]

I've started a port to the EmbeddedPlanet ep405pc board. This uses a 
PPC405GPr processor, which is sufficiently different to the Sandpoint 
74xx to make it interesting.

First step was to set up the source tree and sort out some of the PPC 
processor differences.

First problem:

I/O is memory mapped on the PPC, and I'd hardwired the PCI address 
range for the Sandpoint. This is now fixed, and I'm getting serial 
output.

Second problem:

PCI: Sanity check failed

More later...

Greg