This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.
TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.
NOTES:
pmppc was removed as an arch, and moved to a evbppc target.
the mapped address to leap to completes. This generally manifests
itself as a random exception with RedBoot just after 'go'.
Fix it by adding a data-dependency on the 'ldr' result.
- Move board-specific PCI/GPIO initialisation to its rightful place.
- Handle clearing down latched GPIO interrupts in a board-independent way.
- Use MI com(4) driver for on-chip UARTs.
- Misc. tidying up.
Tested on IXDP425.
