[PATCH][RFC] OCP support for MPC107 and relatives

[Adrian Cox]

The attached patch is a start at adding the internal peripherals of the
MPC107/MPC8240/MPC8245 to the OCP bus. I've used thus in the 2.6 port of
my MPC107 I2C driver, which follows shortly. I intend to use this for
the DMA controller later, once I decide what device ID to give it.

I'm a little uncertain about OCP device IDs. Should there be a separate
I2C device ID for each different I2C programming interface from the same
vendor? Motorola have already given us two separate implementations on
PowerPC.

This is a little bit different from the PPC40x use of OCP, because it's
hard to calculate everything at compile time. This is particularly
caused by the pcore boards, which use the MPC107 but don't use the
interrupt controller.

I've compiled for pcore, lopec, sandpoint, and an in-house board without
errors. PowerPMC250 was broken before, and I have probably not repaired
it.

Any comments? (I'm away from email midweek, so I may not answer until
Friday.)

- Adrian Cox
Humboldt Solutions Ltd.

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