Who cares about PReP?

[Paul Mackerras]

I started looking at moving the PReP code over to arch/powerpc.  I am
struck by how many ifdefs there are in there to set things up for
particular individual PReP implementations.  We can do better than
that, I'm sure, but the issue becomes one of testing.  The only PReP I
have here is an RS/6000 43p-140.

Who else has a PReP system and would be willing to do some testing and
debugging?  If so, what sort of PReP is it?

Paul.