At 15:53 -0500 11/21/2002, John Klos wrote:
>Hi,
>
>>  Is anyone actively working on support for the PPC601 processor? I would
>>  be happy to work on this, if I'm not duplicating someone else's effort.
>>  I'm waiting on parts, but within a few days I should have two PowerMac
>>  7200s to use to get this working.
>
>There's already a lot of code in tree to support the 601, but I think that
>people who know better can update all of us as to what remains to be done.
>I also have a number of 7200 style machines which would get some use when
>NetBSD runs on the 601.

I don't know if it will affect the original poster's efforts, but the 
7200 came with two different versions of the ROMs.   I thought I'd 
throw that out because it might save some time down the road, in case 
it does affect BSD support.

One version appears as $77D.28F1 in Apple System Profiler.  The other 
version is the same as is found in the x500 machines and clones and 
is $77D.28F2.  Yes, many 7200s use the same ROMs as the x500 
machines, despite having a different memory controller and CPU bus 
arbiter.  This surprised me.

On the motherboard, the four chips with the first version are marked 
341S0106 - 341S0109.  The four chips of the second version are marked 
341S0168 - 341S0171.

Jeff Walther