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From: Chris Collins <xfire-9fans@xwa...>
Subject: forgot to mention ts7200 is working
Date: Sat, 30 Apr 2005 15:01:21 +1000

Ronald G. Minnich was once rumoured to have said:
> this is the ep93xx core. 
> 
> it all seems to be working with cache etc. Due to the fact that phsyical 
> memory is 4 segemnts at present only 16 MB of 32MB is usable. 

This is the same problem that my current sparc32 code is plauged with
-- each bank of physical ram on a SS10 appears on a 64MB boundary, so
if a bank has less than 64MBs of RAM...

> I also include a modified xalloc.c that lets you allocate "flavors" of 
> memory, e.g. uncached and cached regions. This may be handy at some point, 
> esp. when we get to 64-bit machines where at minimum you needed "low 4G" 
> and "above4G" flavors of memory.

Actually, xalloc needs fixing to handle an arbitary number of physical
ranges (rather than just the 2 it currently supports).  I've been
saying this on #plan9 for the past... umm...  3-4 weeks?

I'll take a look at your code, try to remember how exactly I intended
on patching xalloc before I forgot (I put it aside for one week too
many) and see if I can fix it so we can use all the ram in both the
SS10 and in the ts7200 as well...

C.