config tool + tree enumeration

[Stefan Reinauer]

* Eric W. Biederman <ebiederman at lnxi.com> [030929 00:38]:
> And until I have a reason I don't see the point, in making
> a change.
 
Hm. You are right. With some more tests I found out that this 
solution only fixes the problem occasionally. It seems that 
the chance that it works is higher with the number of tries.
Really weird.

> Mostly I suspect this is a matter of keeping the irq tables
> in sync, or something similar where hard codes don't match the dynamic
> assignments.  And if that is the case we need to dig and do a good fix
> instead of papering over the problem.

If LinuxBIOS hangs during CPU/Northbridge enumeration, can this 
really be a matter of irq tables? I thought that they are touched
quite a while later in the setup process.
I suspect it might be connected to the highest bus number set in
the default resource map, but I did not try more in this direction
yet.

Additionally I have Linux moaning that the irq table contains entries
for a bus that does not exist. It's bus 1, that LinuxBIOS and OpenBIOS
find really well, only Linux refuses to see it.

  Stefan

-- 
Architecture Team
    SuSE Linux AG