Re: CardBus testers needed

[Matthias Drochner <M.Drochner%fz-juelich.de@localhost>]

tls%panix.com@localhost said:
> I don't know about the last parallel-PCI specs, but there were
> certainly intermediate versions of the spec which many vendors read as
> requiring merely that the BIOS configure devices actually required in
> order to boot, in the as-shipped system configuration.

I believe the whole "firmware requirements" chapter has been given
up on and delegated to platform specific standards after ~PCI-2.0.
"Sane" systems do still lay out and map the PCI space. This is
reasonable because a a device potentially needed for boot can be
found anywhere in the middle of the PCI bus hierarchy, and once
a device is mapped and used it is hard to change its address if
other devices left or right from it need space.
Even my MicroTCA systems which have a quite deep PCIexpress tree
initialize all the bridges and work with NetBSD without problems.
(without need for the *FIXUP* options)

> I wouldn't be surprised at all to
> see a vendor interpret the same spec such that they didn't have to
> set up the mappings for the PCI-CardBus bridge

I'm not surprised at all. PCI-Cardbus bridges are outside the scope
of the PCI spec.

best regards
Matthias



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