From: Vojtech Pavlik <vojtech@suse.cz>
Date: Sun, 24 Feb 2002 23:39:37 +0100
> > happens if you plug in a 66MHz non-capable card to the 50 MHz bus.
>
> The bus speed drops to 33MHz.
Interesting. I'd expect 25 myself ... then we'll definitely need two
clock values in struct pci_bus - because the hi-speed one isn't always a
double the low one - as shown by your example.
You only need one, the current active one.
If you think that hot-plug is an issue, the arch dependant could would
need to recalculate the "current bus speed" and all would be fine.
So why do we need two values?
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