[PATCH RFC] ARM: PXA27x: CPUFREQ: Don't use fastbus mode

[Pavel Machek]

Hi!

> >>> PXA27x does not like fastbus for some reason, it can hang in
> >>> random places when it's enabled. So don't use it to make cpufreq
> >>> stable.
> >> This is B/S, you're loosing performance!
> > I'm losing nothing, without this patch cpufreq does not work stable at all on 
> > Zipit Z2.
> 
> Possibly, but Z2 is not the only one using PXA27x.
> And of course you lose performance, unless you don't care,
> because if it does not work at all, you don't care about performance,
> but again it is wrong to force all PXA27x based boards to this.

Well, some other pxa27x machcines  (spitz) are crashing randomly for
_years_ now... so maybe the problem is more widespread?

How easy is to trigger the problem? Do you have script?

Is it possible that this bug triggers with governor==performance.

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