Don't the newer G4 CPUs do dynamic frequency scaling instead of just
low/high speed?

On Sun, 9 Oct 2005, Michael wrote:

> Hello,
>
> > > So it got the frequency bit wrong.
> > > Please check the child nodes of mac-io/gpio in your OF device tree,
> > > there should be one named 'frequency-gpio'  - what's its address? On
> > > my iBook G4 it's frequency-gpio@1a, on yours it's probably
> > > different.
> >
> > There is no such node.  mac-io/gpio has the following children:
> >
> > modem-reset@1d
> > modem-power@1c
> > extint-gpio1@9
> > programmer-switch@11
> > cpu-vcore-select@6b
> > gpio4@1e
> > gpio5@6f
> > gpio6@70
> > gpio11@75
> > extint-gpio15@67
>
> Hmm, looks like your iBook can't switch CPU speed this way. Interesting.
> So the hardware differences between 1st and 2nd generation iBook G4 are
> bigger than I thought.
>
> have fun
> Michael
>

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