El vie, 25-02-2005 a las 15:22 +1100, Benjamin Herrenschmidt escribió:
Hi BenH!
> Wht do you mean ? The half bogomips ? well, it might just be a matter of
> enabling support for your machine in arch/ppc/platforms/pmac_cpufreq.c
> around those lines:
>
> if (machine_is_compatible("PowerBook6,5") ||
> machine_is_compatible("PowerBook6,4") ||
> machine_is_compatible("PowerBook5,5") ||
> machine_is_compatible("PowerBook5,4")) {
> pmac_cpufreq_init_7447A(cpunode);
>
> Though that code will probably think you are running at high speed which
> isn't the case apparently... We probably need to add some code to read
> back the current speed mode from the processor to get the initial speed
> correct or all the kernel delay loops will be broken.
That did the trick, decided to give a try to 2.6.11-rc5 and modified
arch/ppc/platforms/pmac_cpufreq.c to look like this:
/* Check for 7447A based iBook G4 or PowerBook */
if (machine_is_compatible("PowerBook6,8") || /* My CPU */
machine_is_compatible("PowerBook6,5") ||
machine_is_compatible("PowerBook6,4") ||
machine_is_compatible("PowerBook5,5") ||
machine_is_compatible("PowerBook5,4")) {
pmac_cpufreq_init_7447A(cpunode);
Thank's a lot, I can now use full speed (cpufreq works again).
A. Corbi
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