how to setup PLL1 on 750FX

Benjamin Herrenschmidt benh at
Sat Jun 28 18:23:01 EST 2003

On Sat, 2003-06-28 at 05:05, Chris Studholme wrote:

> My patch is now working quite well for me.  I've got cpufreq working and
> I've verified that the cpu speed actually drops to about half when low
> speed is selected.  I've also modified the patch so the bulk of the code
> is selectable by a config option (CONFIG_BLUECHIP_750FX).  I've included
> the full patch below.  Let me know if you would like any changes to make
> this patch more acceptable for the main linuxppc trees.  Thanks for all
> the help getting this working.

Looks good. Just fix the cpu_setup_6xx.S code so that sleep mode
works properly and it should be ok to merge upstream.


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