At 3:16 PM -0500 1/18/05, Allen Briggs wrote:
>15" tibook w/ ADI (800/667MHz)
>	0 > dev /cpu/PowerPC,G4  ok
>	0 > words
>	translate modify unmap map release claim close open ok
>	0 > .properties
>	name			PowerPC,G4
>
>	device_type		cpu
>	reg			00000000
>	cpu-version		80010201
>	state			running
>	clock-frequency		27c19cc0
>	bus-frequency		07f26750
>	timebase-frequency	01fc99d4
>	...
>	force-reduced-speed	00000001
>	min-clock-frequency	27c19cc0
>	max-clock-frequency	2faf0800
>	...
>	0 > see clock-frequency
>	clock-frequency, unknown word
>	 ok
>	0 > see modify
>	: modify
>	  {3} {2@} {1@} {0@} 3 ^ff84.f531  ^ff87.d886  ; ok
>	0 >

So it appears that it is possible to infer the max CPU speed from the
max-clock-frequency property. Modify appears to require four parameters.

Can you send

see open

from the G4 node? The original thread appeared to indicate there were some
words associated with clock-frequency, but perhaps that was a typo.

I'll look over the PLL stuff you mentioned.

>(10-finger copy)
>
>PowerBook 3400:
>0 > dev /cpus/PowerPC,603ev  ok

Does this PB also report a slower speed than expected?

thanks,
tim