Re: [iPAQ] Cpu scaling ??

On Sun, Jan 06, 2002 at 06:37:14PM +0000, bob lees wrote:
> On my machine, Ipaq 3765, this appears to be in /proc/sys/cpu/0/speed, is
> this the same reference?

Yes, that's the same. I forgot the 'sys' part.

> If so when I use, for example, "echo [-n] 191700 > speed" the value doesn't
> change. I take it from the comments and contents of sa1100_dram_settings
> that this should change the cpu speed. I am running a home built kernel from
> cvs checkout on 27 December.

Ipaq is not yet supported, somebody with exact knowledge of the memory
parameters (i.e.: the Compaq people) should put a struct sdram_params
for each Ipaq in cpu-sa1110.c.

> Looking at the Makefile in arch/arm/mach-sa1100/ it appears that
> "CONFIG_SA1100_LART" needs to be set to get cpu-sa1100.c compiled. In my
> fairly stock .config, from the default 3600 config a la Jamey, this is not
> set. From the help notes it shouldn't be, I'm not running a LART. So should
> this compile option be tied to a different config item or items or should I
> be defining LART and if so will this have a detrimental effect on the rest of
> my 3600 operation??

The Ipaq uses an SA1110 CPU, so you need cpu-sa1110.c instead of
cpu-sa1100.c.

Erik

-- 
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Faculty
of Information Technology and Systems, Delft University of Technology,
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