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[ts-7000] Re: Changing HZ on 7800

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Subject: [ts-7000] Re: Changing HZ on 7800
From: "charliem_1216" <>
Date: Wed, 09 Jan 2008 04:15:58 -0000
--- In  "JD" <> wrote:
>
> Im running menuconfig on the kernel options, but there isnt 
anywhere
> to set CONFIG_HIGH_RES_TIMERS. 
> 
> 
> --- In  "charliem_1216" <charliem_1216@> 
wrote:
> >
> > --- In  "JD" <john.donoghue@> wrote:
> > >
> > > Looking at time_list, it lists the resolution as 10000000 ns 
so I
> > > guess it isnt fully implemented in the kernel?
> > > 
> > > Or i need do something else?
> > 
> > Reconfigure your kernel, making sure CONFIG_HIGH_RES_TIMERS is 
set,
> > then recompile.
> > 
> > I would have thought TS would enable this by default, if it runs 
on a
> > TS-7800.  I'm sure other TS-7800 users would be interested in 
your
> > results; it seems the 10 mS granularity is a common problem for 
TS
> > board users.
> > 
> > Regards, ........ Charlie
> >
>

Sorry.  Looking closer, CONFIG_HIGH_RES_TIMERS depends on 
GENERIC_TIME and GENERIC_CLOCKEVENTS, and the patch that supports 
that for the Marvell chips is not in the vanilla kernel yet.

Lots of Orion code is set to be merged in vanilla kernel in the next 
one or two merge windows, but alas no TS board support yet.  If you 
want to try out the orion code, see:
http://marc.info/?l=linux-arm-kernel&m=119447736131404&w=2

So, you could either wait for orion stuff to hit upstream kernel and 
write the board setup file for the ts-7800, or back-port the orion 
system timer to the TS-2.6.21 kernel:
http://marc.info/?l=linux-arm-kernel&m=119577839815090&w=2

Again, sorry for the confusion.

Regards, ........... Charlie




 
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