[U-Boot-Users] [PATCH 4/4] TQM885D: Use the OSCM, feeded by EXTAL = 10 MHz.

[Martin Krause]

wd at denx.de wrote on Monday, July 30, 2007 5:42 PM:
> In message <20070724085849.20151.20950.stgit at tq-sewsrv-4.tq-net.de>
> you wrote: 
> > From: Jens Gehrlein <jens.gehrlein at tqs.de>
> > 
> > This makes it necessary to prescale PITCLK by 512.
> > 
> > This patch is necessary for revision 102 and above of the TQM885D.
> > Revisions 100 and 101 of the TQM885D will not work with this patch
> > applied. But this should not be a problem, since there are only
> > a few prototypes of this revisions floating around.
> > 
> > Signed-off-by: Jens Gehrlein <jens.gehrlein at tqs.de>
> > Signed-off-by: Martin Krause <martin.krause at tqs.de>
> 
> NAK by Wolfgang Denk.
> 
> > diff --git a/cpu/mpc8xx/speed.c b/cpu/mpc8xx/speed.c
> > index 101d5f9..4173092 100644
> > --- a/cpu/mpc8xx/speed.c
> > +++ b/cpu/mpc8xx/speed.c
> > @@ -93,11 +93,23 @@ unsigned long measure_gclk(void)  	ulong
> > msr_val; 
> > 
> >  #ifdef CFG_8XX_XIN
> > +#ifdef CONFIG_TQM885D
> 
> I don't allow for board specific code in that file (and please get rid

Does this mean, I should make the code cpu specific instead (like
#ifdef CONFIG_MPC885)?

Our TQM885D board uses an external 10 MHz oscillator on EXTAL 
(-> OSCM = 10 MHz). But measure_gclk() is assumeing that, if OSCM
is used as clock source, it has a frequency of 32768 Hz (wich seems
to be true for all other MPC8xx boards).

Best Regards,
Martin Krause

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