Re: [PATCH] Added support for OMAP35x processor series

[Tony Lindgren <tony@atomide.com>]

* Kridner, Jason <jdk@ti.com> [080805 17:12]:
> No, ROM CRC is useful for detecting between some device revisions, but not OMAp3430 vs OMAP3530.
>
> ----- Original Message -----
> From: Koen Kooi <k.kooi@student.utwente.nl>
> To: linux-omap@vger.kernel.org <linux-omap@vger.kernel.org>
> Cc: Kridner, Jason
> Sent: Tue Aug 05 05:10:40 2008
> Subject: Re: [PATCH] Added support for OMAP35x processor series
> 
> 
> Op 5 aug 2008, om 11:50 heeft Igor Stoppa het volgende geschreven:
> 
> > On Tue, 2008-08-05 at 15:09 +0530, ext Premi, Sanjeev wrote:
> >> This patch is needed to ensure that we can make decisions based on
> >> the processor capabilities.
> >> E.g. OMAP3503 does not contain a DSP. We shouldn't be trying to
> >> disable/ manage the clocks for
> >> DSP on this processor. Same for SGX.
> >
> > Why can't the detection happen at runtime?
> 
> AIUI the ID bits are the same (linux misdetect the 3530 on my beagle
> for a 3430). I heard that the only definitive way to do it at runtime
> is to CRC check the ROM code.
> 
> Jason, is that correct?

Well if there's no way to detect certain omaps during runtime, please
patch arch/arm/plat-omap/common.c to have something like struct
omap_globals omap3503_globals.

BTW, why can't the dsp code detect if the DSP is there or not?

Tony



> 
> regards,
> 
> Koen
> 
> >> Enabling NEON is support iby default is just based on the number of
> >> requests I have been getting
> >> from various users.
> >
> > Huh?
> >
> >
> > --
> >
> > Cheers, Igor
> >
> > ---
> >
> > Igor Stoppa
> > Maemo Software - Nokia Devices R&D - Helsinki
> > --
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> >
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