Timer (problem?) startup on at91rm9200

Marek Vasut marek.vasut at gmail.com
Tue Oct 25 05:44:49 EDT 2011

> Hello!
> I'm experiencing a problem where right after "Uncompressing linux..."
> the output on the debug serial is heavily garbled, e.g.: random characters.
> With a logic analyzer, i've been able to read it nevertheless, after
> tweaking the analyzers baud rade to 110k instead of 115.2k.
> The output in general looks pretty fine, the only thing that is clearly
> different is the BogoMIPS "measurement". On a good board, it show
> roughly 89, on the board experiencing problems it only read about 32.
> So my guess is now that there's something fishy with the timers startup,
> or the startup proceeds before the pll is locked. Can anyone comment on
> this, or has similar experiences?
> PS: all tests done with linux 3.0.

Hi Joe,

you better send this to linux-arm-kernel and also CC the guys from MAINTAINERS 
file related to at91. They are likely to help you.


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