On Fri 2010-03-12 10:07:04, Stanislav Brabec wrote:
> Andy Green wrote:
> > On 03/11/10 15:42, Somebody in the thread at some point said:
> > > Andy Green wrote:
> > >
> > >> I saw very similar failures for a long time on our iMX31 based device.
> > >> Eventually I found a Freescale errata where the RAM inside the USB2
> > >> macrocell started to make single bit errors below 1.38V Vcore; ours was
> > >> 1.4V at that time but dipped on CPU load.
> > >
> > > Good tip. It seems that nobody ported driver for the voltage control
> > > chip ISL6271 from 2.4 kernel, and bootloader probably does not set
> > > correct values.
Are we sure about this one? If we have wrong voltages on various
parts, that kind-off explains it.
Would it be possible to measure (Voltmeter) difference between 2.4
kernel and 2.6 kernel?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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