From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: bit errors on spitz
Date: Mon, 29 Mar 2010 20:27:36 +0200 [thread overview]
Message-ID: <20100329182736.GA1373@ucw.cz> (raw)
In-Reply-To: <1269207753.13196.53.camel@utx.utx.cz>
On Sun 2010-03-21 22:42:33, Stanislav Brabec wrote:
> Pavel Machek p??e v Ne 21. 03. 2010 v 21:43 +0100:
> > On Fri 2010-03-12 10:07:04, Stanislav Brabec wrote:
>
> > > > > 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?
>
> If you are ready to run Zaurus in dismantled state, then yes. Measure on
> the upper pin of the large coil in the center of the
> http://www.penguin.cz/~utx/zaurus/pcbt_uc.jpg image or on the testpoint
> nearby (probably to the right).
I'm not comfortable dismantling it :-(.
> Alternatively, it is possible to write a driver. It is just one byte
> write and one byte read via I2C.
Do you know what byte it is? That sounds easy enough...
But I have small problem now -- zaurus seems to work mostly fine
now. Does it depend on temperature, or what? Tried mtest,
nothing. Tried compiling kernel, ok... Will try few more times...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2010-03-29 18:27 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-05 21:27 bit errors on spitz Pavel Machek
2010-03-08 5:37 ` Eric Miao
2010-03-08 7:28 ` Pavel Machek
2010-03-08 8:25 ` Cyril Hrubis
2010-03-08 11:48 ` Stanislav Brabec
2010-03-08 12:16 ` Cyril Hrubis
2010-03-08 12:42 ` Russell King - ARM Linux
2010-03-08 13:32 ` Cyril Hrubis
2010-06-03 0:01 ` [URGENT] Re: bit errors on spitz + voipac Marek Vasut
2010-06-03 2:30 ` Eric Miao
2010-03-21 20:40 ` bit errors on spitz Pavel Machek
2010-03-11 13:25 ` Andy Green
2010-03-11 15:42 ` Stanislav Brabec
2010-03-11 21:21 ` Andy Green
2010-03-12 9:07 ` Stanislav Brabec
2010-03-12 9:33 ` Andy Green
2010-03-12 10:43 ` Stanislav Brabec
2010-03-12 11:13 ` Andy Green
2010-03-21 20:43 ` Pavel Machek
2010-03-21 21:42 ` Stanislav Brabec
2010-03-29 18:27 ` Pavel Machek [this message]
2010-03-29 18:52 ` Stanislav Brabec
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