From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753462Ab0CUVlW (ORCPT ); Sun, 21 Mar 2010 17:41:22 -0400 Received: from ns.penguin.cz ([84.21.108.25]:48896 "EHLO ns.penguin.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752169Ab0CUVlU (ORCPT ); Sun, 21 Mar 2010 17:41:20 -0400 Subject: Re: bit errors on spitz From: Stanislav Brabec To: Pavel Machek Cc: Andy Green , Eric Miao , dbaryshkov@gmail.com, Cyril Hrubis , arminlitzel@web.de, kernel list , Dirk@opfer-online.de, lenz@cs.wisc.edu, rpurdie@rpsys.net, linux-arm-kernel , thommycheck@gmail.com, zaurus-devel@www.linuxtogo.org, omegamoon@gmail.com In-Reply-To: <20100321204335.GM1933@elf.ucw.cz> References: <20100305212708.GC21773@elf.ucw.cz> <20100308072858.GA29939@atrey.karlin.mff.cuni.cz> <20100308082530.GA1982@atrey.karlin.mff.cuni.cz> <4B98EF5D.5000609@warmcat.com> <1268322155.3990.114.camel@hammer.suse.cz> <4B995EE1.1050609@warmcat.com> <1268384824.4963.35.camel@utx.utx.cz> <20100321204335.GM1933@elf.ucw.cz> Content-Type: text/plain; charset="ISO-8859-2" Date: Sun, 21 Mar 2010 22:42:33 +0100 Message-ID: <1269207753.13196.53.camel@utx.utx.cz> Mime-Version: 1.0 X-Mailer: Evolution 2.28.2 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pavel Machek píše 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). Alternatively, it is possible to write a driver. It is just one byte write and one byte read via I2C. ________________________________________________________________________ Stanislav Brabec http://www.penguin.cz/~utx/zaurus