From owner-freebsd-arm@FreeBSD.ORG Fri Sep 27 17:03:14 2013 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id EACBF19B for ; Fri, 27 Sep 2013 17:03:14 +0000 (UTC) (envelope-from ticso@cicely7.cicely.de) Received: from raven.bwct.de (raven.bwct.de [85.159.14.73]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 628362DF7 for ; Fri, 27 Sep 2013 17:03:13 +0000 (UTC) Received: from mail.cicely.de ([10.1.1.37]) by raven.bwct.de (8.13.4/8.13.4) with ESMTP id r8RH308W025414 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 27 Sep 2013 19:03:00 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (cicely7.cicely.de [10.1.1.9]) by mail.cicely.de (8.14.5/8.14.4) with ESMTP id r8RH2l7n022731 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 27 Sep 2013 19:02:47 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (localhost [127.0.0.1]) by cicely7.cicely.de (8.14.2/8.14.2) with ESMTP id r8RH2l6f083348; Fri, 27 Sep 2013 19:02:47 +0200 (CEST) (envelope-from ticso@cicely7.cicely.de) Received: (from ticso@localhost) by cicely7.cicely.de (8.14.2/8.14.2/Submit) id r8RH2lI6083347; Fri, 27 Sep 2013 19:02:47 +0200 (CEST) (envelope-from ticso) Date: Fri, 27 Sep 2013 19:02:47 +0200 From: Bernd Walter To: Martin Laabs Subject: Re: Raspberry PI sporadically fails to mount mmc card Message-ID: <20130927170246.GA82284@cicely7.cicely.de> References: <521D92CA.8050008@martinlaabs.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <521D92CA.8050008@martinlaabs.de> X-Operating-System: FreeBSD cicely7.cicely.de 7.0-STABLE i386 User-Agent: Mutt/1.5.11 X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED=-1, BAYES_00=-1.9, T_RP_MATCHES_RCVD=-0.01 autolearn=unavailable version=3.3.0 X-Spam-Checker-Version: SpamAssassin 3.3.0 (2010-01-18) on spamd.cicely.de Cc: freebsd-arm X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: ticso@cicely.de List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Sep 2013 17:03:15 -0000 On Wed, Aug 28, 2013 at 08:03:54AM +0200, Martin Laabs wrote: > Hi, > > Sporadically the raspberry pi fails to mount its root mmc card. After power > off and power on again it works most of the time. However there seem to be > also configurations that fail permanently. Unfortunately I have no image of > a sd card that fails on every boot. I see a similar very strange thing. 6 Raspi (256MB Eth Version) bought at the same time from same batch. 6 identic 8GB Transcent SD cards bought at the same time and likely also same batch. Used one card to copy crochet build image from r255729 source. Booting fine, but identified as 1bit: mmcsd0: 8GB at mmc0 25.0MHz/1bit/65535-block On reboot it fails, but works on next boot without power down. I'd tuned the installation and copy'ed the card to the 5 others. None of the others were booting in the other raspi boards, but the original card still worked in the original raspi. All systems are running with power from same USB-hub. Then I'd placed the working card in anther raspi and it failed as well: mmcsd0: 8GB at mmc0 50.0MHz/4bit/65535-block mmcsd0: Error indicated: 1 Timeout However it is probed with 4bit and higher bitrate. This must be a very marginal problem when identic systems either work or not. Since the working condition is probed as 1 bit I wonder if there is a generel 4 bit problem and addtional this single combo probes wrong as 1 bit? -- B.Walter http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.