From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarkko Nikula Subject: Re: Is anybody else having problems with SDHC cards on Beagleboard? Date: Wed, 21 Jan 2009 09:34:44 +0200 Message-ID: <20090121093444.314804f6.jarkko.nikula@nokia.com> References: <1232455118.6982.14.camel@surfer> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from smtp.nokia.com ([192.100.122.233]:18389 "EHLO mgw-mx06.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755374AbZAUHe5 (ORCPT ); Wed, 21 Jan 2009 02:34:57 -0500 In-Reply-To: <1232455118.6982.14.camel@surfer> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: ext David Hagood Cc: "linux-omap@vger.kernel.org" On Tue, 20 Jan 2009 06:38:38 -0600 "ext David Hagood" wrote: > I have been trying to bring up a Beagleboard as a development platform > for a project at work, but I am having a killer problem: any significant > access of the memory card (a class 8 SDHC 8G card) will die with a > transfer error, followed by about 10 failed sector accesses, followed by > the system dying. > > I've tried 2 different Beagleboards and 3 different cards by 2 different > manufacturers, and the problem is repeatable on all permutations. I've > put the cards into a card reader on my workstation and done a "dd > if=/dev/sdf of=/dev/null" to verify the cards aren't wedged. > For me both 2 GB microSD and 8 GB class 4 microSDHC cards are working fine. E.g. no problems with these commands: dd if=/dev/zero of=foo bs=1M count=500 dd if=foo of=/dev/null My linux-omap head is commit 45e5c5ffd32ade5a21a5e87b4040072590ec3ae1 Merge: c699464... 1de9e8e... Author: Tony Lindgren Date: Sun Jan 18 14:08:53 2009 +0200 Merge current mainline tree into linux-omap tree And kernel is built with "make omap3_beagle_defconfig". Jarkko