From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Ball Subject: Re: [PATCH] mmc: Reduce fOD to 200 kHz if possible Date: Wed, 15 Sep 2010 14:57:19 +0100 Message-ID: <20100915135719.GA1677@void.printf.net> References: <1284541140-7328-1-git-send-email-haavard.skinnemoen@atmel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from void.printf.net ([89.145.121.20]:58964 "EHLO void.printf.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752344Ab0ION5Z (ORCPT ); Wed, 15 Sep 2010 09:57:25 -0400 Content-Disposition: inline In-Reply-To: <1284541140-7328-1-git-send-email-haavard.skinnemoen@atmel.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Haavard Skinnemoen Cc: linux-mmc@vger.kernel.org, Sascha Hauer , linux-kernel@vger.kernel.org Hi Haavard, On Wed, Sep 15, 2010 at 10:59:00AM +0200, Haavard Skinnemoen wrote: > Since the identification frequency was increased to 400 kHz, my > ATSTK1000 board has not been able to initialize any MMC or SD cards. > Reducing the identification mode frequency to 200 kHz fixes the problem. Good news -- there's already a patch to fix this in -mm. Please test http://article.gmane.org/gmane.linux.kernel.commits.mm/62969 and let us know whether it works for you. -- Chris Ball One Laptop Per Child