Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756365Ab2FOBzj (ORCPT ); Thu, 14 Jun 2012 21:55:39 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:36665 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755537Ab2FOBzh (ORCPT ); Thu, 14 Jun 2012 21:55:37 -0400 MIME-Version: 1.0 In-Reply-To: References: Date: Fri, 15 Jun 2012 09:55:34 +0800 Message-ID: Subject: Re: MMC: commit dba3c29 ruins mmc card data on beagle-xm revB From: Ming Lei To: "T Krishnamoorthy, Balaji" Cc: linux-mmc@vger.kernel.org, linux-arm-kernel , Linux Kernel Mailing List , Chris Ball , Venkatraman S Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1044 Lines: 30 On Wed, Jun 13, 2012 at 11:28 PM, T Krishnamoorthy, Balaji > > Couldn't reproduce the issue with BeagleXM rev C, Might be a combination > of rev and SD card. How often do you see mis-match in file content? Every time after writing file on file system. After umount and mount again, the file will be found mismatch with original. >From TRM of OMAP3/OMAP4/DM37x, the below is mentioned about the Auto CMD12 Enable bit. - SDIO does not support this feature. - SD card only. So I am wondering if it is suitable to always enable the bit for multiple block transfer in host controller driver. You mean that only SD card is supported by OMAP3/4 and DM37x MMC? I am just confused with the above, even though it may be not related with the problem reported here. Thanks, -- Ming Lei -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/