From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753164Ab2GZVpE (ORCPT ); Thu, 26 Jul 2012 17:45:04 -0400 Received: from moutng.kundenserver.de ([212.227.126.187]:57537 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753170Ab2GZVo7 (ORCPT ); Thu, 26 Jul 2012 17:44:59 -0400 From: Arnd Bergmann To: Yaniv Gardi Subject: Re: [PATCH v8 2/2] mmc: card: Adding support for sanitize in eMMC 4.5 Date: Thu, 26 Jul 2012 13:27:49 +0000 User-Agent: KMail/1.12.2 (Linux/3.5.0; KDE/4.3.2; x86_64; ; ) Cc: linux-mmc@vger.kernel.org, linux-arm-msm@vger.kernel.org, open list References: <1343208766-8046-1-git-send-email-ygardi@codeaurora.org> <1343208766-8046-3-git-send-email-ygardi@codeaurora.org> In-Reply-To: <1343208766-8046-3-git-send-email-ygardi@codeaurora.org> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201207261327.49781.arnd@arndb.de> X-Provags-ID: V02:K0:NAgf0uDackCHRaWtT+OO+SGUcuDwQ1qipLOz+FCZQKD 6BviQIT9xD6hMaalGJSx7tlLxThT6QHzslluv/EYTsOE3nyA19 /kfLo2huSJ5kjudQANuu4ZJO4I9Zk+xFW7egLX6sc3M9GpvJwq 0LLLQvwH2aJF1kOKsZVWWnzZ4mtahJ5zP8lNHVi+bUq1CMEwp7 t1oXmM/WIFSbNGGVA8RuBDWcOcmtR3kkbNm8AcXwvXcAf1bofq ybKffFPriE54dVuYYS/xHG46gpDahOwFnbB5FriPWlX/o2Ops8 DzUCrbGyO7VDvmJ7UU4Pnbh1zmz8bZ3yKgMr+5vsUQHi5lCgEB pHhZLKffn8UhtH+VEKyE= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 25 July 2012, Yaniv Gardi wrote: > This feature delete the unmap memory region of the eMMC card, > by writing to a specific register in the EXT_CSD > unmap region is the memory region that were previously deleted > (by erase, trim or discard operation) > > Signed-off-by: Yaniv Gardi This looks like it will only work for eMMC-4.5 but not for SD-3.01, which offers the same funcitonality in the form of the "start recording" option to CMD20. Is there any reason why you would want to implement one but not the other? Arnd