From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann 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 Message-ID: <201207261327.49781.arnd@arndb.de> References: <1343208766-8046-1-git-send-email-ygardi@codeaurora.org> <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 Return-path: 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 In-Reply-To: <1343208766-8046-3-git-send-email-ygardi@codeaurora.org> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Yaniv Gardi Cc: linux-mmc@vger.kernel.org, linux-arm-msm@vger.kernel.org, open list 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