From: Arnd Bergmann <arnd@arndb.de>
To: Yaniv Gardi <ygardi@codeaurora.org>
Cc: linux-mmc@vger.kernel.org, linux-arm-msm@vger.kernel.org,
open list <linux-kernel@vger.kernel.org>
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 [thread overview]
Message-ID: <201207261327.49781.arnd@arndb.de> (raw)
In-Reply-To: <1343208766-8046-3-git-send-email-ygardi@codeaurora.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 <ygardi@codeaurora.org>
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
prev parent reply other threads:[~2012-07-26 21:44 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-25 9:32 [PATCH v8 0/2] *** adding and exposing SANITIZE capability to the user space via a unique IOCTL *** Yaniv Gardi
2012-07-25 9:32 ` [PATCH v8 1/2] block: ioctl support for sanitize in eMMC 4.5 Yaniv Gardi
2012-07-25 10:41 ` merez
2012-07-26 13:36 ` Arnd Bergmann
2012-09-09 12:12 ` Yaniv Gardi
2012-07-25 9:32 ` [PATCH v8 2/2] mmc: card: Adding " Yaniv Gardi
2012-07-25 11:06 ` merez
2012-07-26 13:27 ` Arnd Bergmann [this message]
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