From: Seungwon Jeon <tgih.jun@samsung.com>
To: 'Chris Ball' <cjb@laptop.org>
Cc: linux-mmc@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
kgene.kim@samsung.com, dh.han@samsung.com
Subject: RE: [PATCH] mmc: core: Fix the incorrect calculation for erase unit size.
Date: Wed, 14 Sep 2011 11:27:26 +0900 [thread overview]
Message-ID: <002f01cc7285$d80dc660$88295320$%jun@samsung.com> (raw)
In-Reply-To: <m24o0n6ujm.fsf@bob.laptop.org>
Chris Ball wrote:
>
> Hi,
>
> On Thu, Sep 08 2011, Seungwon Jeon wrote:
> > Erase unit size of high capacity is multiple of 512KiB not 1024KiB.
>
> Could we have some more info, please? What are the visible symptoms
> of the erase unit size being incorrect, how did you realize this was
> a problem, should this patch be applied to stable@, etc.
It is mentioned from eMMC Spec.
Erase unit size is defined in 512Kbyte * HC_ERASE_GRP_SIZE(EXT_CSD[224]).
Thanks.
>
> Thanks,
>
> - Chris.
> --
> Chris Ball <cjb@laptop.org> <http://printf.net/>
> One Laptop Per Child
next prev parent reply other threads:[~2011-09-14 2:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-08 5:59 [PATCH] mmc: core: Fix the incorrect calculation for erase unit size Seungwon Jeon
2011-09-08 6:39 ` Kyungmin Park
2011-09-08 13:19 ` Chris Ball
2011-09-14 2:27 ` Seungwon Jeon [this message]
2011-09-14 2:29 ` Chris Ball
2011-09-14 3:50 ` Seungwon Jeon
2011-09-08 20:27 ` J Freyensee
2011-09-11 17:32 ` ajh mls
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