From: dedekind1@gmail.com (Artem Bityutskiy)
To: linux-arm-kernel@lists.infradead.org
Subject: GPMI-NAND Status?
Date: Mon, 15 Aug 2011 19:22:13 +0300 [thread overview]
Message-ID: <1313425340.8691.34.camel@sauron> (raw)
In-Reply-To: <20110814081139.GD17063@parrot.com>
On Sun, 2011-08-14 at 10:11 +0200, Ivan Djelic wrote:
> On Fri, Aug 05, 2011 at 02:51:33PM +0100, Wolfram Sang wrote:
> (...)
> >
> > problem overwriting all-0xff data in NAND [2]
> > =============================================
> >
> > Although it occured only when writing JFFS2 images so far, this is a generic
> > issue and needs to be fixed, right?
> >
> >
> (...)
> > [2] http://lists.infradead.org/pipermail/linux-mtd/2011-July/037104.html
>
> As explained in the thread linked above, this issue should be fixed in your
> flashing tool, _not_ in your driver. The nand device you are using does not
> support programming pages multiple times in a row; pretending it does in the
> special all-0xff case is inefficient (you need to detect all-0xff data) and
> unnecessary (just do not program blank pages !).
Hmm, isn't it also buggy because if my precious data contains 2KiB of
0xFFs (aligned to 2KiB boundary) then I will have no ECC protection for
this page? Or I miss something?
--
Best Regards,
Artem Bityutskiy
next prev parent reply other threads:[~2011-08-15 16:22 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-05 13:51 GPMI-NAND Status? Wolfram Sang
2011-08-08 6:21 ` Huang Shijie
2011-08-08 9:19 ` Koen Beel
2011-08-08 10:37 ` Huang Shijie
2011-08-08 12:42 ` Koen Beel
2011-08-09 6:36 ` Huang Shijie
2011-08-09 7:58 ` Koen Beel
2011-08-09 8:18 ` Huang Shijie
2011-08-09 8:25 ` Koen Beel
2011-08-09 5:11 ` Huang Shijie
2011-08-09 6:25 ` Koen Beel
2011-08-09 6:40 ` Huang Shijie
2011-08-09 9:45 ` Wolfram Sang
2011-08-09 9:35 ` Wolfram Sang
2011-08-09 10:54 ` Huang Shijie
2011-08-09 20:42 ` Wolfram Sang
2011-08-08 9:12 ` Huang Shijie
2011-08-09 9:19 ` Wolfram Sang
2011-08-09 10:41 ` Huang Shijie
2011-08-09 11:36 ` Lothar Waßmann
2011-08-14 8:11 ` Ivan Djelic
2011-08-14 18:31 ` Wolfram Sang
2011-08-15 5:41 ` Lothar Waßmann
2011-08-15 6:30 ` Lin Tony-B19295
2011-08-15 8:41 ` Ivan Djelic
2011-08-15 8:29 ` Ivan Djelic
2011-08-15 9:31 ` Lothar Waßmann
2011-08-15 12:54 ` Ivan Djelic
2011-08-15 13:37 ` Lothar Waßmann
2011-08-15 16:34 ` Artem Bityutskiy
2011-08-15 16:18 ` Artem Bityutskiy
2011-08-15 16:22 ` Artem Bityutskiy [this message]
2011-08-15 16:57 ` Ivan Djelic
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