From: Boris Brezillon <boris.brezillon@free-electrons.com>
To: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
linux-mtd@lists.infradead.org, Andrea Scian <rnd4@dave-tech.it>,
Richard Weinberger <richard@nod.at>
Subject: Re: [RESEND PATCH v3 4/5] mtd: nand: make 'erased check' optional
Date: Thu, 3 Sep 2015 19:19:52 +0200 [thread overview]
Message-ID: <20150903191952.72b556cd@bbrezillon> (raw)
In-Reply-To: <1441296222-14989-5-git-send-email-boris.brezillon@free-electrons.com>
On Thu, 3 Sep 2015 18:03:41 +0200
Boris Brezillon <boris.brezillon@free-electrons.com> wrote:
> Some ECC controllers do not need the extra 'erased check' done by the core.
> Make it optional by creating a new NAND_ECC_DISABLE_ERASED_CHECK flag.
>
> Reed-Solomon ECC engines are guaranteed to generate ff ECC bytes when the
> page in empty and are thus able to fix bitflips in erased pages.
s/Reed-Solomon/Hamming/
--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2015-09-03 17:21 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-03 16:03 [RESEND PATCH v3 0/5] mtd: nand: properly handle bitflips in erased pages Boris Brezillon
2015-09-03 16:03 ` [RESEND PATCH v3 1/5] mtd: nand: add nand_check_erased helper functions Boris Brezillon
2015-09-16 7:54 ` Boris Brezillon
2015-09-21 22:45 ` Brian Norris
2015-09-03 16:03 ` [RESEND PATCH v3 2/5] mtd: nand: return consistent error codes in ecc.correct() implementations Boris Brezillon
2015-09-21 23:10 ` Brian Norris
2015-09-22 7:54 ` Boris Brezillon
2015-09-03 16:03 ` [RESEND PATCH v3 3/5] mtd: nand: use nand_check_erased_ecc_chunk in default ECC read functions Boris Brezillon
2015-09-21 23:45 ` Brian Norris
2015-09-22 8:02 ` Boris Brezillon
2015-09-03 16:03 ` [RESEND PATCH v3 4/5] mtd: nand: make 'erased check' optional Boris Brezillon
2015-09-03 17:19 ` Boris Brezillon [this message]
2015-09-21 23:30 ` Brian Norris
2015-09-22 8:04 ` Boris Brezillon
2015-09-03 16:03 ` [RESEND PATCH v3 5/5] mtd: nand: remove custom 'erased check' implementation Boris Brezillon
2015-09-21 23:28 ` Brian Norris
2015-09-22 8:08 ` Boris Brezillon
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