From: Artem Bityutskiy <dedekind1@gmail.com>
To: Huang Shijie <b32955@freescale.com>
Cc: linux-mtd@lists.infradead.org, computersforpeace@gmail.com,
dwmw2@infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 01/11] mtd: add datasheet's ECC information to nand_chip{}
Date: Wed, 15 May 2013 15:11:57 +0300 [thread overview]
Message-ID: <1368619917.15764.99.camel@sauron.fi.intel.com> (raw)
In-Reply-To: <1368607232-2210-2-git-send-email-b32955@freescale.com>
On Wed, 2013-05-15 at 16:40 +0800, Huang Shijie wrote:
> + * @ecc_strength: [INTERN] ECC correctability from the datasheet.
> + * Minimum amount of bit errors per @ecc_step guaranteed to
> + * be correctable. If unknown, set to zero.
> + * @ecc_step: [INTERN] ECC step required by the @ecc_strength,
> + * also from the datasheet. It is the recommended ECC step
> + * size, if known; if unknown, set to zero.
Here and in other places you talk about "datasheet". Do you assume that
the real ECC strength/step used by NAND chips may be different? Or you
assume it must be the same?
--
Best Regards,
Artem Bityutskiy
WARNING: multiple messages have this Message-ID (diff)
From: Artem Bityutskiy <dedekind1@gmail.com>
To: Huang Shijie <b32955@freescale.com>
Cc: dwmw2@infradead.org, computersforpeace@gmail.com,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 01/11] mtd: add datasheet's ECC information to nand_chip{}
Date: Wed, 15 May 2013 15:11:57 +0300 [thread overview]
Message-ID: <1368619917.15764.99.camel@sauron.fi.intel.com> (raw)
In-Reply-To: <1368607232-2210-2-git-send-email-b32955@freescale.com>
On Wed, 2013-05-15 at 16:40 +0800, Huang Shijie wrote:
> + * @ecc_strength: [INTERN] ECC correctability from the datasheet.
> + * Minimum amount of bit errors per @ecc_step guaranteed to
> + * be correctable. If unknown, set to zero.
> + * @ecc_step: [INTERN] ECC step required by the @ecc_strength,
> + * also from the datasheet. It is the recommended ECC step
> + * size, if known; if unknown, set to zero.
Here and in other places you talk about "datasheet". Do you assume that
the real ECC strength/step used by NAND chips may be different? Or you
assume it must be the same?
--
Best Regards,
Artem Bityutskiy
next prev parent reply other threads:[~2013-05-15 12:09 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-15 8:40 [PATCH v5 00/11] mtd: add datasheet's ECC information to nand_chip{} Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 8:40 ` [PATCH v5 01/11] " Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 12:11 ` Artem Bityutskiy [this message]
2013-05-15 12:11 ` Artem Bityutskiy
2013-05-16 2:16 ` Huang Shijie
2013-05-16 2:16 ` Huang Shijie
2013-05-16 7:14 ` Artem Bityutskiy
2013-05-16 7:14 ` Artem Bityutskiy
2013-05-16 8:06 ` Huang Shijie
2013-05-16 8:06 ` Huang Shijie
2013-05-16 9:36 ` Artem Bityutskiy
2013-05-16 9:36 ` Artem Bityutskiy
2013-05-16 10:46 ` Huang Shijie
2013-05-16 10:46 ` Huang Shijie
2013-05-15 8:40 ` [PATCH v5 02/11] mtd: increase max OOB size to 744 Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 12:12 ` Artem Bityutskiy
2013-05-15 12:12 ` Artem Bityutskiy
2013-05-15 8:40 ` [PATCH v5 03/11] mtd: get the ECC info from the parameter page for ONFI nand Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 17:04 ` Vikram Narayanan
2013-05-16 2:21 ` Huang Shijie
2013-05-15 8:40 ` [PATCH v5 04/11] mtd: add data structures for Extended Parameter Page Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 8:40 ` [PATCH v5 05/11] mtd: add a helper to get the supported features for ONFI nand Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 8:40 ` [PATCH v5 06/11] mtd: get the ECC info from the Extended Parameter Page Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 16:57 ` Vikram Narayanan
2013-05-16 2:37 ` Huang Shijie
2013-05-16 4:42 ` [PATCH v5 fix] " Huang Shijie
2013-05-16 4:42 ` Huang Shijie
2013-05-15 8:40 ` [PATCH v5 07/11] mtd: replace the hardcode with the onfi_feature() Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 8:40 ` [PATCH v5 08/11] mtd: add ECC info for nand_flash_dev{} Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 8:40 ` [PATCH v5 09/11] mtd: parse out the ECC info for the full-id nand chips Huang Shijie
2013-05-15 8:40 ` Huang Shijie
2013-05-15 16:54 ` Vikram Narayanan
2013-05-16 2:40 ` Huang Shijie
2013-05-15 8:54 ` [PATCH v5 10/11] mtd: add the ecc info for some " Huang Shijie
2013-05-15 8:54 ` Huang Shijie
2013-05-15 8:54 ` [PATCH v5 11/11] mtd: gpmi: set the BCH's geometry with the ecc info Huang Shijie
2013-05-15 8:54 ` Huang Shijie
2013-05-15 16:31 ` Vikram Narayanan
2013-05-16 2:46 ` Huang Shijie
2013-05-16 4:49 ` [PATCH v5 fix] " Huang Shijie
2013-05-16 4:49 ` Huang Shijie
2013-05-15 10:05 ` [PATCH v5 00/11] mtd: add datasheet's ECC information to nand_chip{} Artem Bityutskiy
2013-05-15 10:05 ` Artem Bityutskiy
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