From: llandre <r&d2@dave-tech.it>
To: Ricard Wanderlof <ricard.wanderlof@axis.com>
Cc: Ram <vshrirama@gmail.com>, linux-mtd@lists.infradead.org
Subject: Re: Micron NAND support in linux MTD
Date: Mon, 21 Jan 2008 12:21:25 +0100 [thread overview]
Message-ID: <47948035.8040903@dave-tech.it> (raw)
In-Reply-To: <Pine.LNX.4.64.0801211105440.25733@lnxricardw.se.axis.com>
>> if JFFS2/MTD check first page only. Datasheet says:
>>
>> "The factory identifies invalid blocks before shipping by programming
>> data other than FFh (x8) or FFFFh (x16) into the first spare location
>> (column address 2,048 for x8 devices, or 1,024 for x16 devices) *of
>> the first or second page of each bad block*."
>
> The option of programming the second page is probably a last resort in
> case the first page is so bad that it cannot be programmed at all, which
> I would think is most unlikely.
I think your point is reasonable. I'd like to hear someone from Samsung
or Micron to confirm your speculation ...
--
llandre
DAVE Electronics System House - R&D Department
web: http://www.dave.eu
email: r&d2@dave-tech.it
next prev parent reply other threads:[~2008-01-21 11:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-18 10:18 Micron NAND support in linux MTD llandre
2008-01-18 15:45 ` Ram
2008-01-21 9:51 ` llandre
2008-01-21 10:06 ` Ricard Wanderlof
2008-01-21 11:21 ` llandre [this message]
2008-01-21 11:45 ` Ricard Wanderlof
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