From: Polyakov Artem <art@sigrand.ru>
To: linux-mtd@lists.infradead.org
Subject: Reading data from NAND FLASH without ECC is not recommended
Date: Mon, 15 May 2006 03:54:23 +0000 [thread overview]
Message-ID: <1147665263.6999.7.camel@localhost> (raw)
Hi all! Sorry for my poor english.
I want to ask - why by default reading from NAND flash provided without
ECC?
I work with Samsung K9F5608U0С 32M flash.
And one interest thing for me is that debug messages show that oob bytes
for ECC are used by system. I mean, after eraseing - all bytes are 0xFF.
But my debug messages shows this:
> write oob(00001890): 65 55 97 5a ffff 69 57 ff ff ff ff ff ff ff ff
bytes for ECC are not equal 0xFF!
but system dont use this bytes for ECC correction:
> Reading data from NAND FLASH without ECC is not recommended
next reply other threads:[~2006-05-15 6:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-15 3:54 Polyakov Artem [this message]
2006-05-16 23:36 ` Reading data from NAND FLASH without ECC is not recommended David Woodhouse
2006-05-17 7:28 ` Re[2]: " art
2006-05-17 9:47 ` David Woodhouse
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