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From: Dan Brown <dan_brown@ieee.org>
To: Zeri Virgo <zerivirgo@infocell-its.com>
Cc: linux-mtd@lists.infradead.org
Subject: Re: [UPDATE] DOCBoot support for NFTL-based DOC2000
Date: Wed, 06 Apr 2005 12:29:07 -0400	[thread overview]
Message-ID: <42540E53.8080109@ieee.org> (raw)
In-Reply-To: <4253F6C2.1080105@infocell-its.com>

Zeri Virgo wrote:

> mtd.type = MTD_NANDFLASH
> mtd.flags = MTD_CLEAR_BITS | MTD_ERASEABLE | MTD_OOB | MTD_ECC
> mtd.size = 67108864 (64M)
> mtd.erasesize = 16384 (16K)
> mtd.oobblock = 512
> mtd.oobsize = 16
> mtd.ecctype = (unknown ECC type - new MTD API maybe?)
> regions = 0


Looks fine.

> This may be useless, but I did a nanddump of the first 0x208000 bytes.
> 0x00 to 0xff -> data
>
> Then each of the following chunks of data (ie, not chunks of ff) are 
> preceeded by OOB Data
> (eg,
>   OOB Data: 36 7f eb 1f 3b aa ff ff ff ff ff ff ff ff ff ff
> 0x000000200: 0e cd...)
>
> 0x200 to 0x2ff -> data
> 0x400 to 0x43a -> data
> 0x600 to 0x629 -> data
> 0x800 to 0x8ff -> data
> 0xa00 to 0xa75 -> data
>
> Then a large chunk (1144949 bytes)
> 0xc00 to 0x119075 -> data
>
> Some mysterious OOB Data before 0x119200, though no normal data 
> following it.
>
> Then the rest is blank.


Sounds right, at first glance.  The OOB data actually follows each block 
(perhaps that's just a terminology issue :) )

    -Dan

  reply	other threads:[~2005-04-06 16:29 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-29 21:06 [UPDATE] DOCBoot support for NFTL-based DOC2000 Dan Brown
2005-03-31 15:50 ` Zeri Virgo
2005-03-31 20:35   ` Dan Brown
2005-04-01  1:33     ` Zeri Virgo
2005-04-01  2:13       ` Dan Brown
2005-04-04 15:05         ` Zeri Virgo
2005-04-04 18:04           ` Dan Brown
2005-04-05 12:00             ` Zeri Virgo
2005-04-05 19:51               ` Dan Brown
2005-04-06 12:13                 ` Zeri Virgo
2005-04-06 12:29                   ` Zeri Virgo
2005-04-06 13:12                     ` Dan Brown
2005-04-06 14:48                       ` Zeri Virgo
2005-04-06 16:29                         ` Dan Brown [this message]
2005-04-06 18:23                           ` Dan Brown
2005-04-07 14:27                             ` Dan Brown
2005-04-07 21:45                               ` Zeri Virgo
2005-04-08 15:41                                 ` Dan Brown

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