From: Matthieu CASTET <matthieu.castet@parrot.fr>
To: Josh Boyer <jwboyer@gmail.com>
Cc: linux-mtd@lists.infradead.org, Seongsu Lee <senux@senux.com>
Subject: Re: FAT file system on NAND flash memory
Date: Fri, 27 Apr 2007 14:50:03 +0200 [thread overview]
Message-ID: <4631F17B.3080204@parrot.fr> (raw)
In-Reply-To: <625fc13d0704120655u2f452b12ge9315f47b951aa34@mail.gmail.com>
Hi,
Josh Boyer a écrit :
> On 4/12/07, Seongsu Lee <senux@senux.com> wrote:
>> Hi,
>>
>> In my knowledge, mtdblock.c must be used to use
>> FAT filesystem on bare NAND flash memories
>> because NFTL is made only for a specific hardware,
>> DiskOnChip.
>>
>> (Layer 0) VFS
>> (Layer 1) FAT (or EXT2, EXT3)
>> (Layer 2) mtdblock.c (nftl.c can be used only with DiskOnChip)
>> (Layer 3) NAND flash memory driver (vendor specific)
>> (Layer 4) Physical NAND flash memory
>>
>> Please let me know if it is wrong.
>
> That layering is correct, but your results will be bad. mtdblock
> doesn't handle bad blocks. So if you have one in the middle of your
> filesystem, it will break things. You need some kind of translation
> layer if you're going to use NAND.
>
But UBI could be used between nand and mtdblock ?
Matthieu
next prev parent reply other threads:[~2007-04-27 12:53 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-12 13:41 FAT file system on NAND flash memory Seongsu Lee
2007-04-12 13:55 ` Josh Boyer
2007-04-26 17:59 ` Seongsu Lee
2007-04-27 13:45 ` Josh Boyer
2007-04-27 12:50 ` Matthieu CASTET [this message]
2007-04-27 13:45 ` Josh Boyer
2007-05-29 17:09 ` Seongsu Lee
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