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From: David Woodhouse <dwmw2@infradead.org>
To: juan@hispafuentes.com (Juan Ramon Jimenez)
Cc: linux-mtd@lists.infradead.org
Subject: Re: Problems with NAND support
Date: Tue, 07 Aug 2001 11:26:17 +0100	[thread overview]
Message-ID: <6837.997179977@redhat.com> (raw)
In-Reply-To: <m34rrlfd3h.fsf@drkitkat.Hispafuentes.com>


juan@hispafuentes.com said:
>  We only can get a kernel image if we don't enable NAND device
> support.  The problem is that we really need it. Do you know why? 

If you're using raw NAND chips you'll need a tiny board-specific glue 
driver like spia.c to let the generic nand code know how to access the 
chips.

You can't use FTL on it because that's for NOR flash. You can't use NFTL 
because that requires the DiskOnChip ECC hardware, and in many places both 
suffer from patent problems.

You can use JFFS on it, but JFFS2 hasn't yet been made to deal with NAND 
flash - I'm happy to give you pointers if you want to fix that.

I'd also like to see someone write a SmartMedia-compatible translation 
layer driver - that ought to be fairly simple to do too.

--
dwmw2

  reply	other threads:[~2001-08-07 10:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-08-06 15:00 Problems with NAND support Juan Ramon Jimenez
2001-08-07 10:26 ` David Woodhouse [this message]
  -- strict thread matches above, loose matches on Subject: below --
2001-08-07 15:13 James, Laura
2001-08-07 16:01 ` David Woodhouse

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