From: David Woodhouse <dwmw2@infradead.org>
To: Boris Bulkin <boris@emcraft.ru>
Cc: linux-mtd@lists.infradead.org
Subject: Re: DOC2000 support for a custom PPC750 board
Date: Mon, 05 Nov 2001 11:20:58 +0000 [thread overview]
Message-ID: <10816.1004959258@redhat.com> (raw)
In-Reply-To: <3BE66F9A.327AC763@emcraft.ru>
boris@emcraft.ru said:
> One more question: from the M-Sys documents I understand there can be
> two types of partitions on a DOC device, binary and NFTL. Binary is
> supposed to store an OS image, and NFTL be used as a filesystem. Are
> there any MTD tools for creating and reading/writing binary DOC
> partitions? Sorry if it sonds silly. I'm not very familiar with DOC
> and MTD.
By 'binary partitions' they presumably mean data stored directly on the
flash chips. NFTL is a kind of pseudo-filesystem which is used to emulate a
block device - you then put normal filesystems on top of that emulated
block device.
Yes, we have programs which will write data to the raw flash. You just open
/dev/mtd0, use the MEMERASE ioctl for the region you want to overwrite
and then write to it. The doc_loadbios program was used for putting Grub in
place of the normal firmware.
--
dwmw2
next prev parent reply other threads:[~2001-11-05 11:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-05 9:18 DOC2000 support for a custom PPC750 board Boris Bulkin
2001-11-05 9:36 ` David Woodhouse
2001-11-05 10:53 ` Boris Bulkin
2001-11-05 11:20 ` David Woodhouse [this message]
2001-11-05 19:01 ` Bao C. Ha
2001-11-05 22:54 ` David Woodhouse
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