From: David Woodhouse <dwmw2@infradead.org>
To: Eric Nelson <eric_n2@verifone.com>
Cc: "'linux-mtd@lists.infradead.org'" <linux-mtd@lists.infradead.org>
Subject: Re: beginners mtd/jffs question
Date: Sat, 01 Dec 2001 10:55:06 +0000 [thread overview]
Message-ID: <17820.1007204106@redhat.com> (raw)
In-Reply-To: <614CC7C21856D1118DA30060B06B487302ACC800@SMF-NT-MAIL1.verifone.com>
> Isn't it better to use plain NOR linear flash than DOC, because then JFFS2
> has complete control?
JFFS2 has complete control of a DiskOnChip. It's only an ASIC to do
hardware ECC and a handful of NAND flash chips. But JFFS2 doesn't yet
support NAND flash properly, so at the moment plain NOR linear flash is
best.
> Is the DOC/JFFS2 a good solution?
Not right now, maybe soon.
> I mean, it seems like w/ the commercial SBC's, the only options are
> CompactFlash (Ugh!), or DOC.
> Is there some type of PCMCIA flash that meets MTD?
Hard to get hold of now - most people stopped making it in favour of CF.
Cisco still use it, but obviously that's fairly expensive, being Cisco.
It's easy enough to make a map driver for it if you actually _have_ one,
but most people don't, so nobody's bothered to write that driver yet.
> Are there commercial boards w/ linear MTD flash?
Yes. http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GXm.htm
Just looking in the drivers/mtd/maps directory will give you some boards to
look for.
--
dwmw2
prev parent reply other threads:[~2001-12-01 10:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-30 18:49 beginners mtd/jffs question Eric Nelson
2001-12-01 10:55 ` David Woodhouse [this message]
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