From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dell-paw-3.cambridge.redhat.com ([195.224.55.237] helo=passion.cambridge.redhat.com) by pentafluge.infradead.org with esmtp (Exim 3.22 #1 (Red Hat Linux)) id 16A7gI-0002dV-00 for ; Sat, 01 Dec 2001 10:47:38 +0000 From: David Woodhouse In-Reply-To: <614CC7C21856D1118DA30060B06B487302ACC800@SMF-NT-MAIL1.verifone.com> References: <614CC7C21856D1118DA30060B06B487302ACC800@SMF-NT-MAIL1.verifone.com> To: Eric Nelson Cc: "'linux-mtd@lists.infradead.org'" Subject: Re: beginners mtd/jffs question Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 01 Dec 2001 10:55:06 +0000 Message-ID: <17820.1007204106@redhat.com> Sender: linux-mtd-admin@lists.infradead.org Errors-To: linux-mtd-admin@lists.infradead.org List-Help: List-Post: List-Subscribe: , List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: > 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