From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from www.ccimackay.com ([203.52.109.14] helo=mail.ccimackay.com ident=root) by pentafluge.infradead.org with esmtp (Exim 3.22 #1 (Red Hat Linux)) id 14z3AP-0003xX-00 for ; Sun, 13 May 2001 22:12:42 +0100 Message-ID: <003501c0dbf1$cae0b820$8264a8c0@dave> From: "David Griffith" To: "Sean Simmons" Cc: References: <3AFEEBE4.40007@rdinstruments.com> Subject: Re: Unable to fdisk DOC2000 Date: Mon, 14 May 2001 07:15:10 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit 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: Hi Sean, This is exactly what appeared when I first tried the MTD drivers out on my system (Virgin webplayer hardware - Geode Gxl 200Mhz SBC). I had to modify the delay in doc2000.c to be 4 times as long before it would work. There's a post further back in the list that has a little more detail, and a small patch that does it is at http://virgin-linux.sourceforge.net/cgi-bin/ax.cgi?/doc2000-patch Note that this *really* kills DoC read/write performance.... one day I might see about adjusting all the delays in there. Hope this helps, Dave ----- Original Message ----- From: "Sean Simmons" To: Sent: Monday, May 14, 2001 6:17 AM Subject: Unable to fdisk DOC2000 > Hello, > I'm using a stock 2.4.4 kernel with the MTD driver > compiled into the kernel. I've managed to get the driver to > recognize the DOC so that it says: > > M-Systems DiskOnChip driver. (C) 1999 Machine Vision Holdings, Inc. > DiskOnChip 2000 found at address 0xCE000 > Flash chip found: Manufacturer ID: 98, Chip ID: 73 (Toshiba TH58V128DC) > 1 flash chips found. Total DiskOnChip size: 16 Mb > > The FTL driver, however gives: > > ftl_cs: FTL header not found. > > The NFTL driver then says: > > M-Systems NAND Flash Translation Layer driver. (C) 1999 MVHI > $Id: nftl.c,v 1.57 2000/12/01 17:51:54 dwmw2 Exp $ > Could not find valid boot record > Could not mount NFTL device > > According to a post I saw earlier, this means the DOC is "hosed" > and needs to be formatted. When I run nftl_format I get: > > Erase size not 8 Kb - I'm confused > > I removed the check for the erase size as someone else suggested > and nftl_format appeared to work okay going through Phase 1, 2a, > 2b, and 3 with no errors. > > However, when I try to fdisk /dev/nftla I get: > > Unable to open /dev/nftla > > When I cat /proc/mtd I get: > > mtd0: 01000000 "DiskOnChip 2000" > > which looks different than I expected. > > Does anybody have any idea why fdisk won't work? > > Thanks, > > > Sean Simmons > Lead Firmware Engineer 9855 Businesspark Ave > RD Instruments San Diego, CA 92131 > email: ssimmons@rdinstruments.com phone: (858)693-1178 > web: http://www.rdinstruments.com fax: (858)695-1459 > > > > ______________________________________________________ > Linux MTD discussion mailing list > http://lists.infradead.org/mailman/listinfo/linux-mtd/