From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.kernelconcepts.de ([212.60.202.196]) by bombadil.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1Oygyv-0001lP-6T for linux-mtd@lists.infradead.org; Thu, 23 Sep 2010 08:16:42 +0000 Received: from [192.168.2.28] by mail.kernelconcepts.de with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1Oyh9I-0007al-0l for linux-mtd@lists.infradead.org; Thu, 23 Sep 2010 10:27:24 +0200 Message-ID: <4C9B0CE3.6040703@kernelconcepts.de> Date: Thu, 23 Sep 2010 10:16:35 +0200 From: Nils Faerber MIME-Version: 1.0 To: "linux-mtd@lists.infradead.org" Subject: NAND on MV78100 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi! I am currently working on board support for a Marvell MV78100 based board. The MV78100 uses the same Orion SOC components as e.g. the Kirkwood which is quite well supported from OpenRD and SheevaPlug. After some struggling I got the Orion NAND driver working, it detects the NAND chip properly (512MB) and assigns a partition. Everything seems OK so far. But when I read from the device, e.g. just by "cat /dev/mtdblock1 | wc -c" it starts to fail with "uncorrectable error" after exactly 1MB (1024*1024). This seems pretty strange to me and I have no real idea where to look for the problem. I have the Orion NAND driver working cleanly with the very same kernel version on a Kirkwood based board without problems. Any hint on where to look would be *very* much appreciated ;) Thanks! Cheers nils -- kernel concepts GbR Tel: +49-271-771091-12 Sieghuetter Hauptweg 48 D-57072 Siegen Mob: +49-176-21024535 http://www.kernelconcepts.de