From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.kernelconcepts.de ([212.60.202.196]) by canuck.infradead.org with esmtps (Exim 4.63 #1 (Red Hat Linux)) id 1IR1jA-0004lJ-7i for linux-mtd@lists.infradead.org; Fri, 31 Aug 2007 04:19:47 -0400 Received: from [192.168.2.28] by mail.kernelconcepts.de with esmtpsa (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.63) (envelope-from ) id 1IR1ti-0007aw-Fi for linux-mtd@lists.infradead.org; Fri, 31 Aug 2007 10:30:34 +0200 Message-ID: <46D7CF14.1010009@kernelconcepts.de> Date: Fri, 31 Aug 2007 10:19:32 +0200 From: Nils Faerber MIME-Version: 1.0 To: linux-mtd@lists.infradead.org Subject: JFFS2 support fro AT45* dataflash... 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! Just a quick question of verification ;) We are planning a new hardware and have to choose our storage device. Ideally we would like to use one of the AT45* serial data flashes (currently in plan is AT45DB642D with uclinux 2.6.xx). Looking through the kernel sources I found several "hints" that those dataflashes should be supported by MTD and JFFS2. Now I just read in tha datasheet that dataflashes require a sector rewrite every 10,000 write cycles in any of the pages of a single sector. This seems complex to me and I was not able to conclusively figure out for sure if MTD/JFFS2 supports this. JFFS2 is critical for our application. So if someone could just briefly acknowledge that this sector-rewrite is also implemented I would be extremely happy (and continue to go for data flashes ;) Many thanks! Cheers nils faerber -- kernel concepts GbR Tel: +49-271-771091-12 Sieghuetter Hauptweg 48 Fax: +49-271-771091-19 D-57072 Siegen Mob: +49-176-21024535 --