From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [222.66.49.139] (helo=smailsh.E28.COM) by canuck.infradead.org with esmtp (Exim 4.54 #1 (Red Hat Linux)) id 1EeNOL-0005ny-RN for linux-mtd@lists.infradead.org; Mon, 21 Nov 2005 20:56:21 -0500 From: kevinwu To: linux-mtd@lists.infradead.org Content-Type: text/plain Date: Tue, 22 Nov 2005 09:50:24 +0800 Message-Id: <1132624224.3577.15.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: small erase block size with EBS List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I have a NAND flash with a small erase block(16KiB) When I use sumtool, I find that the summary image size is much larger than the original one if I use option --eraseblock=0x4000. But When I use option --eraseblock=0x20000, The summary image is a bit larger than the original one. EBS fits for large erase block as far as I know. That is to say, I can not use EBS if the NAND erase block is small. What a pitty! What about CS? Is there any way to use EBS on a small erase block size NAND? If there is not, I have to modify JFFS2 souce code in order to make a 128KiB erase block size image to work on a 16KiB erase block size NAND flash. -- Best Regards Kevin Wu System Software Engineer, E28.com Office: 86-21-32224888-207