From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frank Mandarino Date: Thu, 07 Sep 2006 14:46:43 -0400 Subject: [U-Boot-Users] [PATCH] Write YAFFS filesystem images to NAND Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, The attached patch for common/cmd_nand.c provides the ability to write YAFFS filesystem images to NAND flash memory, using the newer MTD-based nand code. The patch extends the nand write command to parse a ".yaffs1" suffix for yaffs1 filesystems, or a ".yaffs" or ".yaffs2" suffix for yaffs2 filesystems. Yaffs1 filesystems support 512-byte page, 16-byte oob NAND chips, while yaffs2 filesystems support 2048-byte page, 64-byte oob NAND chips. Yaffs1 filesystem images can be generated using the mkyaffsimage utility in the yaffs2/utils directory. Yaffs2 filesystem images can be generated using the mkyaffs2image utility in the yaffs2/utils directory, after applying Sergey Kubushyn's patch. See http://aleph1.co.uk/lurker/message/20060211.004601.77b55bf3.en.html. So, for example, to write a yaffs1 filesystem image of length 0x526320 from address 0x20000000 in ram to offset 0x100000 in flash, run the command: nand write.yaffs1 20000000 100000 526320 The area to be written must be erased before writing the filesystem. I have tested this code with yaffs1 filesystems, and, in fact, I am finally able to run Linux with rootfstype=yaffs. I am unable to test with yaffs2 filesystems because I don't have access to a system using 2048+64 NAND chips. Regards, ../fam -- Frank Mandarino fmandarino(a)endrelia.com Endrelia Technologies Inc. Toronto, Ontario, Canada -------------- next part -------------- A non-text attachment was scrubbed... Name: nand_write_yaffs.patch Type: text/x-patch Size: 5209 bytes Desc: not available Url : http://lists.denx.de/pipermail/u-boot/attachments/20060907/d4405bb3/attachment.bin