DOC2000 flash: Do I miss something?
ravi.vasarla at sasken.com
Tue Mar 24 09:07:47 EDT 2009
Check the MTD drivers write size, usually pagesize is same as the writesize.
In nandwrite.c the ioctl will fired only when passed the option like -a (autoplace) -n (noecc) passed. I guess it should not give below
error with -j option. Check with the latest version of mtd-util of nandwrite.c file
From: Juergen Beisert [jbe at pengutronix.de]
Sent: Tuesday, March 24, 2009 18:19
To: linux-mtd at lists.infradead.org
Cc: Ravi Vasarla
Subject: Re: DOC2000 flash: Do I miss something?
On Dienstag, 24. März 2009, Ravi Vasarla wrote:
> Just check with nandwrite with option -j (--jffs2 oob layout) instead of
> autoplace oob layout.
$ flash_eraseall -j /dev/mtd1
$ nandwrite -j /dev/mtd1 /root.jffs2
MEMSETOOBSEL: Inappropriate ioctl for device
Only the "-a" option given to "nandwrite" works. Maybe my image is wrong. I
took a look into the email archives you mentioned and change it to:
(note: Host is x86 and also the target)
$ mkfs.jffs2 -d images/work_dir --eraseblock=0x4000 -n -p \
--pagesize=512 -o images/root.jffs2
I'm unsure about the eraseblock and pagesize option. /proc/mtd tells me:
$ cat /proc/mtd
dev: size erasesize name
mtd1: 01000000 00004000 "DiskOnChip 2000 (NFTL Model)"
But nothing about the pagesize.
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