Re: DOC2000 flash: Do I miss something?

[Juergen Beisert <jbe@pengutronix.de>]

Hi,

On Dienstag, 24. März 2009, Ravi Vasarla wrote:
> Just check with nandwrite with option -j (--jffs2 oob layout) instead of
> autoplace oob layout.

I tried:

$ 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.

Regards,
Juergen