Linux 2.6.x, MTD drivers and NAND flashes

[Laurent Lagrange]

Gary and Bill,

My need is to load a basic Linux kernel on boards to program multiple 
NOR and NAND flashes with CRAMFS and JFFS2 (perhaps YAFFS) images.

I usually used mtd character accesses to do the job on NOR flashes.
But flash_eraseall and flashcp seem to be excellent tools.
I'll try them quickly.

Many thanks for your help
Bye
Laurent

> -----Message d'origine-----
> De : Gary Kenaley [mailto:gkenaley at echelon.com]
> Envoyé : lun. 11 juin 2007 21:00
> À : Bill Gatliff; Laurent Lagrange
> Cc : linuxppc-embedded at ozlabs.org
> Objet : RE: Linux 2.6.x, MTD drivers and NAND flashes
> 
> 
> Laurent,
> 
> Can't you just use the flashcp copy command from the 
> mtd-utils package?
> --------------------------------------------------------------
> ---------
> flash_eraseall -j /dev/mtd0
> 
> mkfs.jffs2 -b -n --eraseblock=131072 --pagesize=2048 -p -r 
> /test_root -v -o test_root.img
> 
> flashcp test_root.img /dev/mtd0
> 
> 
> The other way is what Bill mentions:
> ------------------------------------
> flash_eraseall -j /dev/mtd0
> mount -t jffs2 /dev/mtdblock0 /tmp/mnt
> tar -xzf test_root.tgz -C /tmp/mnt
> umount /tmp/mnt
> 
> Gary
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