Help with mtd + jffs2

Help with mtd + jffs2

[Frank R Callaghan]

Hi,

I have been trying to get the mtd driver working with the flash
device on the TS-5300 card - all seemed to be going well :=

$Id: ftl.c,v 1.50 2003/05/21 10:49:47 dwmw2 Exp $
physmap flash device: 200000 at 9400000
 Amd/Fujitsu Extended Query Table v1.1 at 0x0040
number of CFI chips: 1
cfi_cmdset_0002: Disabling fast programming due to code brokenness.
kmod: failed to exec /sbin/modprobe -s -k cmdlinepart, errno = 2
cmdlinepart partition parsing not available
kmod: failed to exec /sbin/modprobe -s -k RedBoot, errno = 2
RedBoot partition parsing not available
Using physmap partition definition
Creating 3 MTD partitions on "Physically mapped flash":
0x00000000-0x000e0000 : "BOOT FIRMWARE"
mtd: Giving out device 0 to BOOT FIRMWARE
ftl_cs: FTL header not found.
0x000e0000-0x00100000 : "BIOS-DO_NOT_TOUCH"
mtd: Giving out device 1 to BIOS-DO_NOT_TOUCH
ftl_cs: FTL header not found.
0x00100000-0x00200000 : "PNC-2000 filesystem"
mtd: Giving out device 2 to PNC-2000 filesystem
ftl_cs: FTL header not found.

# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 000e0000 00010000 "BOOT FIRMWARE"
mtd1: 00020000 00010000 "BIOS-DO_NOT_TOUCH"
mtd2: 00100000 00010000 "PNC-2000 filesystem"

But then I tryed to put the jffs2 file system image onto
the device :=

# cp /myapp/jffs2_file_sys.img /dev/mtd0
cp: unable to open `/dev/mtd0': No such device
#

but I have the device !
# ls -al /dev/mtd?
crw-------    1 root     root      90,   0 Jan  1  1970 /dev/mtd0
crw-------    1 root     root      90,   2 Jan  1  1970 /dev/mtd1
crw-------    1 root     root      90,   4 Jan  1  1970 /dev/mtd2
crw-------    1 root     root      90,   6 Jan  1  1970 /dev/mtd3
crw-------    1 root     root      90,   8 Jan  1  1970 /dev/mtd4

So Close but, So Far ;(

Can anyone suggest what I may have cocked-up ?
Where I can go from here - be nice ;)

TIA,
	Frank. 

Re: Help with mtd + jffs2

[Jörn Engel]

On Wed, 11 June 2003 14:38:52 -0400, Frank R Callaghan wrote:
> 
> But then I tryed to put the jffs2 file system image onto
> the device :=
> 
> # cp /myapp/jffs2_file_sys.img /dev/mtd0
> cp: unable to open `/dev/mtd0': No such device
> #
> 
> but I have the device !
> # ls -al /dev/mtd?
> crw-------    1 root     root      90,   0 Jan  1  1970 /dev/mtd0
> crw-------    1 root     root      90,   2 Jan  1  1970 /dev/mtd1
> crw-------    1 root     root      90,   4 Jan  1  1970 /dev/mtd2
> crw-------    1 root     root      90,   6 Jan  1  1970 /dev/mtd3
> crw-------    1 root     root      90,   8 Jan  1  1970 /dev/mtd4

device != device node

A door alone doesn't make a mansion either. :)

Set CONFIG_MTD_CHAR to yes or better yet set CONFIG_MTD_BLOCK to yes
and use /dev/mtdblock* instead.  Those devices are usually much nicer
unless you really *really* know you don't want them.

Jörn

-- 
It's just what we asked for, but not what we want!
-- anonymous