Moving from 2.2.18 + M-system proprietray code to 2.4.6 => does not work

Moving from 2.2.18 + M-system proprietray code to 2.4.6 => does not work

[VALETTE Eric]

I have been using a motherboard with a DOC 2000. I can boot from the 
diskOnChip and see it as a disk device with a ext2 filesystem using 
2.2.18 + Msystem patch + own cooked lilo patch...

Now I upgraded the system to a stock 2.4.6 kernel *with devfs enabled*

When I boot, I see the follwing message :

M-Systems DiskOnChip driver. (C) 1999 Machine Vision Holdings, Inc.
DiskOnChip 2000 found at address 0xD8000
Flash chip found: Manufacturer ID: 98, Chip ID: 73 (Toshiba TH58V128DC)
2 flash chips found. Total DiskOnChip size: 32 MiB
Ignoring DiskOnChip 2000 at 0xDA000 - already configured
Ignoring DiskOnChip 2000 at 0xDC000 - already configured
Ignoring DiskOnChip 2000 at 0xDE000 - already configured
M-Systems NAND Flash Translation Layer driver. (C) 1999 MVHI
$Id: nftlcore.c,v 1.73 2001/06/09 01:09:43 dwmw2 Exp $
  nftla: p1
devfs: devfs_register(disc): NULL ops, got c02d8850 from major table
devfs: devfs_register(part1): NULL ops, got c02d8850 from major tableL


In /dev/nflt/disc0 I have two devices

/dev/nftl# ls
disc0
albator:/dev/nftl# cd disc0
albator:/dev/nftl/disc0# ls -l
total 0
brw-------    1 root     root      93,   0 Jan  1  1970 disc
brw-------    1 root     root      93,   1 Jan  1  1970 part1

No other things.

NB : /dev/discs/disc1# ls -l
total 0
brw-------    1 root     root      93,   0 Jan  1  1970 disc
brw-------    1 root     root      93,   1 Jan  1  1970 part1

But I can not mount the filesystem. The filesystem is valid as it works
with the 2.2.18 kernel...

Any idea?





-- 
    __
   /  `                          Eric Valette - Canon CRF
  /--   __  o _.                 Canon Development Europe Team Leader
(___, / (_(_(__                 Rue de la touche lambert
                                 35517 Cesson-Sevigne  Cedex
                                 FRANCE
Tel: +33 (0)2 99 87 68 91       Fax: +33 (0)2 99 84 11 30
E-mail: valette@crf.canon.fr    http://www.crf.canon.fr

Re: Moving from 2.2.18 + M-system proprietray code to 2.4.6 => does not work

[David Woodhouse]

valette@crf.canon.fr said:
> NB : /dev/discs/disc1# ls -l
> total 0
> brw-------    1 root     root      93,   0 Jan  1  1970 disc
> brw-------    1 root     root      93,   1 Jan  1  1970 part1

> But I can not mount the filesystem. The filesystem is valid as it
> works with the 2.2.18 kernel...

Does it work without devfs?

--
dwmw2

Re: Moving from 2.2.18 + M-system proprietray code to 2.4.6 => does not work

[VALETTE Eric]

David Woodhouse wrote:

> 
> valette@crf.canon.fr said:
> 
>>NB : /dev/discs/disc1# ls -l
>>total 0
>>brw-------    1 root     root      93,   0 Jan  1  1970 disc
>>brw-------    1 root     root      93,   1 Jan  1  1970 part1
>>
> 
>>But I can not mount the filesystem. The filesystem is valid as it
>>works with the 2.2.18 kernel...
>>
> 
> Does it work without devfs?

I did not even tested it as I need devfs for USB devices hotplug... 
Besides, I had hoped to not be hurt by major/minor like I had been in 
the past...

What are the right major minor for DOC 2000? I found values in mtd.h and 
other in major.h.


-- 
    __
   /  `                          Eric Valette - Canon CRF
  /--   __  o _.                 Canon Development Europe Team Leader
(___, / (_(_(__                 Rue de la touche lambert
                                 35517 Cesson-Sevigne  Cedex
                                 FRANCE
Tel: +33 (0)2 99 87 68 91       Fax: +33 (0)2 99 84 11 30
E-mail: valette@crf.canon.fr    http://www.crf.canon.fr

Re: Moving from 2.2.18 + M-system proprietray code to 2.4.6 => does not work

[David Woodhouse]

valette@crf.canon.fr said:
>  What are the right major minor for DOC 2000? I found values in mtd.h
> and  other in major.h.

It's not defined in either of those two files. It's in <linux/mtd/nftl.h>:
	#define NFTL_MAJOR 93

--
dwmw2