diskonchip md2202-d256

diskonchip md2202-d256

[Sarah Diesburg]

My research group is experimenting with diskonchip, and we have two of
the DoC 2000 256MB DIPs.  We eventually would like to mount ext3 on top
of inftl in Linux.  We are using a 2.6.25.6 kernel, and we have grabbed
the latest mtd utilities from the git repository.

We have had a hard time coming by a how-to with the latest kernels and
modules, so I wanted to post our proposed methodology here.  Does the
following sequence of events look right?

1. modprobe diskonchip

2. go into the mtd-utils directory and run the "MAKEDEV" script to
create the /dev/mtd* entries and the /dev/inftla entries.

3. ntfl_format -i /dev/mtd0

4. modprobe inftl

5. fdisk /dev/inftla and partition as a disk

6. mkfs.ext3 /dev/inftla

7. mount -t ext3 /dev/inftla /mnt

Thanks for your help!

-- Sarah


-- 
Sarah Diesburg
Florida State University
"I've got so many kernels I can start making popcorn!"

Re: DiskOnChip MD2202-D256

[Kien Phung Chi]

You should format the DOC with driver 4.2: 
dformat /win:e000 /s:doc42.exb
and try to use MTD driver or you must use linux driver
ver4.2 from M-sys

> To: linux-mtd@lists.infradead.org
> Subject: DiskOnChip MD2202-D256
> 
> Hi,
> 
> 
> I'm just trying to install DiskOnChip MD2202-D256
> flash disk on my
> 2.4.21-rc2 linux. While loading modul by command
> 	'modprobe docprobe'
> 	
> these messages occurred on my screen:
> 
> DiskOnChip Millenium found at address 0xE0000
> Unknown flash chip found: 21 21
> Please report to dwmw2@infradead.org
> Unknown flash chip found: 21 21
> Please report to dwmw2@infradead.org
> Unknown flash chip found: A1 A1
> Please report to dwmw2@infradead.org
> No flash chips recognised.
> 
> This flash disk was formated by DOS command:
> 	dformat /win:e000 /s:doc514.exb
> 
> and that enabled C:\ disk under DOS.
> 
> DiskOnChip is a part of ICOP-6070 PC/104 Embedded
> CPU module.
> 
> Is there some HOWTO showing me how to install this
> DOC in Linux?
> 
> Is this DOC supported by MTD drivers in 2.4.21-rc2
> kernel?
> 
> Thanks,
> 
> Oskar


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DiskOnChip MD2202-D256

[Oskar Stolc]

Hi,


I'm just trying to install DiskOnChip MD2202-D256 flash disk on my
2.4.21-rc2 linux. While loading modul by command
	'modprobe docprobe'
	
these messages occurred on my screen:

DiskOnChip Millenium found at address 0xE0000
Unknown flash chip found: 21 21
Please report to dwmw2@infradead.org
Unknown flash chip found: 21 21
Please report to dwmw2@infradead.org
Unknown flash chip found: A1 A1
Please report to dwmw2@infradead.org
No flash chips recognised.

This flash disk was formated by DOS command:
	dformat /win:e000 /s:doc514.exb

and that enabled C:\ disk under DOS.

DiskOnChip is a part of ICOP-6070 PC/104 Embedded CPU module.

Is there some HOWTO showing me how to install this DOC in Linux?

Is this DOC supported by MTD drivers in 2.4.21-rc2 kernel?

Thanks,

Oskar

Re: DiskOnChip MD2202-D256

[David Woodhouse]

On Fri, 2003-05-23 at 07:38, Oskar Stolc wrote:
> Hi,
> 
> 
> I'm just trying to install DiskOnChip MD2202-D256 flash disk on my
> 2.4.21-rc2 linux. While loading modul by command
> 	'modprobe docprobe'
> 	
> these messages occurred on my screen:
> 
> DiskOnChip Millenium found at address 0xE0000

Please could you try the following patch:

Index: drivers/mtd/devices/docprobe.c
===================================================================
RCS file: /home/cvs/mtd/drivers/mtd/devices/docprobe.c,v
retrieving revision 1.37
diff -u -p -r1.37 docprobe.c
--- drivers/mtd/devices/docprobe.c	30 Jun 2003 09:01:46 -0000	1.37
+++ drivers/mtd/devices/docprobe.c	30 Jun 2003 09:04:41 -0000
@@ -135,6 +135,12 @@ static inline int __init doccheck(unsign
 		 window, DOCControl);
 #endif /* !DOC_PASSIVE_PROBE */	
 
+	/* We need to read the ChipID register four times. For some
+	   newer DiskOnChip 2000 units, the first three reads will
+	   return the DiskOnChip Millennium ident. Don't ask. */
+	ReadDOC(window, ChipID);
+	ReadDOC(window, ChipID);
+	ReadDOC(window, ChipID);
 	ChipID = ReadDOC(window, ChipID);
   
 	switch (ChipID) {


-- 
dwmw2