Re: mtd - No flash chips recognised.

Re: mtd - No flash chips recognised.

[David L]

>On Fri, 2004-04-02 at 08:39 -0800, David L wrote:
> > I'm trying to use 2.6.4 with a Mobile DiskOnChip.  I get the message
> > "No flash chips recognised".  It looks like the DoC_IdentChip function
> > in doc2001.c is finding a nand_flash_id of 0xa5, which isn't one of the
> > ids listed in nand_ids.c.
>
>Er, then it should surely be saying 'No recognised DiskOnChip found' or
>something to that effect?

Here's what it says:

INFTL: inftlcore.c $Revision: 1.14 $, inftlmount.c $Revision: 1.11 $
DiskOnChip Millennium Plus found at address 0xC8000
No flash chips recognised.
Possible DiskOnChip with unknown ChipID FF found at 0xca000
Possible DiskOnChip with unknown ChipID 33 found at 0xcc000
Possible DiskOnChip with unknown ChipID 76 found at 0xce000
Possible DiskOnChip with unknown ChipID 00 found at 0xd0000
Possible DiskOnChip with unknown ChipID 00 found at 0xd2000
Possible DiskOnChip with unknown ChipID FF found at 0xd4000
Possible DiskOnChip with unknown ChipID FF found at 0xd6000
Possible DiskOnChip with unknown ChipID FF found at 0xd8000
Possible DiskOnChip with unknown ChipID FF found at 0xda000
Possible DiskOnChip with unknown ChipID 00 found at 0xdc000
Possible DiskOnChip with unknown ChipID 00 found at 0xde000
Possible DiskOnChip with unknown ChipID FF found at 0xe0000
Possible DiskOnChip with unknown ChipID FF found at 0xe2000
Possible DiskOnChip with unknown ChipID FF found at 0xe4000
DiskOnChip failed TOGGLE test, dropping.
Possible DiskOnChip with unknown ChipID 00 found at 0xe8000
Possible DiskOnChip with unknown ChipID 0F found at 0xea000
Possible DiskOnChip with unknown ChipID 74 found at 0xec000
Possible DiskOnChip with unknown ChipID 00 found at 0xee000

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Re: mtd - No flash chips recognised.

[David L]

>
>2.6 supports the DiskOnChip 2000, Millennium and Millennium Plus. There
>is no support yet for newer devices.

Does anybody know when support for newer devices (Mobile DiskOnChip)
might be available?  Most (all?) of the above devices are not recommended
for new designs.

m-sys has a patch for <=2.4 series kernels, but not for 2.6.  Are those
patches now part of the kernel or are they different implementations
(presumably with different licensing)?  Do the m-sys patches support
newer devices (just not newer kernels)?

Thanks:

                 David

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Re: mtd - No flash chips recognised.

[David Woodhouse]

On Fri, 2004-04-02 at 08:39 -0800, David L wrote:
> I'm trying to use 2.6.4 with a Mobile DiskOnChip.  I get the message
> "No flash chips recognised".  It looks like the DoC_IdentChip function
> in doc2001.c is finding a nand_flash_id of 0xa5, which isn't one of the
> ids listed in nand_ids.c.

Er, then it should surely be saying 'No recognised DiskOnChip found' or
something to that effect?

2.6 supports the DiskOnChip 2000, Millennium and Millennium Plus. There
is no support yet for newer devices. 

-- 
dwmw2

mtd - No flash chips recognised.

[David L]

I'm trying to use 2.6.4 with a Mobile DiskOnChip.  I get the message
"No flash chips recognised".  It looks like the DoC_IdentChip function
in doc2001.c is finding a nand_flash_id of 0xa5, which isn't one of the
ids listed in nand_ids.c.  Am I using the wrong driver or is this chip not
yet supported?  If it's not supported, would it make sense to add a
placeholder to drivers/mtd/devices/Kconfig like:

config MTD_DOCMOBILE
	tristate "M-Systems Mobile Disk-On-Chip (not yet supported!)"
	depends on MTD
	---help---
	  This chip is not yet supported... this is just a placeholder.

Thanks:

                         David

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