[vortex] 3c905CX-TX-NM

[Bogdan Costescu]

On Sat, 15 Jun 2002, Donald Becker wrote:

> > I wonder if 3com changed something, and there's a new magic
> > incantation which the driver must utter to power up the eeprom?
> 
> I don't think so.  The base problem is that the card is detected with a
> PCI device ID of 0xffff, and various other registers the chip
> initialized from the EEPROM itself have bogus values.  It's pretty clear
> that the EEPROM has been cleared or is broken.

Aren't the values for PCI Vendor and Device ID needed by BIOS at boot ? 
Plus MAC for network boot ? If so, 3Com can't rely on a driver to power up 
the EEPROM...

However, I wonder how the Vendor ID is still there and the Device ID is 
not... They are quite apart (Device ID at 0x03 and Vendor ID at 0x17) so 
accidental erasure is quite unprobable IMHO. Could you please try with 
'vortex-diag -ee' to have the complete dump of the EEPROM and see what 
else (if any) apart from the Vendor ID is still present ?

I've only had one bad 3Com card which was completely broken, meaning that 
the BIOS would not detect any "Ethernet Adapter" and it would not appear 
on the PCI bus at all.

-- 
Bogdan Costescu

IWR - Interdisziplinaeres Zentrum fuer Wissenschaftliches Rechnen
Universitaet Heidelberg, INF 368, D-69120 Heidelberg, GERMANY
Telephone: +49 6221 54 8869, Telefax: +49 6221 54 8868
E-mail: Bogdan.Costescu@IWR.Uni-Heidelberg.De