[flashrom] Asus P2B-N

[Mattias Mattsson]

On Thu, Jul 8, 2010 at 11:20, Carl-Daniel Hailfinger
<c-d.hailfinger.devel.2006 at gmx.net> wrote:
> On 08.07.2010 06:35, Mattias Mattsson wrote:
>> I'm using latest flashrom (r1070) on an Asus P2B-N h/w rev. 1.04.
>> Unfortunately it can't find the flash chip.
>> (It's a MVC V29C51002T-90P).
>
> That's pretty odd. Either the writes are not passed through to the chip,
> or another probe sequence irritated it too much. You chipset talks
> directly to the Parallel flash chip AFAICS.
>
>
>> DMI string baseboard-manufacturer: "ASUSTeK Computer INC."
>> DMI string baseboard-product-name: "P2B-N"
>> DMI string baseboard-version: "REV 1.xx"
>> DMI string chassis-type: "Unknown"
>> Found chipset "Intel PIIX4/4E/4M", enabling flash write... chipset PCI ID is 8086:7110, OK.
>> This chipset supports the following protocols: Parallel.
>> [...]
>> Probing for Winbond W49F002U, 256 KB: probe_jedec_common: id1 0x22, id2 0xfd, id1 parity violation, id1 is normal flash content, id2 is normal flash content
>> [...]
>> No EEPROM/flash device found.
>
> Could you perform a cold boot (including removing the power plug), and
> run flashrom exactly once after boot with the following command line:
>
> flashrom -V -c W49F002U

Sure, no problem. Output attached.

I found a datasheet for V29C51002T/V29C51002B. Maybe it can be of help?
http://www.ezoflash.com/datasheets/flash/Mosel_Vitelic/V29C51002.pdf


-m
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flashrom v0.9.2-r1070 on Linux 2.6.32-trunk-686 (i686), built with libpci 3.1.7, GCC 4.4.4, little endian
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OS timer resolution is 7 usecs, 148M loops per second, delay more than 10% too short (got 68% of expected delay), recalculating... 140M loops per second, delay more than 10% too short (got 65% of expected delay), recalculating... 220M loops per second, 10 myus = 12 us, 100 myus = 101 us, 1000 myus = 979 us, 10000 myus = 9872 us, 28 myus = 31 us, OK.
Initializing internal programmer
No coreboot table found.
DMI string system-manufacturer: "System Manufacturer"
DMI string system-product-name: "System Name"
DMI string system-version: "System Version"
DMI string baseboard-manufacturer: "ASUSTeK Computer INC."
DMI string baseboard-product-name: "P2B-N"
DMI string baseboard-version: "REV 1.xx"
DMI string chassis-type: "Unknown"
Found chipset "Intel PIIX4/4E/4M", enabling flash write... chipset PCI ID is 8086:7110, OK.
This chipset supports the following protocols: Parallel.
Probing for Winbond W49F002U, 256 KB: probe_jedec_common: id1 0x22, id2 0xfd, id1 parity violation, id1 is normal flash content, id2 is normal flash content
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.