[flashrom] FAILED: SST SST39SF040 - Verify Failed

[Roger]

>On Thu, Jan 13, 2011 at 12:18:01AM +0100, Carl-Daniel Hailfinger wrote:
>> Verifying flash... VERIFY FAILED at 0x0003fc9e! Expected=0xff, Read=0x4f, failed byte count from 0x00000000-0x0007ffff: 0x231f7
>>   
>
>Now it explodes. This is very strange.
>
>
>> DIGI-KEY Part No. SST39SF040-70-4C-PHE
>> IC FLASH MPF 4MBIT (512KBYTES) 70NS 32DIP
>>   
>
>That should have worked. Can you try to update to the very latest
>flashrom from svn and write the old image back? I hope that survives the
>verify.
>Please also send a log of the write attempt with latest flashrom from
>svn. Maybe it has some useful info.

Yes. You are right. I was burning a coreboot image, and rebooting and coreboot
seemed to execute without issues besides the usual stuff relevant to coreboot
code.

I'll checkout svn flashrom sometime and post back my results.  I also have to
re-enter this fat thing into the motherboard rom again. :-/ (zif is too tight
of a fit and usb pic programmers cost way too much.)

>> This is flashing using a Tyan S1832DL board
>> 00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
>> ...
>> 00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 02)
>>
>> (... am I getting this right, flashrom uses the ISA bridge to write to flash part?)
>>   
>
>Correct. On that board, the flash chip is attached to the ISA bridge.
>Later boards have a LPC bridge to which the flash chip is attached.

Ah.  Thanks for helping to demystify this stuff for me.

-- 
Roger
http://rogerx.freeshell.org/