[flashrom] regression report 0.9.1: Winbond W39V080FA fails

Stefan Reinauer stepan at coresystems.de
Thu Feb 4 00:12:55 CET 2010

On 2/3/10 11:13 PM, Carl-Daniel Hailfinger wrote:
>>> If you tested with svn, can you please provide a verbose log? I'm aware
>>> that locking/unlocking is basically non-working with current svn and
>>> that might be the reason you see the failure. Patch pending.
>> Will try. It's most likely a timing issue, as the driver was switched
>> from the winbond specific flash code to the generic jedec flash code
>> with timings that don't seem to match what the data sheets or the
>> hardware assume.
> Thanks. Not so long ago, I fixed a timing issue on Winbond after we were
> puzzled for a long time why erase had not completed although JEDEC
> toggle stopped. This may or may not be related.
> Ummm... is there any guarantee that ACPI and SMM won't access the ROM
> chip? If not, we need a more resilient (slower) JEDEC toggle routine.
Yes; It's definitely a flashrom issue. Old revisions work, and the SMM
handler nor ACPI is not active.

Here's a failure log for a starter

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