[flashrom] Invalid OPCODE 0x9f

Vasiliy Vylegzhanin 6vasia at gmail.com
Wed Aug 7 17:22:45 CEST 2013


I begin to hate Intel for latest issues with AMT and flashing.

Yep, I also wonder, why block_erase_20 didn't work.
Just 2 patches from patchwork (for better region support, applied manually)
and chip declaration (copy-paste of original 25x64):

Original bios dump: http://paste.flashrom.org/view.php?id=1743 (bzip2)
After flashing: http://paste.flashrom.org/view.php?id=1744 (bzip2)
Vendor's utility and image: http://paste.flashrom.org/view.php?id=1745 (zip)



On Wed, Aug 7, 2013 at 6:48 PM, Stefan Tauner <
stefan.tauner at student.tuwien.ac.at> wrote:

> On Wed, 7 Aug 2013 14:42:40 +0400
> Vasiliy Vylegzhanin <6vasia at gmail.com> wrote:
>
> > And I failed. There are some (modified?) phoenix flash tools, but they
> > refuse to flash the same BIOS version.
> > I've added W25x64 REMS ID and tried to flash it. Somehow flashrom managed
> > to erase whole chip and yes, it failed to write @0x00580000.
> > Is there any way to write write-protected regions on W25X64? I really
> don't
> > want to desolder it, and I can't reboot cause BB is erased.
> > Write log attached.
>
> Hello Vasiliy,
>
> there are no write-protected regions that are specific to the flash
> chip, it all depends on the Intel chipset configuration only (i.e. the
> same would have happened with another flash chip).
>
> TBH I dont totally grasp your log. Your overall analysis seems to be
> correct though: the erase opcode might have got through. I wonder what
> your changes are exactly. Can you please post your patch? I also wonder
> how your images look like. If you can please upload them to
> http://paste.flashrom.org (they will be password protected there
> because we are not allowed to redistribute vendor images of course...)
>
> --
> Kind regards/Mit freundlichen Grüßen, Stefan Tauner
>
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