[flashrom] undetected Intel X79 (8086:1d41) flash chip

[Alexey Dobriyan]

On Tue, Oct 9, 2012 at 11:04 PM, Stefan Tauner
<stefan.tauner at student.tuwien.ac.at> wrote:
> On Tue, 9 Oct 2012 22:10:59 +0300
> Alexey Dobriyan <adobriyan at gmail.com> wrote:
>
>> This comes from Sandy Bridge mobo.
>> Is it supported in trunk?
>>
>> I can experiment with the system a bit if necessary.
>> […]
>> 0x54: 0x000f0000 FREG0: WARNING: Flash Descriptor region (0x00000000-0x0000ffff) is read-only.
>> 0x58: 0x0fff0800 FREG1: BIOS region (0x00800000-0x00ffffff) is read-write.
>> 0x5C: 0x07ff0020 FREG2: WARNING: Management Engine region (0x00020000-0x007fffff) is locked.
>> 0x60: 0x00000fff FREG3: Gigabit Ethernet region is unused.
>> 0x64: 0x001f0010 FREG4: Platform Data region (0x00010000-0x0001ffff) is read-write.
>> 0x74: 0x00000000 (PR0 is unused)
>> 0x78: 0x00000000 (PR1 is unused)
>> 0x7C: 0x00000000 (PR2 is unused)
>> 0x80: 0x00000000 (PR3 is unused)
>> 0x84: 0x00000000 (PR4 is unused)
>> Please send a verbose log to flashrom at flashrom.org if this board is not listed on
>> http://flashrom.org/Supported_hardware#Supported_mainboards yet.
>> Writes have been disabled. You can enforce write support with the
>> ich_spi_force programmer option, but it will most likely harm your hardware!
>> If you force flashrom you will get no support if something breaks.
>
> Hello Alexey,
>
> thanks for your report!
>
> The problem is the locked ME region as quoted above. We are working on
> unlocking it, but intel does not provide us any documentation so please
> do not expect a solution soon.
>
> Can you please tell us which Supermicro board that is so that i can add
> it to our list of unsupported boards in the meantime?

I can't, it's a custom(?) board with DMI info et al stripped and replaced.

Why this ME region is important? It doesn't overlap with BIOS region.

    Alexey, who know approximately nothing about BIOS internals