Hi Sandy,
Recent Intel PCHs use hardware sequencing which abstracts a lot of details
about the chip. So we don't actually need flashrom to explicitly support
the W25Q256.

Here is a tarball based on the latest sources from git:
https://drive.google.com/file/d/0Bz3WBh8gVeIuSlJYZ2c1bS1LdGc/view?usp=sharing

It has the following patches applied:
https://review.coreboot.org/#/c/20922/ : chispet_enable: Add PCI IDs for
C620-series PCHs
https://review.coreboot.org/#/c/20936/ : ich_descriptors: Modify limits for
C620/Lewisburg PCH
https://review.coreboot.org/#/c/20937/ : ich_descriptors: Fix off-by-one
error

Let us know if it works for you.


On Wed, Aug 9, 2017 at 8:04 PM, Sandy Zhang <sanzh...@celestica.com> wrote:

> Hi David,
>
> I have get the package from the web, but I can't find the code about
> "25Q256" in flashchip.c, so, maybe this will lead to flash fail.
>
> 2017-08-09 15:11 GMT+08:00 Sandy Zhang <sanzh...@celestica.com>:
>
>> Hi David,
>>
>> Yes, My system's ISA/LPC vendor id and device id is 8086:a1c6,
>> In fact, I can't access the clone https://review.coreboot.
>> org/flashrom.git,  I attempt to add the patch to flashrom-0.9.9, but I
>> found the difference is a bit big between these files, I'm very hard to add
>> the patch completely, so, could you send the latest package to me to try
>> this on my system?
>> Thanks for your great help!
>>
>>
>>
>>
>>
>>
>> 2017-08-09 14:04 GMT+08:00 David Hendricks <david.hendri...@gmail.com>:
>>
>>> Hi Sandy,
>>> What is the result of `lspci -nn | grep ISA` on your system? I uploaded
>>> a patch for Lewisburg PCI IDs here: https://review.coreboot.
>>> org/#/c/20922/
>>>
>>> I have tested Lewisburg PCH + W25Q256xxx and it seems to work. Let me
>>> know if you need any help applying the patch and testing it out on your
>>> system.
>>>
>>>
>>> On Tue, Aug 8, 2017 at 7:09 PM, Sandy Zhang <sanzh...@celestica.com>
>>> wrote:
>>>
>>>> Hi David,
>>>>
>>>> Do you know whether the configuration "Lewisburg PCH + W25Q256xxx SPI"
>>>> has been tested with the flashrom? thank you!
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 2017-08-08 3:55 GMT+08:00 David Hendricks <david.hendri...@gmail.com>:
>>>>
>>>>> Hi Sandy,
>>>>> Correct - The PCH will not allow us to write anything to regions which
>>>>> are not defined in the flash descriptor. You could add those regions to 
>>>>> the
>>>>> "BIOS" region if you wish to update them from your host OS. The SPI
>>>>> Programming Guide for your PCH (Lewisburg?) should also have info about
>>>>> additional regions which you may set up in the flash descriptor.
>>>>>
>>>>> "EW" means erase and write, "S" means skip (content does not need to
>>>>> change), "E" means erase only, "W" means write only
>>>>>
>>>>> On Mon, Aug 7, 2017 at 12:50 AM, Sandy Zhang <sanzh...@celestica.com>
>>>>> wrote:
>>>>>
>>>>>> Hi David,
>>>>>>
>>>>>> It seems that the below 2 regions are "write denied":
>>>>>>
>>>>>> 00A26000       00A35FFF     00010000        DER #1 Region
>>>>>> 00A36000       00FEFFFF     005BA000        10 Gbe A Region
>>>>>>
>>>>>> By the way, can you tell me what is the other parament "EW", "S" and
>>>>>> "E" meana? thank you!
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> 2017-08-07 13:02 GMT+08:00 David Hendricks <david.hendri...@gmail.com
>>>>>> >:
>>>>>>
>>>>>>> Hi Sandy,
>>>>>>> It might not have done what you expect. The error is because offsets
>>>>>>> 0xa26000-0xffffff are not defined in the flash descriptor, so the PCH 
>>>>>>> gives
>>>>>>> us an error when flashrom attempts to update it. ":WD" next to the 
>>>>>>> offsets
>>>>>>> in the log means "write denied".
>>>>>>>
>>>>>>> If you wish to update that region of the ROM then you must change
>>>>>>> your flash descriptor to include it and set the permissions to enable 
>>>>>>> read
>>>>>>> and write.
>>>>>>>
>>>>>>>
>>>>>>> On Sun, Aug 6, 2017 at 8:20 PM, Sandy Zhang <sanzh...@celestica.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hi David,
>>>>>>>>
>>>>>>>> Attachment is the log file when flash bios into Winbond 32MB SPI
>>>>>>>> rom,  could you help to check if it's updated sucessfully? thank you!
>>>>>>>>
>>>>>>>> 2017-08-05 10:45 GMT+08:00 Sandy Zhang <sanzh...@celestica.com>:
>>>>>>>>
>>>>>>>>> Hi David,
>>>>>>>>>
>>>>>>>>> Thank you very much, I will try to add the patch to flashrom-0.9.9,
>>>>>>>>> As a BIOS engineer, it is a bit difficult for me to complete this.
>>>>>>>>> Do you know when will make it into a release tarball?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> BR
>>>>>>>>> Sandy
>>>>>>>>>
>>>>>>>>> 2017-08-05 0:05 GMT+08:00 David Hendricks <
>>>>>>>>> david.hendri...@gmail.com>:
>>>>>>>>>
>>>>>>>>>> On Aug 3, 2017 11:51 PM, "Sandy Zhang" <sanzh...@celestica.com>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> Hi David,
>>>>>>>>>>>
>>>>>>>>>>> Thanks for your reply, can you tell me where to download the
>>>>>>>>>>> flash package like "flashrom-0.9.9.tar" which is downloaded from the
>>>>>>>>>>> address ''https://www.flashrom.org/Downloads";?  thank you!
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> The Skylake patches have not made it into a release tarball yet.
>>>>>>>>>> Can you try using the git sources from https://review.coreboot.o
>>>>>>>>>> rg/cgit/flashrom.git? E.g:
>>>>>>>>>>
>>>>>>>>>> git clone https://review.coreboot.org/flashrom.git
>>>>>>>>>> git checkout origin/staging
>>>>>>>>>> make
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> BR
>>>>>>>>>>> Sandy
>>>>>>>>>>>
>>>>>>>>>>> 2017-08-04 14:35 GMT+08:00 David Hendricks <
>>>>>>>>>>> david.hendri...@gmail.com>:
>>>>>>>>>>>
>>>>>>>>>>>> Hi Sandy,
>>>>>>>>>>>> Skylake support was recently merged:
>>>>>>>>>>>> https://review.coreboot.org/18973
>>>>>>>>>>>>
>>>>>>>>>>>> However you may need to add your PCH PCI ID. What does `lspci
>>>>>>>>>>>> -nn | grep LPC` show on your test system?
>>>>>>>>>>>>
>>>>>>>>>>>> And yes, a 32MB ROM should work fine.
>>>>>>>>>>>>
>>>>>>>>>>>> On Mon, Jul 31, 2017 at 4:11 AM, Sandy Zhang <
>>>>>>>>>>>> sanzh...@celestica.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>
>>>>>>>>>>>>> Can you tell me when flashrom support Intel Purley platform
>>>>>>>>>>>>> Lewisburg PCH?
>>>>>>>>>>>>> and if it can support flash 32 MB SPI rom?
>>>>>>>>>>>>>  I am eager to your reply as soon as possible, thank you very
>>>>>>>>>>>>> much!
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>>
>>>>>>>>>>>>> *Best Regard!*
>>>>>>>>>>>>>
>>>>>>>>>>>>> *Sandy Zhang (* 张立康*)*
>>>>>>>>>>>>> *BIOS Engineer*
>>>>>>>>>>>>> *Global Design Service*
>>>>>>>>>>>>> *Celestica(Shanghai) R&D Center, China*
>>>>>>>>>>>>> *Mail: sanzh...@celestica.com <viter...@celestica.com>*
>>>>>>>>>>>>> *Mobile: (+86)15965353952 <+86%20159%206535%203952>*
>>>>>>>>>>>>> *Phone: (+86)021-61006028-7623*
>>>>>>>>>>>>>
>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>> flashrom mailing list
>>>>>>>>>>>>> flashrom@flashrom.org
>>>>>>>>>>>>> https://mail.coreboot.org/mailman/listinfo/flashrom
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>>
>>>>>>>>>>> *Best Regard!*
>>>>>>>>>>>
>>>>>>>>>>> *Sandy Zhang (* 张立康*)*
>>>>>>>>>>> *BIOS Engineer*
>>>>>>>>>>> *Global Design Service*
>>>>>>>>>>> *Celestica(Shanghai) R&D Center, China*
>>>>>>>>>>> *Mail: sanzh...@celestica.com <viter...@celestica.com>*
>>>>>>>>>>> *Mobile: (+86)15965353952 <+86%20159%206535%203952>*
>>>>>>>>>>> *Phone: (+86)021-61006028-7623*
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>>
>>>>>>>>> *Best Regard!*
>>>>>>>>>
>>>>>>>>> *Sandy Zhang (* 张立康*)*
>>>>>>>>> *BIOS Engineer*
>>>>>>>>> *Global Design Service*
>>>>>>>>> *Celestica(Shanghai) R&D Center, China*
>>>>>>>>> *Mail: sanzh...@celestica.com <viter...@celestica.com>*
>>>>>>>>> *Mobile: (+86)15965353952 <+86%20159%206535%203952>*
>>>>>>>>> *Phone: (+86)021-61006028-7623*
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>>
>>>>>>>> *Best Regard!*
>>>>>>>>
>>>>>>>> *Sandy Zhang (* 张立康*)*
>>>>>>>> *BIOS Engineer*
>>>>>>>> *Global Design Service*
>>>>>>>> *Celestica(Shanghai) R&D Center, China*
>>>>>>>> *Mail: sanzh...@celestica.com <viter...@celestica.com>*
>>>>>>>> *Mobile: (+86)15965353952 <+86%20159%206535%203952>*
>>>>>>>> *Phone: (+86)021-61006028-7623*
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>> *Best Regard!*
>>>>>>
>>>>>> *Sandy Zhang (* 张立康*)*
>>>>>> *BIOS Engineer*
>>>>>> *Global Design Service*
>>>>>> *Celestica(Shanghai) R&D Center, China*
>>>>>> *Mail: sanzh...@celestica.com <viter...@celestica.com>*
>>>>>> *Mobile: (+86)15965353952 <+86%20159%206535%203952>*
>>>>>> *Phone: (+86)021-61006028-7623*
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> *Best Regard!*
>>>>
>>>> *Sandy Zhang (* 张立康*)*
>>>> *BIOS Engineer*
>>>> *Global Design Service*
>>>> *Celestica(Shanghai) R&D Center, China*
>>>> *Mail: sanzh...@celestica.com <viter...@celestica.com>*
>>>> *Mobile: (+86)15965353952 <+86%20159%206535%203952>*
>>>> *Phone: (+86)021-61006028-7623*
>>>>
>>>
>>>
>>
>>
>> --
>>
>> *Best Regard!*
>>
>> *Sandy Zhang (* 张立康*)*
>> *BIOS Engineer*
>> *Global Design Service*
>> *Celestica(Shanghai) R&D Center, China*
>> *Mail: sanzh...@celestica.com <viter...@celestica.com>*
>> *Mobile: (+86)15965353952 <+86%20159%206535%203952>*
>> *Phone: (+86)021-61006028-7623*
>>
>
>
>
> --
>
> *Best Regard!*
>
> *Sandy Zhang (* 张立康*)*
> *BIOS Engineer*
> *Global Design Service*
> *Celestica(Shanghai) R&D Center, China*
> *Mail: sanzh...@celestica.com <viter...@celestica.com>*
> *Mobile: (+86)15965353952 <+86%20159%206535%203952>*
> *Phone: (+86)021-61006028-7623*
>
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