[coreboot] Where to get ME image/flash descriptors for the x220?

[Matt DeVillier]

I have the IFD and ME from an x220 that I recently flashed with coreboot
for a customer, extracted from their stock firmware, and verified working
with the coreboot ROM I subsequently flashed.  Can zip and send via email,
or whatever you prefer

On Mon, Mar 6, 2017 at 10:23 PM, Taiidan at gmx.com <Taiidan at gmx.com> wrote:

> On 03/05/2017 05:20 AM, Arthur Heymans wrote:
>
> "Taiidan at gmx.com" <Taiidan at gmx.com> writes:
>>
>> Well I managed to download the latest BIOS from the lenovo site, which
>>> includes an ME update now the issue is that I can't seem to figure out
>>> how to extract it from the .FL1 and .FL2 files.
>>>
>>> Those might have a length too long to fit a flash so you need to trim
>> those down before using ifdtool on those (If they contain and ifd of
>> course)
>> so depending on size of rom
>> dd if=FL1(or 2)file of=vendor_bios.rom bs=1 count=xM
>>
>> and then ifdtool -x vendor_bios.rom
>>
> It didn't work :( after that still "no flash descriptor found in this
> image"
>
> These are the files and the flash chip on the board is 8M
> 8523776 '$01CB000.FL1'
> 8523776 '$01CB000.FL2'
> 8523776 '$01CB100.FL2'
> All of them have different hashes, but I do not know what makes them
> different (maybe it is for various board revisions?)
>
>
>> I would also like to know as to how I can re-flash the EC firmware if
>>> that could potentially cause problems, I of course do not know if it
>>> has DMA.
>>>
>>> Only existing tool to flash EC is using vendor tool.
>> EC are only accessed trough port mapped IO (or on newer ones also via
>> memory mapped IO). EC itself does not have DMA afaik.
>>
>>
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