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

Taiidan at gmx.com Taiidan at gmx.com
Tue Mar 7 06:23:37 CET 2017

Uhh thanks but that's kinda missing the point of this - that I don't 
want binaries from random people on the internet.

I need to know how to extract it from the bios update files, not the 
bios already on the EEPROM.

On 03/06/2017 11:35 PM, Matt DeVillier wrote:
> 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.
>> --
>> coreboot mailing list: coreboot at coreboot.org
>> https://www.coreboot.org/mailman/listinfo/coreboot

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