Am Fri, Sep 17, 2021 at 01:18:53AM +0200 schrieb Nico Huber:

> On 16.09.21 17:29, Andreas Bauer wrote:
> > May I suggest the best way forward would be to compile coreboot with
> > debug options and go ahead and flash it. You will find out quickly
> > where the issues are. Obviously backup your current rom !
> 
> Not likely, but you can harm the hardware with such brute-force testing,
> see about GPIOs below.

Thanks for that heads up. I guess I was just lucky, but when you don't have
schematics, lack experience in hardware development and such, the best I
could do was this "brute force" testing.
 
My impression was that the OP is in the same situation as I was (missing
knowledge), and in my case I decided to go ahead and try and eventually
archieved some success.

I did delete the GPIO config, though, and good for bringing that up as I
failed to mention that.

> >  - read vendor bios and extract descriptor.bin and me.bin from it
> >    (util/ifdtool -x vendor.bios)
> 
> Always good to keep a backup, but you don't need to extract these for
> coreboot. Just keep them where they are in flash, no need to extract
> /overwrite anything.

Well, if you want to clean the ME you obviously need that. I found it
easier to always produce a complete image that can just be flashed as
a whole.

regards,

Andreas
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