Re: [coreboot] Atom c3000 Harcuvar and Intel ME

[Julien Viard de Galbert]

> Le 27 févr. 2018 à 13:42, Sumo  a écrit :
> > When configuring CB with menuconfig you have to select your platform
> > and type in the path to your ME-binary-blob.
>
> For the Harcuvar CRB there is no such configuration.
>
> This conf. is available to other mainboards (e.g. Intel "Little Plains" mainboard:
> menu "Chipset"->"Intel Firmware"->"Add Intel descriptor.bin file"->"Add Intel
> ME/TXE firmware"->"Path to management engine firmware").
>
> Maybe for the Harcuvar CRB the Intel ME FW is installed in the second
> SPI flash, therefore there is no need to add the ME blob in the coreboot
> build? I´m not sure about this, some board maintainer can confirm
> this?

No it’s in the same flash. Basically your first idea is what I am doing:
> replace the BIOS region of the SPI flash (0x00800000–0x00ffffff)

Or use intel fitc tool to build the final SPI image.
> Do we have any documentation regarding the coreboot port for Harcuvar?

Do you have access to intel support ? If yes there should be a document, but
I’m not even sure it has been updated when the support was upstreamed.

Hope this helps,

Julien VdG
> Thanks,
> Sumo
>
> 2018-02-26 19:42 GMT-03:00 Philipp Stanner <[e-mail] >:
> Am Montag, den 26.02.2018, 17:14 -0300 schrieb Sumo:
> > Hi,
> >
> > In the coreboot build menu there is no option regarding the Intel ME
> > integration.
> > The 'coreboot.rom' file is the full SPI flash image or this file is
> > suitable to
> > replace the BIOS region of the SPI flash (0x00800000--0x00ffffff)?
> > (i.e. in the SPI flash we already have a region for Intel ME
> > firmware)
>
> I'm not sure what the question is.
>
> When configuring CB with menuconfig you have to select your platform
> and type in the path to your ME-binary-blob. The later has to be
> provided by you; meaning you have to extract the BIOS from the flash,
> extract the ME-binary using coreboot/utils, clean it with ME-cleaner
> (optional) and then build coreboot with your blob.
>
> The toolchain takes care automatically about the correct placement of
> the ME in the right address-ranges.
>
> I hope this was helpful.
> > Thanks,
> > Sumo