[coreboot] Suggestions for efficient development setup for Google Chromebooks

Vadim Bendebury vbendeb at chromium.org
Tue Oct 3 02:02:40 CEST 2017

note that this debug header is going away in new Chrome OS designs. Its
functionality is going to be provided by the closed case debugging (aka
CCD) facility, where authorized user using a special debug cable can gain
access to the AP and EC consoles, reprogram  AP and EC firmware, etc.


On Mon, Oct 2, 2017 at 2:57 PM, Julius Werner <jwerner at chromium.org> wrote:

> The only special thing about Chromebooks is that they have a
> standardized debug header, specified here:
> https://www.chromium.org/chromium-os/servo
> The header is not populated on consumer devices, but the footprint
> should still be there so you can solder it yourself. You can also just
> solder to the UART pins directly which are probably the most
> interesting ones to you. There are SPI lines on it too and it's even
> possible to hook up an EM100 over it, although I'm not 100% sure of
> the details for that (I usually find that the ROM itself flashes fast
> enough so I don't need an emulator).
> Feel free to ask if you have any questions about how coreboot works on
> your Jaq or Elm, happy to help!
> On Sun, Oct 1, 2017 at 11:31 PM, Paul Menzel
> <paulepanter at users.sourceforge.net> wrote:
> > Dear coreboot folks,
> >
> >
> > Do you have any suggestions on how to get an efficient development
> > setup for Google Chromebooks, which I’d describe as laptops with
> > soldered flash ROM chip. In my case, it’s a Medion AKOYA S2013
> > (google/veyron_jaq), and an Acer Chromebook R 13 (google/elm).
> >
> > I have access to a BeagleBone Black, a compatible clip and a Dediprog
> > EM100-Pro. As the flash ROM chip is not soldered, I guess only the
> > first two are of interest, as the chip is soldered and I am unable to
> > remove the chip, and solder a socket on it.
> >
> > I ask, because maybe I miss some unknown “feature” of the Google
> > Chromebooks, or there could be an emulator, like AMD SimNow, or
> > something similar.
> >
> >
> > Thanks,
> >
> > Paul
> > --
> > coreboot mailing list: coreboot at coreboot.org
> > https://mail.coreboot.org/mailman/listinfo/coreboot
> --
> coreboot mailing list: coreboot at coreboot.org
> https://mail.coreboot.org/mailman/listinfo/coreboot
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.coreboot.org/pipermail/coreboot/attachments/20171002/c1117700/attachment.html>

More information about the coreboot mailing list