[coreboot] POWER9 / Talos II coreboot support?

ron minnich rminnich at gmail.com
Fri Jun 8 03:05:58 CEST 2018


where are we on the docs at this point


On Thu, Jun 7, 2018 at 5:59 PM Timothy Pearson <
tpearson at raptorengineering.com> wrote:

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> For anyone wanting a more affordable development platform for POWER9,
> check out the Talos II Lite:
>
> https://raptorcs.com/TALOSIILITE/
>
> Hopefully we're getting down to a price point where coreboot development
> becomes more practical (if still a bit painful)?
>
> Looking forward to seeing coreboot on ppc64el systems!
>
> On 05/29/2018 03:45 PM, Timothy Pearson wrote:
> > Sorry, can't add today....it's a little over 6,000 pages of new
> > documentation.  Still, hardly light reading!
> >
> > On 05/29/2018 03:39 PM, Timothy Pearson wrote:
> >> Register documentation was published today.  Links to the three volumes
> >> (over 7000 pages of documentation!)
> >
> >>
> https://wiki.raptorcs.com/wiki/File:POWER9_Registers_vol1_version1.1_pub.pdf
> >
> >>
> https://wiki.raptorcs.com/wiki/File:POWER9_Registers_vol2_version1.2_pub.pdf
> >
> >>
> https://wiki.raptorcs.com/wiki/File:POWER9_Registers_vol3_version1.2_pub.pdf
> >
> >> That leaves only the PHB documentation in process at this point.  Almost
> >> there....
> >
> >> On 05/12/2018 02:34 AM, Timothy Pearson wrote:
> >>> On 05/03/2018 06:02 PM, ron minnich wrote:
> >
> >
> >>>> On Thu, May 3, 2018 at 1:20 PM Timothy Pearson
> >>>> <tpearson at raptorengineering.com <mailto:
> tpearson at raptorengineering.com>>
> >>>> wrote:
> >
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> >>>>     I think I was being a bit pessimistic / too careful here.  We're
> close
> >>>>     to getting the docs publicly released, but that doesn't help
> anyone
> >>>>     wanting access right now, which is why I mentioned the other
> route.
> >>>>     IBM's committed to getting the documentation released, they're
> just
> >>>>     making sure that what they release is actually correct for the
> products
> >>>>     it covers.
> >
> >>>>     It might make sense to get our "working group" together over the
> next
> >>>>     few weeks, by which time the documentation should be available in
> public
> >>>>     form.
> >
> >>>>     Are you interested in joining? :-)
> >
> >
> >>>> of course, but not until those docs are freed up.
> >
> >
> >>> We're getting there.  First manual to be released is the processor user
> >>> guide.  More to follow, including register documentation, in around a
> week.
> >
> >>> Users guide:
> >
> >>>
> https://wiki.raptorcs.com/wiki/File:POWER9_um_OpenPOWER_v20GA_09APR2018_pub.pdf
> >
> >>>> Context: I've been trying for 2 years now to get OPAL released under
> >>>> dual gpl2 licensing with the current apache2 license, apache2 and gpl2
> >>>> are not compatible, so we'd be in a bit of a mess should we use OPAL
> >>>> code in coreboot, and it would be easiest if we were able to use some
> of
> >>>> that code.
> >
> >>>> The first response from IBM was "why do you think you need coreboot?"
> I
> >>>> worked through that, and there was agreement in the end it ought to
> >>>> happen, said agreement reached about 2 years ago. Stuff Would Happen,
> I
> >>>> was told. After that, silence.
> >
> >>> We've reignited this.  It's underway. :-)
> >
> >>>> This is pretty much par for the course with Power. In 1990 I spent two
> >>>> years getting an agreement that would allow me to .... get more
> agreements.
> >
> >>> We've plowed through this already and are at the action point.  For the
> >>> most part, just let me know what you need and I'll see if we can get it
> >>> published.
> >
> >>>> So close doesn't count. Once I see the kind of docs I need to see, not
> >>>> requiring a clickwrap, and covering all aspects of every chip on your
> >>>> board, I'm in: I'll order a board. Until then, I can't really do much.
> >
> >>> Is the NIC an issue?  There are several people working on REing the
> >>> hardware with some great progress [1][2], but there's really no way to
> >>> get Broadcom to ever release official documentation.  Everything else
> on
> >>> the libre-friendly non-SAS version either has docs available or we are
> >>> close to getting them published.
> >
> >>>> Thanks for your efforts on Power!
> >
> >>> No problem!  We still consider Power the best path forward for powerful
> >>> libre systems at this point, getting really tired of the other vendors
> >>> actively working against efforts to create open firmware (this includes
> >>> SiFive at this point).
> >
> >>> Will keep you posted as we get more docs published online, but thought
> >>> you and the others here might at least be interested in the users
> guide.
> >
> >>>> ron
> >
> >
> >
> >>> [1] https://wiki.raptorcs.com/wiki/BCM5719
> >>> [2] IRC discussions on #talos-workstation
> >
> >
> >
>
> - --
> Timothy Pearson
> Raptor Engineering
> +1 (415) 727-8645 <(415)%20727-8645> (direct line)
> +1 (512) 690-0200 <(512)%20690-0200> (switchboard)
> https://www.raptorengineering.com
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