[coreboot] POWER9 / Talos II coreboot support?
Timothy Pearson
tpearson at raptorengineering.com
Tue May 29 22:45:08 CEST 2018
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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 (direct line)
+1 (512) 690-0200 (switchboard)
https://www.raptorengineering.com
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