[OpenPower-Firmware] Hardware documentation

[Daniel M Crowell]

Check out
https://github.com/open-power/hostboot/blob/master/src/usr/vpd/ipvpd.C ,
lots of comments in there.  Basically there is a table-of-contents sort of
structure.  There are a bunch of records (4 letter names) that contain a
bunch of keywords (2 letter names).  If you follow the seeprom codepath in
that file you should get a decent idea of what is going on.  I haven't
found any public documents that describe the format yet.

--
Dan Crowell
Senior Software Engineer - Power Systems Enablement Firmware
IBM Rochester: t/l 553-2987
dcrowell at us.ibm.com



From:	"Marty E. Plummer" <hanetzer at startmail.com>
To:	Daniel M Crowell <dcrowell at us.ibm.com>
Cc:	ajd at linux.ibm.com, openpower-firmware at lists.ozlabs.org
Date:	10/17/2019 11:54 PM
Subject:	[EXTERNAL] Re: [OpenPower-Firmware] Hardware documentation




> > On 18/10/19 11:39 am, Marty E. Plummer wrote:
> > Interesting. Is there a simple way to read the vpd from say a
> > linux userspace? Either host or bmc.
> On Fri, Oct 18, 2019 at 03:55:38AM +0000, Daniel M Crowell wrote:
> There is work happening as we speak to get VPD support into OpenBMC,
> check out their repos/channels/whatever.
Ah, ok. Cool to know. Also with regards to that I'm hoping that
*somewhere* there is some documentation on the formatting of that. Will
dig into the hostboot/skiboot code.

--
Regards,
Marty
> --
> Dan Crowell
> Senior Software Engineer - Power Systems Enablement Firmware
> IBM Rochester: t/l 553-2987
> dcrowell at us.ibm.com



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