<html><body><p><font size="2">Check out <a href="https://github.com/open-power/hostboot/blob/master/src/usr/vpd/ipvpd.C">https://github.com/open-power/hostboot/blob/master/src/usr/vpd/ipvpd.C</a> , 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.</font><br><font size="2"><br>--<br>Dan Crowell<br>Senior Software Engineer - Power Systems Enablement Firmware<br>IBM Rochester: t/l 553-2987<br>dcrowell@us.ibm.com</font><br><br><img width="16" height="16" src="cid:1__=09BB0E04DFC35A898f9e8a93df938690918c09B@" border="0" alt="Inactive hide details for "Marty E. Plummer" ---10/17/2019 11:54:27 PM---> > On 18/10/19 11:39 am, Marty E. Plummer wrote: > > "><font size="2" color="#424282">"Marty E. Plummer" ---10/17/2019 11:54:27 PM---> > On 18/10/19 11:39 am, Marty E. Plummer wrote: > > Interesting. Is there a simple way to read the</font><br><br><font size="2" color="#5F5F5F">From: </font><font size="2">"Marty E. Plummer" <hanetzer@startmail.com></font><br><font size="2" color="#5F5F5F">To: </font><font size="2">Daniel M Crowell <dcrowell@us.ibm.com></font><br><font size="2" color="#5F5F5F">Cc: </font><font size="2">ajd@linux.ibm.com, openpower-firmware@lists.ozlabs.org</font><br><font size="2" color="#5F5F5F">Date: </font><font size="2">10/17/2019 11:54 PM</font><br><font size="2" color="#5F5F5F">Subject: </font><font size="2">[EXTERNAL] Re: [OpenPower-Firmware] Hardware documentation</font><br><hr width="100%" size="2" align="left" noshade style="color:#8091A5; "><br><br><br><tt><font size="2"><br>> > On 18/10/19 11:39 am, Marty E. Plummer wrote:<br>> > Interesting. Is there a simple way to read the vpd from say a<br>> > linux userspace? Either host or bmc.<br>> On Fri, Oct 18, 2019 at 03:55:38AM +0000, Daniel M Crowell wrote:<br>> There is work happening as we speak to get VPD support into OpenBMC,<br>> check out their repos/channels/whatever.<br>Ah, ok. Cool to know. Also with regards to that I'm hoping that<br>*somewhere* there is some documentation on the formatting of that. Will<br>dig into the hostboot/skiboot code.<br><br>--<br>Regards,<br>Marty<br>> --<br>> Dan Crowell<br>> Senior Software Engineer - Power Systems Enablement Firmware<br>> IBM Rochester: t/l 553-2987<br>> dcrowell@us.ibm.com<br><br></font></tt><br><br><BR>
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