[coreboot] OpenBMC & KGPE-D16

Thierry Laurion thierry.laurion at gmail.com
Sat Feb 24 14:02:57 CET 2018


Timothys patches were mot included un coreboot
https://review.coreboot.org/#/c/coreboot/+/19822/

Le ven. 23 févr. 2018 17:40, Elisenda Cuadros <lists at e4l.es> a écrit :

> Hello,
>
> Thank you for your reply.
>
> I reflashed (same build) the BMC module with a hotplug. Now it works
> like a charm, it got an ip, I can log through ssh, reboot, etc..
>
> But now I have a new problem. If I try to boot from a halted system,
> with BMC module attached, the system fires up but Coreboot hangs:
>
> Unable to detect valid memory on any nodes.  Halting!
> mct_d: fatalexit
>
> If I remove the BMC module the system boots fine.
>
> I have 4 Micron MT18JSF25672PDZ-1G4F1DD modules, located in CPU1 orange
> slots.
>
> I attach both console logs.
>
> Regards,
>
> - Eli
>
>
>
> On 22/02/18 22:36, Timothy Pearson wrote:
> > Actually, for OpenBMC work, hotplugging is often the only way to go.
> > Just be very careful to align the pins correctly the first time; you
> > don't have a second chance if you misalign the pins and fry the module...
> >
> > On 02/22/2018 03:22 PM, Taiidan at gmx.com wrote:
> >> On 02/17/2018 09:46 AM, Elisenda Cuadros wrote:
> >>
> >>> Hi,
> >>>
> >>> Now I trying to use your OpenBMC port.
> >>>
> >>> I followed the instructions and everything was fine (compiling,
> >>> reading and flashing). I waited several minutes after flashing, but
> >>> the module didn 't blinked like in the vendor rom, nor did it receive
> >>> an ip.
> >>>
> >>> I halted the system because I thought maybe it needs a cold start.
> >>>
> >>> After this, the system doesn't boot with the module plugged in. The
> >>> fans begin to spin for approximately 1/4 second, but nothing else.
> >>>
> >>> My two fans (1 cpu & 1 chassis) have 3 pins and are low speed
> (~1000rpm)
> >>>
> >>> In the case I have to reflash the module, is it possible to hotplug it?
> >> Hotplugging is dangerous and not supported, don't do it.
> >>> Thank you very much for your support.
> >> You can use a test clip to externally flash it via a flashing device
> >> (not sure which can do 16 pins though, I would inquire on the flashrom
> >> mailinglist)
> >>
> >> Are you using the latest coreboot? AFAIK coreboot was patched to support
> >> OpenBMC, so you need a new version with the patches.
> --
> coreboot mailing list: coreboot at coreboot.org
> https://mail.coreboot.org/mailman/listinfo/coreboot
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