[coreboot] OpenBMC & KGPE-D16

[Timothy Pearson]

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You need these patches:

https://review.coreboot.org/#/c/19822/

This one in particular:

https://review.coreboot.org/#/c/coreboot/+/19820/

This is noted on the Raptor status page:

https://www.raptorengineering.com/coreboot/kgpe-d16-bmc-port-status.php

See the link to "Initial coreboot patches".

If anyone wants to take over upstreaming of the patches in that list
they are welcome to do so!

On 02/23/2018 04:38 PM, Elisenda Cuadros wrote:
> 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.


- -- 
Timothy Pearson
Raptor Engineering
+1 (415) 727-8645 (direct line)
+1 (512) 690-0200 (switchboard)
https://www.raptorengineering.com
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