[coreboot] OpenBMC & KGPE-D16

Elisenda Cuadros lists at e4L.es
Sat Feb 24 00:09:02 CET 2018


Sorry, I need to read better.

Thank you.

I am going to try the patches now.

Regards,

- Eli


On 24/02/18 00:01, Timothy Pearson wrote:
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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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