Re: Raspberry Pi POE+ hat overlay

(...)

I was meant using 13.2 not 12.3 :)

Doug Rabson <dfr@rabson.org> escreveu no dia quarta, 17/05/2023 à(s) 13:47:

> I'm not sure about 12.3 either - you could try with 13.2 and see if that
> makes a difference.
>
> On Wed, 17 May 2023 at 13:45, Nuno Teixeira <eduardo@freebsd.org> wrote:
>
>> Hey,
>>
>> Ok. I'm new to rpi4 and arm in general but tomorrow I will force
>> 'arm_freq=1800' again just to see it it crashes again.
>> I will check too what values linux shows.
>>
>> I don't know if firmware/uboot version included in 12.3 supports this
>> feature.
>>
>> Cheers,
>>
>> Doug Rabson <dfr@rabson.org> escreveu no dia quarta, 17/05/2023 à(s)
>> 13:11:
>>
>>> Hi Nuno,
>>>
>>> I'm not sure where to start - I just happened to notice in the
>>> documentation here:
>>> https://www.raspberrypi.com/documentation/computers/config_txt.html
>>> that the cpu frequency Pi4B R1.4 was listed as 1800 if arm_boot=1 so I
>>> tried it.
>>>
>>> Doug.
>>>
>>>
>>>
>>> On Wed, 17 May 2023 at 11:11, Nuno Teixeira <eduardo@freebsd.org> wrote:
>>>
>>>> Hello Doug,
>>>>
>>>> I have too a 1.5 rpi but arm_boost=1 isn't doing anything, htop shows
>>>> 1500Mhz when doing something intensive.
>>>> I'm running 13.2 stable
>>>>
>>>> Do I missing something?
>>>>
>>>> Could you take a look at my setup?
>>>>
>>>> Thanks,
>>>>
>>>> Doug Rabson <dfr@rabson.org> escreveu no dia terça, 16/05/2023 à(s)
>>>> 17:19:
>>>>
>>>>>
>>>>> On Sat, 13 May 2023 at 13:45, Doug Rabson <dfr@rabson.org> wrote:
>>>>>
>>>>>> I was able to build an updated rpi-firmware port based on 1.20210805
>>>>>> and this boots successfully on pi400 as well as rpi4. With this, I can load
>>>>>> the rpi-poe-plus overlay and I just need to try and reverse engineer the
>>>>>> undocumented mailbox API by reading the Linux code.
>>>>>>
>>>>>
>>>>> I have a first approximation of a fan driver which works with the
>>>>> 1.20210805 firmware (actually, I substituted rpi-poe-plus.dtbo from
>>>>> 1.20210831 which just changes the fan levels for the POE+). I'm testing
>>>>> with an rpi4B rev 1.5 with 'make -j4 buildworld' and the fan is keeping the
>>>>> cpu temperature below 65 degrees which is nice, especially since I set
>>>>> arm_boost=1 in config.txt which boosts the cpu frequency up to 1800 for
>>>>> this board.
>>>>>
>>>>> Does anyone have a pointer to the problem with firmware later than
>>>>> 20210805? Would it make any kind of sense to try to get the fix into
>>>>> releng/13.2 as an errata?
>>>>>
>>>>>
>>>>
>>>> --
>>>> Nuno Teixeira
>>>> FreeBSD Committer (ports)
>>>>
>>>
>>
>> --
>> Nuno Teixeira
>> FreeBSD Committer (ports)
>>
>

-- 
Nuno Teixeira
FreeBSD Committer (ports)