Date: Wed, 17 May 2023 14:08:11 +0100 From: Nuno Teixeira <eduardo@freebsd.org> To: Doug Rabson <dfr@rabson.org> Cc: freebsd-arm@freebsd.org Subject: Re: Raspberry Pi POE+ hat overlay Message-ID: <CAFDf7U%2Bh8NbLRC4v=6KNhPFLYr7LQ1rK4nDzxa=wQ3u%2BEhBZLA@mail.gmail.com> In-Reply-To: <CACA0VUhzf25MiOGZasfEueO=H1rmN1MnNW8gnryGk1w_he2aog@mail.gmail.com> References: <CACA0VUh9-7o55pXcyn=Ep9mPexAkgjKLEKUh6HqMovTxe2_R0Q@mail.gmail.com> <E615D3BE-C12D-4960-BB01-AD2D40CA90A5@yahoo.com> <CACA0VUjCyhPCxBTn6h_HMOGjdFnivi5bnq4jgcg4i0bKY%2BF0PA@mail.gmail.com> <D6869D48-5661-4054-90D8-2B394CA5D25E@yahoo.com> <77CD0716-3BC8-47EB-8743-F2BD9CA43D31@yahoo.com> <432A1A16-9FE5-4339-AB38-8F3E03A5D4EF@yahoo.com> <CACA0VUhDwx%2BRmHU_OSFfGhjfbbbiy6HpurGL7WjM_i%2B0U7UpBQ@mail.gmail.com> <CACA0VUhdi2%2BGXpjmco0%2B5801t0Vso50Bat1UxJ2a4RJChxkU9w@mail.gmail.com> <CAFDf7UL9iSHcaaOYwU5A8RVYZpYDL65v-2FCprsyL2FLz8Cc8Q@mail.gmail.com> <CACA0VUhLi-HU5hJzV5xTSHVLBdoCCGKovY8fEgzbHXTfYD4JWQ@mail.gmail.com> <CAFDf7U%2BCmcB0sPT8WmssQ7bhv2DaDSS4MXNELDTxKHVuVhgkSw@mail.gmail.com> <CACA0VUhzf25MiOGZasfEueO=H1rmN1MnNW8gnryGk1w_he2aog@mail.gmail.com>
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--000000000000fc356d05fbe3614b Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable (...) I was meant using 13.2 not 12.3 :) Doug Rabson <dfr@rabson.org> escreveu no dia quarta, 17/05/2023 =C3=A0(s) 1= 3:47: > 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=3D1800' 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 =C3=A0(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=3D1 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=3D1 isn't doing anything, htop show= s >>>> 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 ter=C3=A7a, 16/05/2023 = =C3=A0(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 c= an 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 testi= ng >>>>> with an rpi4B rev 1.5 with 'make -j4 buildworld' and the fan is keepi= ng the >>>>> cpu temperature below 65 degrees which is nice, especially since I se= t >>>>> arm_boost=3D1 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) >> > --=20 Nuno Teixeira FreeBSD Committer (ports) --000000000000fc356d05fbe3614b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>(...)</div><div><br></div><div>I was meant using 13.2= not 12.3 :)<br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr"= class=3D"gmail_attr">Doug Rabson <<a href=3D"mailto:dfr@rabson.org">dfr= @rabson.org</a>> escreveu no dia quarta, 17/05/2023 =C3=A0(s) 13:47:<br>= </div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;b= order-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">I&= #39;m not sure about 12.3 either - you could try with 13.2 and see if that = makes a difference.</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" cl= ass=3D"gmail_attr">On Wed, 17 May 2023 at 13:45, Nuno Teixeira <<a href= =3D"mailto:eduardo@freebsd.org" target=3D"_blank">eduardo@freebsd.org</a>&g= t; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p= x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div d= ir=3D"ltr"><div>Hey,</div><div><br></div><div>Ok. I'm new to rpi4 and a= rm in general but tomorrow I will force 'arm_freq=3D1800' again jus= t to see it it crashes again.</div><div>I will check too what values linux = shows.</div><div><br></div><div>I don't know if firmware/uboot version = included in 12.3 supports this feature.</div><div><br></div><div>Cheers,<br= ></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail= _attr">Doug Rabson <<a href=3D"mailto:dfr@rabson.org" target=3D"_blank">= dfr@rabson.org</a>> escreveu no dia quarta, 17/05/2023 =C3=A0(s) 13:11:<= br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8e= x;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"= >Hi Nuno,<div><br></div><div>I'm not sure where to start - I just happe= ned to notice in the documentation here:=C2=A0<a href=3D"https://www.raspbe= rrypi.com/documentation/computers/config_txt.html" target=3D"_blank">https:= //www.raspberrypi.com/documentation/computers/config_txt.html</a> that the = cpu frequency Pi4B R1.4 was listed as 1800 if arm_boot=3D1 so I tried it.</= div><div><br></div><div>Doug.</div><div><br></div><div><br></div></div><br>= <div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, 17= May 2023 at 11:11, Nuno Teixeira <<a href=3D"mailto:eduardo@freebsd.org= " target=3D"_blank">eduardo@freebsd.org</a>> wrote:<br></div><blockquote= class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px so= lid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div>Hello Doug,</d= iv><div><br></div><div>I have too a 1.5 rpi but arm_boost=3D1 isn't doi= ng anything, htop shows 1500Mhz when doing something intensive.</div><div>I= 'm running 13.2 stable</div><div><br></div><div>Do I missing something?= </div><div><br></div><div>Could you take a look at my setup?</div><div><br>= </div><div>Thanks,<br></div></div><br><div class=3D"gmail_quote"><div dir= =3D"ltr" class=3D"gmail_attr">Doug Rabson <<a href=3D"mailto:dfr@rabson.= org" target=3D"_blank">dfr@rabson.org</a>> escreveu no dia ter=C3=A7a, 1= 6/05/2023 =C3=A0(s) 17:19:<br></div><blockquote class=3D"gmail_quote" style= =3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding= -left:1ex"><div dir=3D"ltr"><div dir=3D"ltr"></div><br><div class=3D"gmail_= quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, 13 May 2023 at 13:45, = Doug Rabson <<a href=3D"mailto:dfr@rabson.org" target=3D"_blank">dfr@rab= son.org</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"= margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-lef= t:1ex"><div dir=3D"ltr">I was able to build an updated rpi-firmware port ba= sed on 1.20210805 and this boots successfully on pi400 as well as rpi4. Wit= h this, I can load the rpi-poe-plus overlay and I just need to try and reve= rse engineer the undocumented mailbox API by reading the Linux code.</div><= /blockquote><div><br></div><div>I have a first approximation of a fan drive= r 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' a= nd the fan is keeping the cpu temperature below 65 degrees which is nice, e= specially since I set arm_boost=3D1 in config.txt which boosts the cpu freq= uency up to 1800 for this board.</div><div><br></div><div>Does anyone have = a pointer to the problem with firmware later than 20210805? Would it make a= ny kind of sense to try to get the fix into releng/13.2 as an errata?</div>= <div><br></div></div></div> </blockquote></div><br clear=3D"all"><br><span>-- </span><br><div dir=3D"lt= r"><div dir=3D"ltr"><span style=3D"color:rgb(102,102,102)">Nuno Teixeira<br= >FreeBSD Committer (ports)</span></div></div> </blockquote></div> </blockquote></div><br clear=3D"all"><br><span>-- </span><br><div dir=3D"lt= r"><div dir=3D"ltr"><span style=3D"color:rgb(102,102,102)">Nuno Teixeira<br= >FreeBSD Committer (ports)</span></div></div> </blockquote></div> </blockquote></div><br clear=3D"all"><br><span class=3D"gmail_signature_pre= fix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature"><div dir=3D"l= tr"><span style=3D"color:rgb(102,102,102)">Nuno Teixeira<br>FreeBSD Committ= er (ports)</span></div></div> --000000000000fc356d05fbe3614b--
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