Date: Wed, 17 May 2023 13:47:02 +0100 From: Doug Rabson <dfr@rabson.org> To: Nuno Teixeira <eduardo@freebsd.org> Cc: freebsd-arm@freebsd.org Subject: Re: Raspberry Pi POE+ hat overlay Message-ID: <CACA0VUhzf25MiOGZasfEueO=H1rmN1MnNW8gnryGk1w_he2aog@mail.gmail.com> In-Reply-To: <CAFDf7U%2BCmcB0sPT8WmssQ7bhv2DaDSS4MXNELDTxKHVuVhgkSw@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>
next in thread | previous in thread | raw e-mail | index | archive | help
--0000000000004c0d7e05fbe316c0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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 trie= d 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 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 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 ca= n 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 testin= g >>>> with an rpi4B rev 1.5 with 'make -j4 buildworld' and the fan is keepin= g the >>>> cpu temperature below 65 degrees which is nice, especially since I set >>>> 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) > --0000000000004c0d7e05fbe316c0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">I'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" class=3D"gmail_attr">On Wed, 17 May 2023 at 13:45, Nuno Te= ixeira <<a href=3D"mailto:eduardo@freebsd.org">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-width:1px;border-left-style:solid;border-left-color= :rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div>Hey,</div><div><b= r></div><div>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.</di= v><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 fe= ature.</div><div><br></div><div>Cheers,<br></div></div><br><div class=3D"gm= ail_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 n= o dia quarta, 17/05/2023 =C3=A0(s) 13:11:<br></div><blockquote class=3D"gma= il_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-le= ft-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div di= r=3D"ltr">Hi Nuno,<div><br></div><div>I'm not sure where to start - I j= ust happened to notice in the documentation here:=C2=A0<a href=3D"https://w= ww.raspberrypi.com/documentation/computers/config_txt.html" target=3D"_blan= k">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 tr= ied 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">O= n Wed, 17 May 2023 at 11:11, Nuno Teixeira <<a href=3D"mailto:eduardo@fr= eebsd.org" target=3D"_blank">eduardo@freebsd.org</a>> wrote:<br></div><b= lockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-le= ft-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);pad= ding-left:1ex"><div dir=3D"ltr"><div>Hello Doug,</div><div><br></div><div>I= have too a 1.5 rpi but arm_boost=3D1 isn't doing anything, htop shows = 1500Mhz when doing something intensive.</div><div>I'm running 13.2 stab= le</div><div><br></div><div>Do I missing something?</div><div><br></div><di= v>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_at= tr">Doug Rabson <<a href=3D"mailto:dfr@rabson.org" target=3D"_blank">dfr= @rabson.org</a>> escreveu no dia ter=C3=A7a, 16/05/2023 =C3=A0(s) 17:19:= <br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8= ex;border-left-width:1px;border-left-style:solid;border-left-color: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@rabson.org</a>> wrote:<br></div><blockquote class=3D"gmail_= quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-= style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div dir= =3D"ltr">I was able to build an updated rpi-firmware port based on 1.202108= 05 and this boots successfully on pi400 as well as rpi4. With this, I can l= oad the rpi-poe-plus overlay and I just need to try and reverse engineer th= e undocumented mailbox API by reading the Linux code.</div></blockquote><di= v><br></div><div>I have a first approximation of a fan driver which works w= ith 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 testin= g with an rpi4B rev 1.5 with 'make -j4 buildworld' and the fan is k= eeping the cpu temperature below 65 degrees which is nice, especially since= I set arm_boost=3D1 in config.txt which boosts the cpu frequency up to 180= 0 for this board.</div><div><br></div><div>Does anyone have a pointer to th= e problem with firmware later than 20210805? Would it make any kind of sens= e 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> --0000000000004c0d7e05fbe316c0--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CACA0VUhzf25MiOGZasfEueO=H1rmN1MnNW8gnryGk1w_he2aog>