Date: Wed, 17 May 2023 13:11:18 +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: <CACA0VUhLi-HU5hJzV5xTSHVLBdoCCGKovY8fEgzbHXTfYD4JWQ@mail.gmail.com> In-Reply-To: <CAFDf7UL9iSHcaaOYwU5A8RVYZpYDL65v-2FCprsyL2FLz8Cc8Q@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>
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--0000000000007db46105fbe29676 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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 i= t. 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 an= d >>> 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=3D1 in config.txt which boosts the cpu frequency up to 1800 fo= r >> 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) > --0000000000007db46105fbe29676 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">Hi Nuno,<div><br></div><div>I'm not sure where to star= t - I just happened to notice in the documentation here:=C2=A0<a href=3D"ht= tps://www.raspberrypi.com/documentation/computers/config_txt.html">https://= www.raspberrypi.com/documentation/computers/config_txt.html</a> that the cp= u frequency Pi4B R1.4 was listed as 1800 if arm_boot=3D1 so I tried it.</di= v><div><br></div><div>Doug.</div><div><br></div><div><br></div></div><br><d= iv class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, 17 M= ay 2023 at 11:11, Nuno Teixeira <<a href=3D"mailto:eduardo@freebsd.org">= eduardo@freebsd.org</a>> wrote:<br></div><blockquote class=3D"gmail_quot= e" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-styl= e:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div dir=3D"lt= r"><div>Hello Doug,</div><div><br></div><div>I have too a 1.5 rpi but arm_b= oost=3D1 isn't doing anything, htop shows 1500Mhz when doing something = intensive.</div><div>I'm running 13.2 stable</div><div><br></div><div>D= o 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"g= mail_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>> escreve= u 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 0.8ex;border-left-width:1px;bo= rder-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-col= or:rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">I was able to build = an updated rpi-firmware port based on 1.20210805 and this boots successfull= y 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.</div></blockquote><div><br></div><div>I have a fir= st approximation of a fan driver which works with the 1.20210805 firmware (= actually, I substituted rpi-poe-plus.dtbo from 1.20210831 which just change= s 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 be= low 65 degrees which is nice, especially since I set arm_boost=3D1 in confi= g.txt which boosts the cpu frequency 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 any 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> --0000000000007db46105fbe29676--
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