Date: Wed, 17 May 2023 13:44:48 +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%2BCmcB0sPT8WmssQ7bhv2DaDSS4MXNELDTxKHVuVhgkSw@mail.gmail.com> In-Reply-To: <CACA0VUhLi-HU5hJzV5xTSHVLBdoCCGKovY8fEgzbHXTfYD4JWQ@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>
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--000000000000531deb05fbe30ea5 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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) 1= 3:11: > 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 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 can= load >>>> the rpi-poe-plus overlay and I just need to try and reverse engineer t= he >>>> 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 f= or >>> 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) >> > --=20 Nuno Teixeira FreeBSD Committer (ports) --000000000000531deb05fbe30ea5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>Hey,</div><div><br></div><div>Ok. I'm new to rpi4= and arm in general but tomorrow I will force 'arm_freq=3D1800' aga= in just 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 ve= rsion included in 12.3 supports this feature.</div><div><br></div><div>Chee= rs,<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.o= rg</a>> escreveu no dia quarta, 17/05/2023 =C3=A0(s) 13:11:<br></div><bl= ockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-lef= t:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">Hi Nuno,<di= v><br></div><div>I'm not sure where to start - I just happened to notic= e in the documentation here:=C2=A0<a href=3D"https://www.raspberrypi.com/do= cumentation/computers/config_txt.html" target=3D"_blank">https://www.raspbe= rrypi.com/documentation/computers/config_txt.html</a> that the cpu frequenc= y 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 solid rg= b(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div>Hello Doug,</div><di= v><br></div><div>I have too a 1.5 rpi but arm_boost=3D1 isn't doing any= thing, 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" tar= get=3D"_blank">dfr@rabson.org</a>> escreveu no dia ter=C3=A7a, 16/05/202= 3 =C3=A0(s) 17:19:<br></div><blockquote class=3D"gmail_quote" style=3D"marg= in:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1e= x"><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 Rab= son <<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:0= px 0px 0px 0.8ex;border-left:1px solid 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 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 engi= neer the undocumented mailbox API by reading the Linux code.</div></blockqu= ote><div><br></div><div>I have a first approximation of a fan driver which = works with the 1.20210805 firmware (actually, I substituted rpi-poe-plus.dt= bo 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 f= an is keeping the cpu temperature below 65 degrees which is nice, especiall= y since I set arm_boost=3D1 in config.txt which boosts the cpu frequency up= to 1800 for this board.</div><div><br></div><div>Does anyone have a pointe= r 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> </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> --000000000000531deb05fbe30ea5--
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