Date: Wed, 27 Nov 2024 15:52:52 +0200 From: Stanislav Silnicki <stanislav.silnicki@mailgate.us> To: freebsd-arm@freebsd.org Subject: Re: Radxa Zero and FreeBSD : happy marriage ? Message-ID: <581f2cf5-64cf-4cd6-8045-ed0c7ed756f7@mailgate.us> In-Reply-To: <3D376BD7-AA62-427E-99C0-8C91941E9763@ketas.si.pri.ee> References: <CA%2B1FSigKVnfUm47GGVmxLNKcsSUdofTfdW-7%2B41E5ta4syCDCQ@mail.gmail.com> <9211C7C9-FB09-4EB0-A315-BB86865EE9BC@yahoo.com> <CA%2B1FSihbt7aOtq-hKAMg=uuGMnr6bquvv5dS1YN2foKSb4=Wiw@mail.gmail.com> <CAGtf9xNKiWRr64JiodccKntqGkS16Yru-_wYsZ1iSEDs4uYM9A@mail.gmail.com> <CANCZdfq%2BCBepBJTdUf5bn6aAO4HYjrxtMETqORE-3F3kbHvbyQ@mail.gmail.com> <CA%2B1FSij7pRd9dUUffELuL%2BvcAMJWDoQWDjgpze81GO3BWaws2A@mail.gmail.com> <3D376BD7-AA62-427E-99C0-8C91941E9763@ketas.si.pri.ee>
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<p><font face=3D"JetBrains Mono">from my point of view, 32bit platfor=
m
is not a big problem.</font></p>
<p><font face=3D"JetBrains Mono">My roadmap of similar project is to
port fbsd to stm32mp1 (booting is done, while mounting root
requires SD driver, which I decided to leave in secure TZ,
rewriting fsbl for that reason) and expose SD to the kernel as a
trivial char device (may be some kernel glue). <br>
</font></p>
<p><font face=3D"JetBrains Mono">As for the video, I chosen DSI
interface, but have not tested custom screen I ordered for it
yet. At least I hope to create kind of "suppported" hardware
environment to be able to boot FBDS, Linux, etc.</font></p>
<p><font face=3D"JetBrains Mono">So, I see no problems using 32bit as=
playground. Familiarizing myself with some aspects of
fsbl/tz/power management and then go further to stm32mp2, which
may become a 10+ years old smartphone with FBSD targeted towards
security, modularity, openness. <br>
</font></p>
<div class=3D"moz-cite-prefix">On 11/25/24 18:17, Sulev-Madis Silber
wrote:<br>
</div>
<blockquote type=3D"cite"
cite=3D"mid:3D376BD7-AA62-427E-99C0-8C91941E9763@ketas.si.pri.ee">
<pre wrap=3D"" class=3D"moz-quote-pre">i see that you have chicken =
and egg problem here. you want to build a phone on fbsd. that could be ma=
ybe some high security device designed for governments at first, general =
public later. that could bring lot of development onto fbsd, resulting in=
higher popularity, funding too, all related to battery powered embedded =
devices. more security research (and malware :() too. the problem is that=
fbsd doesn't really support any of that. there is embedded and it's used=
even commercially but so much of work needs to be done that it would req=
uire a lot. i did read briefly that you even ended up having fights with =
people seemingly on who will do this work. i bet someone will, provided s=
omeone gives them food. that could come from people who buy this. hell, t=
his needs whole team. there are big companies contributing, if you watch =
commit logs, but they focus on amd64 only. sorry to see this fizzling out=
as idea is super cool. perhaps you could build basically working prototy=
pe on something existing. i have h3 here which works well except it's 32b=
it so it's going out soon and video is hard if not impossible. (my projec=
t will not require video nor battery). but you know all that i see. this =
is not first time. i think openmoko freerunner poorly ran fbsd too, my fr=
iend had that working i recall. how you're going to pull it off i have no=
idea. i'm not good in any of those fields either. happy to test somethin=
g tho. have a good luck with this masterpiece
</pre>
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