I have populated the RPi 4B project with some starting issues to tackle for
the 4B implementation. I see that the project is marked as private; is
there any way to make it visible to potential contributors just visiting
the GitHub page? I think if they can see a list of issues in one place when
they go to the page it might help.

Thanks,
Matteo

On Mon, Sep 1, 2025 at 3:02 PM Tomek CEDRO <to...@cedro.info> wrote:

> Thank you Linguini, good luck and have fun! :-)
> Tomek
>
> On Mon, Sep 1, 2025 at 8:48 PM Matteo Golin <matteo.go...@gmail.com>
> wrote:
> >
> > To update the community, we've been told by Gordon that the Pi Foundation
> > doesn't have any documentation for the chip beyond what was written in
> the
> > peripheral datasheet. Broadcom themselves has written the Linux drivers
> and
> > Raspberry Pi has only made some slight bug fixes, etc. We've been
> suggested
> > to read the source to discover undocumented registers/configuration
> options.
> >
> > I plan to still continue with the port until the feature set on NuttX is
> > equal or greater to what is available on QNX. I at least want to get
> > Ethernet and some graphics running after the base peripheral set (I2C,
> SPI,
> > UART) are supported.
> >
> > Matteo
> >
> > On Sun, Aug 31, 2025 at 6:10 PM Matteo Golin <matteo.go...@gmail.com>
> wrote:
> >
> > > Very interesting Sebastian. I got that impression from Broadcom when I
> was
> > > initially trying to port NuttX to the Pi. The inability to submit
> forms on
> > > their website seems like it might be by design...
> > >
> > > I'm hopeful the Raspberry Pi Foundation will have something more for
> us to
> > > work with, they seem more positive to FOSS. Otherwise I will still
> continue
> > > with reverse engineering until at least the point where the
> functionality
> > > driver-wise is on par with QNX.
> > >
> > > On Sun, Aug 31, 2025, 10:46 AM Tomek CEDRO <to...@cedro.info> wrote:
> > >
> > >> James Dougherty contacted us with Gordon Hollingworth from Raspberry
> > >> Pi Foundation recently :-) We are waiting for response :-) I really
> > >> hope we can get some sort of documentation and/or code samples to
> > >> write high quality NuttX port for the big raspberries :-)
> > >>
> > >> Open-Source matters even more in this crazy world. Thanks for
> > >> interesting article Sebastien! Personally I think we should focus only
> > >> on vendors that support Open-Source. What is the reason for bumping
> > >> sales for companies that in the end can sue you for reversing? :D
> > >>
> > >> Have a good day folks :-)
> > >> Tomek
> > >>
> > >>
> > >>
> > >> On Sun, Aug 31, 2025 at 10:15 AM Sebastien Lorquet <
> sebast...@lorquet.fr>
> > >> wrote:
> > >> >
> > >> > Hello,
> > >> >
> > >> > I just found this interesting document:
> > >> >
> > >> >
> > >>
> https://fastcode.io/2025/08/30/the-69-billion-domino-effect-how-vmwares-debt-fueled-acquisition-is-killing-open-source-one-repository-at-a-time/
> > >> >
> > >> > In a summary, if you expect anything cool from broadcom: dont.
> > >> >
> > >> > go go go reverse engineering!
> > >> >
> > >> > Sebastien
> > >> >
> > >> >
> > >> > On 8/29/25 15:37, Tomek CEDRO wrote:
> > >> > > No response from #infra@slack, I just sent request to
> > >> > > dev@community.apache mailing list maybe someone can reply over
> there
> > >> > > :-)
> > >> > >
> > >> > > https://lists.apache.org/thread/n9y5vrvjm23npwgbr45f7zq5ys5l8dok
> > >> > >
> > >> > > We should also know the official stance from Broadcom and RPI
> > >> Foundation :-)
> > >> > >
> > >> > > Thanks :-)
> > >> > > Tomek
> > >> > >
> > >> > > On Thu, Aug 28, 2025 at 9:35 PM Tomek CEDRO <to...@cedro.info>
> wrote:
> > >> > >> I just asked question at #asfinfra / slack, maybe someone can
> help
> > >> > >> there or recommend someone who can, waiting for response :-)
> > >> > >>
> > >> > >> For a good start you can contact Broadcom and RaspberryPi
> Foundation,
> > >> > >> introduce yourself as Apache NuttX RTOS developer that want to
> port
> > >> > >> NuttX to rPI boards, and just ask if DataSheets are available
> :-) We
> > >> > >> will know then first hand if this is possible or are there any
> > >> > >> problems / requirements :-)
> > >> > >>
> > >> > >> You can ask for 4B and probably Zero-2W SoC documentation these
> seems
> > >> > >> most popular nowadays :-)
> > >> > >>
> > >> > >> Thanks :-)
> > >> > >> Tomek
> > >> > >>
> > >> > >>
> > >> > >>
> > >> > >> On Thu, Aug 28, 2025 at 8:45 PM Matteo Golin <
> matteo.go...@gmail.com>
> > >> wrote:
> > >> > >>> Hi Tomek,
> > >> > >>>
> > >> > >>> Thanks so much! I actually hadn't thought of that, maybe we
> could
> > >> ask for
> > >> > >>> help from the foundation. Do you know who's the best point of
> > >> contact for
> > >> > >>> that?
> > >> > >>>
> > >> > >>> I know Linux must have received the datasheets to make
> Raspberry Pi
> > >> OS. No
> > >> > >>> offence to NuttX, but Linux is pretty popular in comparison. If
> > >> Broadcom or
> > >> > >>> Raspberry Pi would release us some information that would be an
> > >> immense
> > >> > >>> help. I suspect there was some kind of deal with the Linux group
> > >> but I have
> > >> > >>> no idea. I believe even QNX didn't have access to the datasheets
> > >> and rather
> > >> > >>> just reverse engineered the Linux drivers.
> > >> > >>>
> > >> > >>> Matteo
> > >> > >>>
> > >> > >>> On Thu, Aug 28, 2025, 12:42 PM Tomek CEDRO <to...@cedro.info>
> > >> wrote:
> > >> > >>>
> > >> > >>>> On Tue, Aug 26, 2025 at 10:05 PM Matteo Golin <
> > >> matteo.go...@gmail.com>
> > >> > >>>> wrote:
> > >> > >>>>> I2C still needs some work unfortunately. However, I agree
> with you
> > >> > >>>>> generally. Personally, I think HDMI, networking (including
> WiFi
> > >> and BLE)
> > >> > >>>>> and some kind of interaction with storage (eMMC or SD card)
> are
> > >> the most
> > >> > >>>>> important. Unfortunately, those are likely going to be the
> most
> > >> difficult
> > >> > >>>>> because of the lack of documentation on the peripherals. It is
> > >> definitely
> > >> > >>>>> not an impossible task, but it will be challenging. Hence my
> > >> request for
> > >> > >>>>> creating the new project roadmap, so maybe some discoveries
> can be
> > >> > >>>>> documented there and more eyes can get on the RPi
> implementation.
> > >> > >>>> The lack of documentation is a real pain, and known issue for
> > >> years in
> > >> > >>>> many areas, but some vendors are especially famous for that.
> > >> > >>>>
> > >> > >>>> Considering someone wants to create Open-Source drivers for
> free
> > >> and
> > >> > >>>> bring customers to the vendor.
> > >> > >>>>
> > >> > >>>> Maybe we could ask Apache Foundation for help in obtaining
> required
> > >> > >>>> datasheets? :-)
> > >> > >>>>
> > >> > >>>> --
> > >> > >>>> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
> > >> > >>>>
> > >> > >>
> > >> > >>
> > >> > >> --
> > >> > >> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
> > >> > >
> > >> > >
> > >>
> > >>
> > >>
> > >> --
> > >> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
> > >>
> > >
>
>
>
> --
> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
>

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