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
