Actually inside drivers/ are supposed to have only generic drivers (upper half drivers that work with all chips).
Please don't use drivers/ for arch specific drivers, that is not the way NuttX is supposed to be. Today we don't have a simple way to share arch drivers, as you can see for each stm32, stm32f7, stm32h7, etc the drivers are implemented/duplicated again. This is something we need to fix the right way! BR, Alan On Tue, Aug 27, 2024 at 5:24 AM Sebastien Lorquet <sebast...@lorquet.fr> wrote: > Hi, > > My personal opinion: use arch/arm/src/rp23xx and arch/risc-v/src/rp23xx > > With shared drivers in drivers/rp23xx > > And separate board configs for arm and riscv. > > Not sure if nuttx wants to support an hybrid arm+riscv port as a single > build ! > > So there is no need to invent new dirs. > > Sebastien > > > On 26/08/2024 20:42, Marco Casaroli wrote: > > Hello, > > > > I got my hands on some Raspberry Pi Pico 2 boards and I can finally run > > NuttX on them. > > > > It took some work, since the M33 core is a bit different than the M0 on > the > > old RP2040. > > > > It is working now (nsh and usbnsh configs at least) and even ostest is > > passing. > > > > For my initial PoC, I just edited many files in the rp2040 port but I > will > > create a new rp23xx port and I have some questions on how to organize the > > files: > > > > 1 Where should I put the arch files? Should I put them in > > arch/arm/src/rp23xx or should they be in a different path that could be > > reused by the RISC-V and ARM boards? Should we make another arch subdir > > like arch/multi? Or just have rp23xx in both risc-v and arm directories? > If > > so, then what about the files that are the same and could be reused. > Where > > to put them? Should I care to reuse these files or I can just copy them > > over when we make the risc-v port? > > > > 2. How should I differentiate the boards? should I call > > raspberry-pi-pico2-arm and raspberry-pi-pico2-riscv? > > > > 3. Some of the files could be shared / reused by rp2040 (ARM Cortex M0) > and > > rp23xx (riscv and ARM Cortex M33), how should I proceed to reuse these > > files and have them in a common directory. What directory would be best? > > > > I plan on pushing a PR with the modifications later this week. > > > > Thank you! > > >
