FreeRTOS ports have been upstreamed

[lurch]

In section 2.3.7 of https://datasheets.raspberrypi.com/pico/raspberry-pi-pico-c-sdk.pdf there's a NOTE which says:
"As of the time of press the latest FreeRTOS-Kernel change for SDK 2.0.0 and RP2350 have not been merged upstream; they can be found here instead."

However this is no longer true, the FreeRTOS ports have now been upstreamed - see raspberrypi/pico-sdk#1453 (comment)

[jondurrant]

Thanks Andrew.

RP2350 support is not included in the current head of FreeRTOS Kernel or the current release which V11.1.0 and predates RP2350 release. So I am assuming this Repo is still current and supported. No mention of it being deprecated in the README that I spotted.

I'm confused now....

[lurch]

Copy'n'pasting a comment from the issue that I linked to earlier (which in hindsight I should have done earlier)...

For the benefit of anyone else reading this issue: the FreeRTOS ports have now been upstreamed to https://github.com/FreeRTOS/FreeRTOS-Kernel/tree/main/portable/ThirdParty/GCC/RP2040 and https://github.com/FreeRTOS/FreeRTOS-Kernel-Community-Supported-Ports/tree/main/GCC/RP2350_ARM_NTZ and https://github.com/FreeRTOS/FreeRTOS-Kernel-Community-Supported-Ports/tree/main/GCC/RP2350_RISC-V

[jondurrant]

Thank you. I suggest the README is updated here with this info.

[kilograham]

You need to initialize submodules in FreeRTOS (upstream) for RP2350 support, as FreeRTOS no longer wants community/partner ports in the main repo.

The newest FreeRTOS_Kernel_import.cmake which you can find in pico-examples or in fact now (as of yesterday FreeRTOS/FreeRTOS-Kernel#1243) in both FreeRTOS-Kernel RP2040 or in the submodule RP2350 ports, looks in both possible locations (and thus works for both deprecated RPi repo, and the upstream repo)

We have a little new documentation going into next version of the SDK book, and will also PR some README improvements to upstream FreeRTOS-Kernel

[jondurrant]

Just to be clear right now if you use https://github.com/FreeRTOS/FreeRTOS-Kernel/ and the latest release version (not head of repo which would in my view be bad practice) which is V11.1.0 the Community-Supported-Ports/GCC is a previous version to that including RP2350 support. So my perception reading this is that RP2350 is dropped as a viable FreeRTOS target until the next release.

Of course, we could potentially use an out-of-line Community-Supported-Ports repo version in a seperate folder outside of the FreeRTOS-Kernel hierarchy. This needs a rewrite of some of the make files though as I see no way to set FREERTOS_KERNEL_RP2040_RELATIVE_PATH manually. Unless I am missing something.

[kilograham]

ah, i didn't realize that - i have always used the tip of FreeRTOS!