Remove CMSIS

[mmahadevan108]

Zephyr project uses the cmsis module, no need for CMSIS inside mcux-sdk

[mmahadevan108]

cc @manuargue @JiafeiPan @dbaluta @iuliana-prodan

[JiafeiPan]

I don't think we can remove nxp_hal's CMSIS, as there are some Cortex-A Core ARM64 supoort in it, currently ARM64 is not supported in Zephyr's CMSIS module, so NXP hal's CMSIS can't be replaced by Zephyr's CMSIS module.

[dbaluta]

I don't think we can remove nxp_hal's CMSIS, as there are some Cortex-A Core ARM64 supoort in it, currently ARM64 is not supported in Zephyr's CMSIS module, so NXP hal's CMSIS can't be replaced by Zephyr's CMSIS module.

Then we should push Cortex-A ARM64 support into Zephyr CMSIS. Duplicating things all around is not really easy to maintain.

[LaurentiuM1234]

Gave this PR a shot and, as it is, it breaks all of the imx93-related builds from Zephyr. BTW, why keep the core_x.h includes from the device files if you removed them? Doesn't seem right. (e.g: in MIMX9352_ca55.h you still include core_ca55.h which doesn't exist anymore?)

[mmahadevan108]

MIMX9

I think this is related to the work added by @JiafeiPan in the CMSIS folder. I am working with him on the best way to include this file in the Zephyr project.

[JiafeiPan]

I will upstream AARCH64 patches to CMSIS community, before we will integrate them into Zephyr's CMSIS, please don't remove hal_nxp's CMSIS, thanks.

[dleach02]

I will upstream AARCH64 patches to CMSIS community, before we will integrate them into Zephyr's CMSIS, please don't remove hal_nxp's CMSIS, thanks.

@JiafeiPan what is the status of this?

[JiafeiPan]

I will upstream AARCH64 patches to CMSIS community, before we will integrate them into Zephyr's CMSIS, please don't remove hal_nxp's CMSIS, thanks.

@JiafeiPan what is the status of this?

Hi, @dleach02 , I created a PR target for community, but as CMSIS latest software architecture is changed, so it will need so much effort to adapt to latest CMSIS code base, I don't think it can be merged in a short time.