mcore-demos: Upgrade to 6.6.52_2.2.0

[zelan-nxp]

imx95 mocre: 2.16.001 -> 24.12.00
Install elf binary to /usr/lib/firmware/

[otavio]

The changes look good, but please improve the commit log.

[otavio]

Please rebase this pull request because I made the change to remove the checksum across all the files to a single commit. So you will need also to remove this from this and other pull requests.

[thochstein]

Changes are fine, but it does seem odd that the 1.0.1 recipe doesn't use the .inc file.

[zelan-nxp]

Changes are fine, but it does seem odd that the 1.0.1 recipe doesn't use the .inc file.
Good catch. imx7d m4 demos binary name is imx7d-sabresd-m4-freertos-1.0.1.bin, no elf in package, Which special case than others. I update 1.0.1 recipe to use inc file and overwrite SRC_URI and let don't do install task.

[otavio]

Have you tried that? Because this change seems completely wrong.

Also, there is no package being generated, so it is just not generating the package to allow it to be deployed.

[zelan-nxp]

Sorry, The S directory was typo to .bin Updated.
Yes, imx7d mcore package no elf，So no need install them to /lib/firmware

[otavio]

Why not? How would I load the firmware during the runtime of the system?

[zelan-nxp]

These firmware was defined WKS_FILE_DEPENDS, they are installed in /run/media/boot-mmcblk1p1/mcore-demos when bootup. Although imx7d mcore no elf package, the bin package also generated and put in DEPLOYDIR.

[otavio]

I believe it is wrong. We should allow it to be installed as the user may want to load it manually.

[zelan-nxp]

@zelan-nxp could you, please, double check what were the files provided by the previous version of this package? Also, is there a list of which SOC should use which mcore-demos version?

Yes, imx7d mcore keep 1.0.0 version for a long time, the previous release we also install them like this ( written in boot partition). Other SOC mcore version you can check ([https://github.com/Freescale/meta-freescale/blob/master/recipes-fsl/mcore-demos/README])

[zelan-nxp]

I'm not sure how it works. Most of the archives install a .elf to the rootfs and a .bin to the .wic. For this recipe, there is no .elf. Should the .bin go in the rootfs? For all SOCs?

Mcore .elf is only used for developer debug, Generally, .elf shouldn't be install into rootfs for all SOC ,but developer require to debug their demo packages so we install them in the later release. Mcore pakcage is some feature(like audio) simple validation, they should write in correct core address, I think its's non-sense to install .bin package into standalone rootfs.

[thochstein]

Need to clarify here, this is not a request to install the firmware to the rootfs, it is a request to install the firmware to the main package. It's up to the user whether to install the main package to the rootfs. (We install the main package to our rootfs because I guess we want to provide the .elf in the rootfs: nxp-imx/meta-imx@5c887ec.)

This seems a reasonable request with no downside, and in fact one of our own did implement a userspace utility for loading the firmware: https://github.com/nxp-imx/imx-m4fwloader.

[zelan-nxp]

I agree. Install main package is reasonable even though no .elf supply. I will pull it in layer.conf

[thochstein]

Thanks, @zelan-nxp, for adding it for 7d, but it seems to me that this is a general feature request, and the firmware should be installed for the other SOCs as well.

Please confirm, @otavio.