Real-time-edge v2.4 build for imx8mpevk support for rpmsg missing

[Z2025121]

Hi,

I have two isses with real-time-edge image from yocto build:

$ DISTRO=nxp-real-time-edge MACHINE=imx8mp-lpddr4-evk source real-time-edge-setup-env.sh -b build-imx-real-time-edge

$ bitbake nxp-image-real-time-edge

The RT-Edge images are built successfully according to steps described in the Real-time Edge Software User Guide (Rev.2.4, 16 Dec 2022).

Issues:

(1) $3.3.2.1 Execute "run  jh_mmcboot" at U-boot prompt. but "jh_mmcboot" is not defined.

what is the correct setenv string for "jh_mmcboot"

(2) in the /samples folder rpmsg related samples are missing.It is not build automatically. But by default it should build (If I understand correctly).

Does this sample work for imx8mpevk ?

---------------------

If I use "bitbake rpmsg-lite-str-echo-rtos" to build this component manually. do_complie will fail because of directory path mismatch:

"can't cd to /home/dezhangj/NXP/Yocto_RT-Edge24/build-imx-real-time-edge/tmp/work/armv8a-poky-linux/rpmsg-lite-str-echo-rtos/2.12.0-r0/git/examples/evkmimx8mp/multicore_examples/rpmsg_lite_str_echo_rtos/core_ca53/armgcc_aarch64"

The actual makefile directory should be ".....tmp/work/armv8a-poky-linux/rpmsg-lite-str-echo-rtos/2.12.0-r0/git/examples/evkmimx8mp/multicore_examples/rpmsg_lite_str_echo_rtos/armgcc"

Any suggestion to fix the issue? Is this a configuration issue?

Thanks for your help

Junshu

[Z2025121]

Hi Sanket,

Many thanks for the hint.

The cortex-M images for rpmsg are built now after I cleared everything and rebuild from setting up the repo.

Best regards,

Junshu

[Sanket_Parekh · Accepted solution]

Hi @Z2025121,

Thanks for the update. Good to know that.

Since the issue has been resolved, can I mark this case as close?

Thanks & Regards,
Sanket Parekh

[Z2025121]

Hi Sanket,

yes, please. Thanks for your help.

BR,

Junshu

[Z2025121]

Correction:

Issue 1 does not fit to the subject. It is move to a different thread.

Issue 2 remains.

[Sanket_Parekh]

Hi @Z2025121 

From the above error, it seems that either this directory doesn't exist or permission for the directory access is not given.

It seems to be building this application for the cortex-A53 core.

To run RTOS on M7 core, one needs to integrate meta-rtos-industrial

Please refer to Figure 19. Unified Yocto Structure for Heterogeneous AMP and 3.5.3 Yocto layer for Cortex-M core in Real-time Edge Software User Guide.

Thanks & Regards,

Sanket Parekh

[Z2025121]

Hi Sanket_Parekh,

Thanks for the answer.

The problem is: the files exist, but in a different directory (see my original question 2).The question is why the script looks for the files in a wrong place? This happens only when I try to build this specific components.

BR

Junshu

[Sanket_Parekh]

Hi @Z2025121 

I hope you are doing well.

Please try using evkmimx8mp as MACHINE to build specific components for cortex-M7 core.

Thanks & Regards,

Sanket Parekh