Connecting cubeMX generated dts file with yocto

[WLeun.3]

Hi everyone,

I am using stm32mp157f-dk2 with openSTLinux-5.4-dunfell-eglf distribution.

I would like to configure my device tree using cubeMX.

The generated dts file seems OK to me. However, how can I tell yocto to use my newly generated device tree?

The instruction on https://wiki.st.com/stm32mpu/wiki/How_to_create_your_own_machine

didn't mention anything about this.

I have tried to modify the meta-st-stm32mp-addons/classes/cubemx-stm32mp.bbclass but it doesn't work.

It seems to me that the default meta-st-stm32mp-addons/conf/machine/stm32mp1-mx.conf is not used.

​Regards,

Leung

[WLeun.3]

Hi @Kevin HUBER​ ,

After changing the stm32mp15-m4-srm.dtsi to stm32mp157-m4-srm.dtsi in

mx/qt/CA7/DeviceTree/qt/kernel/stm32mp157f-qt-mx.dts
mx/qt/CA7/DeviceTree/qt/u-boot/stm32mp157f-qt-mx.dts

I am able to compile the image successfully.

However, when I booting up the device, I received

ERROR: Failed to allocate 0x11e99 bytes below 0xd0000000.

After checking, It found that the cubeMX generate the dts assuming that I am using openstlinux5.10.

How should I configure the cubeMX so that it generate 5.04 version dts?

It seems that everything is hardcoded.

Regards,

Leung

[Kevin HUBER · Accepted solution]

Hello @WLeun.3​ ,

You have to use the version of CubeMX delivered with your OSTL (5.4) version which is the STM32CubeMX6.1.

Wiki: https://wiki.st.com/stm32mpu-ecosystem-v2/wiki/STM32MP15_ecosystem_release_note_-_v2.1.0#STM32CubeMX

STM32CubeMX v6.1 -> This one generates Device tree compliance with openstlinux-5.4-dunfell-mp1-20-11-12 tag

 

To my knowledge there is no other way to use an old version of OpenSTLinux.

Regards,

Kevin