SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world.
And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download two short videos (registration required) highlighting:

System Workbench for STM32

Is there any working cfg for stm32L0 ???

I feel your pain. I had some hard time myself to get my stm32l152 discovery board running initially. Too many possible pitfalls.

Then I started with STM32Cube which has lots of sample projects.

Just simply download the STM32cubeL0.zip archive. You’ll find it on the STM web page.
This includes bunch of examples for the L0.
Just load one at a time in ac6/system workbench. Build it and try it.

good luck