STM32MP1 support available in SW4STM32
||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 download a short video showcasing this on the ac6-tools website (registration required).
Several forums will allow to ask questions related to STM32 embedded system creation and prograing with System Workbench for STM32.
Before asking for help in the forums, you should look at the Wiki and FAQs, as your question may have been answered already.