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 (registration required) various documents highlighting:
Location : OpenSTM32 Community Site » Documentation » System Workbench for STM32 » User Guide » Creating a custom board Creating a custom board

Creating a custom board

If you have designed your own board based on a STM32 chip, System Workbench for STM32 offers you to create your custom board definition.

To create a new board, click on “Create a new custom board” on the new project wizard third screen instead of selecting an existing board. A new window is then displayed.

You can import new board from existing board definition (xml format) or create a new board.
While creating a project with a custom board, the definition file (*.xml) and the OpenOCD script (*.cfg) are generated into the project directory. Share these files to export the board into another workstation. The generated OpenOCD script might not be valid your target, please edit it to adapt it for your board.

From definition file

Select “Import from definition file” to import a new board.

Define custom board
  1. Select “Define new board” to create your new board.
  2. Enter the new board name (special characters and underscore are forbidden).
  3. Select the STM32 chip serie.
  4. Select the MCU used on the custom board.
  5. Select the debug device and interface.