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

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I/O Registers

I encountered the same problem when working on a “bare metal” STM32F072 project.

Getting the registers to show up turned out to be nothing more difficult than clicking the refresh button in the I/O register window. This button is located in the upper right corner, with an icon consisting of two yellow circular arrows.