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:

System Workbench for STM32

Slowing DMA rate for SPI 2 transfers

I noticed that when HCLK on my 32F406VG Discovery board is reduced to 84 MHz in MX the SPI 2 link to the LCD ILI9341 works.
At 168 MHz it fails and the SPI prescaler doesn’t fix the issue.
There is no separate DMA click divider, so I’m forced to slow the CPU down, tried reducing APB clocks by no change. :/
Any advice please? I’m probably missing something...

Was missing enabling FIFO on DMA. Check box was out of sight and not sure why its not default, so at higher speeds does the data get out of order?...