Is STM32MP157CAAx support MS-DOS partition type ? or it will support only GPT type ?

[KnarfB]

The STM SW Distribution needs GPT because it has >4 partitions on SD card.

Form https://wiki.st.com/stm32mpu/wiki/STM32MP15_ROM_code_overview it seems that the ROM boot loader does not need GPT though I haven't tries that.