how to add stm32mp157A own UART drivers at boot level in uboot.

srikanth · ‎2021-07-11

I am using STM32MP1 Device in our costume board . In my application I need 3 UARTS out of three UARTS only one is initialized in UBOOT and its working fine , Now i want to initialize the remaining UARTS , Send and receiving the data from remaining UARTS. For this what is procedure to add new UART drivers(We are using the stlinux for the application development).

PatrickF · ‎2021-07-21

Hi,

Did you updated the uBoot Device Tree by adding the requested UARTs ?

See

https://wiki.st.com/stm32mpu/wiki/Serial_TTY_device_tree_configuration

https://wiki.st.com/stm32mpu/wiki/How_to_configure_U-Boot_for_your_board

https://wiki.st.com/stm32mpu/wiki/How_to_compile_the_device_tree_with_the_Developer_Package

Regards,

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