STM32MP157 custom board, linux build tutorial

[jaehoon]

Is there a tutorial for newbie? I made my custom board by myself as hobby.

the board has switches to select boot 0 and boot 1, boot 2 is tied to ground through 10k resistor. so I could implement boot selector that switches between `00` flashing mode, `01` serial NOR, `10` NAND, `11` eMMC on SDMMC2. and I tested the MPU could run as DFU mode and I could see it in Cube Programmer tool.

but I can not get understood how can I flash linux to my board. 

exactly, I could build linux using yocto but, where should I put my DTS files that generated by Cube IDE?

I'm under WSL2 environment to build yocto. unfortunately, I'm not expert of linux kernel :(

[Olivier GALLIEN]

Hi @jaehoon ,

Doing such a project as hobby is really impressive! 

Main documentation point is our wiki : 

stm32mpu 

Seems you don't experiment with one ST evaluation board. It would really help. 

Be aware that Yocto build is not fully support on WSL2. We really recommand to use a Linux station. 

Before to flash it's mandatory to build binary suited to your hardware

You can consider these articles 

FAQ: STM32MP1 How to bring up STM32MP1 - STMicroelectronics Community

FAQ: STM32MPUs: How to create a device tree adapte... - STMicroelectronics Community 

How to compile the device tree with the Distribution Package - stm32mpu 

Hope it help 

Olivier