Resolved! After "devtool modify ... ", I can not found my kernel device tree in workspace.
Hi ~I've designed custom board of STM32MP157C. 1. I created my own device tree using CubeMX refer to the below article. https://wiki.st.com/stm32mpu/wiki/How_to_create_your_board_device_tree2. I also created own machine refer to the below article. ...