Procedure to Modify Schematic and Reconfigure Linux Kernel Image for STM32MP135

[DEENADHAYALAN]

Dear ST Community,

I am currently modifying an existing schematic to meet my specific requirements for the STM32MP135 Linux board. In line with these hardware changes, I would like to reconfigure and modify the Linux kernel image file accordingly. I need guidance on how to adjust the pin configurations and generate a new kernel image file.

Could you please provide a step-by-step procedure for the following:

1. Schematic Modifications:

   • How to align the software configuration with hardware changes made to the schematic (e.g., GPIO, peripherals, or pin functions).

2. Reconfiguration of Pin Settings in Kernel:

   • How to locate and modify the required device tree files or pin control configurations to reflect changes in the schematic.
   • Steps to adjust GPIO pin settings and peripherals in the kernel.

3. Kernel Compilation:

   • Commands or toolchains required to recompile the kernel after modifications.
   • Guidance on rebuilding the Device Tree Blob (DTB) and compiling the kernel image.

4. Deploying the New Kernel Image:

   • How to flash the newly compiled kernel image onto the STM32MP135 board.

Your insights and any related documentation links would be greatly appreciated.

Best regards,
DEENADHAYALAN E,
R&D Executive Engineer at EM-TECH.

[Olivier GALLIEN · Accepted solution]

Hi @DEENADHAYALAN 

Here is some pointers : 

Wiki stm32mpu

Knowledge Article in Community : STM32 MPUs - STMicroelectronics Community

Hope it help 

Olivier