Overview

This is the Linux BSP (Board Support Package) and the development environment for the STM32MP1 System-On-Module (SOM) and Starter Kit, release 4.0.0.

The BSP provides a software development environment for evaluation and development of Linux (uClinux) on the Cortex-A7 processor core of the STM32MP1 microcontroller using the Emcraft STM32MP1 SOM Starter Kit as a hardware platform.

Supported Features

The following list provides a summary of the features and capabilities of this release of the STM32MP1 BSP:

• Linux:
  • Kernel v.6.1.28;
  • Serial Linux console;
  • Ethernet device driver and Linux TCP/IP networking (ping, NFS, Telnet, FTP, NTPD, etc);
  • eMMC/SD device driver;
  • USB host/gadget device driver;
  • LCD device driver;
  • Touchscreen device driver;
  • Clock driver;
  • pinctrl driver;
  • busybox v1.36.0;
  • POSIX pthreads;
  • Hardened exception handling; an exception triggered by a process affects only the offending process.
• U-Boot firmware:
  • U-Boot v 2022.10;
  • Serial console command interface with various setup, test and maintenance commands;
  • Environment variables allowing customisation of a unit;
  • Sophisticated OS auto-boot sequence;
  • Partitioning and management of external Flash;
  • Initial installation of Linux image to external Flash.
• Development environment:
  • Linux-hosted cross-development environment;
  • Yocto v4.2.1 distribution.

New and Changed Features

This section lists new and changed features of this release:

1. Update Emcraft BSP to ST BSP 5.0.0.
   ID: RM 6651.

Known Problems and Limitations

This section lists known problems and limitations of this release:

1. Managing U-Boot environment from Linux is not supported.
2. Some SD cards (mostly 32GB and higher capacity) are not detected or properly initialized by the system.
   ID: RM 6831.
   Workaround: 8GB SD cards from Kingstone, Transcend, Bestbuy are known to work reliably and can be used as a temporary work-around until a more generic solution is developed.

Further Reading

• Hardware Materials:
  Refer to the following page for various documentation and hardware files describing the STM32MP1 SOM and Starter Kit: https://emcraft.com/products/1062#hardware
• Documentation Items:
  Refer to the following page for various documentation items describing use of the STM32MP1 SOM and Starter Kit: https://emcraft.com/products/1062#docs.

Support

Customers of the Emcraft i.MX 8M Starter Kit may contact Emcraft at This e-mail address is being protected from spambots. You need JavaScript enabled to view it for support.