Release Notes 4.0.1

Owned by Natalia Sofronova
Last updated: Mar 04, 2024
2 min read

Overview

This is the Linux BSP (Board Support Package) and the development environment for the STM32MP1 System-On-Module (SOM) and Starter Kit, release 4.0.1.

The BSP provides a software development environment for evaluation and development of Linux (uClinux) on the Cortex-A7 processor core of the STM32MP1 microcontroller (the 650MHz STM32MP157A and 800MHz STM32MP157D variants) 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. Add support for the 800MHz STM32MP1-SOM based on STM32MP157D processor.
    ID: STM32MP1-1.

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 a2f-linux-support@emcraft.com for support.