F&S i.MX8ULP Yocto Release 2025.11 (fsimx8ulp-Y2025.11)

This is a main release for all F&S boards and modules based on the i.MX8ULP SoC, based on the NXP lf-6.6.52-2.2.1 release.

Supported Boards

• PicoCoreMX8ULP rev 1.10
• OSM-SF-MX8ULP rev 1.10

Please see the new revision of following file

FSiMX8ULP_FirstSteps_eng.pdf

for a description of how everything is installed and used. This doc sub-directory also contains other documentation, for example about the hardware of the boards and the starter kits.

Please note that Yocto releases use a 'Y' for the version number. The version counting is independent form other releases.

Content

The release consists of the following files and directories:

Highlights

Here are some highlights of this release.

1. New Linux Kernel 6.6.112

The F&S Kernel is now based on the linux-fslc kernel.

The fslc kernel has LTS updates for the NXP release versions, so security fixes can be applied more easily.

The Linux kernel is now based on 6.6.112

• EEVDF replaces the existing CFS code scheduler.
• ReiserFS Officially Declared "Obsolete"
• KSMBD Declared Stable
• CephFS Completes Multi-Year Effort Adding FSCRYPT Support.
• EXT4 Lands A Nice Performance Improvement
• Tmpfs Gains New Features
• NFS Enables NFSv4.2 READ_PLUS Option By Default
• Brings Fixes, Partially Recovers From Scrub Performance Regression
• Adding Randomized Kmalloc Caches (Linux Security)
• Various Security improvements (Linux Security)

• Various kernel graphics improvements

  ... Many other improvements.

  (https://www.phoronix.com/review/linux-66-features)

  Of course, there are also many changes for other CPU types (like x86) and other graphics cores (like AMD, Nvidia, Intel) but these are not of interest here.

2. New bootloader U-Boot 2024.04

The U-Boot is now based on 2024.04. Add support for Secure-Boot, A/B Update, OP-TEE to the U-Boot.

3. New Yocto version 5.0.13 Scarthgap

Updating poky to Version 5.0.13 Scarthgap. Updating other layers to their latest commits.

The meta-fus layer in now split into meta-fus-bsp and meta-fus-sdk. The meta-fus-bsp layer adds basic board support, while meta-fus-sdk adds additional features, which are note necessary to run the board.

The meta-fus layer is now based on meta-freescale and not meta-imx. meta-freescale offers better long time support and more stable releases, while meta-imx supports the newest features but is not as stable and suitable for production. The meta-imx layers are still downloaded for reference, but not included into the build. If you need features from them, please consider adding the changes to your own meta-layer.

4. New Docker based building system

The F&S releases now support Docker containers as default building machines. By using the Docker environment, the build process can be executed on any Linux host, as long as the Docker is installed. Starting FS_Development_Machine-Fedora-40_V0.2 Docker will be pre-installed and the development machines will not support support building the releases directly anymore.

If you do not want to use Docker, please check the Dockerfile for the dependencies. https://github.com/FSEmbedded/docker-fus/

1. Download manifest repository

   Shell-Script

   1. git clone -b fsimx8ulp-Y2025.11 https://github.com/FSEmbedded/releases-fus.git

   
   

2. Prepare Yocto-Build environment Run setup-yocto to prepare your Yocto-Build environment. The script will read the repo manifest.xml file and syncs all repositories that are needed for Yocto.

   Code

   1. cd releases-fus/
   2. ./setup-yocto <yocto-buildir>

3. Prepare Docker-Environment The ./setup-yocto script is capable of setting up a Docker environment in which the bitbake program can be executed for the Yocto system. This command will open a docker shell, where you can execute all yocto commands as usual.

   Code

   1. ./setup-yocto <yocto-buildir> --docker
   2. cd yocto-fus/

5. New Version naming for F&S Linux, U-Boot and meta-fus

Linux and U-Boot and meta-fus now get their own version number to be more transparent and flexible. The Version numbers reflect the Version of the original package, if needed the NXP version and the F&S Version. For example the linux version name is composed like this

[Version Orig. Kernel]-[Version IMX]-[Version FS]

linux-v6.6.101-2.2.1-fus1.0

This way it is easier to recognize the applied patch levels and the same package versions can be used in multiple releases.

The actual packages versions are marked as annotated tags in the git history. The Name of the overall release (like fsimx93-Y2025.08) is still set as a light tag.

Changelog

The following list shows the most noticeable changes in this release in more detail since our last release for this platform. For a detailed description please check the respective git histories.

u-boot-v2024.04-fus1.2

• Update to version v2024.04
• Add support for fsimx8ulp boards
• Add F&S update support
• Add F&S boot strategy support
• Add fsimage support
• Add OP-TEE Support
• Add A/B update support
• Add Secure-Boot support

linux-v6.6.112-2.2.1-fus1.2

• Update to version 6.6.112
• Add support for fsimx8ulp boards
• Add bluetooth support
• Add F&S displays support
• Add bdinfo support

meta-fus-yocto-5.0.13-fus1.2

• Split meta-fus in meta-fus-bsp and meta-fus-sdk
• Add fsimx8ulp support
• Update layer to yocto scarthgap
• Add dynamic layers for basler and qt6
• Clone fus specific gits from github again (Do not use the local gits anymore)
• Add additional test packages to the fus-image-sdt
• Use meta-freescale as base layer instead of meta-imx
• Add possibility to add Chromium and SPDX generation via the fus-setup-release script
• Add bcsend support to connect to the board via FSDeviceSpy
• Improve remote desktop support
• Update Kernel, Uboot, and ATF to the latest F&S versions

atf-v2.10-fus1.1

• Select CLKMUX for TPM6/TPM7
• Support various LPUART Devices for different Boards
• Support Suspend for DSL and PD/DPD

nboot-2025.11

• Add fsimx8ulp boards support
• Add F&S specific container layout
• firmware-upower-1.3.1
• firmware-ele-imx-2.0.2.1

linux-examples-fus-fs1

(no changes)

Documentation

• FSiMX8ULP_FirstSteps_eng.pdf
• LinuxOnFSBoards_eng.pdf

Please download the hardware documentation directly from our website. Then you always have the newest version.