Linux‑LTS Kernel Builder with cqfd

This repository provides a reproducible kernel cross‑compilation environment for EmbeddedTS boards using cqfd. It supports building kernels using project-specific Docker containers.

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Quick Start

Install Dependencies

## Install Docker
## Debian/Ubuntu
#sudo apt-get update && sudo apt-get install docker.io -y

## Redhat
#sudo dnf install -y dnf-plugins-core
#sudo dnf config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
#sudo dnf install -y docker-ce docker-ce-cli containerd.io
#sudo systemctl enable --now docker

# Test with:
docker run hello-world

## Install CQFD
git clone https://github.com/savoirfairelinux/cqfd
cd cqfd
make install

Build a Kernel (e.g. tsimx6ul)

# Clone the linux kernel:
git clone git clone https://github.com/embeddedTS/linux-lts.git linux -b linux-6.6.y

# Clone the wilc3000 external module (used also on tsimx6/tsimx28 targets, not needed for others)
git clone -b linux4microchip-2024.04 https://github.com/embeddedTS/wilc3000-external-module/"

# Run the build script (host side)
./build_tsimx6ul.sh

This will:

• Automatically initialize the cqfd container on first run or when modified
• Launch the build inside the Debian container with the Debian armhf cross toolchain
• Call build-scripts/build-tar.sh with the correct defconfig and image type

The resulting tarball will appear in the linux/ directory.

Customize Kernel Config

To customize kernel options via menuconfig:

cqfd -b debianarmhf shell
make tsimx6ul_defconfig
make menuconfig
make savedefconfig
cp defconfig arch/arm/configs/tsimx6ul_defconfig

Save changes, then exit the container. Use the build_tsimx6ul.sh script again to generate the new image and tarball.

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Supported Targets

Script Name	CQFD Flavor	Kernel Source
build_tsa38x_minimal_tar.sh	debianarmhf	linux-lts
build_tsa38x_tar.sh	debianarmhf	linux-lts
build_tsimx28_minimal_tar.sh	debianarmel	linux-lts
build_tsimx28_tar.sh	debianarmel	linux-lts
build_tsimx6_minimal_tar.sh	debianarmhf	linux-lts
build_tsimx6_tar.sh	debianarmhf	linux-lts
build_tsimx6ul_minimal_tar.sh	debianarmhf	linux-lts
build_tsimx6ul_tar.sh	debianarmhf	linux-lts
build_tsimx93_tar.sh	debianarm64	prototype-linux-imx93

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References

• cqfd documentation
• linux-lts
• prototype-linux-imx93

Licensed under MIT