meta-bsp-imx8mm/Documentation/linux_kernel_build.md

Building Linux Kernel for CompuLab's i.MX8M Mini products

Supported machines:

• iot-gate-imx8

Define a MACHINE environment variable for the target product:

Machine	Command Line
iot-gate-imx8	export MACHINE=iot-gate-imx8

Define the following environment variables:

Description	Command Line
NXP release name	export NXP_BRANCH=lf-5.15.y
NXP release name	export NXP_RELEASE=lf-5.15.32-2.0.0
CompuLab branch name	export CPL_BRANCH=rel_imx_5.15.32-2.0.0-stable

Prerequisites

It is up to developer to setup arm64 build environment:

• Download the GNU tool chain
• Create a folder to organize the files:

mkdir imx8mm
cd imx8mm

• Download CompuLab BSP

git clone -b ${CPL_BRANCH} https://github.com/compulab-yokneam/meta-bsp-imx8mm.git
export PATCHES=$(pwd)/meta-bsp-imx8mm/recipes-kernel/linux/compulab/imx8mm

CompuLab Linux Kernel setup

git clone -b ${NXP_BRANCH} --single-branch https://github.com/nxp-imx/linux-imx.git
git -C linux-imx checkout ${NXP_RELEASE} -b linux-compulab 
git -C linux-imx am ${PATCHES}/*.patch

Compile the Kernel

make -C linux-imx cl-imx8m-mini_defconfig ${MACHINE}.config
make -C linux-imx