This guide outlines the steps to compile the Linux kernel source code for DEBIX Model A, Model B, and DEBIX SOM A I/O Board.
First, install the necessary build tools and libraries on your system. Open a terminal and run the following command:
sudo apt install git bc bison flex libssl-dev make libc6-dev libncurses5-dev
2.Install the cross-compiler:
sudo mkdir /opt/toolchain
cd /opt/toolchain
sudo wget https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu-a/9.2-2019.12/binrel/gcc-arm-9.2-2019.12-x86_64-aarch64-none-linux-gnu.tar.xz
tar xpf gcc-arm-9.2-2019.12-x86_64-aarch64-none-linux-gnu.tar.xz
3.Export the cross-compilation environment variables:
export CROSS_COMPILE=/opt/toolchain/gcc-arm-9.2-2019.12-x86_64-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-export ARCH=arm64
4.Download the source code:
git clone --depth=1 --branch <branch> https://github.com/debix-tech/linux
has two branches: debix and SOM_A_IO_BOARD.
debix branch supports DEBIX Model A and DEBIX Model B:
Command: git clone --depth=1 --branch debix https://github.com/debix-tech/linux
SOM_A_IO_BOARD branch supports DEBIX SOM A I/O Board
Command: git clone --depth=1 --branch SOM_A_IO_BOARD https://github.com/debix-tech/linux
5.To generate the kernel default configuration file:
cd linux-debix
make imx_v8_defconfig
6.Compile the kernel source code:
make -j4
7.Compile kernel modules
make modules
8.Install the kernel module to the out directory
make INSTALL_MOD_STRIP=1 modules_install INSTALL_MOD_PATH=out
Check if the kernel modules you need to compile are already installed in the out folder.
cd linux-debix/out/lib/modules/5.10.72
9.Location of image files and device tree files
linux-debix/arch/arm64/boot/image
linux-debix/arch/arm64/boot/dts/freescale/imx8mp-evk.dtb
linux-debix/arch/arm64/boot/dts/freescale/imx8mp-debix-lora-board.dtb
10.Update the module kernel to debix
Run the command on DEBIX:
sudo scp @<Server Ip>:/linux-debix/out/lib/modules/5.10.72 /lib/modules
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