Linux 5 kernel source code for "Caninos Labrador v3.0".
Experimental!
This repository contains the source code of Caninos Labrador's 64bits linux kernel. Boards newer than "Labrador Core v3.0" should work fine with this kernel.
Prior to compilation, make sure you have the following libraries and/or tools installed on your machine:
- GNU Binutils environment
- Native GCC compiler
- GCC cross-compiler targeting "gcc-aarch64-linux-gnu"
- Make build tool
- Git client
- Bison and Flex development libraries
- NCurses development libraries
- LibSSL development libraries
$ sudo apt-get update
$ sudo apt-get install build-essential binutils gcc-aarch64-linux-gnu make git
$ sudo apt-get install bison flex libncurses-dev libssl-dev
After installing these tools, clone this repository in your computer. Then, go to it's main directory and execute it's makefile.
$ git clone https://github.com/caninos-loucos/labrador-linux5-64.git
$ cd labrador-linux5-64 && make
If you want to do an incremental build, execute the following commands:
- To load "Labrador Core v3.0"'s configuration
make config
Note: this will overwrite all configurations already set up.
- To change which modules are compiled into your kernel image
make menuconfig
- To compile the device tree binary blob
make dtbs
- To compile your kernel image
make kernel
- To reset everything
make clean
After a successful build, the kernel should be avaliable at "output" folder. The modules are located at "output/lib/modules". Do the following:
- Copy the modules to the folder "/lib/modules" at your SDCARD/EMMC system's root.
$ sudo cp -r output/lib/modules $ROOTFS/lib/
- Copy the Image file to the "/boot/" folder at your SDCARD/EMMC system's root.
$ sudo cp output/Image $ROOTFS/boot/
- Copy the device tree files to "/boot/" folder at your SDCARD/EMMC system's root.
$ sudo cp output/v3psci.dtb $ROOTFS/boot/
Note: $ROOTFS must be replaced by the complete directory path of your target system's root mounting point.
- To update the bootloader in a SDCARD use:
$ sudo dd if=bootloader.bin of=/dev/$DEVNAME conv=notrunc seek=1 bs=512
Note: $DEVNAME is the name of the target device. It is not a partition name. You can use lsblk, to know it's name. The file "bootloader.bin" is located at the folder "boot" of this repository.
- To update the EMMC's bootloader from a live Linux system booted from SDCARD use:
$ sudo dd if=bootloader.bin of=/dev/mmcblk2 conv=notrunc seek=1 bs=512
- The bootloader uses the configuration file "config.json". A sample is located at the folder "boot" of this repository. It must be copied to the folder "/boot/" of your SDCARD/EMMC system's root. To copy this file to your system use:
$ sudo cp config.json $ROOTFS/boot/
Note: $ROOTFS must be replaced by the complete directory path of your target system's root mounting point.
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