kernel source and uboot configuration for linux 6.1.31 for the orange pi zero 3.
- the nix expressions are probably pretty bad. they work, but i have no doubt they aren't idiomatic.
- this requires ifd.
└───packages
└───aarch64-linux
├───firmwareOrangePiZero3: package 'uwe5622-firmware-6.1.31-sun50iw9'
├───linuxOrangePiZero3: package 'linux-6.1.31-sun50iw9'
└───ubootOrangePiZero3: package 'uboot-orangepi_zero3_defconfig-2021.07-sunxi'
- kernel tree: https://github.com/orangepi-xunlong/linux-orangepi/commit/3495b5ee0594566c9fed930b96b1cae90600412e
- uboot tree: https://github.com/orangepi-xunlong/u-boot-orangepi/commit/6fe17fac388aad17490cf386578b7532975e567f
for your own orange pi zero 3: here's a snapshot of my own configuration, which should be a good starting point. some of the options are probably redundant, but i'd rather be safe than sorry.
{
imports = [
"${inputs.nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64.nix"
];
nixpkgs.hostPlatform = "aarch64-linux";
# dodge "module <x> not found" error for socs.
hardware.enableRedistributableFirmware = false;
nixpkgs.overlays = [
(final: super: {
makeModulesClosure = x:
super.makeModulesClosure (x // { allowMissing = true; });
})
];
# u-boot, no grub, no efi.
boot.loader.grub.enable = false;
boot.loader.generic-extlinux-compatible.enable = true;
boot.loader.efi.canTouchEfiVariables = false;
# slim supported filesystems.
boot.supportedFilesystems = pkgs.lib.mkForce ["vfat" "ext4"];
boot.initrd.supportedFilesystems = pkgs.lib.mkForce ["vfat" "ext4"];
# your shiny custom kernel.
boot.kernelPackages = pkgs.orangePiZero3; # however you get the package here is up to you - overlay or directly from the flake.
# opi needs the uboot image written to a specific part of the firmware.
sdImage.postBuildCommands = ''dd if=${inputs.opiz3-nix.packages.aarch64-linux.ubootOrangePiZero3}/u-boot-sunxi-with-spl.bin of=$img bs=8 seek=1024 conv=notrunc'';
# this gets burned straight onto an sd. no point in zstd.
sdImage.compressImage = false;
}then you can build the sd image with nix build .#<configuration name>.config.system.build.sdImage.
for the defconfig
use pkgs/linux/sun50iw9_defconfig. the vendor-provided one is short a bunch of things.
if you have a forgejo instance, or access to one, you can fork and submit patches. i personally recommend codeberg if you aren't hosting your own.
everything outside of src/ is agpl licensed except the defconfig.
pkgs/linux/sun50iw9_defconfig is the same license as the linux kernel.
directories in src/ contain their own licenses, as they are verbatim copies of the upstream sources.