nixos/galvatron/apple-silicon-support/modules/boot-m1n1/default.nix

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2024-02-28 13:28:34 -09:00
{ config, pkgs, lib, ... }:
let
pkgs' = config.hardware.asahi.pkgs;
bootM1n1 = pkgs'.m1n1.override {
isRelease = true;
withTools = false;
customLogo = config.boot.m1n1CustomLogo;
};
bootUBoot = pkgs'.uboot-asahi.override {
m1n1 = bootM1n1;
};
bootFiles = {
"m1n1/boot.bin" = pkgs.runCommand "boot.bin" {} ''
cat ${bootM1n1}/build/m1n1.bin > $out
cat ${config.boot.kernelPackages.kernel}/dtbs/apple/*.dtb >> $out
cat ${bootUBoot}/u-boot-nodtb.bin.gz >> $out
if [ -n "${config.boot.m1n1ExtraOptions}" ]; then
echo '${config.boot.m1n1ExtraOptions}' >> $out
fi
'';
};
in {
config = {
# install m1n1 with the boot loader
boot.loader.grub.extraFiles = bootFiles;
boot.loader.systemd-boot.extraFiles = bootFiles;
# ensure the installer has m1n1 in the image
system.extraDependencies = lib.mkForce [ bootM1n1 bootUBoot ];
system.build.m1n1 = bootFiles."m1n1/boot.bin";
};
options.boot = {
m1n1ExtraOptions = lib.mkOption {
type = lib.types.str;
default = "";
description = ''
Append extra options to the m1n1 boot binary. Might be useful for fixing
display problems on Mac minis.
https://github.com/AsahiLinux/m1n1/issues/159
'';
};
m1n1CustomLogo = lib.mkOption {
type = lib.types.nullOr lib.types.path;
default = null;
description = ''
Custom logo to build into m1n1. The path must point to a 256x256 PNG.
'';
};
};
}