109 lines
3.0 KiB
Nix
109 lines
3.0 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.boot.loader.raspberryPi;
|
|
|
|
inherit (pkgs.stdenv.hostPlatform) platform;
|
|
|
|
builderUboot = import ./uboot-builder.nix { inherit pkgs configTxt; inherit (cfg) version; };
|
|
builderGeneric = import ./raspberrypi-builder.nix { inherit pkgs configTxt; };
|
|
|
|
builder =
|
|
if cfg.uboot.enable then
|
|
"${builderUboot} -g ${toString cfg.uboot.configurationLimit} -t ${timeoutStr} -c"
|
|
else
|
|
"${builderGeneric} -c";
|
|
|
|
blCfg = config.boot.loader;
|
|
timeoutStr = if blCfg.timeout == null then "-1" else toString blCfg.timeout;
|
|
|
|
isAarch64 = pkgs.stdenv.hostPlatform.isAarch64;
|
|
optional = pkgs.stdenv.lib.optionalString;
|
|
|
|
configTxt =
|
|
pkgs.writeText "config.txt" (''
|
|
# U-Boot used to need this to work, regardless of whether UART is actually used or not.
|
|
# TODO: check when/if this can be removed.
|
|
enable_uart=1
|
|
|
|
# Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
|
|
# when attempting to show low-voltage or overtemperature warnings.
|
|
avoid_warnings=1
|
|
'' + optional isAarch64 ''
|
|
# Boot in 64-bit mode.
|
|
arm_64bit=1
|
|
'' + (if cfg.uboot.enable then ''
|
|
kernel=u-boot-rpi.bin
|
|
'' else ''
|
|
kernel=kernel.img
|
|
initramfs initrd followkernel
|
|
'') + optional (cfg.firmwareConfig != null) cfg.firmwareConfig);
|
|
|
|
in
|
|
|
|
{
|
|
options = {
|
|
|
|
boot.loader.raspberryPi = {
|
|
enable = mkOption {
|
|
default = false;
|
|
type = types.bool;
|
|
description = ''
|
|
Whether to create files with the system generations in
|
|
<literal>/boot</literal>.
|
|
<literal>/boot/old</literal> will hold files from old generations.
|
|
'';
|
|
};
|
|
|
|
version = mkOption {
|
|
default = 2;
|
|
type = types.enum [ 0 1 2 3 4 ];
|
|
description = ''
|
|
'';
|
|
};
|
|
|
|
uboot = {
|
|
enable = mkOption {
|
|
default = false;
|
|
type = types.bool;
|
|
description = ''
|
|
Enable using uboot as bootmanager for the raspberry pi.
|
|
'';
|
|
};
|
|
|
|
configurationLimit = mkOption {
|
|
default = 20;
|
|
example = 10;
|
|
type = types.int;
|
|
description = ''
|
|
Maximum number of configurations in the boot menu.
|
|
'';
|
|
};
|
|
|
|
};
|
|
|
|
firmwareConfig = mkOption {
|
|
default = null;
|
|
type = types.nullOr types.lines;
|
|
description = ''
|
|
Extra options that will be appended to <literal>/boot/config.txt</literal> file.
|
|
For possible values, see: https://www.raspberrypi.org/documentation/configuration/config-txt/
|
|
'';
|
|
};
|
|
};
|
|
};
|
|
|
|
config = mkIf cfg.enable {
|
|
assertions = singleton {
|
|
assertion = !pkgs.stdenv.hostPlatform.isAarch64 || cfg.version >= 3;
|
|
message = "Only Raspberry Pi >= 3 supports aarch64.";
|
|
};
|
|
|
|
system.build.installBootLoader = builder;
|
|
system.boot.loader.id = "raspberrypi";
|
|
system.boot.loader.kernelFile = platform.kernelTarget;
|
|
};
|
|
}
|