74 lines
2.4 KiB
Nix
74 lines
2.4 KiB
Nix
{ config, lib, pkgs, ... }: {
|
|
nixpkgs.localSystem.system = "aarch64-linux";
|
|
imports = [
|
|
|
|
# Sd image settings
|
|
<nixpkgs/nixos/modules/installer/sd-card/sd-image.nix>
|
|
|
|
# Your configuration
|
|
./configuration.nix
|
|
];
|
|
|
|
boot = {
|
|
kernelPackages = pkgs.linuxPackages_rpi4;
|
|
loader.grub.enable = false;
|
|
loader.generic-extlinux-compatible.enable = true;
|
|
consoleLogLevel = lib.mkDefault 7;
|
|
|
|
# The serial ports listed here are:
|
|
# - ttyS0: for Tegra (Jetson TX1)
|
|
# - ttyAMA0: for QEMU's -machine virt
|
|
kernelParams =
|
|
[ "console=ttyS0,115200n8" "console=ttyAMA0,115200n8" "console=tty0" ];
|
|
|
|
initrd.availableKernelModules = [
|
|
# Allows early (earlier) modesetting for the Raspberry Pi
|
|
"vc4"
|
|
"bcm2835_dma"
|
|
"i2c_bcm2835"
|
|
# Allows early (earlier) modesetting for Allwinner SoCs
|
|
"sun4i_drm"
|
|
"sun8i_drm_hdmi"
|
|
"sun8i_mixer"
|
|
];
|
|
|
|
};
|
|
|
|
sdImage = {
|
|
populateFirmwareCommands = let
|
|
configTxt = pkgs.writeText "config.txt" ''
|
|
[pi4]
|
|
kernel=u-boot-rpi4.bin
|
|
enable_gic=1
|
|
armstub=armstub8-gic.bin
|
|
# Otherwise the resolution will be weird in most cases, compared to
|
|
# what the pi3 firmware does by default.
|
|
disable_overscan=1
|
|
[all]
|
|
# Boot in 64-bit mode.
|
|
arm_64bit=1
|
|
# U-Boot needs this to work, regardless of whether UART is actually used or not.
|
|
# Look in arch/arm/mach-bcm283x/Kconfig in the U-Boot tree to see if this is still
|
|
# a requirement in the future.
|
|
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
|
|
'';
|
|
in ''
|
|
(cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
|
|
# Add the config
|
|
cp ${configTxt} firmware/config.txt
|
|
# Add pi4 specific files
|
|
cp ${pkgs.ubootRaspberryPi4_64bit}/u-boot.bin firmware/u-boot-rpi4.bin
|
|
cp ${pkgs.raspberrypi-armstubs}/armstub8-gic.bin firmware/armstub8-gic.bin
|
|
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-4-b.dtb firmware/
|
|
'';
|
|
populateRootCommands = ''
|
|
mkdir -p ./files/boot
|
|
${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
|
|
'';
|
|
};
|
|
}
|
|
|