52 lines
1.9 KiB
Nix
52 lines
1.9 KiB
Nix
# To build, use:
|
|
# nix-build nixos -I nixos-config=nixos/modules/installer/sd-card/sd-image-armv7l-multiplatform.nix -A config.system.build.sdImage
|
|
{ config, lib, pkgs, ... }:
|
|
|
|
{
|
|
imports = [
|
|
../../profiles/base.nix
|
|
./sd-image.nix
|
|
];
|
|
|
|
boot.loader.grub.enable = false;
|
|
boot.loader.generic-extlinux-compatible.enable = true;
|
|
|
|
boot.consoleLogLevel = lib.mkDefault 7;
|
|
boot.kernelPackages = pkgs.linuxPackages_latest;
|
|
# The serial ports listed here are:
|
|
# - ttyS0: for Tegra (Jetson TK1)
|
|
# - ttymxc0: for i.MX6 (Wandboard)
|
|
# - ttyAMA0: for Allwinner (pcDuino3 Nano) and QEMU's -machine virt
|
|
# - ttyO0: for OMAP (BeagleBone Black)
|
|
# - ttySAC2: for Exynos (ODROID-XU3)
|
|
boot.kernelParams = ["console=ttyS0,115200n8" "console=ttymxc0,115200n8" "console=ttyAMA0,115200n8" "console=ttyO0,115200n8" "console=ttySAC2,115200n8" "console=tty0"];
|
|
|
|
sdImage = {
|
|
populateFirmwareCommands = let
|
|
configTxt = pkgs.writeText "config.txt" ''
|
|
# 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
|
|
|
|
[pi2]
|
|
kernel=u-boot-rpi2.bin
|
|
|
|
[pi3]
|
|
kernel=u-boot-rpi3.bin
|
|
|
|
# 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
|
|
'';
|
|
in ''
|
|
(cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
|
|
cp ${pkgs.ubootRaspberryPi2}/u-boot.bin firmware/u-boot-rpi2.bin
|
|
cp ${pkgs.ubootRaspberryPi3_32bit}/u-boot.bin firmware/u-boot-rpi3.bin
|
|
cp ${configTxt} firmware/config.txt
|
|
'';
|
|
populateRootCommands = ''
|
|
mkdir -p ./files/boot
|
|
${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
|
|
'';
|
|
};
|
|
}
|