nixos-hardware/raspberry-pi/2/default.nix

{ lib, pkgs, ...}:

let
  hasConsoleExtraTTYs = lib.versionAtLeast (lib.versions.majorMinor lib.version) "21.03";
in
{
  boot = {
    consoleLogLevel = lib.mkDefault 7;
    kernelPackages = lib.mkDefault pkgs.linuxPackages_rpi2;
    kernelParams = [
      "dwc_otg.lpm_enable=0"
      "console=ttyAMA0,115200"
      "rootwait"
      "elevator=deadline"
    ];
    loader = {
      grub.enable = lib.mkDefault false;
      generationsDir.enable = lib.mkDefault false;
      raspberryPi = {
        enable = lib.mkDefault true;
        version = lib.mkDefault 2;
      };
    };
    extraTTYs = lib.mkIf (!hasConsoleExtraTTYs) [ "ttyAMA0" ];
  };

  console.extraTTYs = lib.mkIf hasConsoleExtraTTYs [ "ttyAMA0" ];

  nix.buildCores = 4;

  nixpkgs.config.platform = lib.systems.platforms.raspberrypi2;

  # cpufrequtils doesn't build on ARM
  powerManagement.enable = lib.mkDefault false;

  services.openssh.enable = lib.mkDefault true;
}