initial commit

hardware/raspberrypi4.nix

@@ -0,0 +1,26 @@
+{ config, pkgs, lib, ... }:
+{
+  # Boot
+  boot.loader.grub.enable = false;
+  boot.loader.raspberryPi.enable = true;
+  boot.loader.raspberryPi.version = 4;
+  boot.loader.raspberryPi.firmwareConfig = "
+    # Disable the ACT LED.
+    dtparam=act_led_trigger=none
+    dtparam=act_led_activelow=off
+    # Disable the PWR LED.
+    dtparam=pwr_led_trigger=none
+    dtparam=pwr_led_activelow=off
+    
+    # Disable SD-Card pools
+    dtparam=sd_pool_once=on";
+
+  # Kernel configuration
+  boot.kernelPackages = pkgs.linuxPackages_rpi4;
+  boot.kernelParams = [ "cma=64M" "console=tty0" ];
+
+  # Enable additional firmware (such as Wi-Fi drivers).
+  hardware.enableRedistributableFirmware = true;
+
+  #swapDevices = [{ device = "/swapfile"; size = 1024; }];
+}

hardware/t14.nix

@@ -0,0 +1,20 @@
+{ config, lib, ... }:
+{
+  boot = {
+    # acpi_call makes tlp work for newer thinkpads
+    kernelModules = [ "acpi_call" ];
+    extraModulePackages = with config.boot.kernelPackages; [ acpi_call ];
+
+    # Force use of the thinkpad_acpi driver for backlight control.
+    # This allows the backlight save/load systemd service to work.
+    kernelParams = [ "acpi_backlight=native" ];
+
+    # video driver
+    initrd.kernelModules = [ "i915" ];
+  };
+
+  services.fstrim.enable = lib.mkDefault true;
+
+  # Special power management settings for ThinkPads
+  services.tlp.enable = true;
+}