From 5220ab42395ff1db8205c3c4cca193dbec4d0c96 Mon Sep 17 00:00:00 2001
From: coolneng <akasroua@gmail.com>
Date: Fri, 11 Oct 2019 19:14:18 +0200
Subject: [PATCH] Enable ssh on boot and RP3 tweaks

---
 configuration.nix | 26 ++++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/configuration.nix b/configuration.nix
index 3827763..90757d1 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -4,15 +4,22 @@
   boot.loader.grub.enable = false;
   # Enables the generation of /boot/extlinux/extlinux.conf
   boot.loader.generic-extlinux-compatible.enable = true;
- 
+
   # !!! Otherwise (even if you have a Raspberry Pi 2 or 3), pick this:
   boot.kernelPackages = pkgs.linuxPackages_latest;
-  
-  # !!! Needed for the virtual console to work on the RPi 3, as the default of 16M doesn't seem to be enough.
-  # If X.org behaves weirdly (I only saw the cursor) then try increasing this to 256M.
-  # On a Raspberry Pi 4 with 4 GB, you should either disable this parameter or increase to at least 64M if you want the USB ports to work.
-  boot.kernelParams = ["cma=32M"];
-    
+
+  # A bunch of boot parameters needed for optimal runtime on RPi 3B
+  boot.kernelParams = ["cma=256M"];
+  boot.loader.raspberryPi.enable = true;
+  boot.loader.raspberryPi.version = 3;
+  boot.loader.raspberryPi.uboot.enable = true;
+  boot.loader.raspberryPi.firmwareConfig = ''
+    gpu_mem=256
+  '';
+  environment.systemPackages = with pkgs; [
+    raspberrypi-tools
+  ];
+
   # File systems configuration for using the installer's partition layout
   fileSystems = {
     "/boot" = {
@@ -24,7 +31,10 @@
       fsType = "ext4";
     };
   };
-    
+
   # !!! Adding a swap file is optional, but strongly recommended!
   swapDevices = [ { device = "/swapfile"; size = 1024; } ];
+
+  # Configure basic SSH access
+  services.openssh.enable = true;
 }