fix: use P3767-0001 nvpmodel conf for Orin NX 8GB

note: nvpmodel.service is failing on 8GB variants of this board since it
has 2 less cores than the 16GB variant (supported already) and since the
nvpmodel configuration file was being recycled for all Orin NX variants.
So, `nvpmodel.service` would try to change settings for 8 CPUs when only
6 exist. cf.
  https://docs.nvidia.com/jetson/archives/r35.3.1/DeveloperGuide/index.html
for the mapping between Orin NX variant and Nvidia "P-number".

Author: johnrichardrinehart

modules/default.nix

@@ -53,7 +53,7 @@ in
         # You can add your own som or carrierBoard by merging the enum type
         # with additional possibilies in an external NixOS module. See:
         # "Extensible option types" in the NixOS manual
-        type = types.nullOr (types.enum [ "orin-agx" "orin-nx" "orin-nano" "xavier-agx" "xavier-nx" "xavier-nx-emmc" ]);
+        type = types.nullOr (types.enum [ "orin-agx" "orin-nx" "orin-nx-8G" "orin-nano" "xavier-agx" "xavier-nx" "xavier-nx-emmc" ]);
         description = "Jetson SoM (System-on-Module) to target. Can be null to target a generic jetson device, but some things may not work.";
       };
 

modules/devices.nix

@@ -1,6 +1,6 @@
 { pkgs, config, lib, ... }:
 
-# Configuration specific to particular SoM or carrier boardsl
+# Configuration specific to particular SoM or carrier boards
 let
   inherit (lib)
     mkDefault
@@ -12,6 +12,7 @@ let
   nvpModelConf = {
     orin-agx = "${pkgs.nvidia-jetpack.l4t-nvpmodel}/etc/nvpmodel/nvpmodel_p3701_0000.conf";
     orin-nx = "${pkgs.nvidia-jetpack.l4t-nvpmodel}/etc/nvpmodel/nvpmodel_p3767_0000.conf";
+    orin-nx-8G = "${pkgs.nvidia-jetpack.l4t-nvpmodel}/etc/nvpmodel/nvpmodel_p3767_0001.conf";
     orin-nano = "${pkgs.nvidia-jetpack.l4t-nvpmodel}/etc/nvpmodel/nvpmodel_p3767_0003.conf";
     xavier-agx = "${pkgs.nvidia-jetpack.l4t-nvpmodel}/etc/nvpmodel/nvpmodel_t194.conf";
     xavier-nx = "${pkgs.nvidia-jetpack.l4t-nvpmodel}/etc/nvpmodel/nvpmodel_t194_p3668.conf";