router: patch dtbsize in liminix

machines/router/default.nix

@@ -2,4 +2,14 @@
 , nixpkgs ? (import ./npins).nixpkgs
 , liminix-config ? ./configuration.nix
 }:
-(import liminix { inherit nixpkgs liminix-config; device = import (liminix + "/devices/belkin-rt3200"); })
+let
+  patchedLiminix = pkgs.applyPatches {
+    name = "liminix-patched";
+    src = liminix;
+    patches = [
+      ./liminix-dtbsize.patch
+    ];
+  };
+  pkgs = import nixpkgs {};
+in
+(import patchedLiminix { inherit nixpkgs liminix-config; device = import (patchedLiminix + "/devices/belkin-rt3200"); })

machines/router/liminix-dtbsize.patch

@@ -0,0 +1,23 @@
+diff --git a/modules/outputs/tftpboot.nix b/modules/outputs/tftpboot.nix
+index ad6ed63..9773042 100644
+--- a/modules/outputs/tftpboot.nix
++++ b/modules/outputs/tftpboot.nix
+@@ -73,8 +73,6 @@ in {
+             rootfsStart=${toString cfg.loadAddress}
+             rootfsSize=$(binsize64k ${o.rootfs} )
+             dtbStart=$(($rootfsStart + $rootfsSize))
+-            dtbSize=$(binsize ${o.dtb} )
+-            imageStart=$(($dtbStart + $dtbSize))
+             imageSize=$(binsize ${image})
+ 
+             ln -s ${o.manifest} manifest
+@@ -102,6 +100,9 @@ in {
+             fdtput -p -t s dtb /reserved-memory/$node compatible phram
+             fdtput -p -t lx dtb /reserved-memory/$node reg $ac_prefix $(hex $rootfsStart) $sz_prefix $(hex $rootfsSize)
+ 
++            dtbSize=$(binsize ./dtb )
++            imageStart=$(($dtbStart + $dtbSize))
++
+             cmd="liminix ${cmdline} mtdparts=phram0:''${rootfsSize}(rootfs) phram.phram=phram0,''${rootfsStart},''${rootfsSize},${toString config.hardware.flash.eraseBlockSize} root=/dev/mtdblock0";
+             fdtput -t s dtb /chosen bootargs "$cmd"
+