modules/zyxel-dual-image: init

This adds a simple boot blessing module, to be used, with the Zyxel NWA50AX.

There's a lot of elephant in the rooms: how do you upgrade kernel, etc.

Signed-off-by: Raito Bezarius <masterancpp@gmail.com>

devices/zyxel-nwa50ax/default.nix

@@ -94,6 +94,7 @@
         ../../modules/arch/mipsel.nix
         ../../modules/outputs/tftpboot.nix
         ../../modules/outputs/zyxel-nwa-fit.nix
+        ../../modules/zyxel-dual-image
       ];
 
       filesystem = dir {
@@ -168,6 +169,7 @@
             };
           };
       };
+
       boot = {
         # Critical because NWA50AX will extend your cmdline with the image number booted.
         # and some bootloader version.
@@ -182,6 +184,15 @@
         };
       };
 
+      # Dual image management service in userspace.
+      services.zyxel-dual-image = config.boot.zyxel-dual-image.build {
+        ensureActiveImage = "primary";
+        # TODO: use mtd names rather…
+        primaryMtdPartition = "/dev/mtd3";
+        secondaryMtdPartition = "/dev/mtd6";
+        bootConfigurationMtdPartition = "/dev/mtd10";
+      };
+
       #  DEVICE_VENDOR := ZyXEL
       #  KERNEL_SIZE := 8192k
       #  DEVICE_PACKAGES := kmod-mt7915-firmware zyxel-bootconfig