72 lines
1.7 KiB
Nix
72 lines
1.7 KiB
Nix
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{
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config
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, pkgs
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, lib
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, ...
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}:
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let
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inherit (lib) mkIf mkEnableOption mkOption types concatStringsSep;
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models = "6b e1 6f e1 ff ff ff ff ff ff";
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in {
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options.system.outputs = {
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zyxel-nwa-fit = mkOption {
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type = types.package;
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description = ''
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zyxel-nwa-fit
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*************
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This output provides a FIT image for Zyxel NWA series
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containing a kernel image and an UBIFS rootfs.
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It can usually be used as a factory image to install Liminix
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on a system with pre-existing firmware and OS.
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'';
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};
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};
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imports = [
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./ubivolume.nix
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];
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config = mkIf (config.rootfsType == "ubifs") {
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system.outputs.zyxel-nwa-fit =
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let
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o = config.system.outputs;
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# 8129kb padding.
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paddedKernel = pkgs.runCommand "padded-kernel" {} ''
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cp --no-preserve=mode ${o.uimage} $out
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dd if=/dev/zero of=$out bs=1 count=1 seek=8388607
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'';
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firmwareImage = pkgs.runCommand "firmware-image" {} ''
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cat ${paddedKernel} ${o.rootfs} > $out
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'';
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dts = pkgs.writeText "image.its" ''
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/dts-v1/;
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/ {
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description = "Zyxel FIT (Flattened Image Tree)";
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compat-models = [${models}];
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#address-cells = <1>;
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images {
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firmware {
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data = /incbin/("${firmwareImage}");
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type = "firmware";
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compression = "none";
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hash@1 {
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algo = "sha1";
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};
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};
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};
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};
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'';
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in
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pkgs.runCommand "zyxel-nwa-fit" {
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nativeBuildInputs = [ pkgs.pkgsBuildBuild.ubootTools pkgs.pkgsBuildBuild.dtc ];
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} ''
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mkimage -f ${dts} $out
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'';
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};
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}
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