79 lines
2.7 KiB
Nix
79 lines
2.7 KiB
Nix
{
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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) mkOption types concatStringsSep;
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inherit (pkgs) liminix callPackage writeText;
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in
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{
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options = {
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outputs = mkOption {
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type = types.attrsOf types.package;
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default = {};
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};
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};
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config = {
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outputs = rec {
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squashfs = liminix.builders.squashfs config.filesystem.contents;
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tftpd = pkgs.buildPackages.tufted;
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kernel = liminix.builders.kernel.override {
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inherit (config.kernel) config src extraPatchPhase;
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};
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dtb = (callPackage ../kernel/dtb.nix {}) {
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dts = config.kernel.dts.src;
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includes = config.kernel.dts.includes ++ [
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"${kernel.headers}/include"
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];
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};
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uimage = (callPackage ../kernel/uimage.nix {}) {
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commandLine = concatStringsSep " " config.boot.commandLine;
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inherit (config.device) loadAddress entryPoint;
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inherit kernel;
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inherit dtb;
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};
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combined-image = pkgs.runCommand "firmware.bin" {
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nativeBuildInputs = [ pkgs.buildPackages.ubootTools ];
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} ''
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mkdir $out
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dd if=${uimage} of=$out/firmware.bin bs=128k conv=sync
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dd if=${squashfs} of=$out/firmware.bin bs=128k conv=sync,nocreat,notrunc oflag=append
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'';
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boot-scr =
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let
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inherit (pkgs.lib.trivial) toHexString;
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uimageStart = 10485760; # 0xa00000
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squashfsStart = uimageStart + 4 * 1024 * 1024;
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squashfsSize = 8;
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cmd = "mtdparts=phram0:${toString squashfsSize}M(nix) phram.phram=phram0,0x${toHexString squashfsStart},${toString squashfsSize}Mi memmap=${toString squashfsSize}M\$0x${toHexString squashfsStart} root=1f00";
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in
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pkgs.buildPackages.writeScript "firmware.bin" ''
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setenv serverip 192.168.8.148
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setenv ipaddr 192.168.8.251
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setenv bootargs '${concatStringsSep " " config.boot.commandLine} ${cmd}'
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tftp 0x8${toHexString uimageStart} result/uimage ; tftp 0x8${toHexString squashfsStart} result/squashfs
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bootm 0x${toHexString uimageStart}
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'';
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directory = pkgs.runCommand "liminix" {} (''
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mkdir $out
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cd $out
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ln -s ${squashfs} squashfs
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ln -s ${kernel} vmlinux
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ln -s ${manifest} manifest
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ln -s ${kernel.headers} build
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'' +
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(if config.device.loadAddress != null then
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''
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ln -s ${uimage} uimage
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ln -s ${boot-scr} flash.scr
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'' else ""));
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# this exists so that you can run "nix-store -q --tree" on it and find
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# out what's in the image, which is nice if it's unexpectedly huge
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manifest = writeText "manifest.json" (builtins.toJSON config.filesystem.contents);
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};
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};
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}
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