star64: init

Mostly based on the visionfive 2 config.
No GPU yet.

pine64/star64/sd-image.nix

@@ -0,0 +1,52 @@
+{ config, pkgs, lib, modulesPath, ... }:
+
+let firmware = pkgs.callPackage ./firmware.nix { };
+in {
+  imports = [
+    "${modulesPath}/profiles/base.nix"
+    "${modulesPath}/installer/sd-card/sd-image.nix"
+    ./default.nix
+  ];
+
+  sdImage = {
+    imageName =
+      "${config.sdImage.imageBaseName}-${config.system.nixos.label}-${pkgs.stdenv.hostPlatform.system}-pine64-star64.img";
+
+    # Overridden by postBuildCommands
+    populateFirmwareCommands = "";
+
+    firmwarePartitionOffset = 4;
+    firmwareSize = 4;
+
+    postBuildCommands = ''
+      # preserve root partition
+      eval $(partx $img -o START,SECTORS --nr 2 --pairs)
+
+      # increase image size for gpt backup header
+      truncate -s '+2M' $img
+
+      sfdisk $img <<EOF
+          label: gpt
+          unit: sectors
+          sector-size: 512
+
+          start=4096, size=4096, type=2E54B353-1271-4842-806F-E436D6AF6985
+          start=8192, size=8192, type=5B193300-FC78-40CD-8002-E86C45580B47
+          start=$START, size=$SECTORS, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, attrs="LegacyBIOSBootable"
+      EOF
+
+      eval $(partx $img -o START,SECTORS --nr 1 --pairs)
+      dd conv=notrunc if=${firmware.spl}/share/pine64-star64/spl.bin of=$img seek=$START count=$SECTORS
+
+      eval $(partx $img -o START,SECTORS --nr 2 --pairs)
+      dd conv=notrunc if=${firmware.uboot-fit-image}/share/pine64-star64/star64_fw_payload.img of=$img seek=$START count=$SECTORS
+    '';
+
+    populateRootCommands = ''
+      mkdir -p ./files/boot
+      ${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
+    '';
+  };
+
+  environment.systemPackages = [ firmware.updater-flash ];
+}