NixOS on ARM/Orange Pi Zero2 H616: Difference between revisions

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 Upstream unstable NixOS AArch64 image will boot on the Orange Pi Zero2 (H616), using the proper upstream u-boot.
-The support of allwiner H616 soc was introduced to the Linux upstream kernel since 6.0 version, but the 5.15.78 kernel still able to boot from unstable NixOS brunch.
+The limited support of allwiner H616 soc was introduced to the Linux upstream kernel since 6.0 version, see [[#Periphery|periphery]] for details.
 == Board-specific installation notes ==
@@ Line 40: / Line 40: @@
 === Better way ===
-You can use next flake to prepare ready-to-work image
+To get the more useful output from board better to build image with kernel which supports more periphery (like USB). See [[#Periphery|periphery]].
-<syntaxHighlight lang=nix>
-{
-  description = "Build image for Orange Pi Zero2 H616";
-  inputs.nixpkgs.url = github:nixos/nixpkgs;
-  outputs = { self, nixpkgs }: rec {
-    # Better to avoid cross-compiling to
-    # download derivations from cache
-    system = "aarch64-linux";
-    nixosConfigurations.orpiz2 = nixpkgs.lib.nixosSystem rec {
-      system = "aarch64-linux";
-      modules = [
-        # Based on generic aarch64 image
-        "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64.nix"
-        {
-          config = let
-            # Appropriate bootloader
-            bootloader = nixpkgs.legacyPackages.
-              aarch64-linux.ubootOrangePiZero2;
-          in {
-            system.stateVersion = "22.11";
-            # Use the supported kernel
-            boot.kernelPackages = nixpkgs.legacyPackages.
-              aarch64-linux.linuxKernel.packages.linux_6_0;
-            sdImage.postBuildCommands = ''
-              # Emplace bootloader to specific place in firmware file
-              dd if=${bootloader}/u-boot-sunxi-with-spl.bin of=$img \
-                  bs=1024 seek=8 \
-                  conv=notrunc # avoid truncation of image
-            '';
-          };
-        }
-      ];
-    };
-    images = {
-      orpiz2 = nixosConfigurations.orpiz2.config.system.build.sdImage;
-    };
-  };
-}
-</syntaxHighlight>
-Run <syntaxhighlight lang="bash">nix build .#images.orpiz2</syntaxhighlight> to prepare image
 == Serial console==
@@ Line 92: / Line 50: @@
 Connected at 1Gbps mode.
-== USB ==
+== Periphery==
+Current newest numerated kernel version 6.1 does not contains full H616 sock support. At least some regulators and USB blocks are [https://github.com/torvalds/linux/blob/v6.1-rc8/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi missing] in DTS. But they are [https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi available] in master branch.
+Here is flake with which an image with better periphery support (at least - USB) may be build.
+<syntaxHighlight lang=nix>
+{
+  description = "Build image for OrangePi Zero 2";
+  inputs = {
+    nixpkgs.url = github:nixos/nixpkgs/nixos-22.11;
+  };
+  outputs = { self, nixpkgs }: let
+    system = "aarch64-linux";
+    #Build manipulation
+    stateVersion = "22.11";   # NixOS Version
+    useUnstableKernel = true; # Set to false to use mainline kernel
+    compressImage = true;     # Set to false to disable image compressing
-The vanilla dts from kernel 6.0.9 does not contains required usb sections. Working on correct dts overlay for it.
+    pkgs = nixpkgs.legacyPackages.x86_64-linux.pkgsCross.aarch64-multiplatform;
-== Wireless ==
+    # Build unstable kernel
+    kernel =
+      with pkgs;
+      with lib;
+      buildLinux rec {
+        kernelPatches = [
+          linuxKernel.kernelPatches.bridge_stp_helper
+          linuxKernel.kernelPatches.request_key_helper
+        ];
+        src = fetchGit {
+          url = git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git;
+          rev = "8395ae05cb5a2e31d36106e8c85efa11cda849be";
+        };
+        version = "6.1.0";
+        modDirVersion = version;
+        extraMeta.branch = versions.majorMinor version;
+      };
-Not tested
+    # Boot related configuration
+    bootConfig = let
+      bootloaderPackage = pkgs.ubootOrangePiZero2;
+      bootloaderSubpath = "/u-boot-sunxi-with-spl.bin";
+      # Disable ZFS support to prevent problems with fresh kernels.
+      filesystems = pkgs.lib.mkForce [ "btrfs" "reiserfs" "vfat" "f2fs" "xfs"
+                                       "ntfs" "cifs" /* "zfs" */ "ext4" "vfat"
+                                     ];
+    in {
+      system.stateVersion = stateVersion;
+      boot.kernelPackages = if useUnstableKernel
+        then pkgs.linuxPackagesFor kernel
+        else pkgs.linuxPackages_latest;
+      boot.supportedFilesystems = filesystems;
+      boot.initrd.supportedFilesystems = filesystems;
+      sdImage = {
+        postBuildCommands = ''
+          # Emplace bootloader to specific place in firmware file
+          dd if=${bootloaderPackage}${bootloaderSubpath} of=$img    \
+            bs=8 seek=1024                                          \
+            conv=notrunc # prevent truncation of image
+        '';
+        inherit compressImage;
+      };
+    };
-== HDMI ==
+    # NixOS configuration
+    nixosSystem = nixpkgs.lib.nixosSystem rec {
+      inherit system;
+      modules = [
+        # Default aarch64 SOC System
+        "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64.nix"
+        # Minimal configuration
+        "${nixpkgs}/nixos/modules/profiles/minimal.nix"
+        { config = bootConfig; }
+        # Put your configuration here. e.g. ./configuration.nix
+      ];
+    };
+  in {
+    inherit system;
+    # Run nix build .#images.orangePiZero2 to build image.
+    images = {
+      orangePiZero2 = nixosSystem.config.system.build.sdImage;
+    };
+  };
+}
+</syntaxHighlight>
-Not tested
+{{note|Be careful with such firmware - the unstable kernel version may be harmfull}}
 == Resources ==