starfive/visionfive/v1: init

starfive/visionfive/v1/README.md

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+### Build the SD image
+- ``nix-build "<nixpkgs/nixos>" -A config.system.build.sdImage -I nixos-config=iso.nix``
+
+- ``iso.nix``
+    ```nix
+    { config, ... }:
+
+    {
+    imports = [ <nixos-hardware/starfive/visionfive/v1/sd-image-installer.nix> ];
+    # or imports = [ "${nixos-hardware-directory}/starfive/visionfive/v1/sd-image-installer.nix" ];
+
+    nixpkgs.crossSystem = {
+        config = "riscv64-unknown-linux-gnu";
+        system = "riscv64-linux";
+    };
+    }
+    ```
+
+### Relevant documentation
+- Flashing
+- - https://doc-en.rvspace.org/VisionFive/Quick_Start_Guide/VisionFive_QSG/hardware_connection.html
+- - https://doc-en.rvspace.org/VisionFive/Quick_Start_Guide/VisionFive_QSG/using_xmodem1.html
+- Recovery
+- - https://doc-en.rvspace.org/VisionFive/Quick_Start_Guide/VisionFive_QSG/hardware_setup.html
+- - https://doc-en.rvspace.org/VisionFive/Quick_Start_Guide/VisionFive_QSG/for_maclinux4.html

starfive/visionfive/v1/default.nix

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+{ config, lib, pkgs, ...}:
+
+{
+  hardware.deviceTree.name = lib.mkDefault "starfive/jh7100-starfive-visionfive-v1.dtb";
+  systemd.services."serial-getty@hvc0".enable = lib.mkDefault false;
+  environment.systemPackages = with pkgs; lib.mkDefault [ mtdutils ];
+
+  boot = {
+    # Force no ZFS (from nixos/modules/profiles/base.nix) until updated to kernel 6.0
+    supportedFilesystems = lib.mkForce [ "btrfs" "reiserfs" "vfat" "f2fs" "xfs" "ntfs" "cifs" ];
+    consoleLogLevel = lib.mkDefault 7;
+    kernelPackages = lib.mkDefault (pkgs.callPackage ./linux.nix { inherit (config.boot) kernelPatches; });
+
+    kernelParams = lib.mkDefault [
+      "console=tty0"
+      "console=ttyS0,115200n8"
+      "earlycon=sbi"
+    ];
+
+    initrd.kernelModules = lib.mkDefault [
+      "dw-axi-dmac-platform"
+      "dw_mmc-pltfm"
+      "spi-dw-mmio"
+    ];
+
+    loader = {
+      grub.enable = lib.mkDefault false;
+      generic-extlinux-compatible.enable = lib.mkDefault true;
+    };
+  };
+}

starfive/visionfive/v1/firmware.nix

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+{ runCommand
+, buildPackages
+, pkgs
+}:
+
+let
+  uboot = pkgs.callPackage ./uboot.nix { };
+
+  opensbi = pkgs.opensbi.override {
+    withPayload = "${uboot}/u-boot.bin";
+    withFDT = "${uboot}/u-boot.dtb";
+  };
+in runCommand "firmware-starfive-visionfive-v1" {
+  nativeBuildInputs = with buildPackages; [ xxd ];
+} ''
+  function handle_file {
+    inFile=$1
+    echo inFile: $inFile
+    outFile=$2
+    inSize=`stat -c "%s" $inFile`
+    inSize32HexBe=`printf "%08x\n" $inSize`
+    inSize32HexLe=''${inSize32HexBe:6:2}''${inSize32HexBe:4:2}''${inSize32HexBe:2:2}''${inSize32HexBe:0:2}
+    echo "inSize: $inSize (0x$inSize32HexBe, LE:0x$inSize32HexLe)"
+    echo $inSize32HexLe | xxd -r -ps > $outFile
+    cat $inFile >> $outFile
+    echo outFile: $outFile
+    outSize=`stat -c "%s" $outFile`
+    outSize32HexBe=`printf "%08x\n" $outSize`
+    echo "outSize: $outSize (0x$outSize32HexBe)"
+  }
+
+  mkdir -p "$out/nix-support"
+  echo "file bin \"$out/opensbi_u-boot_starfive_visionfive_v1.bin\"" >> "$out/nix-support/hydra-build-products"
+  handle_file ${opensbi}/share/opensbi/lp64/generic/firmware/fw_payload.bin $out/opensbi_u-boot_starfive_visionfive_v1.bin
+''

starfive/visionfive/v1/linux.nix

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+{ lib
+, callPackage
+, linuxPackagesFor
+, kernelPatches
+, ... }:
+
+let
+  modDirVersion = "6.0.0";
+
+  linuxPkg = { fetchFromGitHub, buildLinux, ... } @ args:
+    buildLinux (args // {
+      inherit modDirVersion kernelPatches;
+      version = "${modDirVersion}-starfive-visionfive-v1";
+
+      src = fetchFromGitHub {
+        owner = "starfive-tech";
+        repo = "linux";
+        rev = "cfcb617265422c0af0ae5bc9688dceba2d10b27a";
+        sha256 = "sha256-EAMCOtJZ51xSLySQPaZyomfa/1Xs9kNedz04tIbELqg=";
+      };
+
+      defconfig = "starfive_jh7100_fedora_defconfig";
+
+      structuredExtraConfig = with lib.kernel; {
+        KEXEC = yes;
+        SERIAL_8250_DW = yes;
+        PINCTRL_STARFIVE = yes;
+        DW_AXI_DMAC_STARFIVE = yes;
+        PTP_1588_CLOCK = yes;
+        STMMAC_ETH = yes;
+        STMMAC_PCI = yes;
+      };
+
+      extraMeta.branch = "visionfive";
+    } // (args.argsOverride or { }));
+in lib.recurseIntoAttrs (linuxPackagesFor (callPackage linuxPkg { }))

starfive/visionfive/v1/sd-image-installer.nix

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+# To build, use:
+# nix-build "<nixpkgs/nixos>" -I nixos-config=starfive/visionfive/v1/sd-image-installer.nix -A config.system.build.sdImage
+{
+  imports = [
+    <nixpkgs/nixos/modules/profiles/installation-device.nix>
+    ./sd-image.nix
+  ];
+
+  # the installation media is also the installation target,
+  # so we don't want to provide the installation configuration.nix.
+  installer.cloneConfig = false;
+}

starfive/visionfive/v1/sd-image.nix

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+# To build, use:
+# nix-build "<nixpkgs}/nixos>" -I nixos-config=starfive/visionfive/v1/sd-image.nix -A config.system.build.sdImage
+{ config, pkgs, ... }:
+
+let
+  firmware = pkgs.callPackage ./firmware.nix { };
+in {
+  imports = [
+    <nixpkgs/nixos/modules/profiles/base.nix>
+    <nixpkgs/nixos/modules/installer/sd-card/sd-image.nix>
+    ./default.nix
+  ];
+
+  sdImage = {
+    imageName = "${config.sdImage.imageBaseName}-${config.system.nixos.label}-${pkgs.stdenv.hostPlatform.system}-starfive-visionfive-v1.img";
+
+    # We have to use custom boot firmware since we do not support
+    # StarFive's Fedora MMC partition layout. Thus, we include this in
+    # the image's firmware partition so the user can flash the custom firmware.
+    populateFirmwareCommands = ''
+      cp ${firmware}/opensbi_u-boot_starfive_visionfive_v1.bin firmware/opensbi_u-boot_starfive_visionfive_v1.bin
+    '';
+
+    populateRootCommands = ''
+      mkdir -p ./files/boot
+      ${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
+    '';
+  };
+}

starfive/visionfive/v1/uboot.nix

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+{ fetchFromGitHub
+, buildUBoot
+}:
+
+buildUBoot {
+  version = "2022.04";
+
+  src = fetchFromGitHub {
+    owner = "Madouura";
+    repo = "u-boot";
+    rev = "fe61fbcc8c5d3f7a589d2a6ea61855ab77de621f";
+    sha256 = "sha256-jMZYxAHB37pNzzLdb8wupZA1CeD0gB84x18B7XVzq/M=";
+  };
+
+  defconfig = "starfive_jh7100_visionfive_smode_defconfig";
+  filesToInstall = [ "u-boot.bin" "u-boot.dtb" ];
+}