.gitignore

@@ -1,2 +1 @@
 result
-tmp

flake.lock

@@ -16,39 +16,7 @@
         "type": "github"
       }
     },
-    "mozilla-overlay": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1695805681,
-        "narHash": "sha256-1ElPLD8eFfnuIk0G52HGGpRtQZ4QPCjChRlEOfkZ5ro=",
-        "owner": "mozilla",
-        "repo": "nixpkgs-mozilla",
-        "rev": "6eabade97bc28d707a8b9d82ad13ef143836736e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "mozilla",
-        "repo": "nixpkgs-mozilla",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
-      "locked": {
-        "lastModified": 1700390070,
-        "narHash": "sha256-de9KYi8rSJpqvBfNwscWdalIJXPo8NjdIZcEJum1mH0=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "e4ad989506ec7d71f7302cc3067abd82730a4beb",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
       "locked": {
         "lastModified": 1697730408,
         "narHash": "sha256-Ww//zzukdTrwTrCUkaJA/NsaLEfUfQpWZXBdXBYfhak=",
@@ -62,26 +30,10 @@
         "type": "indirect"
       }
     },
-    "nixpkgs_3": {
-      "locked": {
-        "lastModified": 1697655685,
-        "narHash": "sha256-79Kuv+QdgsVc+rkibuAgWHnh8IXrLBTOKg5nM0Qvux0=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "80c1aab725151632ddc2a20caeb914e76dd0673c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-23.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "not-os": {
       "inputs": {
         "firmware": "firmware",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs"
       },
       "locked": {
         "lastModified": 1699416673,
@@ -99,28 +51,7 @@
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
+        "not-os": "not-os"
-        "not-os": "not-os",
-        "zynq-rs": "zynq-rs"
-      }
-    },
-    "zynq-rs": {
-      "inputs": {
-        "mozilla-overlay": "mozilla-overlay",
-        "nixpkgs": "nixpkgs_3"
-      },
-      "locked": {
-        "lastModified": 1700454627,
-        "narHash": "sha256-IWfZIlLHYdY6ockkP6QEDpOUU9wqdRXZ5cMqt8FnThU=",
-        "ref": "refs/heads/master",
-        "rev": "24c804e6f04256cbdd84b496f9022d36f8c5d613",
-        "revCount": 631,
-        "type": "git",
-        "url": "https://git.m-labs.hk/m-labs/zynq-rs"
-      },
-      "original": {
-        "type": "git",
-        "url": "https://git.m-labs.hk/m-labs/zynq-rs"
       }
     }
   },

flake.nix

@@ -1,69 +1,22 @@
 {
   description = "Not-OS port to the Zynq-7000 platform";
   
-  inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-unstable;
   inputs.not-os.url = github:cleverca22/not-os;
-  inputs.zynq-rs.url = git+https://git.m-labs.hk/m-labs/zynq-rs;
   
-  outputs = { self, nixpkgs, not-os, zynq-rs }:
+  outputs = { self, not-os }: {
-    let
+    packages.armv7l-linux = let
-      pkgs = import nixpkgs { system = "x86_64-linux"; };
+      platforms = (import not-os.inputs.nixpkgs { config = {}; }).platforms;
-      zynqpkgs = zynq-rs.packages.x86_64-linux;
+      eval = (import "${not-os}" {
-
+        extraModules = [
-      build = { target ? "zc706" }: let 
+          ./zynq_image.nix
-        fsbl = zynqpkgs."${target}-fsbl";
+        ];
-
+        platform = system: platforms.armv7l-hf-multiplatform;
-        u-boot = pkgs.pkgsCross.armv7l-hf-multiplatform.buildUBoot {   
+        system = "x86_64-linux";
-          defconfig = "xilinx_zynq_virt_defconfig";
+        crossSystem.system = "armv7l-linux";
-          preConfigure = ''
+        inherit (not-os.inputs) nixpkgs;
-            export DEVICE_TREE=zynq-zc706
+      });
-          '';
+    in {
-          extraMeta.platforms = ["armv7l-linux"];
+      zynq_image = eval.config.system.build.zynq_image;
-          filesToInstall = ["u-boot.elf"];
-        };
-
-        fsbl-sd = pkgs.runCommand "${target}-fsbl-sd"
-          {
-            buildInputs = [ zynqpkgs.mkbootimage ];
-          }
-          ''
-            bifdir=`mktemp -d`
-            cd $bifdir
-            ln -s ${fsbl}/fsbl.elf fsbl.elf
-            ln -s ${u-boot}/u-boot.elf u-boot.elf
-            cat > boot.bif << EOF
-            the_ROM_image:
-            {
-              [bootloader]fsbl.elf
-              u-boot.elf
-            }
-            EOF
-            mkdir $out $out/nix-support
-            mkbootimage boot.bif $out/boot.bin
-            echo file binary-dist $out/boot.bin >> $out/nix-support/hydra-build-products
-          '';
-        in {
-          "${target}-fsbl-sd" = fsbl-sd;
-        };
-
-      in rec {
-      packages.x86_64-linux = {
-        zc706-fsbl = zynqpkgs.zc706-fsbl;
-      } // (build { target = "zc706"; });
-      
-      packages.armv7l-linux = let
-        platforms = (import not-os.inputs.nixpkgs { config = {}; }).platforms;
-        eval = (import "${not-os}" {
-          extraModules = [
-            ./zynq_image.nix
-          ];
-          platform = system: platforms.armv7l-hf-multiplatform;
-          system = "x86_64-linux";
-          crossSystem.system = "armv7l-linux";
-          inherit (not-os.inputs) nixpkgs;
-        });
-      in {
-        zynq_image = eval.config.system.build.zynq_image;
-      };
     };
+  };
 }

zynq_image.nix

@@ -5,13 +5,9 @@
 let
   # dont use overlays for the qemu, it causes a lot of wasted time on recompiles
   x86pkgs = import pkgs.path { system = "x86_64-linux"; };
-  build = config.system.build;
   customKernel = pkgs.linux.override {
     extraConfig = ''
       OVERLAY_FS y
-      CORESIGHT_LINKS_AND_SINKS m
-      CORESIGHT_SINK_TPIU m
-      CORESIGHT_SOURCE_ETM3X m
     '';
   };
   customKernelPackages = pkgs.linuxPackagesFor customKernel;
@@ -19,27 +15,26 @@ in {
   boot.kernelPackages = customKernelPackages;
   nixpkgs.system = "armv7l-linux";
   system.build.zynq_image = let
-    cmdline = "root=/dev/mmcblk0 console=ttyPS0,115200n8 systemConfig=${builtins.unsafeDiscardStringContext build.toplevel}";
+    cmdline = "root=/dev/mmcblk0 console=ttyPS0,115200n8 systemConfig=${builtins.unsafeDiscardStringContext config.system.build.toplevel}";
     qemuScript = ''
       #!/bin/bash -v
       export PATH=${x86pkgs.qemu}/bin:$PATH
       set -x
       base=$(dirname $0)
 
-      mkdir ./tmp/
+      cp $base/root.squashfs /tmp/
-      cp $base/root.squashfs ./tmp/
+      chmod +w /tmp/root.squashfs
-      chmod +w ./tmp/root.squashfs
+      truncate -s 64m /tmp/root.squashfs
-      truncate -s 64M ./tmp/root.squashfs
 
       qemu-system-arm \
         -M xilinx-zynq-a9 \
         -serial /dev/null \
         -serial stdio \
         -display none \
-        -dtb $base/zynq-zc706.dtb \
+        -dtb $base/zynq-zc702.dtb \
         -kernel $base/zImage \
         -initrd $base/initrd \
-        -drive file=./tmp/root.squashfs,if=sd,format=raw \
+        -drive file=/tmp/root.squashfs,if=sd,format=raw \
         -append "${cmdline}"
     '';
   in pkgs.runCommand "zynq_image" {
@@ -49,11 +44,11 @@ in {
   } ''
     mkdir $out
     cd $out
-    cp  ${build.squashfs} root.squashfs
+    cp -s ${config.system.build.squashfs} root.squashfs
-    cp  ${build.kernel}/*zImage .
+    cp -s ${config.system.build.kernel}/*zImage .
-    cp  ${build.initialRamdisk}/initrd initrd
+    cp -s ${config.system.build.initialRamdisk}/initrd initrd
-    cp  ${build.kernel}/dtbs/zynq-zc706.dtb .
+    cp -s ${config.system.build.kernel}/dtbs/zynq-zc702.dtb .
-    ln -sv ${build.toplevel} toplevel
+    ln -sv ${config.system.build.toplevel} toplevel
     cp $qemuScriptPath qemu-script
     chmod +x qemu-script
     patchShebangs qemu-script
@@ -61,33 +56,33 @@ in {
   '';
   system.build.rpi_image_tar = pkgs.runCommand "dist.tar" {} ''
     mkdir -p $out/nix-support
-    tar -cvf $out/dist.tar ${build.rpi_image}
+    tar -cvf $out/dist.tar ${config.system.build.rpi_image}
     echo "file binary-dist $out/dist.tar" >> $out/nix-support/hydra-build-products
   '';
   environment.systemPackages = [ pkgs.strace ];
   environment.etc."service/getty/run".source = pkgs.writeShellScript "getty" ''
-    bash </dev/ttyPS0 >/dev/ttyPS0
+    agetty ttyPS0 115200
   '';
   environment.etc."pam.d/other".text = "";
 
   nixpkgs.overlays = [
     (self: super: {
+
       # armv7l cross-compile fixes
-      libuv = super.libuv.overrideAttrs (old: { doCheck = false;});
+      libuv = super.libuv.overrideAttrs (old: {
-      elfutils = super.elfutils.overrideAttrs (old: { doCheck = false; doInstallCheck = false;});
+        doCheck = false;
+      });
+      elfutils = super.elfutils.overrideAttrs (old: {
+        doCheck = false;
+        doInstallCheck = false;
+      });
       systemd = super.systemd.override { withEfi = false; };
       procps = super.procps.override { withSystemd = false; };
       nix = super.nix.override { enableDocumentation = false; };
 
       # closure size fixes
       openssh = super.openssh.override { withFIDO = false; withKerberos = false; };
-      util-linux = super.util-linux.override {
+      util-linux = super.util-linux.override { pamSupport=false; capabilitiesSupport=false; ncursesSupport=false; systemdSupport=false; nlsSupport=false; translateManpages=false; };
-        pamSupport=false;
-        capabilitiesSupport=false;
-        ncursesSupport=false;
-        systemdSupport=false;
-        nlsSupport=false;
-        translateManpages=false; };
       utillinuxCurses = self.util-linux;
       utillinuxMinimal = self.util-linux;
     })