Attempt to build for versa ecp5

[soc.git] / nix / ecp5.nix

diff --git a/nix/ecp5.nix b/nix/ecp5.nix
new file mode 100644 (file)
index 0000000..b3d8196
--- /dev/null
+++ b/nix/ecp5.nix
@@ -0,0 +1,38 @@
+{ version }:
+
+{ stdenv, python3Packages, yosys, libresoc-pre-litex, libresoc-pinmux, pkgsCross }:
+
+stdenv.mkDerivation {
+  pname = "libresoc-versa-ecp5";
+  inherit version;
+
+  src = ../src/soc/litex/florent;
+
+  nativeBuildInputs =
+    (with python3Packages; [
+    python libresoc-soc litex-boards litex litedram liteeth liteiclink litescope litesdcard
+    ])
+    ++ [ pkgsCross.powernv.buildPackages.gcc ];
+
+  postPatch = ''
+    patchShebangs --build .
+  '';
+
+  configurePhase = "true";
+
+  buildPhase = ''
+    runHook preBuild
+    export PINMUX="$(mktemp -d)"
+    ln -s ${libresoc-pinmux} "$PINMUX/ls180"
+    cp ${libresoc-pre-litex} libresoc/libresoc.v
+    ./versa_ecp5.py --sys-clk-freq=55e6 --build
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    runHook postInstall
+  '';
+
+  fixupPhase = "true";
+}