stm32: add humpback fpga build dependencies

stm32/default.nix

@@ -8,7 +8,7 @@ let
   rustPlatform = pkgs.recurseIntoAttrs (pkgs.callPackage ./rustPlatform.nix {
     inherit rustManifest;
   });
-  buildStm32Firmware = { name, src, patchPhase ? "", checkPhase ? "" }:
+  buildStm32Firmware = { name, src, patchPhase ? "", extraBuildInputs ? [], checkPhase ? "" }:
     let
       cargoSha256Drv = pkgs.runCommand "${name}-cargosha256" { } ''cp "${src}/cargosha256.nix" $out'';
     in
@@ -20,7 +20,7 @@ let
         cargoSha256 = (import cargoSha256Drv);
 
         inherit patchPhase;
-        buildInputs = [ pkgs.llvm ];
+        buildInputs = [ pkgs.llvm ] ++ extraBuildInputs;
         buildPhase = ''
           export CARGO_HOME=$(mktemp -d cargo-home.XXX)
           cargo build --release
@@ -58,5 +58,11 @@ in
     humpback-dds = buildStm32Firmware {
       name = "humpback-dds";
       src = <humpbackDdsSrc>;
+      extraBuildInputs = [
+        (pkgs.python3.withPackages(ps: [ (pkgs.callPackage "${<humpbackDdsSrc>}/nix/migen.nix" {}) ]))
+        pkgs.yosys
+        pkgs.nextpnr
+        pkgs.icestorm
+      ];
     };
   }