default.nix

@@ -1,8 +1,4 @@
-{ pkgs }:
-let
-  hx = import ./derivations.nix { inherit pkgs; };
-in
-  hx // {
-    symbiflow = import ./eda/symbiflow.nix { inherit pkgs; yosys = hx.yosys; };
-    vivado = import ./eda/vivado.nix { inherit pkgs; };
-  }
+{ pkgs ? import <nixpkgs> {}}:
+(import ./derivations.nix { inherit pkgs; }) // {
+  vivado = import ./eda/vivado.nix { inherit pkgs; };
+}

eda/symbiflow.nix

@@ -1,15 +0,0 @@
-{ pkgs, yosys }:
-{
-  buildBitstream = { name, src }:
-    pkgs.stdenv.mkDerivation {
-      inherit name src;
-      phases = [ "buildPhase" ];
-      buildPhase =
-        ''
-        mkdir $out
-        ${yosys}/bin/yosys -p "read_ilang $src/top.il; synth_ecp5 -top top -json $out/top.json"
-        ${pkgs.nextpnr}/bin/nextpnr-ecp5 --json $out/top.json --textcfg $out/top.config `cat $src/device` --lpf $src/top.lpf
-        ${pkgs.trellis}/bin/ecppack --svf-rowsize 100000 --svf $out/top.svf $out/top.config $out/top.bit
-        '';
-	  };
-}

eda/vivado.nix

@@ -33,5 +33,5 @@ in
           mkdir $out
           cp *.dcp *.rpt *.bit $out
           '';
-      };
+  	  };
   }

examples/helloworld_ecp5.nix

@@ -1,26 +0,0 @@
-{ pkgs ? import <nixpkgs> {}
-, hx ? import ../default.nix { inherit pkgs; }}:
-
-let
-  symbiflowInput = pkgs.runCommand "helloworld-symbiflow-input" {
-      buildInputs = [ (pkgs.python3.withPackages(ps: [hx.nmigen hx.heavycomps])) hx.yosys ];
-    }
-    ''
-    mkdir $out
-
-    python ${./helloworld_ecp5.py} > $out/top.il
-
-    cat > $out/top.lpf << EOF
-    LOCATE COMP "serial_tx" SITE "A4";
-    IOBUF PORT "P3" IO_TYPE=LVDS;
-    LOCATE COMP "tx" SITE "B19";
-    IOBUF PORT "C11" IO_TYPE=LVCMOS33;
-    EOF
-
-    echo -n "--um-45k --package CABGA381" > $out/device
-    '';
-in
-  hx.symbiflow.buildBitstream {
-    name = "helloworld-bitstream";
-    src = symbiflowInput;
-  }

examples/helloworld_ecp5.py

@@ -1,49 +0,0 @@
-from nmigen import *
-from nmigen.back import rtlil
-
-from heavycomps import uart
-
-
-class Top(Elaboratable):
-    def __init__(self, baudrate=115200):
-        self.baudrate = baudrate
-        self.clk100 = Signal()
-        self.serial_tx = Signal()
-
-    def elaborate(self, platform):
-        m = Module()
-
-        cd_sync = ClockDomain(reset_less=True)
-        m.domains += cd_sync
-        m.d.comb += cd_sync.clk.eq(self.clk100)
-
-        string = "Hello World!\r\n"
-        mem = Memory(width=8, depth=len(string),
-                     init=[ord(c) for c in string])
-        m.submodules.rdport = rdport = mem.read_port(synchronous=False)
-
-        tx = uart.RS232TX(round(2**32*self.baudrate/100e6))
-        m.submodules.tx = tx
-        m.d.comb += [
-            tx.stb.eq(1),
-            tx.data.eq(rdport.data),
-            self.serial_tx.eq(tx.tx)
-        ]
-
-        with m.If(tx.ack):
-            with m.If(rdport.addr == len(string) - 1):
-                m.d.sync += rdport.addr.eq(0)
-            with m.Else():
-                m.d.sync += rdport.addr.eq(rdport.addr + 1)
-        
-        return m
-
-
-def main():
-    top = Top()
-    output = rtlil.convert(Fragment.get(top, None),
-        ports=(top.clk100, top.serial_tx))
-    print(output)
-
-if __name__ == "__main__":
-    main()

examples/helloworld_kintex7.nix

@@ -2,7 +2,7 @@
 , hx ? import ../default.nix { inherit pkgs; }}:
 
 let
-  vivadoInput = pkgs.runCommand "helloworld-vivado-input" {
+  vivadoInput = pkgs.runCommand "test-vivado-input" {
       buildInputs = [ (pkgs.python3.withPackages(ps: [hx.nmigen hx.heavycomps])) hx.yosys ];
     }
     ''
@@ -43,6 +43,6 @@ let
     '';
 in
   hx.vivado.buildBitstream {
-    name = "helloworld-bitstream";
+    name = "test-design";
     src = vivadoInput;
   }

release.nix

@@ -1,9 +1,5 @@
 { pkgs ? import <nixpkgs> {}}:
 let
   derivations = import ./derivations.nix { inherit pkgs; };
-  jobs = derivations // {
-    helloworld_ecp5 = import ./examples/helloworld_ecp5.nix { inherit pkgs; };
-    helloworld_kintex7 = import ./examples/helloworld_kintex7.nix { inherit pkgs; };
-  };
 in
-  builtins.mapAttrs (name: value: pkgs.lib.hydraJob value) jobs
+  builtins.mapAttrs (name: value: pkgs.lib.hydraJob value) derivations