Create github artifacts for ECP5 devices

ECP5 eval board (tested and working) and Orange Crap (untested)

Signed-off-by: Michael Neuling <mikey@neuling.org>

.github/workflows/test.yml

@@ -47,12 +47,26 @@ jobs:
     - uses: actions/checkout@v2
     - run: docker run -t -v $PWD:/build -w /build ghdl/vunit:llvm bash -c "make -j$(nproc) ${{ matrix.task }}"
 
-  symbiflow-ecp5:
+  symbiflow:
+    strategy:
+      fail-fast: false
+      max-parallel: 2
+      matrix:
+        task: [ ECP5-EVN, ORANGE-CRAB ]
     runs-on: ubuntu-latest
+    env:
+      DOCKER: 1
+      SYNTH_ECP5_FLAGS: -noflatten
+      FPGA_TARGET: ${{matrix.task}}
     steps:
     - uses: actions/checkout@v2
-    - run: make DOCKER=1 FPGA_TARGET=ECP5-EVN SYNTH_ECP5_FLAGS="-noflatten" microwatt.json
-    - run: make DOCKER=1 FPGA_TARGET=ECP5-EVN microwatt.bit
+    - run: make microwatt.json
+    - run: make microwatt.bit
+    - run: make microwatt.svf
+    - uses: actions/upload-artifact@v2
+      with:
+        name: ${{matrix.task}}-bitstream
+        path: microwatt.svf
 
 # test building verilog target from yosys/nextpnr
   verilog:
@@ -60,3 +74,5 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - run: make DOCKER=1 microwatt.v
+
+