add override options to nextpnr-xilinx

(identical method to nextpnr-ecp5)

diff --git a/nmigen/vendor/xilinx.py b/nmigen/vendor/xilinx.py
index 79bb36715c24a1062595cfec971506cc5f22161a..2e589fc1c835ceeacf7fa78e69f7a5e76eec1072 100644 (file)
--- a/nmigen/vendor/xilinx.py
+++ b/nmigen/vendor/xilinx.py
@@ -519,6 +519,7 @@ class XilinxPlatform(TemplatedPlatform):
             --write {{name}}_routed.json
             --fasm {{name}}.fasm
             --seed 1
+            {{get_override("nextpnr_opts")|options}}
         """,
         r"""
         {{invoke_tool("fasm2frames")}}