From 3598e08212a70534786e6da0aca9175955023830 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Sun, 9 Jun 2019 00:06:17 +0800
Subject: [PATCH] symbiflow: 100MHz timing (HACK)

---
 eda/symbiflow.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/eda/symbiflow.nix b/eda/symbiflow.nix
index 1dae74c..3286242 100644
--- a/eda/symbiflow.nix
+++ b/eda/symbiflow.nix
@@ -7,8 +7,8 @@
       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
+        ${yosys}/bin/yosys -p "read_ilang $src/top.il; synth_ecp5 -top top -nomux -json $out/top.json"
+        ${pkgs.nextpnr}/bin/nextpnr-ecp5 --json $out/top.json --textcfg $out/top.config `cat $src/device` --lpf $src/top.lpf --freq 100
         ${pkgs.trellis}/bin/ecppack --svf-rowsize 100000 --svf $out/top.svf $out/top.config $out/top.bit
         '';
 	  };