From cfa3753b89c684b66e2cb164226a3358493e5232 Mon Sep 17 00:00:00 2001
From: Robert Ou <rqou@robertou.com>
Date: Sat, 31 Mar 2018 02:56:11 -0700
Subject: [PATCH] coolrunner2: Split multi-bit nets
The PAR tool doesn't expect any "dangling" nets with no drivers nor
sinks. By splitting the nets, clean removes them.
---
techlibs/coolrunner2/synth_coolrunner2.cc | 1 +
1 file changed, 1 insertion(+)
diff --git a/techlibs/coolrunner2/synth_coolrunner2.cc b/techlibs/coolrunner2/synth_coolrunner2.cc
index 5d9e3cc90..2e94c3449 100644
--- a/techlibs/coolrunner2/synth_coolrunner2.cc
+++ b/techlibs/coolrunner2/synth_coolrunner2.cc
@@ -178,6 +178,7 @@ struct SynthCoolrunner2Pass : public ScriptPass
run("iopadmap -bits -inpad IBUF O:I -outpad IOBUFE I:IO -inoutpad IOBUFE O:IO -toutpad IOBUFE E:I:IO -tinoutpad IOBUFE E:O:I:IO");
run("attrmvcp -attr src -attr LOC t:IOBUFE n:*");
run("attrmvcp -attr src -attr LOC -driven t:IBUF n:*");
+ run("splitnets");
run("clean");
}