From: David Carne <davidcarne@gmail.com>
Date: Tue, 16 Jul 2013 16:17:21 +0000 (+0200)
Subject: fhdl/tools: clock domain merging for clock renaming
X-Git-Tag: 24jan2021_ls180~2099^2~523
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=faa8b7c49a0affebf476ec9c57387203e2906ec7;p=litex.git

fhdl/tools: clock domain merging for clock renaming
---

diff --git a/migen/fhdl/tools.py b/migen/fhdl/tools.py
index 7e934c90..44733366 100644
--- a/migen/fhdl/tools.py
+++ b/migen/fhdl/tools.py
@@ -224,7 +224,10 @@ def rename_clock_domain_expr(f, old, new):
 
 def rename_clock_domain(f, old, new):
 	rename_clock_domain_expr(f, old, new)
-	f.sync[new] = f.sync[old]
+	if new in f.sync:
+		f.sync[new].extend(f.sync[old])
+	else:
+		f.sync[new] = f.sync[old]
 	del f.sync[old]
 	for special in f.specials:
 		special.rename_clock_domain(old, new)