Merge pull request #317 from DurandA/feature/ecp5-unpromote-clock
Restrict clock promotion to global on ECP5
diff --git a/ecp5/globals.cc b/ecp5/globals.cc
index 9dd4449..bc5c66d 100644
--- a/ecp5/globals.cc
+++ b/ecp5/globals.cc
@@ -435,6 +435,9 @@
log_info("Promoting globals...\n");
auto clocks = get_clocks();
for (auto clock : clocks) {
+ bool is_noglobal = bool_or_default(clock->attrs, ctx->id("noglobal"), false);
+ if (is_noglobal)
+ continue;
log_info(" promoting clock net %s to global network\n", clock->name.c_str(ctx));
if (is_ooc) // Don't actually do anything in OOC mode, global routing will be done in the full design
clock->is_global = true;
