From 2aaef61547b78fc005cc7e0e7b6651660f58123a Mon Sep 17 00:00:00 2001
From: David Shah <dave@ds0.me>
Date: Thu, 14 May 2020 13:07:59 +0100
Subject: ecp5: Don't promote VCC/GND to globals even if connected to clock
 port

Signed-off-by: David Shah <dave@ds0.me>
---
 ecp5/globals.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ecp5/globals.cc b/ecp5/globals.cc
index 65b1710f..28061e1a 100644
--- a/ecp5/globals.cc
+++ b/ecp5/globals.cc
@@ -68,6 +68,8 @@ class Ecp5GlobalRouter
         std::unordered_map<IdString, int> clockCount;
         for (auto &net : ctx->nets) {
             NetInfo *ni = net.second.get();
+            if (ni->name == ctx->id("$PACKER_GND_NET") || ni->name == ctx->id("$PACKER_VCC_NET"))
+                continue;
             clockCount[ni->name] = 0;
             for (const auto &user : ni->users) {
                 if (is_clock_port(user)) {
-- 
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