From: Jean THOMAS <git0@pub.jeanthomas.me>
Date: Tue, 23 Jun 2020 19:50:44 +0000 (+0200)
Subject: Only declare wants_zqcs signal if needed
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=373916617c799af2d67451fd314c52844606edf1;p=gram.git

Only declare wants_zqcs signal if needed
---

diff --git a/gram/core/refresher.py b/gram/core/refresher.py
index 9875699..b34ea27 100644
--- a/gram/core/refresher.py
+++ b/gram/core/refresher.py
@@ -291,7 +291,6 @@ class Refresher(Elaboratable):
         m = Module()
 
         wants_refresh = Signal()
-        wants_zqcs = Signal()
 
         settings = self._settings
 
@@ -314,6 +313,8 @@ class Refresher(Elaboratable):
         m.submodules.sequencer = sequencer
 
         if settings.timing.tZQCS is not None:
+            wants_zqcs = Signal()
+
             # ZQCS Timer ---------------------------------------------------------------------------
             zqcs_timer = RefreshTimer(int(self._clk_freq/self._zqcs_freq))
             m.submodules.zqcs_timer = zqcs_timer
@@ -369,6 +370,7 @@ class Refresher(Elaboratable):
                         ]
                         m.next = "Idle"
 
+        # Connect sequencer/executer outputs to cmd
         if settings.timing.tZQCS is None:
             m.d.comb += [
                 self.cmd.a.eq(sequencer.a),