From 6b7e293c39dcb17f9f435e6c1c27f4ee0b1f589f Mon Sep 17 00:00:00 2001
From: Raptor Engineering Development Team <support@raptorengineering.com>
Date: Sat, 9 Apr 2022 15:19:22 -0500
Subject: [PATCH] Avoid timing violation on ECP5 PHY PAUSE signal

---
 gram/phy/ecp5ddrphy.py | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/gram/phy/ecp5ddrphy.py b/gram/phy/ecp5ddrphy.py
index 32a6792..007c143 100644
--- a/gram/phy/ecp5ddrphy.py
+++ b/gram/phy/ecp5ddrphy.py
@@ -101,10 +101,28 @@ class _DQSBUFMSettingManager(Elaboratable):
             with m.State("Idle"):
                 with m.If(self.rdly_csr.w_stb):
                     m.d.sync += self.pause.eq(1)
-                    m.next = "RdlyUpdateRequested"
+                    m.next = "RdlyUpdateRequestedDelay1"
+
+            with m.State("RdlyUpdateRequestedDelay1"):
+                m.next = "RdlyUpdateRequestedDelay2"
+
+            with m.State("RdlyUpdateRequestedDelay2"):
+                m.next = "RdlyUpdateRequestedDelay3"
+
+            with m.State("RdlyUpdateRequestedDelay3"):
+                m.next = "RdlyUpdateRequested"
 
             with m.State("RdlyUpdateRequested"):
                 m.d.sync += self.readclksel.eq(self.rdly_csr.w_data)
+                m.next = "ResetPauseDelay1"
+
+            with m.State("ResetPauseDelay1"):
+                m.next = "ResetPauseDelay2"
+
+            with m.State("ResetPauseDelay2"):
+                m.next = "ResetPauseDelay3"
+
+            with m.State("ResetPauseDelay3"):
                 m.next = "ResetPause"
 
             with m.State("ResetPause"):
-- 
2.30.2