From: Cesar Strauss <cestrauss@gmail.com>
Date: Sun, 6 Mar 2022 18:00:37 +0000 (-0300)
Subject: Copy the startup delay from issuer.py to inorder.py
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=64dc05bb295845fd02e066a2f42e54345791c259;p=soc.git

Copy the startup delay from issuer.py to inorder.py

Fixes TestIssuerInternalInOrder hanging at startup.
---

diff --git a/src/soc/simple/inorder.py b/src/soc/simple/inorder.py
index 8174fc5c..03a101a4 100644
--- a/src/soc/simple/inorder.py
+++ b/src/soc/simple/inorder.py
@@ -120,6 +120,12 @@ class FetchFSM(ControlBase):
 
         with m.FSM(name='fetch_fsm'):
 
+            # allow fetch to not run at startup due to I-Cache reset not
+            # having time to settle.  power-on-reset holds dbg.core_stopped_i
+            with m.State("PRE_IDLE"):
+                with m.If(~dbg.core_stopped_i & ~dbg.core_stop_o):
+                    m.next = "IDLE"
+
             # waiting (zzz)
             with m.State("IDLE"):
                 with m.If(~dbg.stopping_o & ~fetch_failed):