From: Tobias Platen <tplaten@posteo.de>
Date: Sun, 9 May 2021 16:57:55 +0000 (+0200)
Subject: src/soc/fu/ldst/loadstore.py: add skeleton for fsm
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a8abc47902f84db17733cf29ee06a841e30e8905;p=soc.git

src/soc/fu/ldst/loadstore.py: add skeleton for fsm
---

diff --git a/src/soc/fu/ldst/loadstore.py b/src/soc/fu/ldst/loadstore.py
index 0397f87d..bec6536d 100644
--- a/src/soc/fu/ldst/loadstore.py
+++ b/src/soc/fu/ldst/loadstore.py
@@ -99,6 +99,26 @@ class LoadStore1(PortInterfaceBase):
         #self.nia           = Signal(64)
         #self.srr1          = Signal(16)
 
+        # fsm skeleton
+        with m.Switch(self.state):
+            with m.Case(State.IDLE):
+                pass
+            with m.Case(State.SECOND_REQ):
+                # req.eq(1);
+                # v.state.eq(ACK_WAIT)
+                # v.last_dword.eq(0);
+                pass
+            with m.Case(State.ACK_WAIT):
+                pass
+            with m.Case(State.MMU_LOOKUP):
+                pass
+            with m.Case(State.TLBIE_WAIT):
+                pass
+            with m.Case(State.FINISH_LFS):
+                pass
+            with m.Case(State.COMPLETE):
+                pass
+
     def set_wr_addr(self, m, addr, mask, misalign):
         m.d.comb += self.load.eq(0) # store operation