From ff0df100e93742e7af21251e8a52fba16078a60d Mon Sep 17 00:00:00 2001
From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Wed, 30 Aug 2023 18:08:36 +0200
Subject: [PATCH] build/efinix: Add get_pin (from sig) to EfinixPlatform and
 use it to simplify/fix IOs exclusion.

---
 litex/build/efinix/common.py   | 12 +++---------
 litex/build/efinix/platform.py |  5 +++++
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/litex/build/efinix/common.py b/litex/build/efinix/common.py
index 5434db4ce..1b662515d 100644
--- a/litex/build/efinix/common.py
+++ b/litex/build/efinix/common.py
@@ -88,13 +88,7 @@ class EfinixTristateImpl(Module):
             }
 
             platform.toolchain.ifacewriter.blocks.append(block)
-
-        # Exclude IO.
-        if isinstance(io, Signal):
-            exclude_io = io
-        else:
-            exclude_io = platform.get_pin_name(io[0], without_index=True)
-        platform.toolchain.excluded_ios.append(exclude_io)
+        platform.toolchain.excluded_ios.append(platform.get_pin(io))
 
 class EfinixTristate(Module):
     @staticmethod
@@ -144,7 +138,7 @@ class EfinixDDROutputImpl(Module):
             "drive_strength"    : 4 # FIXME: Get it from constraints.
         }
         platform.toolchain.ifacewriter.blocks.append(block)
-        # FIXME: Integrate IO exclusion.
+        platform.toolchain.excluded_ios.append(platform.get_pin(o))
 
 class EfinixDDROutput:
     @staticmethod
@@ -174,7 +168,7 @@ class EfinixDDRInputImpl(Module):
             "is_inclk_inverted" : False
         }
         platform.toolchain.ifacewriter.blocks.append(block)
-        # FIXME: Integrate IO exclusion.
+        platform.toolchain.excluded_ios.append(platform.get_pin(i))
 
 class EfinixDDRInput:
     @staticmethod
diff --git a/litex/build/efinix/platform.py b/litex/build/efinix/platform.py
index 2ca80593a..a38095da9 100644
--- a/litex/build/efinix/platform.py
+++ b/litex/build/efinix/platform.py
@@ -119,6 +119,11 @@ class EfinixPlatform(GenericPlatform):
                     return ret
         return None
 
+    def get_pin(self, sig):
+        while isinstance(sig, _Slice) and hasattr(sig, "value"):
+            sig = sig.value
+        return sig
+
     def get_pin_name(self, sig, without_index=False):
         if sig is None:
             return None