From f9d8fff5910b2607d87b1950a49123124bc785bf Mon Sep 17 00:00:00 2001
From: Dirk Eibach <dirk.eibach@gmx.de>
Date: Mon, 17 Feb 2025 22:13:09 +0100
Subject: [PATCH] Add serdes resources to Versa ECP5 boards

---
 amaranth_boards/versa_ecp5.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/amaranth_boards/versa_ecp5.py b/amaranth_boards/versa_ecp5.py
index 5fb0a056..67c59657 100644
--- a/amaranth_boards/versa_ecp5.py
+++ b/amaranth_boards/versa_ecp5.py
@@ -23,6 +23,16 @@ class VersaECP5Platform(LatticeECP5Platform):
         Resource("pclk", 0, DiffPairs("A4", "A5", dir="i"),
                  Attrs(IO_TYPE="LVDS")),
 
+        # SerDes connections.
+        Resource("serdes", 0,
+            Subsignal("rx", DiffPairs("Y5", "Y6")),
+            Subsignal("tx", DiffPairs("W4", "W5")),
+        ),
+        Resource("serdes", 1,
+            Subsignal("rx", DiffPairs("Y8", "Y7")),
+            Subsignal("tx", DiffPairs("W8", "W9")),
+        ),
+
         *LEDResources(pins="E16 D17 D18 E18 F17 F18 E17 F16", invert=True,
                       attrs=Attrs(IO_TYPE="LVCMOS25")),