frontend/etherbone: Add LiteEthLastHandler to LiteEthEtherbonePacketR…

…X for 64-bit data-width support.

liteeth/frontend/etherbone.py

@@ -1,7 +1,7 @@
 #
 # This file is part of LiteEth.
 #
-# Copyright (c) 2015-2023 Florent Kermarrec <[email protected]>
+# Copyright (c) 2015-2024 Florent Kermarrec <[email protected]>
 # SPDX-License-Identifier: BSD-2-Clause
 
 """
@@ -22,6 +22,8 @@
 from litex.soc.interconnect import wishbone
 from litex.soc.interconnect.packet import *
 
+from liteeth.mac.common import LiteEthLastHandler
+
 from liteeth.packet import Depacketizer, Packetizer
 
 # Etherbone Packet ---------------------------------------------------------------------------------
@@ -84,8 +86,13 @@ def __init__(self):
 
         # # #
 
+        self.last_handler = LiteEthLastHandler(eth_udp_user_description(32))
+
         self.depacketizer = depacketizer = LiteEthEtherbonePacketDepacketizer()
-        self.comb += sink.connect(depacketizer.sink)
+        self.comb += [
+            sink.connect(self.last_handler.sink),
+            self.last_handler.source.connect(depacketizer.sink),
+        ]
 
         self.fsm = fsm = FSM(reset_state="IDLE")
         fsm.act("IDLE",