litescope/frontend/wishbone: add support for packetized mode

misoclib/tools/litescope/frontend/wishbone.py

@@ -139,3 +139,11 @@ class LiteScopeWishboneBridge(Module):
                 )
             )
         )
+
+        if phy.sink.description.packetized:
+            self.comb += [
+                phy.sink.sop.eq((byte_counter.value == 0) & (word_counter.value == 0)),
+                phy.sink.eop.eq((byte_counter.value == 3) & (word_counter.value == (length-1)))
+            ]
+            if hasattr(phy.sink, "length"):
+                self.comb += phy.sink.length.eq(4*length)