From e0741a2097e32b3811cf1303c9a3bc50456a9503 Mon Sep 17 00:00:00 2001
From: "Wesley W. Terpstra" <wesley@sifive.com>
Date: Fri, 2 Jun 2017 16:30:16 -0700
Subject: [PATCH] axi4: don't map unused masters into TL source ID space

---
 src/main/scala/uncore/axi4/ToTL.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/scala/uncore/axi4/ToTL.scala b/src/main/scala/uncore/axi4/ToTL.scala
index 90d5dae7..7f219052 100644
--- a/src/main/scala/uncore/axi4/ToTL.scala
+++ b/src/main/scala/uncore/axi4/ToTL.scala
@@ -13,7 +13,7 @@ case class AXI4ToTLNode() extends MixedAdapterNode(AXI4Imp, TLImp)(
     masters.foreach { m => require (m.maxFlight.isDefined, "AXI4 must include a transaction maximum per ID to convert to TL") }
     val maxFlight = masters.map(_.maxFlight.get).max
     TLClientPortParameters(
-      clients = masters.flatMap { m =>
+      clients = masters.filter(_.maxFlight != Some(0)).flatMap { m =>
         for (id <- m.id.start until m.id.end)
           yield TLClientParameters(
             name        = s"${m.name} ID#${id}",