From a17753983a8b92b258d5cde9e32c2ba102fbe981 Mon Sep 17 00:00:00 2001
From: "Wesley W. Terpstra" <wesley@sifive.com>
Date: Fri, 25 Nov 2016 19:38:24 -0800
Subject: [PATCH] coreplex: allow legacy devices to override the config string
 (#458)

---
 src/main/scala/coreplex/RISCVPlatform.scala | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/scala/coreplex/RISCVPlatform.scala b/src/main/scala/coreplex/RISCVPlatform.scala
index 804854d4..374ef4ee 100644
--- a/src/main/scala/coreplex/RISCVPlatform.scala
+++ b/src/main/scala/coreplex/RISCVPlatform.scala
@@ -29,7 +29,9 @@ trait CoreplexRISCVPlatform extends CoreplexNetwork {
 
   lazy val configString = {
     val managers = l1tol2.node.edgesIn(0).manager.managers
-    rocketchip.GenerateConfigString(p, clint, plic, managers)
+    // Use the existing config string if the user overrode it
+    ConfigStringOutput.contents.getOrElse(
+      rocketchip.GenerateConfigString(p, clint, plic, managers))
   }
 }