Avoid need for cloneType

uncore/src/main/scala/prci.scala

@@ -11,15 +11,18 @@ import cde.{Parameters, Field}
 /** Number of tiles */
 case object NTiles extends Field[Int]
 
+class PRCIInterrupts extends Bundle {
+  val mtip = Bool()
+  val meip = Bool()
+  val seip = Bool()
+  val debug = Bool()
+}
+
 class PRCITileIO(implicit p: Parameters) extends Bundle {
   val reset = Bool(OUTPUT)
   val id = UInt(OUTPUT, log2Up(p(NTiles)))
-  val interrupts = new Bundle {
-    val mtip = Bool()
+  val interrupts = new PRCIInterrupts {
     val msip = Bool()
-    val meip = Bool()
-    val seip = Bool()
-    val debug = Bool()
   }.asOutput
 
   override def cloneType: this.type = new PRCITileIO().asInstanceOf[this.type]
@@ -30,12 +33,7 @@ class PRCI(implicit val p: Parameters) extends Module
     with HasTileLinkParameters
     with HasAddrMapParameters {
   val io = new Bundle {
-    val interrupts = Vec(p(NTiles), new Bundle {
-      val mtip = Bool()
-      val meip = Bool()
-      val seip = Bool()
-      val debug = Bool()
-    }).asInput
+    val interrupts = Vec(p(NTiles), new PRCIInterrupts).asInput
     val tl = new ClientUncachedTileLinkIO().flip
     val tiles = Vec(p(NTiles), new PRCITileIO)
   }