tilelink2 broadcast: make it controlled via Config

src/main/scala/groundtest/Configs.scala

@@ -79,7 +79,7 @@ class WithGroundTest extends Config(
         coherencePolicy = (
           if (useMEI) new MEICoherence(site(L2DirectoryRepresentation))
           else new MESICoherence(site(L2DirectoryRepresentation))),
-        nManagers = site(NBanksPerMemoryChannel)*site(NMemoryChannels) + 1,
+        nManagers = site(BankedL2Config).nBanks + 1,
         nCachingClients = 1,
         nCachelessClients = 1,
         maxClientXacts = ((site(DCacheKey).nMSHRs + 1) +:
@@ -90,8 +90,6 @@ class WithGroundTest extends Config(
         dataBeats = dataBeats,
         dataBits = site(CacheBlockBytes)*8)
     }
-    case BuildExampleTop =>
-      (p: Parameters) => LazyModule(new ExampleTopWithTestRAM(new GroundTestCoreplex()(_))(p))
     case FPUKey => None
     case UseAtomics => false
     case UseCompressed => false

src/main/scala/groundtest/Coreplex.scala

@@ -9,8 +9,7 @@ import uncore.tilelink2._
 import rocket.TileId
 import uncore.tilelink.TLId
 
-class GroundTestCoreplex(implicit p: Parameters) extends BaseCoreplex
-    with BroadcastL2 {
+class GroundTestCoreplex(implicit p: Parameters) extends BaseCoreplex {
   val tiles = List.tabulate(p(NTiles)) { i =>
     LazyModule(new GroundTestTile()(p.alterPartial({
       case TLId => "L1toL2"