add SimpleNic

src/main/scala/example/Configs.scala

@@ -33,6 +33,14 @@ class WithSimBlockDevice extends Config((site, here, up) => {
   }
 })
 
+class WithSimpleNIC extends Config((site, here, up) => {
+  case BuildTop => (p: Parameters) => {
+    val top = Module(LazyModule(new ExampleTopWithSimpleNIC()(p)).module)
+    top.connectNicLoopback()
+    top
+  }
+})
+
 class BaseExampleConfig extends Config(
   new WithoutTLMonitors ++
   new WithSerialAdapter ++
@@ -52,5 +60,8 @@ class SimBlockDeviceConfig extends Config(
 class BlockDeviceModelConfig extends Config(
   new WithBlockDevice ++ new WithBlockDeviceModel ++ new BaseExampleConfig)
 
+class SimpleNICConfig extends Config(
+  new WithSimpleNIC ++ new BaseExampleConfig)
+
 class WithTwoTrackers extends WithNBlockDeviceTrackers(2)
 class WithFourTrackers extends WithNBlockDeviceTrackers(4)

src/main/scala/example/Top.scala

@@ -41,3 +41,12 @@ class ExampleTopWithBlockDevice(implicit p: Parameters) extends ExampleTop
 class ExampleTopWithBlockDeviceModule(l: ExampleTopWithBlockDevice)
   extends ExampleTopModule(l)
   with HasPeripheryBlockDeviceModuleImp
+
+class ExampleTopWithSimpleNIC(implicit p: Parameters) extends ExampleTop
+    with HasPeripherySimpleNIC {
+  override lazy val module = new ExampleTopWithSimpleNICModule(this)
+}
+
+class ExampleTopWithSimpleNICModule(outer: ExampleTopWithSimpleNIC)
+  extends ExampleTopModule(outer)
+  with HasPeripherySimpleNICModuleImp