Initial pass at HarnessBinders for Arty.

fpga/src/main/scala/arty/DigitalTop.scala

@@ -0,0 +1,21 @@
+package chipyard.fpga.arty
+
+import chisel3._
+
+import freechips.rocketchip.subsystem._
+import freechips.rocketchip.system._
+import freechips.rocketchip.config.Parameters
+import freechips.rocketchip.devices.tilelink._
+
+import chipyard.{DigitalTop, DigitalTopModule}
+
+// ------------------------------------
+// E300 DigitalTop
+// ------------------------------------
+
+class E300DigitalTop(implicit p: Parameters) extends DigitalTop
+{
+  override lazy val module = new E300DigitalTopModule(this)
+}
+
+class E300DigitalTopModule[+L <: E300DigitalTop](l: L) extends DigitalTopModule(l)