src/main/scala/devices/mockaon/MockAONPeriphery.scala

   1 // See LICENSE for license details.
   2 package sifive.blocks.devices.mockaon
   3
   4 import Chisel._
   5 import config.Field
   6 import coreplex.CoreplexRISCVPlatform
   7 import diplomacy.LazyModule
   8 import rocketchip.{
   9   HasTopLevelNetworks,
  10   HasTopLevelNetworksBundle,
  11   HasTopLevelNetworksModule
  12 }
  13 import uncore.tilelink2.{IntXing, TLAsyncCrossingSource, TLFragmenter}
  14
  15 case object PeripheryMockAONKey extends Field[MockAONParams]
  16
  17 trait HasPeripheryMockAON extends HasTopLevelNetworks {
  18   val coreplex: CoreplexRISCVPlatform
  19
  20   // We override the clock & Reset here so that all synchronizers, etc
  21   // are in the proper clock domain.
  22   val mockAONParams= p(PeripheryMockAONKey)
  23   val aon = LazyModule(new MockAONWrapper(peripheryBusBytes, mockAONParams))
  24   val aon_int = LazyModule(new IntXing)
  25   aon.node := TLAsyncCrossingSource()(TLFragmenter(peripheryBusBytes, cacheBlockBytes)(peripheryBus.node))
  26   aon_int.intnode := aon.intnode
  27   intBus.intnode := aon_int.intnode
  28 }
  29
  30 trait HasPeripheryMockAONBundle extends HasTopLevelNetworksBundle {
  31   val aon = new MockAONWrapperBundle()
  32 }
  33
  34 trait HasPeripheryMockAONModule extends HasTopLevelNetworksModule {
  35   val outer: HasPeripheryMockAON
  36   val io: HasPeripheryMockAONBundle
  37
  38   io.aon <> outer.aon.module.io
  39
  40   // Explicit clock & reset are unused in MockAONWrapper.
  41   // Tie  to check this assumption.
  42   outer.aon.module.clock := Bool(false).asClock
  43   outer.aon.module.reset := Bool(true)
  44
  45   outer.coreplex.module.io.rtcToggle := outer.aon.module.io.rtc.asUInt.toBool
  46
  47   outer.aon.module.io.ndreset := outer.coreplex.module.io.ndreset
  48 }