diff --git a/src/main/scala/coreplex/BaseCoreplex.scala b/src/main/scala/coreplex/BaseCoreplex.scala
index 7896aaff..9a246271 100644
--- a/src/main/scala/coreplex/BaseCoreplex.scala
+++ b/src/main/scala/coreplex/BaseCoreplex.scala
@@ -31,7 +31,8 @@ case object BroadcastConfig extends Field[BroadcastConfig]
 case class BankedL2Config(
   nMemoryChannels:  Int = 1,
   nBanksPerChannel: Int = 1,
-  coherenceManager: Parameters => (TLInwardNode, TLOutwardNode) = { case p =>
+  coherenceManager: Parameters => (TLInwardNode, TLOutwardNode) = { case q =>
+    implicit val p = q
     val BroadcastConfig(nTrackers, bufferless) = p(BroadcastConfig)
     val bh = LazyModule(new TLBroadcast(p(CacheBlockBytes), nTrackers, bufferless))
     (bh.node, TLWidthWidget(p(L1toL2Config).beatBytes)(bh.node))
@@ -54,9 +55,10 @@ trait HasCoreplexParameters {
 
 case class CoreplexParameters(implicit val p: Parameters) extends HasCoreplexParameters
 
-abstract class BareCoreplex(implicit val p: Parameters) extends LazyModule
-abstract class BareCoreplexBundle[+L <: BareCoreplex](_outer: L) extends Bundle {
+abstract class BareCoreplex(implicit p: Parameters) extends LazyModule
+abstract class BareCoreplexBundle[+L <: BareCoreplex](_outer: L) extends GenericParameterizedBundle(_outer) {
   val outer = _outer
+  implicit val p = outer.p
 }
 abstract class BareCoreplexModule[+L <: BareCoreplex, +B <: BareCoreplexBundle[L]](_outer: L, _io: () => B) extends LazyModuleImp(_outer) {
   val outer = _outer
@@ -96,7 +98,6 @@ trait CoreplexNetwork extends HasCoreplexParameters {
 trait CoreplexNetworkBundle extends HasCoreplexParameters {
   val outer: CoreplexNetwork
 
-  implicit val p = outer.p
   val mmio = outer.mmio.bundleOut
   val interrupts = outer.mmioInt.bundleIn
 }
@@ -105,8 +106,6 @@ trait CoreplexNetworkModule extends HasCoreplexParameters {
   val outer: CoreplexNetwork
   val io: CoreplexNetworkBundle
 
-  implicit val p = outer.p
-
   println("\nGenerated Address Map")
   for (manager <- outer.l1tol2.node.edgesIn(0).manager.managers) {
     val prot = (if (manager.supportsGet)     "R" else "") +
diff --git a/src/main/scala/coreplex/Configs.scala b/src/main/scala/coreplex/Configs.scala
index a3b63b9d..fb658c8a 100644
--- a/src/main/scala/coreplex/Configs.scala
+++ b/src/main/scala/coreplex/Configs.scala
@@ -207,7 +207,7 @@ class WithStatelessBridge extends Config(
   (pname,site,here,up) => pname match {
 /* !!! FIXME
     case BankedL2Config => up(BankedL2Config, site).copy(coherenceManager = { case (_, _) =>
-      val pass = LazyModule(new TLBuffer(0))
+      val pass = LazyModule(new TLBuffer(0)(site))
       (pass.node, pass.node)
     })
 */
diff --git a/src/main/scala/diplomacy/LazyModule.scala b/src/main/scala/diplomacy/LazyModule.scala
index 3b7de281..d97bbf7f 100644
--- a/src/main/scala/diplomacy/LazyModule.scala
+++ b/src/main/scala/diplomacy/LazyModule.scala
@@ -3,9 +3,10 @@
 package diplomacy
 
 import Chisel._
+import config._
 import chisel3.internal.sourceinfo.{SourceInfo, SourceLine, UnlocatableSourceInfo}
 
-abstract class LazyModule
+abstract class LazyModule()(implicit val p: Parameters)
 {
   protected[diplomacy] var bindings = List[() => Unit]()
   protected[diplomacy] var children = List[LazyModule]()
@@ -112,4 +113,5 @@ abstract class LazyModuleImp(outer: LazyModule) extends Module
   suggestName(outer.instanceName)
 
   outer.instantiate()
+  implicit val p = outer.p
 }
diff --git a/src/main/scala/diplomacy/Nodes.scala b/src/main/scala/diplomacy/Nodes.scala
index bf001526..c01febf7 100644
--- a/src/main/scala/diplomacy/Nodes.scala
+++ b/src/main/scala/diplomacy/Nodes.scala
@@ -3,6 +3,7 @@
 package diplomacy
 
 import Chisel._
+import config._
 import scala.collection.mutable.ListBuffer
 import chisel3.internal.sourceinfo.SourceInfo
 
@@ -15,7 +16,7 @@ trait InwardNodeImp[DI, UI, EI, BI <: Data]
   def edgeI(pd: DI, pu: UI): EI
   def bundleI(ei: Seq[EI]): Vec[BI]
   def colour: String
-  def connect(bo: => BI, bi: => BI, e: => EI)(implicit sourceInfo: SourceInfo): (Option[LazyModule], () => Unit)
+  def connect(bo: => BI, bi: => BI, e: => EI)(implicit p: Parameters, sourceInfo: SourceInfo): (Option[LazyModule], () => Unit)
 
   // optional methods to track node graph
   def mixI(pu: UI, node: InwardNode[DI, UI, BI]): UI = pu // insert node into parameters
@@ -68,8 +69,8 @@ case class NodeHandle[DI, UI, BI <: Data, DO, UO, BO <: Data]
 trait InwardNodeHandle[DI, UI, BI <: Data]
 {
   val inward: InwardNode[DI, UI, BI]
-  def := (h: OutwardNodeHandle[DI, UI, BI])(implicit sourceInfo: SourceInfo): Option[LazyModule] =
-    inward.:=(h)(sourceInfo)
+  def := (h: OutwardNodeHandle[DI, UI, BI])(implicit p: Parameters, sourceInfo: SourceInfo): Option[LazyModule] =
+    inward.:=(h)(p, sourceInfo)
 }
 
 trait InwardNode[DI, UI, BI <: Data] extends BaseNode with InwardNodeHandle[DI, UI, BI]
@@ -174,7 +175,7 @@ class MixedNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
   lazy val bundleIn  = wireI(flipI(inner.bundleI(edgesIn)))
 
   // connects the outward part of a node with the inward part of this node
-  override def := (h: OutwardNodeHandle[DI, UI, BI])(implicit sourceInfo: SourceInfo): Option[LazyModule] = {
+  override def := (h: OutwardNodeHandle[DI, UI, BI])(implicit p: Parameters, sourceInfo: SourceInfo): Option[LazyModule] = {
     val x = this // x := y
     val y = h.outward
     val info = sourceLine(sourceInfo, " at ", "")
diff --git a/src/main/scala/groundtest/TestHarness.scala b/src/main/scala/groundtest/TestHarness.scala
index 906c973a..a7f523fe 100644
--- a/src/main/scala/groundtest/TestHarness.scala
+++ b/src/main/scala/groundtest/TestHarness.scala
@@ -8,11 +8,10 @@ import config._
 import rocketchip._
 import util._
 
-class TestHarness(q: Parameters) extends Module {
+class TestHarness(implicit p: Parameters) extends Module {
   val io = new Bundle {
     val success = Bool(OUTPUT)
   }
-  implicit val p = q
 
   val dut = Module(LazyModule(new GroundTestTop).module)
   io.success := dut.io.success
diff --git a/src/main/scala/groundtest/Tile.scala b/src/main/scala/groundtest/Tile.scala
index 24676fe5..c1f22788 100644
--- a/src/main/scala/groundtest/Tile.scala
+++ b/src/main/scala/groundtest/Tile.scala
@@ -102,7 +102,7 @@ abstract class GroundTest(implicit val p: Parameters) extends Module
   val io = new GroundTestIO
 }
 
-class GroundTestTile(implicit val p: Parameters) extends LazyModule with HasGroundTestParameters {
+class GroundTestTile(implicit p: Parameters) extends LazyModule with HasGroundTestParameters {
   val dcacheParams = p.alterPartial {
     case CacheName => CacheName("L1D")
     case rocket.TLCacheEdge => cachedOut.edgesOut(0)
diff --git a/src/main/scala/rocket/Dcache.scala b/src/main/scala/rocket/Dcache.scala
index 60c7ea0e..c3e7cdf5 100644
--- a/src/main/scala/rocket/Dcache.scala
+++ b/src/main/scala/rocket/Dcache.scala
@@ -42,7 +42,7 @@ class DCache(cfg: DCacheConfig, val scratch: () => Option[AddressSet])(implicit
   override lazy val module = new DCacheModule(this) 
 }
 
-class DCacheModule(outer: DCache)(implicit p: Parameters) extends HellaCacheModule(outer)(p) {
+class DCacheModule(outer: DCache) extends HellaCacheModule(outer) {
 
   val maxUncachedInFlight = cfg.nMMIOs
 
diff --git a/src/main/scala/rocket/HellaCache.scala b/src/main/scala/rocket/HellaCache.scala
index d43d5e12..542ed4e1 100644
--- a/src/main/scala/rocket/HellaCache.scala
+++ b/src/main/scala/rocket/HellaCache.scala
@@ -129,7 +129,7 @@ class HellaCacheIO(implicit p: Parameters) extends CoreBundle()(p) {
   val ordered = Bool(INPUT)
 }
 
-abstract class HellaCache(val cfg: DCacheConfig)(implicit val p: Parameters) extends LazyModule {
+abstract class HellaCache(val cfg: DCacheConfig)(implicit p: Parameters) extends LazyModule {
   val node = TLClientNode(TLClientParameters(
     sourceId = IdRange(0, cfg.nMSHRs + cfg.nMMIOs),
     supportsProbe = TransferSizes(p(CacheBlockBytes))))
@@ -142,7 +142,7 @@ class HellaCacheBundle(outer: HellaCache)(implicit p: Parameters) extends Bundle
   val mem = outer.node.bundleOut
 }
 
-class HellaCacheModule(outer: HellaCache)(implicit val p: Parameters) extends LazyModuleImp(outer)
+class HellaCacheModule(outer: HellaCache) extends LazyModuleImp(outer)
     with HasL1HellaCacheParameters {
   implicit val cfg = outer.cfg
   val io = new HellaCacheBundle(outer)
diff --git a/src/main/scala/rocket/NBDcache.scala b/src/main/scala/rocket/NBDcache.scala
index 3b00c473..bc0409a1 100644
--- a/src/main/scala/rocket/NBDcache.scala
+++ b/src/main/scala/rocket/NBDcache.scala
@@ -675,7 +675,7 @@ class NonBlockingDCache(cfg: DCacheConfig)(implicit p: Parameters) extends Hella
   override lazy val module = new NonBlockingDCacheModule(this) 
 }
 
-class NonBlockingDCacheModule(outer: NonBlockingDCache)(implicit p: Parameters) extends HellaCacheModule(outer)(p) {
+class NonBlockingDCacheModule(outer: NonBlockingDCache) extends HellaCacheModule(outer) {
 
   require(isPow2(nWays)) // TODO: relax this
   require(p(DataScratchpadSize) == 0)
diff --git a/src/main/scala/rocket/ScratchpadSlavePort.scala b/src/main/scala/rocket/ScratchpadSlavePort.scala
index 3c0bd600..18f1c02d 100644
--- a/src/main/scala/rocket/ScratchpadSlavePort.scala
+++ b/src/main/scala/rocket/ScratchpadSlavePort.scala
@@ -11,7 +11,7 @@ import uncore.constants._
 import uncore.tilelink2._
 import uncore.util._
 
-class ScratchpadSlavePort(implicit val p: Parameters) extends LazyModule {
+class ScratchpadSlavePort(implicit p: Parameters) extends LazyModule {
   val coreDataBytes = p(XLen)/8
   val node = TLManagerNode(TLManagerPortParameters(
     Seq(TLManagerParameters(
diff --git a/src/main/scala/rocketchip/BaseTop.scala b/src/main/scala/rocketchip/BaseTop.scala
index 0fff7244..1ec84290 100644
--- a/src/main/scala/rocketchip/BaseTop.scala
+++ b/src/main/scala/rocketchip/BaseTop.scala
@@ -15,12 +15,13 @@ import rocket._
 /** Enable or disable monitoring of Diplomatic buses */
 case object TLEmitMonitors extends Field[Boolean]
 
-abstract class BareTop(implicit val p: Parameters) extends LazyModule {
+abstract class BareTop(implicit p: Parameters) extends LazyModule {
   TopModule.contents = Some(this)
 }
 
-abstract class BareTopBundle[+L <: BareTop](_outer: L) extends Bundle {
+abstract class BareTopBundle[+L <: BareTop](_outer: L) extends GenericParameterizedBundle(_outer) {
   val outer = _outer
+  implicit val p = outer.p
 }
 
 abstract class BareTopModule[+L <: BareTop, +B <: BareTopBundle[L]](_outer: L, _io: () => B) extends LazyModuleImp(_outer) {
@@ -47,13 +48,11 @@ trait TopNetwork extends HasPeripheryParameters {
 
 trait TopNetworkBundle extends HasPeripheryParameters {
   val outer: TopNetwork
-  implicit val p = outer.p
 }
 
 trait TopNetworkModule extends HasPeripheryParameters {
   val io: TopNetworkBundle
   val outer: TopNetwork
-  implicit val p = outer.p
 }
 
 /** Base Top with no Periphery */
diff --git a/src/main/scala/rocketchip/TestHarness.scala b/src/main/scala/rocketchip/TestHarness.scala
index 2bcb90de..7de32c20 100644
--- a/src/main/scala/rocketchip/TestHarness.scala
+++ b/src/main/scala/rocketchip/TestHarness.scala
@@ -9,11 +9,10 @@ import diplomacy._
 import coreplex._
 import uncore.axi4._
 
-class TestHarness(q: Parameters) extends Module {
+class TestHarness()(implicit p: Parameters) extends Module {
   val io = new Bundle {
     val success = Bool(OUTPUT)
   }
-  implicit val p = q
   val dut = Module(LazyModule(new ExampleRocketTop).module)
 
   for (int <- dut.io.interrupts(0))
diff --git a/src/main/scala/uncore/axi4/Buffer.scala b/src/main/scala/uncore/axi4/Buffer.scala
index 1b2a7300..2dcefeb4 100644
--- a/src/main/scala/uncore/axi4/Buffer.scala
+++ b/src/main/scala/uncore/axi4/Buffer.scala
@@ -4,11 +4,12 @@ package uncore.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.math.max
 
 // pipe is only used if a queue has depth = 1
-class AXI4Buffer(aw: Int = 2, w: Int = 2, b: Int = 2, ar: Int = 2, r: Int = 2, pipe: Boolean = true) extends LazyModule
+class AXI4Buffer(aw: Int = 2, w: Int = 2, b: Int = 2, ar: Int = 2, r: Int = 2, pipe: Boolean = true)(implicit p: Parameters) extends LazyModule
 {
   require (aw >= 0)
   require (w  >= 0)
@@ -37,12 +38,12 @@ class AXI4Buffer(aw: Int = 2, w: Int = 2, b: Int = 2, ar: Int = 2, r: Int = 2, p
 object AXI4Buffer
 {
   // applied to the AXI4 source node; y.node := AXI4Buffer(x.node)
-  def apply()                               (x: AXI4OutwardNode)(implicit sourceInfo: SourceInfo): AXI4OutwardNode = apply(2)(x)
-  def apply(entries: Int)                   (x: AXI4OutwardNode)(implicit sourceInfo: SourceInfo): AXI4OutwardNode = apply(entries, true)(x)
-  def apply(entries: Int, pipe: Boolean)    (x: AXI4OutwardNode)(implicit sourceInfo: SourceInfo): AXI4OutwardNode = apply(entries, entries, pipe)(x)
-  def apply(aw: Int, br: Int)               (x: AXI4OutwardNode)(implicit sourceInfo: SourceInfo): AXI4OutwardNode = apply(aw, br, true)(x)
-  def apply(aw: Int, br: Int, pipe: Boolean)(x: AXI4OutwardNode)(implicit sourceInfo: SourceInfo): AXI4OutwardNode = apply(aw, aw, br, aw, br, pipe)(x)
-  def apply(aw: Int, w: Int, b: Int, ar: Int, r: Int, pipe: Boolean = true)(x: AXI4OutwardNode)(implicit sourceInfo: SourceInfo): AXI4OutwardNode = {
+  def apply()                               (x: AXI4OutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): AXI4OutwardNode = apply(2)(x)
+  def apply(entries: Int)                   (x: AXI4OutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): AXI4OutwardNode = apply(entries, true)(x)
+  def apply(entries: Int, pipe: Boolean)    (x: AXI4OutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): AXI4OutwardNode = apply(entries, entries, pipe)(x)
+  def apply(aw: Int, br: Int)               (x: AXI4OutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): AXI4OutwardNode = apply(aw, br, true)(x)
+  def apply(aw: Int, br: Int, pipe: Boolean)(x: AXI4OutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): AXI4OutwardNode = apply(aw, aw, br, aw, br, pipe)(x)
+  def apply(aw: Int, w: Int, b: Int, ar: Int, r: Int, pipe: Boolean = true)(x: AXI4OutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): AXI4OutwardNode = {
     val buffer = LazyModule(new AXI4Buffer(aw, w, b, ar, r, pipe))
     buffer.node := x
     buffer.node
diff --git a/src/main/scala/uncore/axi4/Fragmenter.scala b/src/main/scala/uncore/axi4/Fragmenter.scala
index ce29325a..f6cdf372 100644
--- a/src/main/scala/uncore/axi4/Fragmenter.scala
+++ b/src/main/scala/uncore/axi4/Fragmenter.scala
@@ -5,12 +5,13 @@ package uncore.axi4
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
 import chisel3.util.IrrevocableIO
+import config._
 import diplomacy._
 import scala.math.{min,max}
 import uncore.tilelink2.{leftOR, rightOR, UIntToOH1, OH1ToOH}
 
 // lite: masters all use only one ID => reads will not be interleaved
-class AXI4Fragmenter(lite: Boolean = false, maxInFlight: => Int = 32, combinational: Boolean = true) extends LazyModule
+class AXI4Fragmenter(lite: Boolean = false, maxInFlight: => Int = 32, combinational: Boolean = true)(implicit p: Parameters) extends LazyModule
 {
   val maxBeats = 1 << AXI4Parameters.lenBits
   def expandTransfer(x: TransferSizes, beatBytes: Int, alignment: BigInt) =
@@ -287,7 +288,7 @@ class AXI4FragmenterSideband(maxInFlight: Int, flow: Boolean = false) extends Mo
 object AXI4Fragmenter
 {
   // applied to the AXI4 source node; y.node := AXI4Fragmenter()(x.node)
-  def apply(lite: Boolean = false, maxInFlight: => Int = 32, combinational: Boolean = true)(x: AXI4OutwardNode)(implicit sourceInfo: SourceInfo): AXI4OutwardNode = {
+  def apply(lite: Boolean = false, maxInFlight: => Int = 32, combinational: Boolean = true)(x: AXI4OutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): AXI4OutwardNode = {
     val fragmenter = LazyModule(new AXI4Fragmenter(lite, maxInFlight, combinational))
     fragmenter.node := x
     fragmenter.node
diff --git a/src/main/scala/uncore/axi4/Nodes.scala b/src/main/scala/uncore/axi4/Nodes.scala
index 80397aa0..7d22b666 100644
--- a/src/main/scala/uncore/axi4/Nodes.scala
+++ b/src/main/scala/uncore/axi4/Nodes.scala
@@ -4,6 +4,7 @@ package uncore.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 
 object AXI4Imp extends NodeImp[AXI4MasterPortParameters, AXI4SlavePortParameters, AXI4EdgeParameters, AXI4EdgeParameters, AXI4Bundle]
@@ -23,7 +24,7 @@ object AXI4Imp extends NodeImp[AXI4MasterPortParameters, AXI4SlavePortParameters
   override def labelI(ei: AXI4EdgeParameters) = (ei.slave.beatBytes * 8).toString
   override def labelO(eo: AXI4EdgeParameters) = (eo.slave.beatBytes * 8).toString
 
-  def connect(bo: => AXI4Bundle, bi: => AXI4Bundle, ei: => AXI4EdgeParameters)(implicit sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
+  def connect(bo: => AXI4Bundle, bi: => AXI4Bundle, ei: => AXI4EdgeParameters)(implicit p: Parameters, sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
     (None, () => { bi <> bo })
   }
 
diff --git a/src/main/scala/uncore/axi4/Parameters.scala b/src/main/scala/uncore/axi4/Parameters.scala
index 95c051b0..12e7b277 100644
--- a/src/main/scala/uncore/axi4/Parameters.scala
+++ b/src/main/scala/uncore/axi4/Parameters.scala
@@ -3,6 +3,7 @@
 package uncore.axi4
 
 import Chisel._
+import config._
 import diplomacy._
 import scala.math.max
 
diff --git a/src/main/scala/uncore/axi4/RegisterRouter.scala b/src/main/scala/uncore/axi4/RegisterRouter.scala
index fabf4722..df78c647 100644
--- a/src/main/scala/uncore/axi4/RegisterRouter.scala
+++ b/src/main/scala/uncore/axi4/RegisterRouter.scala
@@ -3,6 +3,7 @@
 package uncore.axi4
 
 import Chisel._
+import config._
 import diplomacy._
 import regmapper._
 import scala.math.{min,max}
@@ -77,16 +78,17 @@ object AXI4RegisterNode
 // These convenience methods below combine to make it possible to create a AXI4
 // register mapped device from a totally abstract register mapped device.
 
-abstract class AXI4RegisterRouterBase(address: AddressSet, interrupts: Int, concurrency: Int, beatBytes: Int, undefZero: Boolean, executable: Boolean) extends LazyModule
+abstract class AXI4RegisterRouterBase(address: AddressSet, interrupts: Int, concurrency: Int, beatBytes: Int, undefZero: Boolean, executable: Boolean)(implicit p: Parameters) extends LazyModule
 {
   val node = AXI4RegisterNode(address, concurrency, beatBytes, undefZero, executable)
   val intnode = uncore.tilelink2.IntSourceNode(interrupts)
 }
 
-case class AXI4RegBundleArg(interrupts: Vec[Vec[Bool]], in: Vec[AXI4Bundle])
+case class AXI4RegBundleArg(interrupts: Vec[Vec[Bool]], in: Vec[AXI4Bundle])(implicit val p: Parameters)
 
 class AXI4RegBundleBase(arg: AXI4RegBundleArg) extends Bundle
 {
+  implicit val p = arg.p
   val interrupts = arg.interrupts
   val in = arg.in
 }
@@ -104,7 +106,7 @@ class AXI4RegModule[P, B <: AXI4RegBundleBase](val params: P, bundleBuilder: =>
 class AXI4RegisterRouter[B <: AXI4RegBundleBase, M <: LazyModuleImp]
    (val base: BigInt, val interrupts: Int = 0, val size: BigInt = 4096, val concurrency: Int = 0, val beatBytes: Int = 4, undefZero: Boolean = true, executable: Boolean = false)
    (bundleBuilder: AXI4RegBundleArg => B)
-   (moduleBuilder: (=> B, AXI4RegisterRouterBase) => M)
+   (moduleBuilder: (=> B, AXI4RegisterRouterBase) => M)(implicit p: Parameters)
   extends AXI4RegisterRouterBase(AddressSet(base, size-1), interrupts, concurrency, beatBytes, undefZero, executable)
 {
   require (isPow2(size))
diff --git a/src/main/scala/uncore/axi4/SRAM.scala b/src/main/scala/uncore/axi4/SRAM.scala
index eac4b012..cc04c9fc 100644
--- a/src/main/scala/uncore/axi4/SRAM.scala
+++ b/src/main/scala/uncore/axi4/SRAM.scala
@@ -3,9 +3,10 @@
 package uncore.axi4
 
 import Chisel._
+import config._
 import diplomacy._
 
-class AXI4RAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4) extends LazyModule
+class AXI4RAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4)(implicit p: Parameters) extends LazyModule
 {
   val node = AXI4SlaveNode(AXI4SlavePortParameters(
     Seq(AXI4SlaveParameters(
diff --git a/src/main/scala/uncore/axi4/Test.scala b/src/main/scala/uncore/axi4/Test.scala
index c0b3dfc3..2652b156 100644
--- a/src/main/scala/uncore/axi4/Test.scala
+++ b/src/main/scala/uncore/axi4/Test.scala
@@ -3,19 +3,20 @@
 package uncore.axi4
 
 import Chisel._
+import config._
 import diplomacy._
 import uncore.tilelink2._
 import unittest._
 
-class RRTest0(address: BigInt) extends AXI4RegisterRouter(address, 0, 32, 0, 4)(
+class RRTest0(address: BigInt)(implicit p: Parameters) extends AXI4RegisterRouter(address, 0, 32, 0, 4)(
   new AXI4RegBundle((), _)    with RRTest0Bundle)(
   new AXI4RegModule((), _, _) with RRTest0Module)
 
-class RRTest1(address: BigInt) extends AXI4RegisterRouter(address, 0, 32, 6, 4, false)(
+class RRTest1(address: BigInt)(implicit p: Parameters) extends AXI4RegisterRouter(address, 0, 32, 6, 4, false)(
   new AXI4RegBundle((), _)    with RRTest1Bundle)(
   new AXI4RegModule((), _, _) with RRTest1Module)
 
-class AXI4LiteFuzzRAM extends LazyModule
+class AXI4LiteFuzzRAM()(implicit p: Parameters) extends LazyModule
 {
   val fuzz  = LazyModule(new TLFuzzer(5000))
   val model = LazyModule(new TLRAMModel("AXI4LiteFuzzRAM"))
@@ -33,12 +34,12 @@ class AXI4LiteFuzzRAM extends LazyModule
   }
 }
 
-class AXI4LiteFuzzRAMTest extends UnitTest(500000) {
+class AXI4LiteFuzzRAMTest()(implicit p: Parameters) extends UnitTest(500000) {
   val dut = Module(LazyModule(new AXI4LiteFuzzRAM).module)
   io.finished := dut.io.finished
 }
 
-class AXI4FullFuzzRAM extends LazyModule
+class AXI4FullFuzzRAM()(implicit p: Parameters) extends LazyModule
 {
   val fuzz  = LazyModule(new TLFuzzer(5000))
   val model = LazyModule(new TLRAMModel("AXI4FullFuzzRAM"))
@@ -56,12 +57,12 @@ class AXI4FullFuzzRAM extends LazyModule
   }
 }
 
-class AXI4FullFuzzRAMTest extends UnitTest(500000) {
+class AXI4FullFuzzRAMTest(implicit p: Parameters) extends UnitTest(500000) {
   val dut = Module(LazyModule(new AXI4FullFuzzRAM).module)
   io.finished := dut.io.finished
 }
 
-class AXI4FuzzMaster extends LazyModule
+class AXI4FuzzMaster()(implicit p: Parameters) extends LazyModule
 {
   val node  = AXI4OutputNode()
   val fuzz  = LazyModule(new TLFuzzer(5000))
@@ -80,7 +81,7 @@ class AXI4FuzzMaster extends LazyModule
   }
 }
 
-class AXI4FuzzSlave extends LazyModule
+class AXI4FuzzSlave()(implicit p: Parameters) extends LazyModule
 {
   val node = AXI4InputNode()
   val ram  = LazyModule(new TLRAM(AddressSet(0x0, 0xfff)))
@@ -94,7 +95,7 @@ class AXI4FuzzSlave extends LazyModule
   }
 }
 
-class AXI4FuzzBridge extends LazyModule
+class AXI4FuzzBridge()(implicit p: Parameters) extends LazyModule
 {
   val master = LazyModule(new AXI4FuzzMaster)
   val slave  = LazyModule(new AXI4FuzzSlave)
@@ -106,7 +107,7 @@ class AXI4FuzzBridge extends LazyModule
   }
 }
 
-class AXI4BridgeTest extends UnitTest(500000) {
+class AXI4BridgeTest()(implicit p: Parameters) extends UnitTest(500000) {
   val dut = Module(LazyModule(new AXI4FuzzBridge).module)
   io.finished := dut.io.finished
 }
diff --git a/src/main/scala/uncore/axi4/ToTL.scala b/src/main/scala/uncore/axi4/ToTL.scala
index 72a4e3f2..6519d5c3 100644
--- a/src/main/scala/uncore/axi4/ToTL.scala
+++ b/src/main/scala/uncore/axi4/ToTL.scala
@@ -4,6 +4,7 @@ package uncore.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import uncore.tilelink2._
 
@@ -30,7 +31,7 @@ case class AXI4ToTLNode() extends MixedNode(AXI4Imp, TLImp)(
   numPO = 1 to 1,
   numPI = 1 to 1)
 
-class AXI4ToTL extends LazyModule
+class AXI4ToTL()(implicit p: Parameters) extends LazyModule
 {
   val node = AXI4ToTLNode()
 
@@ -176,7 +177,7 @@ class AXI4BundleRError(params: AXI4BundleParameters) extends AXI4BundleBase(para
 
 object AXI4ToTL
 {
-  def apply()(x: AXI4OutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply()(x: AXI4OutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val tl = LazyModule(new AXI4ToTL)
     tl.node := x
     tl.node
diff --git a/src/main/scala/uncore/devices/Debug.scala b/src/main/scala/uncore/devices/Debug.scala
index 948f6c8b..9d5a3d65 100644
--- a/src/main/scala/uncore/devices/Debug.scala
+++ b/src/main/scala/uncore/devices/Debug.scala
@@ -332,8 +332,7 @@ object ToAsyncDebugBus
 }
 
 trait HasDebugModuleParameters {
-  val params : Parameters
-  implicit val p = params
+  implicit val p: Parameters
   val cfg = p(DMKey)
 }
 
@@ -850,8 +849,8 @@ trait DebugModule extends Module with HasDebugModuleParameters with HasRegMap {
 
 class TLDebugModule(address: BigInt = 0)(implicit p: Parameters)
   extends TLRegisterRouter(address, beatBytes=p(rocket.XLen)/8, executable=true)(
-  new TLRegBundle(p, _ )    with DebugModuleBundle)(
-  new TLRegModule(p, _, _)  with DebugModule)
+  new TLRegBundle((), _ )    with DebugModuleBundle)(
+  new TLRegModule((), _, _)  with DebugModule)
 
 
 /** Synchronizers for DebugBus
diff --git a/src/main/scala/uncore/devices/Plic.scala b/src/main/scala/uncore/devices/Plic.scala
index e5a67488..25d39fa0 100644
--- a/src/main/scala/uncore/devices/Plic.scala
+++ b/src/main/scala/uncore/devices/Plic.scala
@@ -52,7 +52,7 @@ object PLICConsts
 }
 
 /** Platform-Level Interrupt Controller */
-class TLPLIC(supervisor: Boolean, maxPriorities: Int, address: BigInt = 0xC000000)(implicit val p: Parameters) extends LazyModule
+class TLPLIC(supervisor: Boolean, maxPriorities: Int, address: BigInt = 0xC000000)(implicit p: Parameters) extends LazyModule
 {
   val contextsPerHart = if (supervisor) 2 else 1
   require (maxPriorities >= 0)
diff --git a/src/main/scala/uncore/devices/Prci.scala b/src/main/scala/uncore/devices/Prci.scala
index d5c36900..6354ddda 100644
--- a/src/main/scala/uncore/devices/Prci.scala
+++ b/src/main/scala/uncore/devices/Prci.scala
@@ -32,8 +32,7 @@ object ClintConsts
 }
 
 trait MixCoreplexLocalInterrupterParameters {
-  val params: Parameters
-  implicit val p = params
+  implicit val p: Parameters
 }
 
 trait CoreplexLocalInterrupterBundle extends Bundle with MixCoreplexLocalInterrupterParameters {
@@ -83,10 +82,10 @@ trait CoreplexLocalInterrupterModule extends Module with HasRegMap with MixCorep
 
 /** Power, Reset, Clock, Interrupt */
 // Magic TL2 Incantation to create a TL2 Slave
-class CoreplexLocalInterrupter(address: BigInt = 0x02000000)(implicit val p: Parameters)
+class CoreplexLocalInterrupter(address: BigInt = 0x02000000)(implicit p: Parameters)
   extends TLRegisterRouter(address, size = ClintConsts.size, beatBytes = p(rocket.XLen)/8, undefZero = true)(
-  new TLRegBundle(p, _)    with CoreplexLocalInterrupterBundle)(
-  new TLRegModule(p, _, _) with CoreplexLocalInterrupterModule)
+  new TLRegBundle((), _)    with CoreplexLocalInterrupterBundle)(
+  new TLRegModule((), _, _) with CoreplexLocalInterrupterModule)
 {
   val globalConfigString = Seq(
     s"rtc {\n",
diff --git a/src/main/scala/uncore/devices/Rom.scala b/src/main/scala/uncore/devices/Rom.scala
index 88159dd6..4d39b75f 100644
--- a/src/main/scala/uncore/devices/Rom.scala
+++ b/src/main/scala/uncore/devices/Rom.scala
@@ -12,7 +12,7 @@ import uncore.tilelink2._
 import uncore.util._
 import config._
 
-class TLROM(val base: BigInt, val size: Int, contentsDelayed: => Seq[Byte], executable: Boolean = true, beatBytes: Int = 4) extends LazyModule
+class TLROM(val base: BigInt, val size: Int, contentsDelayed: => Seq[Byte], executable: Boolean = true, beatBytes: Int = 4)(implicit p: Parameters) extends LazyModule
 {
   val node = TLManagerNode(beatBytes, TLManagerParameters(
     address     = List(AddressSet(base, size-1)),
diff --git a/src/main/scala/uncore/tilelink2/AtomicAutomata.scala b/src/main/scala/uncore/tilelink2/AtomicAutomata.scala
index 6a8d0da8..667188b5 100644
--- a/src/main/scala/uncore/tilelink2/AtomicAutomata.scala
+++ b/src/main/scala/uncore/tilelink2/AtomicAutomata.scala
@@ -4,12 +4,13 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.math.{min,max}
 
 // Ensures that all downstream RW managers support Atomic operationss.
 // If !passthrough, intercept all Atomics. Otherwise, only intercept those unsupported downstream.
-class TLAtomicAutomata(logical: Boolean = true, arithmetic: Boolean = true, concurrency: Int = 1, passthrough: Boolean = true) extends LazyModule
+class TLAtomicAutomata(logical: Boolean = true, arithmetic: Boolean = true, concurrency: Int = 1, passthrough: Boolean = true)(implicit p: Parameters) extends LazyModule
 {
   require (concurrency >= 1)
 
@@ -278,7 +279,7 @@ class TLAtomicAutomata(logical: Boolean = true, arithmetic: Boolean = true, conc
 object TLAtomicAutomata
 {
   // applied to the TL source node; y.node := TLAtomicAutomata(x.node)
-  def apply(logical: Boolean = true, arithmetic: Boolean = true, concurrency: Int = 1, passthrough: Boolean = true)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply(logical: Boolean = true, arithmetic: Boolean = true, concurrency: Int = 1, passthrough: Boolean = true)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val atomics = LazyModule(new TLAtomicAutomata(logical, arithmetic, concurrency, passthrough))
     atomics.node := x
     atomics.node
@@ -290,7 +291,7 @@ import unittest._
 
 //TODO ensure handler will pass through operations to clients that can handle them themselves
 
-class TLRAMAtomicAutomata() extends LazyModule {
+class TLRAMAtomicAutomata()(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(5000))
   val model = LazyModule(new TLRAMModel)
   val ram  = LazyModule(new TLRAM(AddressSet(0x0, 0x3ff)))
@@ -303,6 +304,6 @@ class TLRAMAtomicAutomata() extends LazyModule {
   }
 }
 
-class TLRAMAtomicAutomataTest extends UnitTest(timeout = 500000) {
+class TLRAMAtomicAutomataTest(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new TLRAMAtomicAutomata).module).io.finished
 }
diff --git a/src/main/scala/uncore/tilelink2/Broadcast.scala b/src/main/scala/uncore/tilelink2/Broadcast.scala
index 06ba33db..50cc55dc 100644
--- a/src/main/scala/uncore/tilelink2/Broadcast.scala
+++ b/src/main/scala/uncore/tilelink2/Broadcast.scala
@@ -3,10 +3,11 @@
 package uncore.tilelink2
 
 import Chisel._
+import config._
 import diplomacy._
 import scala.math.{min,max}
 
-class TLBroadcast(lineBytes: Int, numTrackers: Int = 4, bufferless: Boolean = false) extends LazyModule
+class TLBroadcast(lineBytes: Int, numTrackers: Int = 4, bufferless: Boolean = false)(implicit p: Parameters) extends LazyModule
 {
   require (lineBytes > 0 && isPow2(lineBytes))
   require (numTrackers > 0)
diff --git a/src/main/scala/uncore/tilelink2/Buffer.scala b/src/main/scala/uncore/tilelink2/Buffer.scala
index 425fb077..56a4070a 100644
--- a/src/main/scala/uncore/tilelink2/Buffer.scala
+++ b/src/main/scala/uncore/tilelink2/Buffer.scala
@@ -4,11 +4,12 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.math.{min,max}
 
 // pipe is only used if a queue has depth = 1
-class TLBuffer(a: Int = 2, b: Int = 2, c: Int = 2, d: Int = 2, e: Int = 2, pipe: Boolean = true) extends LazyModule
+class TLBuffer(a: Int = 2, b: Int = 2, c: Int = 2, d: Int = 2, e: Int = 2, pipe: Boolean = true)(implicit p: Parameters) extends LazyModule
 {
   require (a >= 0)
   require (b >= 0)
@@ -49,12 +50,12 @@ class TLBuffer(a: Int = 2, b: Int = 2, c: Int = 2, d: Int = 2, e: Int = 2, pipe:
 object TLBuffer
 {
   // applied to the TL source node; y.node := TLBuffer(x.node)
-  def apply()                                (x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = apply(2)(x)
-  def apply(entries: Int)                    (x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = apply(entries, true)(x)
-  def apply(entries: Int, pipe: Boolean)     (x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = apply(entries, entries, pipe)(x)
-  def apply(ace: Int, bd: Int)               (x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = apply(ace, bd, true)(x)
-  def apply(ace: Int, bd: Int, pipe: Boolean)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = apply(ace, bd, ace, bd, ace, pipe)(x)
-  def apply(a: Int, b: Int, c: Int, d: Int, e: Int, pipe: Boolean = true)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply()                                (x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = apply(2)(x)
+  def apply(entries: Int)                    (x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = apply(entries, true)(x)
+  def apply(entries: Int, pipe: Boolean)     (x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = apply(entries, entries, pipe)(x)
+  def apply(ace: Int, bd: Int)               (x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = apply(ace, bd, true)(x)
+  def apply(ace: Int, bd: Int, pipe: Boolean)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = apply(ace, bd, ace, bd, ace, pipe)(x)
+  def apply(a: Int, b: Int, c: Int, d: Int, e: Int, pipe: Boolean = true)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val buffer = LazyModule(new TLBuffer(a, b, c, d, e, pipe))
     buffer.node := x
     buffer.node
diff --git a/src/main/scala/uncore/tilelink2/Crossing.scala b/src/main/scala/uncore/tilelink2/Crossing.scala
index 169b358b..f0eb8caf 100644
--- a/src/main/scala/uncore/tilelink2/Crossing.scala
+++ b/src/main/scala/uncore/tilelink2/Crossing.scala
@@ -4,10 +4,11 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import util._
 
-class TLAsyncCrossingSource(sync: Int = 3) extends LazyModule
+class TLAsyncCrossingSource(sync: Int = 3)(implicit p: Parameters) extends LazyModule
 {
   val node = TLAsyncSourceNode()
 
@@ -41,7 +42,7 @@ class TLAsyncCrossingSource(sync: Int = 3) extends LazyModule
   }
 }
 
-class TLAsyncCrossingSink(depth: Int = 8, sync: Int = 3) extends LazyModule
+class TLAsyncCrossingSink(depth: Int = 8, sync: Int = 3)(implicit p: Parameters) extends LazyModule
 {
   val node = TLAsyncSinkNode(depth)
 
@@ -77,7 +78,7 @@ class TLAsyncCrossingSink(depth: Int = 8, sync: Int = 3) extends LazyModule
 object TLAsyncCrossingSource
 {
   // applied to the TL source node; y.node := TLAsyncCrossingSource()(x.node)
-  def apply(sync: Int = 3)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLAsyncOutwardNode = {
+  def apply(sync: Int = 3)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLAsyncOutwardNode = {
     val source = LazyModule(new TLAsyncCrossingSource(sync))
     source.node := x
     source.node
@@ -87,14 +88,14 @@ object TLAsyncCrossingSource
 object TLAsyncCrossingSink
 {
   // applied to the TL source node; y.node := TLAsyncCrossingSink()(x.node)
-  def apply(depth: Int = 8, sync: Int = 3)(x: TLAsyncOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply(depth: Int = 8, sync: Int = 3)(x: TLAsyncOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val sink = LazyModule(new TLAsyncCrossingSink(depth, sync))
     sink.node := x
     sink.node
   }
 }
 
-class TLAsyncCrossing(depth: Int = 8, sync: Int = 3) extends LazyModule
+class TLAsyncCrossing(depth: Int = 8, sync: Int = 3)(implicit p: Parameters) extends LazyModule
 {
   val nodeIn = TLInputNode()
   val nodeOut = TLOutputNode()
@@ -136,7 +137,7 @@ class TLAsyncCrossing(depth: Int = 8, sync: Int = 3) extends LazyModule
 /** Synthesizeable unit tests */
 import unittest._
 
-class TLRAMCrossing extends LazyModule {
+class TLRAMCrossing(implicit p: Parameters) extends LazyModule {
   val model = LazyModule(new TLRAMModel)
   val ram  = LazyModule(new TLRAM(AddressSet(0x0, 0x3ff)))
   val fuzz = LazyModule(new TLFuzzer(5000))
@@ -167,6 +168,6 @@ class TLRAMCrossing extends LazyModule {
   }
 }
 
-class TLRAMCrossingTest extends UnitTest(timeout = 500000) {
+class TLRAMCrossingTest(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new TLRAMCrossing).module).io.finished
 }
diff --git a/src/main/scala/uncore/tilelink2/Example.scala b/src/main/scala/uncore/tilelink2/Example.scala
index 8af96528..db102fc0 100644
--- a/src/main/scala/uncore/tilelink2/Example.scala
+++ b/src/main/scala/uncore/tilelink2/Example.scala
@@ -3,6 +3,7 @@
 package uncore.tilelink2
 
 import Chisel._
+import config._
 import regmapper._
 
 case class ExampleParams(num: Int, address: BigInt)
@@ -33,6 +34,6 @@ trait ExampleModule extends HasRegMap
 }
 
 // Create a concrete TL2 version of the abstract Example slave
-class TLExample(p: ExampleParams) extends TLRegisterRouter(p.address, 4)(
-  new TLRegBundle(p, _)    with ExampleBundle)(
-  new TLRegModule(p, _, _) with ExampleModule)
+class TLExample(params: ExampleParams)(implicit p: Parameters) extends TLRegisterRouter(params.address, 4)(
+  new TLRegBundle(params, _)    with ExampleBundle)(
+  new TLRegModule(params, _, _) with ExampleModule)
diff --git a/src/main/scala/uncore/tilelink2/Filter.scala b/src/main/scala/uncore/tilelink2/Filter.scala
index a834b5f4..b6ddb9ea 100644
--- a/src/main/scala/uncore/tilelink2/Filter.scala
+++ b/src/main/scala/uncore/tilelink2/Filter.scala
@@ -4,10 +4,11 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.math.{min,max}
 
-class TLFilter(select: AddressSet) extends LazyModule
+class TLFilter(select: AddressSet)(implicit p: Parameters) extends LazyModule
 {
   val node = TLAdapterNode(
     clientFn  = { case Seq(cp) => cp },
@@ -44,7 +45,7 @@ class TLFilter(select: AddressSet) extends LazyModule
 object TLFilter
 {
   // applied to the TL source node; y.node := TLBuffer(x.node)
-  def apply(select: AddressSet)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply(select: AddressSet)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val filter = LazyModule(new TLFilter(select))
     filter.node := x
     filter.node
diff --git a/src/main/scala/uncore/tilelink2/Fragmenter.scala b/src/main/scala/uncore/tilelink2/Fragmenter.scala
index fd9a44d2..0376b84e 100644
--- a/src/main/scala/uncore/tilelink2/Fragmenter.scala
+++ b/src/main/scala/uncore/tilelink2/Fragmenter.scala
@@ -4,6 +4,7 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.math.{min,max}
 
@@ -13,7 +14,7 @@ import scala.math.{min,max}
 // Fragmenter modifies: PutFull, PutPartial, LogicalData, Get, Hint
 // Fragmenter passes: ArithmeticData (truncated to minSize if alwaysMin)
 // Fragmenter cannot modify acquire (could livelock); thus it is unsafe to put caches on both sides
-class TLFragmenter(minSize: Int, maxSize: Int, alwaysMin: Boolean = false) extends LazyModule
+class TLFragmenter(minSize: Int, maxSize: Int, alwaysMin: Boolean = false)(implicit p: Parameters) extends LazyModule
 {
   require (isPow2 (maxSize))
   require (isPow2 (minSize))
@@ -253,7 +254,7 @@ class TLFragmenter(minSize: Int, maxSize: Int, alwaysMin: Boolean = false) exten
 object TLFragmenter
 {
   // applied to the TL source node; y.node := TLFragmenter(x.node, 256, 4)
-  def apply(minSize: Int, maxSize: Int, alwaysMin: Boolean = false)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply(minSize: Int, maxSize: Int, alwaysMin: Boolean = false)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val fragmenter = LazyModule(new TLFragmenter(minSize, maxSize, alwaysMin))
     fragmenter.node := x
     fragmenter.node
@@ -263,7 +264,7 @@ object TLFragmenter
 /** Synthesizeable unit tests */
 import unittest._
 
-class TLRAMFragmenter(ramBeatBytes: Int, maxSize: Int) extends LazyModule {
+class TLRAMFragmenter(ramBeatBytes: Int, maxSize: Int)(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(5000))
   val model = LazyModule(new TLRAMModel)
   val ram  = LazyModule(new TLRAM(AddressSet(0x0, 0x3ff), beatBytes = ramBeatBytes))
@@ -276,6 +277,6 @@ class TLRAMFragmenter(ramBeatBytes: Int, maxSize: Int) extends LazyModule {
   }
 }
 
-class TLRAMFragmenterTest(ramBeatBytes: Int, maxSize: Int) extends UnitTest(timeout = 500000) {
+class TLRAMFragmenterTest(ramBeatBytes: Int, maxSize: Int)(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new TLRAMFragmenter(ramBeatBytes,maxSize)).module).io.finished
 }
diff --git a/src/main/scala/uncore/tilelink2/Fuzzer.scala b/src/main/scala/uncore/tilelink2/Fuzzer.scala
index 38756238..1a920dd9 100644
--- a/src/main/scala/uncore/tilelink2/Fuzzer.scala
+++ b/src/main/scala/uncore/tilelink2/Fuzzer.scala
@@ -3,6 +3,7 @@
 package uncore.tilelink2
 
 import Chisel._
+import config._
 import diplomacy._
 
 class IDMapGenerator(numIds: Int) extends Module {
@@ -85,7 +86,7 @@ class TLFuzzer(
                   (wide: Int, increment: Bool, abs_values: Int) =>
                    LFSRNoiseMaker(wide=wide, increment=increment)
                   }
-              ) extends LazyModule
+              )(implicit p: Parameters) extends LazyModule
 {
   val node = TLClientNode(TLClientParameters(sourceId = IdRange(0,inFlight)))
 
@@ -203,7 +204,7 @@ class TLFuzzer(
 /** Synthesizeable integration test */
 import unittest._
 
-class TLFuzzRAM extends LazyModule
+class TLFuzzRAM()(implicit p: Parameters) extends LazyModule
 {
   val model = LazyModule(new TLRAMModel("TLFuzzRAM"))
   val ram  = LazyModule(new TLRAM(AddressSet(0x800, 0x7ff)))
@@ -243,7 +244,7 @@ class TLFuzzRAM extends LazyModule
   }
 }
 
-class TLFuzzRAMTest extends UnitTest(500000) {
+class TLFuzzRAMTest()(implicit p: Parameters) extends UnitTest(500000) {
   val dut = Module(LazyModule(new TLFuzzRAM).module)
   io.finished := dut.io.finished
 }
diff --git a/src/main/scala/uncore/tilelink2/HintHandler.scala b/src/main/scala/uncore/tilelink2/HintHandler.scala
index 1542f792..d9540b52 100644
--- a/src/main/scala/uncore/tilelink2/HintHandler.scala
+++ b/src/main/scala/uncore/tilelink2/HintHandler.scala
@@ -5,10 +5,11 @@ package uncore.tilelink2
 import scala.math.min
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 
 // Acks Hints for managers that don't support them or Acks all Hints if !passthrough
-class TLHintHandler(supportManagers: Boolean = true, supportClients: Boolean = false, passthrough: Boolean = true) extends LazyModule
+class TLHintHandler(supportManagers: Boolean = true, supportClients: Boolean = false, passthrough: Boolean = true)(implicit p: Parameters) extends LazyModule
 {
   val node = TLAdapterNode(
     clientFn  = { case Seq(c) => if (!supportClients)  c else c.copy(minLatency = min(1, c.minLatency), clients  = c.clients .map(_.copy(supportsHint = TransferSizes(1, c.maxTransfer)))) },
@@ -100,7 +101,7 @@ class TLHintHandler(supportManagers: Boolean = true, supportClients: Boolean = f
 object TLHintHandler
 {
   // applied to the TL source node; y.node := TLHintHandler(x.node)
-  def apply(supportManagers: Boolean = true, supportClients: Boolean = false, passthrough: Boolean = true)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply(supportManagers: Boolean = true, supportClients: Boolean = false, passthrough: Boolean = true)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val hints = LazyModule(new TLHintHandler(supportManagers, supportClients, passthrough))
     hints.node := x
     hints.node
@@ -112,7 +113,7 @@ import unittest._
 
 //TODO ensure handler will pass through hints to clients that can handle them themselves
 
-class TLRAMHintHandler() extends LazyModule {
+class TLRAMHintHandler()(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(5000))
   val model = LazyModule(new TLRAMModel)
   val ram  = LazyModule(new TLRAM(AddressSet(0x0, 0x3ff)))
@@ -125,6 +126,6 @@ class TLRAMHintHandler() extends LazyModule {
   }
 }
 
-class TLRAMHintHandlerTest extends UnitTest(timeout = 500000) {
+class TLRAMHintHandlerTest()(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new TLRAMHintHandler).module).io.finished
 }
diff --git a/src/main/scala/uncore/tilelink2/IntNodes.scala b/src/main/scala/uncore/tilelink2/IntNodes.scala
index 241c944f..eac638ba 100644
--- a/src/main/scala/uncore/tilelink2/IntNodes.scala
+++ b/src/main/scala/uncore/tilelink2/IntNodes.scala
@@ -4,6 +4,7 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.collection.mutable.ListBuffer
 import scala.math.max
@@ -65,7 +66,7 @@ object IntImp extends NodeImp[IntSourcePortParameters, IntSinkPortParameters, In
   override def labelI(ei: IntEdge) = ei.source.sources.map(_.range.size).sum.toString
   override def labelO(eo: IntEdge) = eo.source.sources.map(_.range.size).sum.toString
 
-  def connect(bo: => Vec[Bool], bi: => Vec[Bool], ei: => IntEdge)(implicit sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
+  def connect(bo: => Vec[Bool], bi: => Vec[Bool], ei: => IntEdge)(implicit p: Parameters, sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
     (None, () => {
       // Cannot use bulk connect, because the widths could differ
       (bo zip bi) foreach { case (o, i) => i := o }
@@ -100,7 +101,7 @@ case class IntBlindInputNode(num: Int) extends BlindInputNode(IntImp)(IntSourceP
 case class IntInternalOutputNode() extends InternalOutputNode(IntImp)(IntSinkPortParameters(Seq(IntSinkParameters())))
 case class IntInternalInputNode(num: Int) extends InternalInputNode(IntImp)(IntSourcePortParameters(Seq(IntSourceParameters(num))))
 
-class IntXbar extends LazyModule
+class IntXbar()(implicit p: Parameters) extends LazyModule
 {
   val intnode = IntAdapterNode(
     numSourcePorts = 0 to 128,
@@ -123,7 +124,7 @@ class IntXbar extends LazyModule
   }
 }
 
-class IntXing extends LazyModule
+class IntXing()(implicit p: Parameters) extends LazyModule
 {
   val intnode = IntIdentityNode()
 
diff --git a/src/main/scala/uncore/tilelink2/Isolation.scala b/src/main/scala/uncore/tilelink2/Isolation.scala
index 8bceeadf..bc3fcd44 100644
--- a/src/main/scala/uncore/tilelink2/Isolation.scala
+++ b/src/main/scala/uncore/tilelink2/Isolation.scala
@@ -4,11 +4,12 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import util.AsyncBundle
 
 // READ the comments in the TLIsolation object before you instantiate this module
-class TLIsolation(fOut: (Bool, UInt) => UInt, fIn: (Bool, UInt) => UInt) extends LazyModule
+class TLIsolation(fOut: (Bool, UInt) => UInt, fIn: (Bool, UInt) => UInt)(implicit p: Parameters) extends LazyModule
 {
   val node = TLAsyncIdentityNode()
 
@@ -76,7 +77,7 @@ object TLIsolation
   // fOut is applied to data flowing from client to manager
   // fIn  is applied to data flowing from manager to client
   // **** WARNING: the isolation functions must bring the values to 0 ****
-  def apply(fOut: (Bool, UInt) => UInt, fIn: (Bool, UInt) => UInt)(x: TLAsyncOutwardNode)(implicit sourceInfo: SourceInfo): (TLAsyncOutwardNode, () => (Bool, Bool)) = {
+  def apply(fOut: (Bool, UInt) => UInt, fIn: (Bool, UInt) => UInt)(x: TLAsyncOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): (TLAsyncOutwardNode, () => (Bool, Bool)) = {
     val iso = LazyModule(new TLIsolation(fOut, fIn))
     iso.node := x
     (iso.node, () => (iso.module.io.iso_out, iso.module.io.iso_in))
diff --git a/src/main/scala/uncore/tilelink2/Legacy.scala b/src/main/scala/uncore/tilelink2/Legacy.scala
index 373f1e5d..34ef7bbd 100644
--- a/src/main/scala/uncore/tilelink2/Legacy.scala
+++ b/src/main/scala/uncore/tilelink2/Legacy.scala
@@ -8,19 +8,15 @@ import config._
 import uncore.tilelink._
 import uncore.constants._
 
-// Instantiate 'val p' before HasTileLinkParameters tries to use it
-abstract class LegacyLazyModuleImp(module: LazyModule)(implicit val p: Parameters)
-  extends LazyModuleImp(module) with HasTileLinkParameters
-
-class TLLegacy(implicit val p: Parameters) extends LazyModule with HasTileLinkParameters
+class TLLegacy(implicit p: Parameters) extends LazyModule with HasTileLinkParameters
 {
   // TL legacy clients don't support anything fancy
   val node = TLClientNode(TLClientParameters(
     sourceId = IdRange(0, 1 << tlClientXactIdBits)))
 
-  lazy val module = new LegacyLazyModuleImp(this) {
+  lazy val module = new LazyModuleImp(this) with HasTileLinkParameters {
     val io = new Bundle {
-      val legacy = new ClientUncachedTileLinkIO()(p).flip
+      val legacy = new ClientUncachedTileLinkIO().flip
       val out = node.bundleOut
     }
 
diff --git a/src/main/scala/uncore/tilelink2/Monitor.scala b/src/main/scala/uncore/tilelink2/Monitor.scala
index 9af850fd..7f3debfd 100644
--- a/src/main/scala/uncore/tilelink2/Monitor.scala
+++ b/src/main/scala/uncore/tilelink2/Monitor.scala
@@ -4,9 +4,10 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.{SourceInfo, SourceLine}
+import config._
 import diplomacy._
 
-class TLMonitor(gen: () => TLBundleSnoop, edge: () => TLEdge, sourceInfo: SourceInfo) extends LazyModule
+class TLMonitor(gen: () => TLBundleSnoop, edge: () => TLEdge, sourceInfo: SourceInfo)(implicit p: Parameters) extends LazyModule
 {
   def extra(implicit sourceInfo: SourceInfo) = {
     sourceInfo match {
diff --git a/src/main/scala/uncore/tilelink2/Nodes.scala b/src/main/scala/uncore/tilelink2/Nodes.scala
index a78e3b0b..65ac61d4 100644
--- a/src/main/scala/uncore/tilelink2/Nodes.scala
+++ b/src/main/scala/uncore/tilelink2/Nodes.scala
@@ -4,6 +4,7 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.collection.mutable.ListBuffer
 
@@ -28,7 +29,7 @@ object TLImp extends NodeImp[TLClientPortParameters, TLManagerPortParameters, TL
   override def labelI(ei: TLEdgeIn)  = (ei.manager.beatBytes * 8).toString
   override def labelO(eo: TLEdgeOut) = (eo.manager.beatBytes * 8).toString
 
-  def connect(bo: => TLBundle, bi: => TLBundle, ei: => TLEdgeIn)(implicit sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
+  def connect(bo: => TLBundle, bi: => TLBundle, ei: => TLEdgeIn)(implicit p: Parameters, sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
     val monitor = if (emitMonitors) {
       Some(LazyModule(new TLMonitor(() => new TLBundleSnoop(bo.params), () => ei, sourceInfo)))
     } else {
@@ -132,7 +133,7 @@ case class TLInternalInputNode(portParams: TLClientPortParameters) extends Inter
 /** Synthesizeable unit tests */
 import unittest._
 
-class TLInputNodeTest extends UnitTest(500000) {
+class TLInputNodeTest()(implicit p: Parameters) extends UnitTest(500000) {
   class Acceptor extends LazyModule {
     val node = TLInputNode()
     val tlram = LazyModule(new TLRAM(AddressSet(0x54321000, 0xfff)))
@@ -168,7 +169,7 @@ object TLAsyncImp extends NodeImp[TLAsyncClientPortParameters, TLAsyncManagerPor
   override def labelI(ei: TLAsyncEdgeParameters) = ei.manager.depth.toString
   override def labelO(eo: TLAsyncEdgeParameters) = eo.manager.depth.toString
 
-  def connect(bo: => TLAsyncBundle, bi: => TLAsyncBundle, ei: => TLAsyncEdgeParameters)(implicit sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
+  def connect(bo: => TLAsyncBundle, bi: => TLAsyncBundle, ei: => TLAsyncEdgeParameters)(implicit p: Parameters, sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
     (None, () => { bi <> bo })
   }
 
diff --git a/src/main/scala/uncore/tilelink2/RAMModel.scala b/src/main/scala/uncore/tilelink2/RAMModel.scala
index 02c997ea..cee51935 100644
--- a/src/main/scala/uncore/tilelink2/RAMModel.scala
+++ b/src/main/scala/uncore/tilelink2/RAMModel.scala
@@ -3,6 +3,7 @@
 package uncore.tilelink2
 
 import Chisel._
+import config._
 import diplomacy._
 
 // We detect concurrent puts that put memory into an undefined state.
@@ -20,7 +21,7 @@ import diplomacy._
 // put, get, getAck, putAck => ok: detected by getAck (it sees busy>0)		impossible for FIFO
 // If FIFO, the getAck should check data even if its validity was wiped
 
-class TLRAMModel(log: String = "") extends LazyModule
+class TLRAMModel(log: String = "")(implicit p: Parameters) extends LazyModule
 {
   val node = TLIdentityNode()
 
diff --git a/src/main/scala/uncore/tilelink2/RegisterRouter.scala b/src/main/scala/uncore/tilelink2/RegisterRouter.scala
index 42371e4e..4269380f 100644
--- a/src/main/scala/uncore/tilelink2/RegisterRouter.scala
+++ b/src/main/scala/uncore/tilelink2/RegisterRouter.scala
@@ -3,6 +3,7 @@
 package uncore.tilelink2
 
 import Chisel._
+import config._
 import diplomacy._
 import regmapper._
 import scala.math.{min,max}
@@ -79,21 +80,22 @@ object TLRegisterNode
 // register mapped device from a totally abstract register mapped device.
 // See GPIO.scala in this directory for an example
 
-abstract class TLRegisterRouterBase(val address: AddressSet, interrupts: Int, concurrency: Int, beatBytes: Int, undefZero: Boolean, executable: Boolean) extends LazyModule
+abstract class TLRegisterRouterBase(val address: AddressSet, interrupts: Int, concurrency: Int, beatBytes: Int, undefZero: Boolean, executable: Boolean)(implicit p: Parameters) extends LazyModule
 {
   val node = TLRegisterNode(address, concurrency, beatBytes, undefZero, executable)
   val intnode = IntSourceNode(interrupts)
 }
 
-case class TLRegBundleArg(interrupts: Vec[Vec[Bool]], in: Vec[TLBundle])
+case class TLRegBundleArg(interrupts: Vec[Vec[Bool]], in: Vec[TLBundle])(implicit val p: Parameters)
 
 class TLRegBundleBase(arg: TLRegBundleArg) extends Bundle
 {
+  implicit val p = arg.p
   val interrupts = arg.interrupts
   val in = arg.in
 }
 
-class TLRegBundle[P](val params: P, arg: TLRegBundleArg) extends TLRegBundleBase(arg)
+class TLRegBundle[P](val params: P, arg: TLRegBundleArg)(implicit p: Parameters) extends TLRegBundleBase(arg)
 
 class TLRegModule[P, B <: TLRegBundleBase](val params: P, bundleBuilder: => B, router: TLRegisterRouterBase)
   extends LazyModuleImp(router) with HasRegMap
@@ -107,7 +109,7 @@ class TLRegModule[P, B <: TLRegBundleBase](val params: P, bundleBuilder: => B, r
 class TLRegisterRouter[B <: TLRegBundleBase, M <: LazyModuleImp]
    (val base: BigInt, val interrupts: Int = 0, val size: BigInt = 4096, val concurrency: Int = 0, val beatBytes: Int = 4, undefZero: Boolean = true, executable: Boolean = false)
    (bundleBuilder: TLRegBundleArg => B)
-   (moduleBuilder: (=> B, TLRegisterRouterBase) => M)
+   (moduleBuilder: (=> B, TLRegisterRouterBase) => M)(implicit p: Parameters)
   extends TLRegisterRouterBase(AddressSet(base, size-1), interrupts, concurrency, beatBytes, undefZero, executable)
 {
   require (isPow2(size))
diff --git a/src/main/scala/uncore/tilelink2/RegisterRouterTest.scala b/src/main/scala/uncore/tilelink2/RegisterRouterTest.scala
index 35e8c3fa..fd527fcb 100644
--- a/src/main/scala/uncore/tilelink2/RegisterRouterTest.scala
+++ b/src/main/scala/uncore/tilelink2/RegisterRouterTest.scala
@@ -3,6 +3,7 @@
 package uncore.tilelink2
 
 import Chisel._
+import config._
 import diplomacy._
 import regmapper._
 import unittest._
@@ -213,7 +214,7 @@ trait RRTest0Module extends HasRegMap
   regmap(RRTest0Map.map:_*)
 }
 
-class RRTest0(address: BigInt) extends TLRegisterRouter(address, 0, 32, 0, 4)(
+class RRTest0(address: BigInt)(implicit p: Parameters) extends TLRegisterRouter(address, 0, 32, 0, 4)(
   new TLRegBundle((), _)    with RRTest0Bundle)(
   new TLRegModule((), _, _) with RRTest0Module)
 
@@ -250,11 +251,11 @@ trait RRTest1Module extends Module with HasRegMap
   regmap(map:_*)
 }
 
-class RRTest1(address: BigInt) extends TLRegisterRouter(address, 0, 32, 6, 4)(
+class RRTest1(address: BigInt)(implicit p: Parameters) extends TLRegisterRouter(address, 0, 32, 6, 4)(
   new TLRegBundle((), _)    with RRTest1Bundle)(
   new TLRegModule((), _, _) with RRTest1Module)
 
-class FuzzRRTest0 extends LazyModule {
+class FuzzRRTest0()(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(5000))
   val rrtr = LazyModule(new RRTest0(0x400))
 
@@ -265,11 +266,11 @@ class FuzzRRTest0 extends LazyModule {
   }
 }
 
-class TLRR0Test extends UnitTest(timeout = 500000) {
+class TLRR0Test()(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new FuzzRRTest0).module).io.finished
 }
 
-class FuzzRRTest1 extends LazyModule {
+class FuzzRRTest1()(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(5000))
   val rrtr = LazyModule(new RRTest1(0x400))
 
@@ -280,7 +281,7 @@ class FuzzRRTest1 extends LazyModule {
   }
 }
 
-class TLRR1Test extends UnitTest(timeout = 500000) {
+class TLRR1Test()(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new FuzzRRTest1).module).io.finished
 }
 
diff --git a/src/main/scala/uncore/tilelink2/SRAM.scala b/src/main/scala/uncore/tilelink2/SRAM.scala
index 9f84eeee..86c2730b 100644
--- a/src/main/scala/uncore/tilelink2/SRAM.scala
+++ b/src/main/scala/uncore/tilelink2/SRAM.scala
@@ -3,9 +3,10 @@
 package uncore.tilelink2
 
 import Chisel._
+import config._
 import diplomacy._
 
-class TLRAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4) extends LazyModule
+class TLRAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4)(implicit p: Parameters) extends LazyModule
 {
   val node = TLManagerNode(TLManagerPortParameters(
     Seq(TLManagerParameters(
@@ -84,7 +85,7 @@ class TLRAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4)
 /** Synthesizeable unit testing */
 import unittest._
 
-class TLRAMSimple(ramBeatBytes: Int) extends LazyModule {
+class TLRAMSimple(ramBeatBytes: Int)(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(5000))
   val model = LazyModule(new TLRAMModel)
   val ram  = LazyModule(new TLRAM(AddressSet(0x0, 0x3ff), beatBytes = ramBeatBytes))
@@ -97,6 +98,6 @@ class TLRAMSimple(ramBeatBytes: Int) extends LazyModule {
   }
 }
 
-class TLRAMSimpleTest(ramBeatBytes: Int) extends UnitTest(timeout = 500000) {
+class TLRAMSimpleTest(ramBeatBytes: Int)(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new TLRAMSimple(ramBeatBytes)).module).io.finished
 }
diff --git a/src/main/scala/uncore/tilelink2/SourceShrinker.scala b/src/main/scala/uncore/tilelink2/SourceShrinker.scala
index 3c0aa02e..d4948bc4 100644
--- a/src/main/scala/uncore/tilelink2/SourceShrinker.scala
+++ b/src/main/scala/uncore/tilelink2/SourceShrinker.scala
@@ -4,10 +4,11 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.math.{min,max}
 
-class TLSourceShrinker(maxInFlight: Int) extends LazyModule
+class TLSourceShrinker(maxInFlight: Int)(implicit p: Parameters) extends LazyModule
 {
   require (maxInFlight > 0)
 
@@ -78,7 +79,7 @@ class TLSourceShrinker(maxInFlight: Int) extends LazyModule
 object TLSourceShrinker
 {
   // applied to the TL source node; y.node := TLSourceShrinker(n)(x.node)
-  def apply(maxInFlight: Int)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply(maxInFlight: Int)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val shrinker = LazyModule(new TLSourceShrinker(maxInFlight))
     shrinker.node := x
     shrinker.node
diff --git a/src/main/scala/uncore/tilelink2/ToAXI4.scala b/src/main/scala/uncore/tilelink2/ToAXI4.scala
index 3aefa307..53fec766 100644
--- a/src/main/scala/uncore/tilelink2/ToAXI4.scala
+++ b/src/main/scala/uncore/tilelink2/ToAXI4.scala
@@ -4,6 +4,7 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import util.PositionalMultiQueue
 import uncore.axi4._
@@ -35,7 +36,7 @@ case class TLToAXI4Node(idBits: Int) extends MixedNode(TLImp, AXI4Imp)(
   numPO = 1 to 1,
   numPI = 1 to 1)
 
-class TLToAXI4(idBits: Int, combinational: Boolean = true) extends LazyModule
+class TLToAXI4(idBits: Int, combinational: Boolean = true)(implicit p: Parameters) extends LazyModule
 {
   val node = TLToAXI4Node(idBits)
 
@@ -229,7 +230,7 @@ class TLToAXI4(idBits: Int, combinational: Boolean = true) extends LazyModule
 object TLToAXI4
 {
   // applied to the TL source node; y.node := TLToAXI4(idBits)(x.node)
-  def apply(idBits: Int, combinational: Boolean = true)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): AXI4OutwardNode = {
+  def apply(idBits: Int, combinational: Boolean = true)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): AXI4OutwardNode = {
     val axi4 = LazyModule(new TLToAXI4(idBits, combinational))
     axi4.node := x
     axi4.node
diff --git a/src/main/scala/uncore/tilelink2/WidthWidget.scala b/src/main/scala/uncore/tilelink2/WidthWidget.scala
index bde1f830..7a8aa01f 100644
--- a/src/main/scala/uncore/tilelink2/WidthWidget.scala
+++ b/src/main/scala/uncore/tilelink2/WidthWidget.scala
@@ -4,11 +4,12 @@ package uncore.tilelink2
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
+import config._
 import diplomacy._
 import scala.math.{min,max}
 
 // innBeatBytes => the new client-facing bus width
-class TLWidthWidget(innerBeatBytes: Int) extends LazyModule
+class TLWidthWidget(innerBeatBytes: Int)(implicit p: Parameters) extends LazyModule
 {
   val node = TLAdapterNode(
     clientFn  = { case Seq(c) => c },
@@ -166,7 +167,7 @@ class TLWidthWidget(innerBeatBytes: Int) extends LazyModule
 object TLWidthWidget
 {
   // applied to the TL source node; y.node := WidthWidget(x.node, 16)
-  def apply(innerBeatBytes: Int)(x: TLOutwardNode)(implicit sourceInfo: SourceInfo): TLOutwardNode = {
+  def apply(innerBeatBytes: Int)(x: TLOutwardNode)(implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val widget = LazyModule(new TLWidthWidget(innerBeatBytes))
     widget.node := x
     widget.node
@@ -176,7 +177,7 @@ object TLWidthWidget
 /** Synthesizeable unit tests */
 import unittest._
 
-class TLRAMWidthWidget(first: Int, second: Int) extends LazyModule {
+class TLRAMWidthWidget(first: Int, second: Int)(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(5000))
   val model = LazyModule(new TLRAMModel)
   val ram  = LazyModule(new TLRAM(AddressSet(0x0, 0x3ff)))
@@ -193,6 +194,6 @@ class TLRAMWidthWidget(first: Int, second: Int) extends LazyModule {
   }
 }
 
-class TLRAMWidthWidgetTest(little: Int, big: Int) extends UnitTest(timeout = 500000) {
+class TLRAMWidthWidgetTest(little: Int, big: Int)(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new TLRAMWidthWidget(little,big)).module).io.finished
 }
diff --git a/src/main/scala/uncore/tilelink2/Xbar.scala b/src/main/scala/uncore/tilelink2/Xbar.scala
index 401e9064..6e6b8fb8 100644
--- a/src/main/scala/uncore/tilelink2/Xbar.scala
+++ b/src/main/scala/uncore/tilelink2/Xbar.scala
@@ -3,9 +3,10 @@
 package uncore.tilelink2
 
 import Chisel._
+import config._
 import diplomacy._
 
-class TLXbar(policy: TLArbiter.Policy = TLArbiter.lowestIndexFirst) extends LazyModule
+class TLXbar(policy: TLArbiter.Policy = TLArbiter.lowestIndexFirst)(implicit p: Parameters) extends LazyModule
 {
   def mapInputIds (ports: Seq[TLClientPortParameters ]) = assignRanges(ports.map(_.endSourceId))
   def mapOutputIds(ports: Seq[TLManagerPortParameters]) = assignRanges(ports.map(_.endSinkId))
@@ -184,7 +185,7 @@ class TLXbar(policy: TLArbiter.Policy = TLArbiter.lowestIndexFirst) extends Lazy
 /** Synthesizeable unit tests */
 import unittest._
 
-class TLRAMXbar(nManagers: Int) extends LazyModule {
+class TLRAMXbar(nManagers: Int)(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(5000))
   val model = LazyModule(new TLRAMModel)
   val xbar = LazyModule(new TLXbar)
@@ -201,11 +202,11 @@ class TLRAMXbar(nManagers: Int) extends LazyModule {
   }
 }
 
-class TLRAMXbarTest(nManagers: Int) extends UnitTest(timeout = 500000) {
+class TLRAMXbarTest(nManagers: Int)(implicit p: Parameters) extends UnitTest(timeout = 500000) {
   io.finished := Module(LazyModule(new TLRAMXbar(nManagers)).module).io.finished
 }
 
-class TLMulticlientXbar(nManagers: Int, nClients: Int) extends LazyModule {
+class TLMulticlientXbar(nManagers: Int, nClients: Int)(implicit p: Parameters) extends LazyModule {
   val xbar = LazyModule(new TLXbar)
 
   val fuzzers = (0 until nClients) map { n =>
@@ -224,6 +225,6 @@ class TLMulticlientXbar(nManagers: Int, nClients: Int) extends LazyModule {
   }
 }
 
-class TLMulticlientXbarTest(nManagers: Int, nClients: Int) extends UnitTest(timeout = 5000000) {
+class TLMulticlientXbarTest(nManagers: Int, nClients: Int)(implicit p: Parameters) extends UnitTest(timeout = 5000000) {
   io.finished := Module(LazyModule(new TLMulticlientXbar(nManagers, nClients)).module).io.finished
 }
diff --git a/src/main/scala/unittest/Configs.scala b/src/main/scala/unittest/Configs.scala
index f46e9902..5137dee8 100644
--- a/src/main/scala/unittest/Configs.scala
+++ b/src/main/scala/unittest/Configs.scala
@@ -25,14 +25,16 @@ class JunctionsUnitTestConfig extends Config(new WithJunctionsUnitTests ++ new B
 class WithUncoreUnitTests extends Config(
   (pname, site, here) => pname match {
     case uncore.tilelink.TLId => "L1toL2"
-    case UnitTests => (p: Parameters) => Seq(
-      Module(new uncore.devices.ROMSlaveTest()(p)),
-      Module(new uncore.devices.TileLinkRAMTest()(p)),
-      Module(new uncore.converters.TileLinkWidthAdapterTest()(p)),
-      Module(new uncore.tilelink2.TLFuzzRAMTest),
-      Module(new uncore.axi4.AXI4LiteFuzzRAMTest),
-      Module(new uncore.axi4.AXI4FullFuzzRAMTest),
-      Module(new uncore.axi4.AXI4BridgeTest))
+    case UnitTests => (q: Parameters) => {
+      implicit val p = q
+      Seq(
+        Module(new uncore.devices.ROMSlaveTest()),
+        Module(new uncore.devices.TileLinkRAMTest()),
+        Module(new uncore.converters.TileLinkWidthAdapterTest()),
+        Module(new uncore.tilelink2.TLFuzzRAMTest),
+        Module(new uncore.axi4.AXI4LiteFuzzRAMTest),
+        Module(new uncore.axi4.AXI4FullFuzzRAMTest),
+        Module(new uncore.axi4.AXI4BridgeTest)) }
     case _ => throw new CDEMatchError
   }
 )
@@ -41,7 +43,8 @@ class UncoreUnitTestConfig extends Config(new WithUncoreUnitTests ++ new BaseCon
 
 class WithTLSimpleUnitTests extends Config(
   (pname, site, here) => pname match {
-    case UnitTests => (p: Parameters) => {
+    case UnitTests => (q: Parameters) => {
+      implicit val p = q
       Seq(
         Module(new uncore.tilelink2.TLRAMSimpleTest(1)),
         Module(new uncore.tilelink2.TLRAMSimpleTest(4)),
@@ -53,7 +56,9 @@ class WithTLSimpleUnitTests extends Config(
 
 class WithTLWidthUnitTests extends Config(
   (pname, site, here) => pname match {
-    case UnitTests => (p: Parameters) => { Seq(
+    case UnitTests => (q: Parameters) => {
+      implicit val p = q
+      Seq(
         Module(new uncore.tilelink2.TLRAMFragmenterTest( 4, 256)),
         Module(new uncore.tilelink2.TLRAMFragmenterTest(16,  64)),
         Module(new uncore.tilelink2.TLRAMFragmenterTest( 4,  16)),
@@ -64,7 +69,9 @@ class WithTLWidthUnitTests extends Config(
 
 class WithTLXbarUnitTests extends Config(
   (pname, site, here) => pname match {
-    case UnitTests => (p: Parameters) => { Seq(
+    case UnitTests => (q: Parameters) => {
+      implicit val p = q
+      Seq(
         Module(new uncore.tilelink2.TLRAMXbarTest(1)),
         Module(new uncore.tilelink2.TLRAMXbarTest(2)),
         Module(new uncore.tilelink2.TLRAMXbarTest(8)),
diff --git a/src/main/scala/util/GenericParameterizedBundle.scala b/src/main/scala/util/GenericParameterizedBundle.scala
index 2b0104d1..bed000e5 100644
--- a/src/main/scala/util/GenericParameterizedBundle.scala
+++ b/src/main/scala/util/GenericParameterizedBundle.scala
@@ -4,7 +4,7 @@ package util
 
 import Chisel._
 
-abstract class GenericParameterizedBundle[T <: Object](val params: T) extends Bundle
+abstract class GenericParameterizedBundle[+T <: Object](val params: T) extends Bundle
 {
   override def cloneType = {
     try {