40 lines
2.2 KiB
Scala
40 lines
2.2 KiB
Scala
// See LICENSE.SiFive for license details.
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package freechips.rocketchip.amba.ahb
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import Chisel._
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import chisel3.internal.sourceinfo.SourceInfo
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import freechips.rocketchip.config.Parameters
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import freechips.rocketchip.diplomacy._
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object AHBImp extends NodeImp[AHBMasterPortParameters, AHBSlavePortParameters, AHBEdgeParameters, AHBEdgeParameters, AHBBundle]
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{
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def edgeO(pd: AHBMasterPortParameters, pu: AHBSlavePortParameters, p: Parameters): AHBEdgeParameters = AHBEdgeParameters(pd, pu, p)
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def edgeI(pd: AHBMasterPortParameters, pu: AHBSlavePortParameters, p: Parameters): AHBEdgeParameters = AHBEdgeParameters(pd, pu, p)
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def bundleO(eo: AHBEdgeParameters): AHBBundle = AHBBundle(eo.bundle)
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def bundleI(ei: AHBEdgeParameters): AHBBundle = AHBBundle(ei.bundle)
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def colour = "#00ccff" // bluish
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override def labelI(ei: AHBEdgeParameters) = (ei.slave.beatBytes * 8).toString
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override def labelO(eo: AHBEdgeParameters) = (eo.slave.beatBytes * 8).toString
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override def mixO(pd: AHBMasterPortParameters, node: OutwardNode[AHBMasterPortParameters, AHBSlavePortParameters, AHBBundle]): AHBMasterPortParameters =
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pd.copy(masters = pd.masters.map { c => c.copy (nodePath = node +: c.nodePath) })
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override def mixI(pu: AHBSlavePortParameters, node: InwardNode[AHBMasterPortParameters, AHBSlavePortParameters, AHBBundle]): AHBSlavePortParameters =
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pu.copy(slaves = pu.slaves.map { m => m.copy (nodePath = node +: m.nodePath) })
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}
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// Nodes implemented inside modules
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case class AHBMasterNode(portParams: Seq[AHBMasterPortParameters])(implicit valName: ValName) extends SourceNode(AHBImp)(portParams)
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case class AHBSlaveNode(portParams: Seq[AHBSlavePortParameters])(implicit valName: ValName) extends SinkNode(AHBImp)(portParams)
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case class AHBNexusNode(
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masterFn: Seq[AHBMasterPortParameters] => AHBMasterPortParameters,
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slaveFn: Seq[AHBSlavePortParameters] => AHBSlavePortParameters,
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numMasterPorts: Range.Inclusive = 1 to 999,
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numSlavePorts: Range.Inclusive = 1 to 999)(
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implicit valName: ValName)
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extends NexusNode(AHBImp)(masterFn, slaveFn, numMasterPorts, numSlavePorts)
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case class AHBIdentityNode()(implicit valName: ValName) extends IdentityNode(AHBImp)()
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