Add VexRiscvAxi4 demo

This commit is contained in:
Dolu1990 2017-11-20 23:57:37 +01:00
parent 7c19288648
commit ce6fd6d0aa
2 changed files with 192 additions and 2 deletions

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@ -9,7 +9,7 @@ scalaVersion := "2.11.8"
EclipseKeys.withSource := true EclipseKeys.withSource := true
libraryDependencies ++= Seq( libraryDependencies ++= Seq(
"com.github.spinalhdl" % "spinalhdl-core_2.11" % "0.11.2", "com.github.spinalhdl" % "spinalhdl-core_2.11" % "0.11.3",
"com.github.spinalhdl" % "spinalhdl-lib_2.11" % "0.11.2", "com.github.spinalhdl" % "spinalhdl-lib_2.11" % "0.11.3",
"org.yaml" % "snakeyaml" % "1.8" "org.yaml" % "snakeyaml" % "1.8"
) )

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@ -0,0 +1,190 @@
package vexriscv.demo
import spinal.core._
import spinal.lib._
import spinal.lib.bus.amba4.axi.Axi4ReadOnly
import spinal.lib.bus.avalon.AvalonMM
import spinal.lib.com.jtag.Jtag
import spinal.lib.eda.altera.{InterruptReceiverTag, QSysify, ResetEmitterTag}
import vexriscv.ip.{DataCacheConfig, InstructionCacheConfig}
import vexriscv.plugin._
import vexriscv.{VexRiscv, VexRiscvConfig, plugin}
/**
* Created by spinalvm on 14.07.17.
*/
//class VexRiscvAvalon(debugClockDomain : ClockDomain) extends Component{
//
//}
object VexRiscvAxi4WithIntegratedJtag{
def main(args: Array[String]) {
val report = SpinalVerilog{
//CPU configuration
val cpuConfig = VexRiscvConfig(
plugins = List(
new PcManagerSimplePlugin(0x00000000l, false),
// new IBusSimplePlugin(
// interfaceKeepData = false,
// catchAccessFault = false
// ),
// new DBusSimplePlugin(
// catchAddressMisaligned = false,
// catchAccessFault = false
// ),
new IBusCachedPlugin(
config = InstructionCacheConfig(
cacheSize = 4096,
bytePerLine =32,
wayCount = 1,
wrappedMemAccess = true,
addressWidth = 32,
cpuDataWidth = 32,
memDataWidth = 32,
catchIllegalAccess = true,
catchAccessFault = true,
catchMemoryTranslationMiss = true,
asyncTagMemory = false,
twoStageLogic = true
)
// askMemoryTranslation = true,
// memoryTranslatorPortConfig = MemoryTranslatorPortConfig(
// portTlbSize = 4
// )
),
new DBusCachedPlugin(
config = new DataCacheConfig(
cacheSize = 4096,
bytePerLine = 32,
wayCount = 1,
addressWidth = 32,
cpuDataWidth = 32,
memDataWidth = 32,
catchAccessError = true,
catchIllegal = true,
catchUnaligned = true,
catchMemoryTranslationMiss = true
),
memoryTranslatorPortConfig = null
// memoryTranslatorPortConfig = MemoryTranslatorPortConfig(
// portTlbSize = 6
// )
),
new StaticMemoryTranslatorPlugin(
ioRange = _(31 downto 28) === 0xF
),
new DecoderSimplePlugin(
catchIllegalInstruction = true
),
new RegFilePlugin(
regFileReadyKind = plugin.SYNC,
zeroBoot = false
),
new IntAluPlugin,
new SrcPlugin(
separatedAddSub = false,
executeInsertion = true
),
new FullBarrielShifterPlugin,
new MulPlugin,
new DivPlugin,
new HazardSimplePlugin(
bypassExecute = true,
bypassMemory = true,
bypassWriteBack = true,
bypassWriteBackBuffer = true,
pessimisticUseSrc = false,
pessimisticWriteRegFile = false,
pessimisticAddressMatch = false
),
new DebugPlugin(ClockDomain.current.clone(reset = Bool().setName("debugReset"))),
new BranchPlugin(
earlyBranch = false,
catchAddressMisaligned = true,
prediction = STATIC
),
new CsrPlugin(
config = CsrPluginConfig(
catchIllegalAccess = false,
mvendorid = null,
marchid = null,
mimpid = null,
mhartid = null,
misaExtensionsInit = 66,
misaAccess = CsrAccess.NONE,
mtvecAccess = CsrAccess.NONE,
mtvecInit = 0x00000020l,
mepcAccess = CsrAccess.READ_WRITE,
mscratchGen = false,
mcauseAccess = CsrAccess.READ_ONLY,
mbadaddrAccess = CsrAccess.READ_ONLY,
mcycleAccess = CsrAccess.NONE,
minstretAccess = CsrAccess.NONE,
ecallGen = false,
wfiGen = false,
ucycleAccess = CsrAccess.NONE
)
),
new YamlPlugin("cpu0.yaml")
)
)
//CPU instanciation
val cpu = new VexRiscv(cpuConfig)
//CPU modifications to be an Avalon one
cpu.setDefinitionName("VexRiscvAxi4")
cpu.rework {
var iBus : Axi4ReadOnly = null
for (plugin <- cpuConfig.plugins) plugin match {
case plugin: IBusSimplePlugin => {
plugin.iBus.asDirectionLess() //Unset IO properties of iBus
iBus = master(plugin.iBus.toAxi4ReadOnly())
.setName("iBusAxi")
.addTag(ClockDomainTag(ClockDomain.current)) //Specify a clock domain to the iBus (used by QSysify)
}
case plugin: IBusCachedPlugin => {
plugin.iBus.asDirectionLess() //Unset IO properties of iBus
iBus = master(plugin.iBus.toAxi4ReadOnly())
.setName("iBusAxi")
.addTag(ClockDomainTag(ClockDomain.current)) //Specify a clock domain to the iBus (used by QSysify)
}
case plugin: DBusSimplePlugin => {
plugin.dBus.asDirectionLess()
master(plugin.dBus.toAxi4Shared().toAxi4().toFullConfig())
.setName("dBusAxi")
.addTag(ClockDomainTag(ClockDomain.current))
}
case plugin: DBusCachedPlugin => {
plugin.dBus.asDirectionLess()
master(plugin.dBus.toAxi4Shared().toAxi4().toFullConfig())
.setName("dBusAxi")
.addTag(ClockDomainTag(ClockDomain.current))
}
case plugin: DebugPlugin => {
plugin.io.bus.asDirectionLess()
val jtag = slave(new Jtag())
.setName("jtag")
jtag <> plugin.io.bus.fromJtag()
plugin.io.resetOut
.addTag(ResetEmitterTag(plugin.debugClockDomain))
.parent = null //Avoid the io bundle to be interpreted as a QSys conduit
}
case _ =>
}
for (plugin <- cpuConfig.plugins) plugin match {
case plugin: CsrPlugin => {
plugin.externalInterrupt
.addTag(InterruptReceiverTag(iBus, ClockDomain.current))
plugin.timerInterrupt
.addTag(InterruptReceiverTag(iBus, ClockDomain.current))
}
case _ =>
}
}
cpu
}
}
}