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Fix WithAXI4MMIOPunchthrough IO binder to use the SBUS instead of MBUS. Also adds a config and test

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This commit is contained in:
John Wright
2021-11-14 18:31:26 -08:00
committed by abejgonzalez
parent 58f36423b1
commit b1b047bdc2
3 changed files with 9 additions and 2 deletions
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2
generators/chipyard/src/main/scala/IOBinders.scala
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@@ -297,7 +297,7 @@ class WithAXI4MMIOPunchthrough extends OverrideLazyIOBinder({
(system: CanHaveMasterAXI4MMIOPort) => {
implicit val p: Parameters = GetSystemParameters(system)
val clockSinkNode = p(ExtBus).map(_ => ClockSinkNode(Seq(ClockSinkParameters())))
clockSinkNode.map(_ := system.asInstanceOf[HasTileLinkLocations].locateTLBusWrapper(MBUS).fixedClockNode)
clockSinkNode.map(_ := system.asInstanceOf[HasTileLinkLocations].locateTLBusWrapper(SBUS).fixedClockNode)
def clockBundle = clockSinkNode.get.in.head._1
InModuleBody {

6
generators/chipyard/src/main/scala/config/RocketConfigs.scala
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@@ -143,6 +143,12 @@ class ScratchpadOnlyRocketConfig extends Config(
new chipyard.config.AbstractConfig)
// DOC include end: l1scratchpadrocket
class MMIOScratchpadOnlyRocketConfig extends Config(
new freechips.rocketchip.subsystem.WithDefaultMMIOPort ++ // add default external master port
new freechips.rocketchip.subsystem.WithDefaultSlavePort ++ // add default external slave port
new ScratchpadOnlyRocketConfig
)
class L1ScratchpadRocketConfig extends Config(
new chipyard.config.WithRocketICacheScratchpad ++ // use rocket ICache scratchpad
new chipyard.config.WithRocketDCacheScratchpad ++ // use rocket DCache scratchpad