wu-arch/chipyard
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Make TinyRocketConfig work with multi-clock work

Browse Source
This commit is contained in:
abejgonzalez
2020-12-28 09:55:10 -08:00
parent fbb8ad3e61
commit b1cedf2d61
2 changed files with 12 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
generators/chipyard/src/main/scala/CustomBusTopologies.scala
View File

@@ -70,3 +70,13 @@ class WithMulticlockCoherentBusTopology extends Config((site, here, up) => {
l2 = site(BankedL2Key), l2 = site(BankedL2Key),
sbusToMbusXType = site(SbusToMbusXTypeKey))) sbusToMbusXType = site(SbusToMbusXTypeKey)))
}) })
class WithMulticlockIncoherentBusTopology extends Config((site, here, up) => {
case TLNetworkTopologyLocated(InSubsystem) => List(
JustOneBusTopologyParams(sbus = site(SystemBusKey)),
HierarchicalMulticlockBusTopologyParams(
pbus = site(PeripheryBusKey),
fbus = site(FrontBusKey),
cbus = site(ControlBusKey),
xTypes = SubsystemCrossingParams()))
})

4
generators/chipyard/src/main/scala/config/RocketConfigs.scala
View File

@@ -15,7 +15,7 @@ class TinyRocketConfig extends Config(
new chipyard.config.WithTLSerialLocation( new chipyard.config.WithTLSerialLocation(
freechips.rocketchip.subsystem.FBUS, freechips.rocketchip.subsystem.FBUS,
freechips.rocketchip.subsystem.PBUS) ++ // attach TL serial adapter to f/p busses freechips.rocketchip.subsystem.PBUS) ++ // attach TL serial adapter to f/p busses
new freechips.rocketchip.subsystem.WithIncoherentBusTopology ++ // use incoherent bus topology new chipyard.WithMulticlockIncoherentBusTopology ++ // use incoherent bus topology
new freechips.rocketchip.subsystem.WithNBanks(0) ++ // remove L2$ new freechips.rocketchip.subsystem.WithNBanks(0) ++ // remove L2$
new freechips.rocketchip.subsystem.WithNoMemPort ++ // remove backing memory new freechips.rocketchip.subsystem.WithNoMemPort ++ // remove backing memory
new freechips.rocketchip.subsystem.With1TinyCore ++ // single tiny rocket-core new freechips.rocketchip.subsystem.With1TinyCore ++ // single tiny rocket-core
@@ -189,7 +189,7 @@ class MMIORocketConfig extends Config(
class MulticlockRocketConfig extends Config( class MulticlockRocketConfig extends Config(
new freechips.rocketchip.subsystem.WithNBigCores(1) ++ new freechips.rocketchip.subsystem.WithNBigCores(1) ++
// Frequency specifications // Frequency specifications
new chipyard.config.WithTileFrequency(1600.0) ++ // Matches the maximum frequency of U540 new chipyard.config.WithTileFrequency(1600.0) ++ // Matches the maximum frequency of U540
new chipyard.config.WithSystemBusFrequency(800.0) ++ // Ditto new chipyard.config.WithSystemBusFrequency(800.0) ++ // Ditto
new chipyard.config.WithMemoryBusFrequency(1000.0) ++ // 2x the U540 freq (appropriate for a 128b Mbus) new chipyard.config.WithMemoryBusFrequency(1000.0) ++ // 2x the U540 freq (appropriate for a 128b Mbus)
new chipyard.config.WithPeripheryBusFrequency(100) ++ // Retains the default pbus frequency new chipyard.config.WithPeripheryBusFrequency(100) ++ // Retains the default pbus frequency