Compiling a heterogenous config with IceNIC

[Varun Gandhi]

Hi,

I’m getting compile-time errors when trying to build a heterogenous config that includes two boom cores and an IceNIC:

class DualBoomIceNicConfig extends Config(

  new chipyard.iobinders.WithUARTAdapter ++

  new chipyard.iobinders.WithTieOffInterrupts ++

  new chipyard.iobinders.WithBlackBoxSimMem ++

  new chipyard.iobinders.WithTiedOffDebug ++

  new chipyard.iobinders.WithSimSerial ++

  new testchipip.WithTSI ++

  new chipyard.config.WithBootROM ++

  new chipyard.config.WithUART ++

  new chipyard.config.WithL2TLBs(1024) ++

  new chipyard.config.WithRenumberHarts ++

  new icenet.WithIceNIC ++                                   

  new boom.common.WithLargeBooms ++

  new boom.common.WithNBoomCores(2) ++                       // 2 boom cores

  new freechips.rocketchip.subsystem.WithNoMMIOPort ++

  new freechips.rocketchip.subsystem.WithNoSlavePort ++

  new freechips.rocketchip.subsystem.WithInclusiveCache ++

  new freechips.rocketchip.subsystem.WithNExtTopInterrupts(0) ++

  new freechips.rocketchip.subsystem.WithNBigCores(0) ++

  new freechips.rocketchip.subsystem.WithCoherentBusTopology ++

  new freechips.rocketchip.system.BaseConfig)

Partial error log:

[error] (run-main-0) firrtl.passes.PassExceptions:                                                                                    

[error] firrtl.passes.CheckInitialization$RefNotInitializedException:@[ChipTop.scala 71:68:chipyard.TestHarness.DualBoomIceNicConfig.fir@894906.4] : [module ChipTop]  Reference system is not fully initialized.

[error]    : system.net.pauser.refresh <= VOID                                                                       

[error]firrtl.passes.CheckInitialization$RefNotInitializedException:@[ChipTop.scala71:68:chipyard.TestHarness.DualBoomIceNicConfig.fir@894906.4] : [module ChipTop]  Reference system is not fully initialized.  

I’ve compiled the toolchain with the riscv-tools option (not with esp-tools). Could that be the reason?

Best,

Varun

[Jerry Zhao]

You did not include a IOBinder which controls how the NIC IOs are connected. The options are chipyard.iobinders.WithLoopbackNIC or chipyard.iobinders.WithSimNIC. See the example RocketConfigs.

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