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Fix support for no-bootROM systems #1458

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May 4, 2023
Merged

Fix support for no-bootROM systems #1458

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8 changes: 8 additions & 0 deletions generators/chipyard/src/main/scala/System.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,14 @@ class ChipyardSystem(implicit p: Parameters) extends ChipyardSubsystem

val bootROM = p(BootROMLocated(location)).map { BootROM.attach(_, this, CBUS) }
val maskROMs = p(MaskROMLocated(location)).map { MaskROM.attach(_, this, CBUS) }

// If there is no bootrom, the tile reset vector bundle will be tied to zero
if (bootROM.isEmpty) {
val fakeResetVectorSourceNode = BundleBridgeSource[UInt]()
InModuleBody { fakeResetVectorSourceNode.bundle := 0.U }
tileResetVectorNexusNode := fakeResetVectorSourceNode
}

override lazy val module = new ChipyardSystemModule(this)
}

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