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axi4: RegisterRouter; concurrent response illegal in AXI

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This commit is contained in:
Wesley W. Terpstra 2017-04-21 16:59:59 -07:00
parent 5163ccd11f
commit f1217519f1
1 changed files with 2 additions and 2 deletions
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4
src/main/scala/uncore/axi4/RegisterRouter.scala
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@ -17,7 +17,7 @@ class AXI4RegisterNode(address: AddressSet, concurrency: Int = 0, beatBytes: Int
supportsRead = TransferSizes(1, beatBytes),
interleavedId = Some(0))),
beatBytes = beatBytes,
minLatency = min(concurrency, 1)))) // the Queue adds at most one cycle
minLatency = 1)))
{
require (address.contiguous)
@ -54,7 +54,7 @@ class AXI4RegisterNode(address: AddressSet, concurrency: Int = 0, beatBytes: Int
// Invoke the register map builder and make it Irrevocable
val out = Queue.irrevocable(
RegMapper(beatBytes, concurrency, undefZero, in, mapping:_*),
entries = 1, flow = true)
entries = 2)
// No flow control needed
out.ready := Mux(out.bits.read, r.ready, b.ready)