riscv/rocket-chip
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get rid of unused external mmio port

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This commit is contained in:
Howard Mao
2016-02-10 21:49:02 -08:00
parent 4b95374f0c
commit 9fb2216548
2 changed files with 5 additions and 15 deletions
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11
src/main/scala/Configs.scala
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@ -221,15 +221,14 @@ class DefaultConfig extends Config (
case CacheBlockBytes => Dump("CACHE_BLOCK_BYTES", 64)
case CacheBlockOffsetBits => log2Up(here(CacheBlockBytes))
case UseBackupMemoryPort => true
case MMIOBase => Dump("MEM_SIZE", BigInt(1 << 30)) // 1 GB
case ExternalIOStart => 2 * site(MMIOBase)
case MMIOBase => Dump("MEM_SIZE", BigInt(1L << 30)) // 1 GB
case DeviceTree => makeDeviceTree()
case GlobalAddrMap => {
val extraSize = site(ExternalIOStart) - site(MMIOBase)
AddrMap(
AddrMapEntry("conf", None, MemSubmap(extraSize / 2, genCsrAddrMap)),
AddrMapEntry("devices", None, MemSubmap(extraSize / 2, site(GlobalDeviceSet).getAddrMap)),
AddrMapEntry("io", Some(site(ExternalIOStart)), MemSize(2 * site(MMIOBase), AddrMapConsts.RW)))
AddrMapEntry("conf", None,
MemSubmap(BigInt(1L << 30), genCsrAddrMap)),
AddrMapEntry("devices", None,
MemSubmap(BigInt(1L << 31), site(GlobalDeviceSet).getAddrMap)))
}
case GlobalDeviceSet => {
val devset = new DeviceSet