riscv/rocket-chip
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rocketchip: remove clint; it moves into coreplex

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This commit is contained in:
Wesley W. Terpstra 2016-10-26 17:48:15 -07:00
parent 5090ff945b
commit f8a0829134
4 changed files with 3 additions and 36 deletions
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3
src/main/scala/rocketchip/ExampleTop.scala
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@ -13,7 +13,6 @@ class ExampleTop(q: Parameters) extends BaseTop(q)
with PeripheryBootROM
with PeripheryDebug
with PeripheryExtInterrupts
with PeripheryCoreplexLocalInterrupter
with PeripheryMasterMem
with PeripheryMasterAXI4MMIO
with PeripherySlave {
@ -24,7 +23,6 @@ class ExampleTopBundle[+L <: ExampleTop](p: Parameters, l: L) extends BaseTopBun
with PeripheryBootROMBundle
with PeripheryDebugBundle
with PeripheryExtInterruptsBundle
with PeripheryCoreplexLocalInterrupterBundle
with PeripheryMasterMemBundle
with PeripheryMasterAXI4MMIOBundle
with PeripherySlaveBundle
@ -33,7 +31,6 @@ class ExampleTopModule[+L <: ExampleTop, +B <: ExampleTopBundle[L]](p: Parameter
with PeripheryBootROMModule
with PeripheryDebugModule
with PeripheryExtInterruptsModule
with PeripheryCoreplexLocalInterrupterModule
with PeripheryMasterMemModule
with PeripheryMasterAXI4MMIOModule
with PeripherySlaveModule

28
src/main/scala/rocketchip/Periphery.scala
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@ -274,34 +274,6 @@ trait PeripherySlaveModule extends HasPeripheryParameters {
/////
trait PeripheryCoreplexLocalInterrupter extends LazyModule with HasPeripheryParameters {
implicit val p: Parameters
val peripheryBus: TLXbar
// CoreplexLocalInterrupter must be at least 64b if XLen >= 64
val beatBytes = max((outerMMIOParams(XLen) min 64) / 8, peripheryBusConfig.beatBytes)
val clintConfig = CoreplexLocalInterrupterConfig(beatBytes)
val clint = LazyModule(new CoreplexLocalInterrupter(clintConfig)(outerMMIOParams))
// The periphery bus is 32-bit, so we may need to adapt its width to XLen
clint.node := TLFragmenter(beatBytes, cacheBlockBytes)(TLWidthWidget(peripheryBusConfig.beatBytes)(peripheryBus.node))
}
trait PeripheryCoreplexLocalInterrupterBundle {
implicit val p: Parameters
}
trait PeripheryCoreplexLocalInterrupterModule extends HasPeripheryParameters {
implicit val p: Parameters
val outer: PeripheryCoreplexLocalInterrupter
val io: PeripheryCoreplexLocalInterrupterBundle
val coreplexIO: BaseCoreplexBundle
outer.clint.module.io.rtcTick := Counter(p(RTCPeriod)).inc()
coreplexIO.clint <> outer.clint.module.io.tiles
}
/////
trait PeripheryBootROM extends LazyModule with HasPeripheryParameters {
implicit val p: Parameters
val peripheryBus: TLXbar

2
src/main/scala/rocketchip/Utils.scala
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@ -107,7 +107,7 @@ object GenerateConfigString {
def apply(p: Parameters, c: CoreplexConfig, peripheryManagers: Seq[TLManagerParameters]) = {
val addrMap = p(GlobalAddrMap)
val plicAddr = addrMap("io:cbus:plic").start
val clint = CoreplexLocalInterrupterConfig(0, addrMap("io:TL2:clint").start)
val clint = CoreplexLocalInterrupterConfig()
val xLen = p(XLen)
val res = new StringBuilder
res append "plic {\n"

6
src/main/scala/uncore/devices/Prci.scala
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@ -20,7 +20,7 @@ class CoreplexLocalInterrupts extends Bundle {
val msip = Bool()
}
case class CoreplexLocalInterrupterConfig(beatBytes: Int, address: BigInt = 0x02000000) {
case class CoreplexLocalInterrupterConfig(address: BigInt = 0x02000000) {
def msipOffset(hart: Int) = hart * msipBytes
def msipAddress(hart: Int) = address + msipOffset(hart)
def timecmpOffset(hart: Int) = 0x4000 + hart * timecmpBytes
@ -48,8 +48,6 @@ trait CoreplexLocalInterrupterModule extends Module with HasRegMap with MixCorep
val timeWidth = 64
val regWidth = 32
// demand atomic accesses for RV64
require(c.beatBytes >= (p(rocket.XLen) min timeWidth)/8)
val time = Seq.fill(timeWidth/regWidth)(Reg(init=UInt(0, width = regWidth)))
when (io.rtcTick) {
@ -87,6 +85,6 @@ trait CoreplexLocalInterrupterModule extends Module with HasRegMap with MixCorep
/** Power, Reset, Clock, Interrupt */
// Magic TL2 Incantation to create a TL2 Slave
class CoreplexLocalInterrupter(c: CoreplexLocalInterrupterConfig)(implicit val p: Parameters)
extends TLRegisterRouter(c.address, 0, c.size, 0, c.beatBytes, false)(
extends TLRegisterRouter(c.address, size = c.size, beatBytes = p(rocket.XLen)/8, undefZero = false)(
new TLRegBundle((c, p), _) with CoreplexLocalInterrupterBundle)(
new TLRegModule((c, p), _, _) with CoreplexLocalInterrupterModule)