xref: /XiangShan/src/main/scala/system/SoC.scala (revision 42b75a597e916f6a6887cb8bc626483d0d2645dd)
1/***************************************************************************************
2* Copyright (c) 2020-2021 Institute of Computing Technology, Chinese Academy of Sciences
3* Copyright (c) 2020-2021 Peng Cheng Laboratory
4*
5* XiangShan is licensed under Mulan PSL v2.
6* You can use this software according to the terms and conditions of the Mulan PSL v2.
7* You may obtain a copy of Mulan PSL v2 at:
8*          http://license.coscl.org.cn/MulanPSL2
9*
10* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
11* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
12* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
13*
14* See the Mulan PSL v2 for more details.
15***************************************************************************************/
16
17package system
18
19import org.chipsalliance.cde.config.{Field, Parameters}
20import chisel3._
21import chisel3.util._
22import device.{DebugModule, TLPMA, TLPMAIO, AXI4MemEncrypt}
23import freechips.rocketchip.amba.axi4._
24import freechips.rocketchip.devices.debug.DebugModuleKey
25import freechips.rocketchip.devices.tilelink._
26import freechips.rocketchip.diplomacy.{AddressSet, IdRange, InModuleBody, LazyModule, LazyModuleImp, MemoryDevice, RegionType, SimpleDevice, TransferSizes}
27import freechips.rocketchip.interrupts.{IntSourceNode, IntSourcePortSimple}
28import freechips.rocketchip.regmapper.{RegField, RegFieldDesc, RegFieldGroup}
29import freechips.rocketchip.tilelink._
30import freechips.rocketchip.util.AsyncQueueParams
31import huancun._
32import top.BusPerfMonitor
33import utility.{ReqSourceKey, TLClientsMerger, TLEdgeBuffer, TLLogger}
34import xiangshan.backend.fu.{MemoryRange, PMAConfigEntry, PMAConst}
35import xiangshan.{DebugOptionsKey, PMParameKey, XSTileKey}
36import coupledL2.{EnableCHI, L2Param}
37import coupledL2.tl2chi.CHIIssue
38import openLLC.OpenLLCParam
39
40case object SoCParamsKey extends Field[SoCParameters]
41case object CVMParamskey extends Field[CVMParameters]
42
43case class CVMParameters
44(
45  MEMENCRange: AddressSet = AddressSet(0x38030000L, 0xfff),
46  KeyIDBits: Int = 0,
47  MemencPipes: Int = 4,
48  HasMEMencryption: Boolean = false,
49  HasDelayNoencryption: Boolean = false, // Test specific
50)
51
52case class SoCParameters
53(
54  EnableILA: Boolean = false,
55  PAddrBits: Int = 48,
56  PmemRanges: Seq[MemoryRange] = Seq(MemoryRange(0x80000000L, 0x80000000000L)),
57  PMAConfigs: Seq[PMAConfigEntry] = Seq(
58    PMAConfigEntry(0x0L, range = 0x1000000000000L, a = 3),
59    PMAConfigEntry(0x80000000000L, c = true, atomic = true, a = 1, x = true, w = true, r = true),
60    PMAConfigEntry(0x80000000L, a = 1, w = true, r = true),
61    PMAConfigEntry(0x3A000000L, a = 1),
62    PMAConfigEntry(0x39002000L, a = 1, w = true, r = true),
63    PMAConfigEntry(0x39000000L, a = 1, w = true, r = true),
64    PMAConfigEntry(0x38022000L, a = 1, w = true, r = true),
65    PMAConfigEntry(0x38021000L, a = 1, x = true, w = true, r = true),
66    PMAConfigEntry(0x38020000L, a = 1, w = true, r = true),
67    PMAConfigEntry(0x30050000L, a = 1, w = true, r = true), // FIXME: GPU space is cacheable?
68    PMAConfigEntry(0x30010000L, a = 1, w = true, r = true),
69    PMAConfigEntry(0x20000000L, a = 1, x = true, w = true, r = true),
70    PMAConfigEntry(0x10000000L, a = 1, w = true, r = true),
71    PMAConfigEntry(0)
72  ),
73  CLINTRange: AddressSet = AddressSet(0x38000000L, CLINTConsts.size - 1),
74  BEURange: AddressSet = AddressSet(0x38010000L, 0xfff),
75  PLICRange: AddressSet = AddressSet(0x3c000000L, PLICConsts.size(PLICConsts.maxMaxHarts) - 1),
76  PLLRange: AddressSet = AddressSet(0x3a000000L, 0xfff),
77  UARTLiteForDTS: Boolean = true, // should be false in SimMMIO
78  extIntrs: Int = 64,
79  L3NBanks: Int = 4,
80  L3CacheParamsOpt: Option[HCCacheParameters] = Some(HCCacheParameters(
81    name = "L3",
82    level = 3,
83    ways = 8,
84    sets = 2048 // 1MB per bank
85  )),
86  OpenLLCParamsOpt: Option[OpenLLCParam] = None,
87  XSTopPrefix: Option[String] = None,
88  NodeIDWidthList: Map[String, Int] = Map(
89    "B" -> 7,
90    "C" -> 9,
91    "E.b" -> 11
92  ),
93  NumHart: Int = 64,
94  NumIRFiles: Int = 7,
95  NumIRSrc: Int = 256,
96  UseXSNoCTop: Boolean = false,
97  UseXSNoCDiffTop: Boolean = false,
98  UseXSTileDiffTop: Boolean = false,
99  IMSICBusType: device.IMSICBusType.Value = device.IMSICBusType.AXI,
100  IMSICParams: aia.IMSICParams = aia.IMSICParams(
101    imsicIntSrcWidth = 8,
102    mAddr = 0x3A800000,
103    sgAddr = 0x3B000000,
104    geilen = 5,
105    vgeinWidth = 6,
106    iselectWidth = 12,
107    EnableImsicAsyncBridge = true,
108    HasTEEIMSIC = false
109  ),
110  SeperateDMBus: Boolean = false,
111  EnableCHIAsyncBridge: Option[AsyncQueueParams] = Some(AsyncQueueParams(depth = 16, sync = 3, safe = false)),
112  EnableClintAsyncBridge: Option[AsyncQueueParams] = Some(AsyncQueueParams(depth = 1, sync = 3, safe = false)),
113  EnableDMAsyncBridge: Option[AsyncQueueParams] = Some(AsyncQueueParams(depth = 1, sync = 3, safe = false))
114){
115  require(
116    L3CacheParamsOpt.isDefined ^ OpenLLCParamsOpt.isDefined || L3CacheParamsOpt.isEmpty && OpenLLCParamsOpt.isEmpty,
117    "Atmost one of L3CacheParamsOpt and OpenLLCParamsOpt should be defined"
118  )
119  // L3 configurations
120  val L3InnerBusWidth = 256
121  val L3BlockSize = 64
122  // on chip network configurations
123  val L3OuterBusWidth = 256
124  val UARTLiteRange = AddressSet(0x40600000, if (UARTLiteForDTS) 0x3f else 0xf)
125}
126
127trait HasSoCParameter {
128  implicit val p: Parameters
129
130  val soc = p(SoCParamsKey)
131  val cvm = p(CVMParamskey)
132  val debugOpts = p(DebugOptionsKey)
133  val tiles = p(XSTileKey)
134  val enableCHI = p(EnableCHI)
135  val issue = p(CHIIssue)
136
137  val NumCores = tiles.size
138  val EnableILA = soc.EnableILA
139
140  // Parameters for trace extension
141  val TraceTraceGroupNum          = tiles.head.traceParams.TraceGroupNum
142  val TraceCauseWidth             = tiles.head.XLEN
143  val TraceTvalWidth              = tiles.head.traceParams.IaddrWidth
144  val TracePrivWidth              = tiles.head.traceParams.PrivWidth
145  val TraceIaddrWidth             = tiles.head.traceParams.IaddrWidth
146  val TraceItypeWidth             = tiles.head.traceParams.ItypeWidth
147  val TraceIretireWidthCompressed = log2Up(tiles.head.RenameWidth * tiles.head.CommitWidth * 2)
148  val TraceIlastsizeWidth         = tiles.head.traceParams.IlastsizeWidth
149
150  // L3 configurations
151  val L3InnerBusWidth = soc.L3InnerBusWidth
152  val L3BlockSize = soc.L3BlockSize
153  val L3NBanks = soc.L3NBanks
154
155  // on chip network configurations
156  val L3OuterBusWidth = soc.L3OuterBusWidth
157
158  val NrExtIntr = soc.extIntrs
159
160  val SetIpNumValidSize = soc.NumHart * soc.NumIRFiles
161
162  val NumIRSrc = soc.NumIRSrc
163
164  val SeperateDMBus = soc.SeperateDMBus
165
166  val EnableCHIAsyncBridge = if (enableCHI && soc.EnableCHIAsyncBridge.isDefined)
167    soc.EnableCHIAsyncBridge else None
168  val EnableClintAsyncBridge = soc.EnableClintAsyncBridge
169  val EnableDMAsyncBridge = if (SeperateDMBus && soc.EnableDMAsyncBridge.isDefined)
170    soc.EnableDMAsyncBridge else None
171
172  def HasMEMencryption = cvm.HasMEMencryption
173  require((cvm.HasMEMencryption && (cvm.KeyIDBits > 0)) || (!cvm.HasMEMencryption && (cvm.KeyIDBits == 0)),
174    "HasMEMencryption most set with KeyIDBits > 0")
175}
176
177trait HasPeripheralRanges {
178  implicit val p: Parameters
179
180  private def cvm = p(CVMParamskey)
181  private def soc = p(SoCParamsKey)
182  private def dm = p(DebugModuleKey)
183  private def pmParams = p(PMParameKey)
184
185  private def mmpma = pmParams.mmpma
186
187  def onChipPeripheralRanges: Map[String, AddressSet] = Map(
188    "CLINT" -> soc.CLINTRange,
189    "BEU"   -> soc.BEURange,
190    "PLIC"  -> soc.PLICRange,
191    "PLL"   -> soc.PLLRange,
192    "UART"  -> soc.UARTLiteRange,
193    "DEBUG" -> dm.get.address,
194    "MMPMA" -> AddressSet(mmpma.address, mmpma.mask)
195  ) ++ (
196    if (soc.L3CacheParamsOpt.map(_.ctrl.isDefined).getOrElse(false))
197      Map("L3CTL" -> AddressSet(soc.L3CacheParamsOpt.get.ctrl.get.address, 0xffff))
198    else
199      Map()
200  ) ++ (
201    if (cvm.HasMEMencryption)
202      Map("MEMENC"  -> cvm.MEMENCRange)
203    else
204      Map()
205  )
206
207  def peripheralRange = onChipPeripheralRanges.values.foldLeft(Seq(AddressSet(0x0, 0x7fffffffL))) { (acc, x) =>
208    acc.flatMap(_.subtract(x))
209  }
210}
211
212class ILABundle extends Bundle {}
213
214
215abstract class BaseSoC()(implicit p: Parameters) extends LazyModule with HasSoCParameter with HasPeripheralRanges {
216  val bankedNode = Option.when(!enableCHI)(BankBinder(L3NBanks, L3BlockSize))
217  val peripheralXbar = Option.when(!enableCHI)(TLXbar())
218  val l3_xbar = Option.when(!enableCHI)(TLXbar())
219  val l3_banked_xbar = Option.when(!enableCHI)(TLXbar())
220
221  val soc_xbar = Option.when(enableCHI)(AXI4Xbar())
222}
223
224// We adapt the following three traits from rocket-chip.
225// Source: rocket-chip/src/main/scala/subsystem/Ports.scala
226trait HaveSlaveAXI4Port {
227  this: BaseSoC =>
228
229  val idBits = 14
230
231  val l3FrontendAXI4Node = AXI4MasterNode(Seq(AXI4MasterPortParameters(
232    Seq(AXI4MasterParameters(
233      name = "dma",
234      id = IdRange(0, 1 << idBits)
235    ))
236  )))
237
238  if (l3_xbar.isDefined) {
239    val errorDevice = LazyModule(new TLError(
240      params = DevNullParams(
241        address = Seq(AddressSet(0x0, 0x7fffffffL)),
242        maxAtomic = 8,
243        maxTransfer = 64),
244      beatBytes = L3InnerBusWidth / 8
245    ))
246    errorDevice.node :=
247      l3_xbar.get :=
248      TLFIFOFixer() :=
249      TLWidthWidget(32) :=
250      AXI4ToTL() :=
251      AXI4UserYanker(Some(1)) :=
252      AXI4Fragmenter() :=
253      AXI4Buffer() :=
254      AXI4Buffer() :=
255      AXI4IdIndexer(1) :=
256      l3FrontendAXI4Node
257  }
258
259  val dma = InModuleBody {
260    l3FrontendAXI4Node.makeIOs()
261  }
262}
263
264trait HaveAXI4MemPort {
265  this: BaseSoC =>
266  val device = new MemoryDevice
267  // 48-bit physical address
268  val memRange = AddressSet(0x00000000L, 0xffffffffffffL).subtract(AddressSet(0x0L, 0x7fffffffL))
269  val memAXI4SlaveNode = AXI4SlaveNode(Seq(
270    AXI4SlavePortParameters(
271      slaves = Seq(
272        AXI4SlaveParameters(
273          address = memRange,
274          regionType = RegionType.UNCACHED,
275          executable = true,
276          supportsRead = TransferSizes(1, L3BlockSize),
277          supportsWrite = TransferSizes(1, L3BlockSize),
278          interleavedId = Some(0),
279          resources = device.reg("mem")
280        )
281      ),
282      beatBytes = L3OuterBusWidth / 8,
283      requestKeys = if (debugOpts.FPGAPlatform) Seq() else Seq(ReqSourceKey),
284    )
285  ))
286
287  val mem_xbar = TLXbar()
288  val l3_mem_pmu = BusPerfMonitor(name = "L3_Mem", enable = !debugOpts.FPGAPlatform && !enableCHI, stat_latency = true)
289  val axi4mem_node = AXI4IdentityNode()
290
291  if (enableCHI) {
292    axi4mem_node :=
293      soc_xbar.get
294  } else {
295    mem_xbar :=*
296      TLBuffer.chainNode(2) :=
297      TLCacheCork() :=
298      l3_mem_pmu :=
299      TLClientsMerger() :=
300      TLXbar() :=*
301      bankedNode.get
302
303    mem_xbar :=
304      TLWidthWidget(8) :=
305      TLBuffer.chainNode(3, name = Some("PeripheralXbar_to_MemXbar_buffer")) :=
306      peripheralXbar.get
307
308    axi4mem_node :=
309      TLToAXI4() :=
310      TLSourceShrinker(64) :=
311      TLWidthWidget(L3OuterBusWidth / 8) :=
312      TLBuffer.chainNode(2) :=
313      mem_xbar
314  }
315  val axi4memencrpty = Option.when(HasMEMencryption)(LazyModule(new AXI4MemEncrypt(cvm.MEMENCRange)))
316  if (HasMEMencryption) {
317    memAXI4SlaveNode :=
318      AXI4Buffer() :=
319      AXI4Buffer() :=
320      AXI4Buffer() :=
321      AXI4IdIndexer(idBits = 14) :=
322      AXI4UserYanker() :=
323      axi4memencrpty.get.node
324
325    axi4memencrpty.get.node :=
326      AXI4Deinterleaver(L3BlockSize) :=
327      axi4mem_node
328  } else {
329    memAXI4SlaveNode :=
330      AXI4Buffer() :=
331      AXI4Buffer() :=
332      AXI4Buffer() :=
333      AXI4IdIndexer(idBits = 14) :=
334      AXI4UserYanker() :=
335      AXI4Deinterleaver(L3BlockSize) :=
336      axi4mem_node
337  }
338
339
340  val memory = InModuleBody {
341    memAXI4SlaveNode.makeIOs()
342  }
343}
344
345trait HaveAXI4PeripheralPort { this: BaseSoC =>
346  val uartDevice = new SimpleDevice("serial", Seq("xilinx,uartlite"))
347  val uartParams = AXI4SlaveParameters(
348    address = Seq(soc.UARTLiteRange),
349    regionType = RegionType.UNCACHED,
350    supportsRead = TransferSizes(1, 32),
351    supportsWrite = TransferSizes(1, 32),
352    resources = uartDevice.reg
353  )
354  val peripheralNode = AXI4SlaveNode(Seq(AXI4SlavePortParameters(
355    Seq(AXI4SlaveParameters(
356      address = peripheralRange,
357      regionType = RegionType.UNCACHED,
358      supportsRead = TransferSizes(1, 32),
359      supportsWrite = TransferSizes(1, 32),
360      interleavedId = Some(0)
361    ), uartParams),
362    beatBytes = 8
363  )))
364
365  val axi4peripheral_node = AXI4IdentityNode()
366  val error_xbar = Option.when(enableCHI)(TLXbar())
367
368  peripheralNode :=
369    AXI4UserYanker() :=
370    AXI4IdIndexer(idBits = 2) :=
371    AXI4Buffer() :=
372    AXI4Buffer() :=
373    AXI4Buffer() :=
374    AXI4Buffer() :=
375    AXI4UserYanker() :=
376    // AXI4Deinterleaver(8) :=
377    axi4peripheral_node
378
379  if (enableCHI) {
380    val error = LazyModule(new TLError(
381      params = DevNullParams(
382        address = Seq(AddressSet(0x1000000000000L, 0xffffffffffffL)),
383        maxAtomic = 8,
384        maxTransfer = 64),
385      beatBytes = 8
386    ))
387    error.node := error_xbar.get
388    axi4peripheral_node :=
389      AXI4Deinterleaver(8) :=
390      TLToAXI4() :=
391      error_xbar.get :=
392      TLBuffer.chainNode(2, Some("llc_to_peripheral_buffer")) :=
393      TLFIFOFixer() :=
394      TLWidthWidget(L3OuterBusWidth / 8) :=
395      AXI4ToTL() :=
396      AXI4UserYanker() :=
397      soc_xbar.get
398  } else {
399    axi4peripheral_node :=
400      AXI4Deinterleaver(8) :=
401      TLToAXI4() :=
402      TLBuffer.chainNode(3) :=
403      peripheralXbar.get
404  }
405
406  val peripheral = InModuleBody {
407    peripheralNode.makeIOs()
408  }
409
410}
411
412class MemMisc()(implicit p: Parameters) extends BaseSoC
413  with HaveAXI4MemPort
414  with PMAConst
415  with HaveAXI4PeripheralPort
416{
417
418  val peripheral_ports = Option.when(!enableCHI)(Array.fill(NumCores) { TLTempNode() })
419  val core_to_l3_ports = Option.when(!enableCHI)(Array.fill(NumCores) { TLTempNode() })
420
421  val l3_in = TLTempNode()
422  val l3_out = TLTempNode()
423
424  val device_xbar = Option.when(enableCHI)(TLXbar())
425  device_xbar.foreach(_ := error_xbar.get)
426
427  if (l3_banked_xbar.isDefined) {
428    l3_in :*= TLEdgeBuffer(_ => true, Some("L3_in_buffer")) :*= l3_banked_xbar.get
429    l3_banked_xbar.get := TLBuffer.chainNode(2) := l3_xbar.get
430  }
431  bankedNode match {
432    case Some(bankBinder) =>
433      bankBinder :*= TLLogger("MEM_L3", !debugOpts.FPGAPlatform && debugOpts.AlwaysBasicDB) :*= l3_out
434    case None =>
435  }
436
437  if(soc.L3CacheParamsOpt.isEmpty){
438    l3_out :*= l3_in
439  }
440
441  if (!enableCHI) {
442    for (port <- peripheral_ports.get) {
443      peripheralXbar.get := TLBuffer.chainNode(2, Some("L2_to_L3_peripheral_buffer")) := port
444    }
445  }
446
447  core_to_l3_ports.foreach { case _ =>
448    for ((core_out, i) <- core_to_l3_ports.get.zipWithIndex){
449      l3_banked_xbar.get :=*
450        TLLogger(s"L3_L2_$i", !debugOpts.FPGAPlatform && debugOpts.AlwaysBasicDB) :=*
451        TLBuffer() :=
452        core_out
453    }
454  }
455
456  val clint = LazyModule(new CLINT(CLINTParams(soc.CLINTRange.base), 8))
457  if (enableCHI) { clint.node := device_xbar.get }
458  else { clint.node := peripheralXbar.get }
459
460  class IntSourceNodeToModule(val num: Int)(implicit p: Parameters) extends LazyModule {
461    val sourceNode = IntSourceNode(IntSourcePortSimple(num, ports = 1, sources = 1))
462    class IntSourceNodeToModuleImp(wrapper: LazyModule) extends LazyModuleImp(wrapper) {
463      val in = IO(Input(Vec(num, Bool())))
464      in.zip(sourceNode.out.head._1).foreach{ case (i, s) => s := i }
465    }
466    lazy val module = new IntSourceNodeToModuleImp(this)
467  }
468
469  val plic = LazyModule(new TLPLIC(PLICParams(soc.PLICRange.base), 8))
470  val plicSource = LazyModule(new IntSourceNodeToModule(NrExtIntr))
471
472  plic.intnode := plicSource.sourceNode
473  if (enableCHI) { plic.node := device_xbar.get }
474  else { plic.node := peripheralXbar.get }
475
476  val pll_node = TLRegisterNode(
477    address = Seq(soc.PLLRange),
478    device = new SimpleDevice("pll_ctrl", Seq()),
479    beatBytes = 8,
480    concurrency = 1
481  )
482  if (enableCHI) { pll_node := device_xbar.get }
483  else { pll_node := peripheralXbar.get }
484
485  val debugModule = LazyModule(new DebugModule(NumCores)(p))
486  val debugModuleXbarOpt = Option.when(SeperateDMBus)(TLXbar())
487  if (enableCHI) {
488    if (SeperateDMBus) {
489      debugModule.debug.node := debugModuleXbarOpt.get
490    } else {
491      debugModule.debug.node := device_xbar.get
492    }
493    debugModule.debug.dmInner.dmInner.sb2tlOpt.foreach { sb2tl =>
494      error_xbar.get := sb2tl.node
495    }
496  } else {
497    if (SeperateDMBus) {
498      debugModule.debug.node := debugModuleXbarOpt.get
499    } else {
500      debugModule.debug.node := peripheralXbar.get
501    }
502    debugModule.debug.dmInner.dmInner.sb2tlOpt.foreach { sb2tl  =>
503      l3_xbar.get := TLBuffer() := TLWidthWidget(1) := sb2tl.node
504    }
505  }
506
507  val pma = LazyModule(new TLPMA)
508  if (enableCHI) {
509    pma.node := TLBuffer.chainNode(4) := device_xbar.get
510    if (HasMEMencryption) {
511      axi4memencrpty.get.ctrl_node := TLToAPB() := device_xbar.get
512    }
513  } else {
514    pma.node := TLBuffer.chainNode(4) := peripheralXbar.get
515    if (HasMEMencryption) {
516      axi4memencrpty.get.ctrl_node := TLToAPB() := peripheralXbar.get
517    }
518  }
519
520  class SoCMiscImp(wrapper: LazyModule) extends LazyModuleImp(wrapper) {
521
522    val debug_module_io = IO(new debugModule.DebugModuleIO)
523    val ext_intrs = IO(Input(UInt(NrExtIntr.W)))
524    val rtc_clock = IO(Input(Bool()))
525    val pll0_lock = IO(Input(Bool()))
526    val pll0_ctrl = IO(Output(Vec(6, UInt(32.W))))
527    val cacheable_check = IO(new TLPMAIO)
528    val clintTime = IO(Output(ValidIO(UInt(64.W))))
529
530    debugModule.module.io <> debug_module_io
531
532    // sync external interrupts
533    require(plicSource.module.in.length == ext_intrs.getWidth)
534    for ((plic_in, interrupt) <- plicSource.module.in.zip(ext_intrs.asBools)) {
535      val ext_intr_sync = RegInit(0.U(3.W))
536      ext_intr_sync := Cat(ext_intr_sync(1, 0), interrupt)
537      plic_in := ext_intr_sync(2)
538    }
539
540    pma.module.io <> cacheable_check
541
542    if (HasMEMencryption) {
543      val cnt = Counter(true.B, 8)._1
544      axi4memencrpty.get.module.io.random_val := axi4memencrpty.get.module.io.random_req && cnt(2).asBool
545      axi4memencrpty.get.module.io.random_data := cnt(0).asBool
546    }
547    // positive edge sampling of the lower-speed rtc_clock
548    val rtcTick = RegInit(0.U(3.W))
549    rtcTick := Cat(rtcTick(1, 0), rtc_clock)
550    clint.module.io.rtcTick := rtcTick(1) && !rtcTick(2)
551
552    val pll_ctrl_regs = Seq.fill(6){ RegInit(0.U(32.W)) }
553    val pll_lock = RegNext(next = pll0_lock, init = false.B)
554
555    clintTime := clint.module.io.time
556
557    pll0_ctrl <> VecInit(pll_ctrl_regs)
558
559    pll_node.regmap(
560      0x000 -> RegFieldGroup(
561        "Pll", Some("PLL ctrl regs"),
562        pll_ctrl_regs.zipWithIndex.map{
563          case (r, i) => RegField(32, r, RegFieldDesc(
564            s"PLL_ctrl_$i",
565            desc = s"PLL ctrl register #$i"
566          ))
567        } :+ RegField.r(32, Cat(0.U(31.W), pll_lock), RegFieldDesc(
568          "PLL_lock",
569          "PLL lock register"
570        ))
571      )
572    )
573  }
574
575  lazy val module = new SoCMiscImp(this)
576}
577
578class SoCMisc()(implicit p: Parameters) extends MemMisc
579  with HaveSlaveAXI4Port
580
581