riscv/rocket-chip
1
0
Fork 0
Code Releases Activity

reset_catch: Allow Test Mode Overrides

Browse Source
This commit is contained in:
Megan Wachs
2017-09-12 16:05:13 -07:00
parent 063ca0ed4a
commit 82c00cb656
3 changed files with 30 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
src/main/scala/util/ResetCatchAndSync.scala
View File

@ -11,22 +11,30 @@ import Chisel._
class ResetCatchAndSync (sync: Int = 3) extends Module {
override def desiredName = s"ResetCatchAndSync_d${sync}"
val io = new Bundle {
val sync_reset = Bool(OUTPUT)
val psd_test_reset = Bool(INPUT)
val psd_test_mode = Bool(INPUT)
}
io.sync_reset := ~AsyncResetSynchronizerShiftReg(Bool(true), sync)
io.sync_reset := Mux(io.psd_test_mode, io.psd_test_reset,
~AsyncResetSynchronizerShiftReg(Bool(true), sync))
}
object ResetCatchAndSync {
def apply(clk: Clock, rst: Bool, sync: Int = 3, name: Option[String] = None): Bool = {
def apply(clk: Clock, rst: Bool, sync: Int = 3, name: Option[String] = None,
psd_test_mode: Bool = Bool(false), psd_test_reset: Bool = Bool(false)): Bool = {
val catcher = Module (new ResetCatchAndSync(sync))
if (name.isDefined) {catcher.suggestName(name.get)}
catcher.clock := clk
catcher.reset := rst
catcher.io.psd_test_mode := psd_test_mode
catcher.io.psd_test_reset:= psd_test_reset
catcher.io.sync_reset
}
@ -34,4 +42,9 @@ object ResetCatchAndSync {
def apply(clk: Clock, rst: Bool, sync: Int, name: String): Bool = apply(clk, rst, sync, Some(name))
def apply(clk: Clock, rst: Bool, name: String): Bool = apply(clk, rst, name = Some(name))
def apply(clk: Clock, rst: Bool, sync: Int, name: String, psd_test_mode: Bool, psd_test_reset: Bool): Bool = apply(clk, rst, sync, Some(name),
psd_test_mode, psd_test_reset)
def apply(clk: Clock, rst: Bool, name: String, psd_test_mode: Bool, psd_test_reset: Bool): Bool = apply(clk, rst, name = Some(name),
psd_test_mode = psd_test_mode, psd_test_reset = psd_test_reset)
}