Merge pull request #518 from ucb-bar/dtm_regression

jtag_dtm: Update regression to run and pass.

regression/Makefile

@@ -218,9 +218,10 @@ stamps/%/emulator-torture-$(TORTURE_CONFIG).stamp: stamps/%/emulator-debug.stamp
 
 # Targets for JTAG DTM full-chain simulation
 
-OPENOCD_HEAD ?= riscv
+#OPENOCD_HEAD ?= riscv
 OPENOCD_INSTALL ?= $(abspath $(TOP))/openocd-install
-OPENOCD_VERSION = $(shell git ls-remote http://github.com/sifive/openocd.git $(OPENOCD_HEAD) | awk '{print $$1}')
+#OPENOCD_VERSION = $(shell git ls-remote http://github.com/sifive/openocd.git $(OPENOCD_HEAD) | awk '{print $$1}')
+OPENOCD_VERSION = 193f63094891cd3fe6a5032fef2c71d09f063ff4
 OPENOCD_DIR = $(OPENOCD_INSTALL)_$(OPENOCD_VERSION)/
 
 $(OPENOCD_DIR)/bin/openocd:
@@ -237,7 +238,7 @@ install_openocd: $(OPENOCD_DIR)/bin/openocd
 
 # If this is defined empty, then all tests would run.
 # Running a list of tests is not supported.
-JTAG_DTM_TEST ?= SimpleRegisterTest.test_s0
+JTAG_DTM_TEST ?= SimpleS0Test
 
 stamps/%/jtag-dtm-32-$(JTAG_DTM_TEST).stamp: install_openocd stamps/%/vsim-ndebug.stamp
 	$(abspath $(TOP))/riscv-tools/riscv-tests/debug/gdbserver.py \

src/main/scala/rocketchip/ExampleTop.scala

@@ -30,7 +30,7 @@ class ExampleTopModule[+L <: ExampleTop, +B <: ExampleTopBundle[L]](_outer: L, _
 
 class ExampleRocketTop(implicit p: Parameters) extends ExampleTop
     with PeripheryBootROM
-    with PeripheryDTM
+    with PeripheryDebug
     with PeripheryCounter
     with HardwiredResetVector
     with RocketPlexMaster {
@@ -39,14 +39,14 @@ class ExampleRocketTop(implicit p: Parameters) extends ExampleTop
 
 class ExampleRocketTopBundle[+L <: ExampleRocketTop](_outer: L) extends ExampleTopBundle(_outer)
     with PeripheryBootROMBundle
-    with PeripheryDTMBundle
+    with PeripheryDebugBundle
     with PeripheryCounterBundle
     with HardwiredResetVectorBundle
     with RocketPlexMasterBundle
 
 class ExampleRocketTopModule[+L <: ExampleRocketTop, +B <: ExampleRocketTopBundle[L]](_outer: L, _io: () => B) extends ExampleTopModule(_outer, _io)
     with PeripheryBootROMModule
-    with PeripheryDTMModule
+    with PeripheryDebugModule
     with PeripheryCounterModule
     with HardwiredResetVectorModule
     with RocketPlexMasterModule

src/main/scala/rocketchip/TestHarness.scala

@@ -26,7 +26,11 @@ class TestHarness()(implicit p: Parameters) extends Module {
     }
   }
 
-  val dtm = Module(new SimDTM).connect(clock, reset, dut.io.debug, io.success)
+  if (!p(IncludeJtagDTM)) {
+    val dtm = Module(new SimDTM).connect(clock, reset, dut.io.debug.get, io.success)
+  } else {
+     val jtag = Module(new JTAGVPI).connect(dut.io.jtag.get, reset, io.success)		
+  }
 
   val mmio_sim = Module(LazyModule(new SimAXIMem(4096)).module)
   mmio_sim.io.axi4 <> dut.io.mmio_axi4