I/O changes and SkipFuncEvents to increase FreeBSD compatibility.

SConscript:
    Added kern/freebsd/freebsd_events.cc.
arch/alpha/isa_traits.hh:
    Added Argument to support replacement of calibrate_clocks function in FreeBSD.
dev/ns_gige.hh:
    Fixed NIC model number typo.
dev/tsunami_io.cc:
    Added support for RTC writes and PIC 2 mask reads.  Made RTC static member.
dev/tsunami_io.hh:
    Made RTC static member.
kern/freebsd/freebsd_system.cc:
    Added events to skip functions in FreeBSD.
kern/freebsd/freebsd_system.hh:
    Added events to skip certain functions.

--HG--
extra : convert_revision : 8aaca51d3f9b1bb601722a5bae240aae77b445db

dev/ns_gige.hh

@@ -99,7 +99,7 @@ class Bus;
 class PciConfigAll;
 
 /**
- * NS DP82830 Ethernet device model
+ * NS DP83820 Ethernet device model
  */
 class NSGigE : public PciDev
 {

dev/tsunami_io.cc

@@ -52,6 +52,8 @@ using namespace std;
 
 #define UNIX_YEAR_OFFSET 52
 
+struct tm TsunamiIO::tm = { 0 };
+
 // Timer Event for Periodic interrupt of RTC
 TsunamiIO::RTCEvent::RTCEvent(Tsunami* t, Tick i)
     : Event(&mainEventQueue), tsunami(t), interval(i)
@@ -67,6 +69,9 @@ TsunamiIO::RTCEvent::process()
     schedule(curTick + interval);
     //Actually interrupt the processor here
     tsunami->cchip->postRTC();
+
+    // For FreeBSD
+    tm.tm_sec++;
 }
 
 const char *
@@ -217,6 +222,9 @@ TsunamiIO::read(MemReqPtr &req, uint8_t *data)
           case TSDEV_PIC1_MASK:
             *(uint8_t*)data = ~mask1;
             return No_Fault;
+          case TSDEV_PIC2_MASK:
+            *(uint8_t*)data = ~mask2;
+            return No_Fault;
           case TSDEV_PIC1_ISR:
               // !!! If this is modified 64bit case needs to be too
               // Pal code has to do a 64 bit physical read because there is
@@ -261,6 +269,7 @@ TsunamiIO::read(MemReqPtr &req, uint8_t *data)
                 return No_Fault;
               case RTC_DOM:
                 *(uint8_t *)data = tm.tm_mday;
+                return No_Fault;
               case RTC_MON:
                 *(uint8_t *)data = tm.tm_mon + 1;
                 return No_Fault;
@@ -411,7 +420,38 @@ TsunamiIO::write(MemReqPtr &req, const uint8_t *data)
           case TSDEV_KBD:
             return No_Fault;
           case TSDEV_RTC_DATA:
-            panic("RTC Write not implmented (rtc.o won't work)\n");
+            switch(RTCAddress) {
+              case RTC_CNTRL_REGA:
+                return No_Fault;
+              case RTC_CNTRL_REGB:
+                return No_Fault;
+              case RTC_CNTRL_REGC:
+                return No_Fault;
+              case RTC_CNTRL_REGD:
+                return No_Fault;
+              case RTC_SEC:
+                tm.tm_sec = *(uint8_t *)data;
+                return No_Fault;
+              case RTC_MIN:
+                tm.tm_min = *(uint8_t *)data;
+                return No_Fault;
+              case RTC_HR:
+                tm.tm_hour = *(uint8_t *)data;
+                return No_Fault;
+              case RTC_DOW:
+                tm.tm_wday = *(uint8_t *)data;
+                return No_Fault;
+              case RTC_DOM:
+                tm.tm_mday = *(uint8_t *)data;
+                return No_Fault;
+              case RTC_MON:
+                 tm.tm_mon = *(uint8_t *)data - 1;
+                return No_Fault;
+              case RTC_YEAR:
+                tm.tm_year = *(uint8_t *)data + UNIX_YEAR_OFFSET;
+                return No_Fault;
+            //panic("RTC Write not implmented (rtc.o won't work)\n");
+            }
           default:
             panic("I/O Write - va%#x size %d\n", req->vaddr, req->size);
         }

dev/tsunami_io.hh

@@ -51,7 +51,7 @@ class TsunamiIO : public PioDevice
     /** The size of mappad from the above address */
     static const Addr size = 0xff;
 
-    struct tm tm;
+    static struct tm tm;
 
     /**
      * In Tsunami RTC only has two i/o ports one for data and one for