new file mode 100644
--- /dev/null
+++ b/packages/hal/sparclite/sim/current/include/hal_clock.h
@@ -0,0 +1,123 @@
+#ifndef CYGONCE_HAL_CLOCK_H
+#define CYGONCE_HAL_CLOCK_H
+
+//=============================================================================
+//
+//      hal_clock.h
+//
+//      HAL clock support
+//
+//=============================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//=============================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):   nickg, gthomas, hmt
+// Contributors:        nickg, gthomas, hmt
+// Date:        1999-01-28
+// Purpose:     Define clock support
+// Description: The macros defined here provide the HAL APIs for handling
+//              the clock.
+//              
+// Usage:
+//              #include <cyg/hal/hal_intr.h> // which includes this file
+//              ...
+//              
+//
+//####DESCRIPTIONEND####
+//
+//=============================================================================
+
+#include <cyg/hal/hal_io.h>
+
+//-----------------------------------------------------------------------------
+// Clock control
+
+// in erc32 simulator:
+//  4 = UART A
+//  5 = UART B
+//  7 = UART error
+// 12 = GPT (general purpose timer)
+// 13 = RTC (realtime clock)
+// 15 = watchdog
+
+// in erc32 simulator:
+
+// The vector used by the Real time clock is defined in hal_xpic.h
+
+// We could place conditional code here to choose one clock or the other
+// depending on the selected interrupt vector... but pro tem: (pun intended)
+
+#define SPARC_MEC_RTC_CLOCK_SCALE (5)
+
+/* These must be accessed word-wide to work! */
+
+#define SPARC_MEC_RTC              (0x01f80080)
+
+#define SPARC_MEC_RTC_COUNTER    (SPARC_MEC_RTC +    0)
+#define SPARC_MEC_RTC_SCALER     (SPARC_MEC_RTC +    4)
+                                                       
+#define SPARC_MEC_GPT_COUNTER    (SPARC_MEC_RTC +    8)
+#define SPARC_MEC_GPT_SCALER     (SPARC_MEC_RTC + 0x0c)
+
+/* MEC timer control register bits */
+#define SPARC_MEC_TCR_GACR 1      /* Continuous Running */
+#define SPARC_MEC_TCR_GACL 2      /* Counter Load */      
+#define SPARC_MEC_TCR_GASE 4      /* System Enable */     
+#define SPARC_MEC_TCR_GASL 8      /* not used */          
+#define SPARC_MEC_TCR_TCRCR 0x100 /* Continuous Running */
+#define SPARC_MEC_TCR_TCRCL 0x200 /* Counter Load */
+#define SPARC_MEC_TCR_TCRSE 0x400 /* System Enable */
+#define SPARC_MEC_TCR_TCRSL 0x800 /* not used */
+
+#define SPARC_MEC_RTC_CONTROL    (SPARC_MEC_RTC + 0x18)
+
+externC cyg_int32 cyg_hal_sparclite_clock_period;
+
+#define HAL_CLOCK_INITIALIZE( _period_ ) CYG_MACRO_START              \
+  HAL_WRITE_UINT32( SPARC_MEC_RTC_SCALER, SPARC_MEC_RTC_CLOCK_SCALE );\
+  cyg_hal_sparclite_clock_period = (_period_);                        \
+  HAL_WRITE_UINT32( SPARC_MEC_RTC_COUNTER, (_period_) );              \
+  HAL_WRITE_UINT32( SPARC_MEC_RTC_CONTROL,                            \
+                           (SPARC_MEC_TCR_TCRCR |                     \
+                            SPARC_MEC_TCR_TCRCL |                     \
+                            SPARC_MEC_TCR_TCRSE) );                   \
+CYG_MACRO_END
+
+#define HAL_CLOCK_RESET( _vector_, _period_ ) /* nowt, it is freerunning */
+
+#define HAL_CLOCK_READ( _pvalue_ ) CYG_MACRO_START                    \
+   cyg_uint32 _read_;                                                 \
+   HAL_READ_UINT32( SPARC_MEC_RTC_COUNTER, _read_ );                  \
+   *((cyg_uint32 *)(_pvalue_)) =                                      \
+                 (cyg_hal_sparclite_clock_period - _read_ );          \
+CYG_MACRO_END
+
+
+#ifdef CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY
+#define HAL_CLOCK_LATENCY( _pvalue_ )         HAL_CLOCK_READ( _pvalue_ )
+#endif
+
+//-----------------------------------------------------------------------------
+#endif // ifndef CYGONCE_HAL_CLOCK_H
+// End of hal_clock.h