Actually adding efi bsp's from John Gwynne after forgetting to

commit them.

11 files changed, 1393 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/m68k/efi332/README b/c/src/lib/libbsp/m68k/efi332/README
new file mode 100644
index 0000000000..12d8cc13cf
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/README
@@ -0,0 +1,42 @@
+#
+#  $Id$
+#
+
+Description: efi68k
+============
+CPU: MC68332 @16MHz
+RAM: 256k max. (supports several configurations)
+ROM: 512k (supports several configurations)
+
+   This general purpose controller has been designed by a group of
+Internet subscribes to the mailing list "efi332" (an offshoot of the
+"diy_efi" mailing list). Although efi332 was initially designed for
+automotive research, it is a fairly generalized embedded controller
+when used without the companion EFI board. It is patterned much after
+the the Motorola BCC but cost on the order of $250US. A 4x3 inch
+(approx.) printed circuit board is available.  For complete
+information see
+
+	http://www.cim.swin.edu.au/wwwhome/aden/efi332/332_index.html
+
+TODO:
+=====
+- add separate interrupt stack (low priority).
+
+- add a timer driver for the tmtest set.
+
+- generate include/coverhd.c to preform the tmtest.
+
+- the interrupt drive I/O should be integrated into the RTEMS.
+
+- finish the ROM memory model.
+
+
+                                       John S Gwynne
+                                          Gwynne.1@osu.edu
+_______________________________________________________________________________
+               T h e   O h i o - S t a t e   U n i v e r s i t y
+    ElectroScience Laboratory, 1320 Kinnear Road, Columbus, Ohio 43212, USA
+                Telephone: (614) 292-7981 * Fax: (614) 292-7297
+-------------------------------------------------------------------------------
+
diff --git a/c/src/lib/libbsp/m68k/efi332/clock/ckinit.c b/c/src/lib/libbsp/m68k/efi332/clock/ckinit.c
new file mode 100644
index 0000000000..2bfa34d32d
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/clock/ckinit.c
@@ -0,0 +1,145 @@
+/*  Clock_init()
+ *
+ *  This routine initailizes the periodic interrupt timer on
+ *  the Motorola 68332.
+ *
+ *  Input parameters:  NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <stdlib.h>
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <efi332.h>
+
+#define CLOCK_VECTOR   EFI_PIV
+
+rtems_unsigned32 Clock_isrs;        /* ISRs until next tick */
+volatile rtems_unsigned32 Clock_driver_ticks;
+                                    /* ticks since initialization */
+rtems_isr_entry  Old_ticker;
+
+void Clock_exit( void );
+ 
+/*
+ * These are set by clock driver during its init
+ */
+ 
+rtems_device_major_number rtems_clock_major = ~0;
+rtems_device_minor_number rtems_clock_minor;
+ 
+rtems_isr Clock_isr(rtems_vector_number vector)
+{
+  Clock_driver_ticks += 1;
+
+  if ( Clock_isrs == 1 ) {
+    rtems_clock_tick();
+    Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
+  }
+  else
+    Clock_isrs -= 1;
+}
+
+void Install_clock(
+  rtems_isr_entry clock_isr
+)
+{
+  Clock_driver_ticks = 0;
+  Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
+
+  if ( BSP_Configuration.ticks_per_timeslice ) {
+    Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 );
+
+    /* enable 1mS interrupts */
+    *PITR = (unsigned short int)( SAM(0x09,0,PITM) );/* load counter */
+    *PICR = (unsigned short int)                     /* enable interrupt */
+      ( SAM(ISRL_PIT,8,PIRQL) | SAM(CLOCK_VECTOR,0,PIV) );
+    
+    atexit( Clock_exit );
+  }
+}
+
+void ReInstall_clock(
+  rtems_isr_entry clock_isr
+)
+{
+  rtems_unsigned32 isrlevel = 0 ;
+
+  rtems_interrupt_disable( isrlevel );
+   (void) set_vector( clock_isr, CLOCK_VECTOR, 1 );
+  rtems_interrupt_enable( isrlevel );
+}
+
+void Clock_exit( void )
+{
+
+  if ( BSP_Configuration.ticks_per_timeslice ) {
+
+    /* shutdown the periodic interrupt */
+    *PICR = (unsigned short int)
+      ( SAM(0,8,PIRQL) | SAM(CLOCK_VECTOR,0,PIV) );
+    /*     ^^ zero disables interrupt */
+
+    /* do not restore old vector */
+
+  }
+}
+
+rtems_device_driver Clock_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  Install_clock( Clock_isr );
+ 
+  /*
+   * make major/minor avail to others such as shared memory driver
+   */
+ 
+  rtems_clock_major = major;
+  rtems_clock_minor = minor;
+ 
+  return RTEMS_SUCCESSFUL;
+}
+ 
+rtems_device_driver Clock_control(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+    rtems_libio_ioctl_args_t *args = pargp;
+ 
+    if (args == 0)
+        goto done;
+ 
+    /*
+     * This is hokey, but until we get a defined interface
+     * to do this, it will just be this simple...
+     */
+ 
+    if (args->command == rtems_build_name('I', 'S', 'R', ' '))
+    {
+        Clock_isr(CLOCK_VECTOR);
+    }
+    else if (args->command == rtems_build_name('N', 'E', 'W', ' '))
+    {
+        ReInstall_clock(args->buffer);
+    }
+ 
+done:
+    return RTEMS_SUCCESSFUL;
+}
+ 
diff --git a/c/src/lib/libbsp/m68k/efi332/console/console.c b/c/src/lib/libbsp/m68k/efi332/console/console.c
new file mode 100644
index 0000000000..b16ec72334
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/console/console.c
@@ -0,0 +1,390 @@
+/*
+ *  This file contains the efi332 console IO package.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <stdlib.h>
+#include <bsp.h>
+#include <rtems/libio.h>
+
+/* BUFFER_LENGTH must be 2^n for n=1, 2, 3, .... */
+#define BUFFER_LENGTH 256
+#define RTS_STOP_SIZE BUFFER_LENGTH-64
+#define RTS_START_SIZE 16
+
+char xmt_buf[BUFFER_LENGTH];
+char rcv_buf[BUFFER_LENGTH];
+/* in: last entry into the buffer; always on a valid character */
+/* out: points to the next character to be pull from the buffer */
+/*    in+1=out => buffer empty */
+/*    in+2=out => buffer full */
+struct UART_buf {
+  char *offset; 
+  char *in; 
+  char *out;
+};
+static volatile struct UART_buf  xmt = { xmt_buf, (char *)0, (char *)1};
+static volatile struct UART_buf  rcv = { rcv_buf, (char *)0, (char *)1};
+static volatile char _debug_flag = 0;
+
+#define SET_RTS(a) {*PORTF0 = (*PORTF0 & 0x4) | ( (a)? 0 : 0x4); }
+#define GET_CTS (!(*PORTF0 & 0x2))
+
+/* _catchSCIint, _catchCTSint, and _catchSPURIOUSint are the 
+   interrupt front-ends */
+extern void _catchSCIint();
+asm("   .text
+        .align 2
+        .globl _catchSCIint
+_catchSCIint:
+        moveml %d0-%d7/%a0-%a6,%sp@-       /* save registers */
+        jbsr    uart_interrupt
+        moveml  %sp@+,%d0-%d7/%a0-%a6			        
+        rte
+    ");
+
+extern void _catchCTSint();
+asm("   .text
+        .align 2
+        .globl _catchCTSint
+_catchCTSint:
+        moveml %d0-%d7/%a0-%a6,%sp@-       /* save registers */
+        jbsr    cts_interrupt
+        moveml  %sp@+,%d0-%d7/%a0-%a6			        
+        rte
+    ");
+
+extern void _catchSPURIOUSint();
+asm("   .text
+        .align 2
+        .globl _catchSPURIOUSint
+_catchSPURIOUSint:
+        moveml %d0-%d7/%a0-%a6,%sp@-       /* save registers */
+        jbsr    spurious_interrupt
+        moveml  %sp@+,%d0-%d7/%a0-%a6			        
+        rte
+    ");
+
+int _spurious_int_counter=0;
+
+/* note: cts uses int1. If it "bounces", a spurious interrupt is generated */
+void spurious_interrupt(void) {
+  _spurious_int_counter++;	/* there should never be alot of these */
+}
+
+/* _fake_trap_1 will continue the UART interrupt (%sr *still*
+   UART_ISR_LEVEL) as a trap #1 to enter the debugger */
+
+/* *****fix me; this is for 68000 w/jsr ram exception table ******* */
+asm("   .text
+        .align 2
+_fake_trap_1:
+        unlk %a6		/* clear interrupt frame */
+        lea %sp@(4),%sp		/* remove jbsr instruction */
+        moveml %sp@+,%d0-%d7/%a0-%a6 /* pop registers */
+        jmp (33*6-12)	/* jump exception 1 */
+        ");
+
+/* dispatch UART interrupt */
+void xmit_interrupt(void);
+void rcvr_interrupt(void);
+void _fake_trap_1(void);
+
+void uart_interrupt(void) {
+  /* receiver status bits are cleared by a SCSR read followed 
+     by a SCDR read. transmitter status bits are cleared by
+     a SCSR read followed by a SCDR write. */
+  if ((*SCSR) & (TDRE | TC))
+    xmit_interrupt();
+
+  if ((*SCSR) & (RDRF))
+    rcvr_interrupt();
+
+  if (_debug_flag) {
+    _debug_flag = 0;		/* reset the flag */
+    _fake_trap_1();		/* fake a trap #1 */
+  }
+}
+
+/* transfer received character to the buffer */
+void rcvr_interrupt(void) {
+  register char *a, c;
+  register int length;
+
+  while((*SCSR) & (RDRF)) {
+    if ((c=*SCDR) == 0x1a) 	/* use ctl-z to reboot */
+      reboot();
+/*     else if (c == 0x03) { */	/* use ctl-c to enter debugger */
+/*       _debug_flag = 1; */
+/*       continue; */
+/*     } */
+
+    *(char *)((int)rcv.offset +(int)
+	      (a=(char *)(((int)rcv.in+1) & ((int)BUFFER_LENGTH-1)))) = c;
+    if ((char *)(((int)rcv.in+2) & ((int)BUFFER_LENGTH-1)) != rcv.out)
+      rcv.in=a;
+  };
+
+  length = (BUFFER_LENGTH -1) & ( 
+    ( ((int)rcv.out <= (int)rcv.in) ? 0 : BUFFER_LENGTH) - (int)rcv.out 
+    + (int)rcv.in + 1);
+  if (length >= RTS_STOP_SIZE)
+    SET_RTS(0);
+}
+
+/* tranfer buffered characters to the UART */
+void xmit_interrupt(void) {
+  register short int oldsr;
+
+  _CPU_ISR_Disable( oldsr ); /* for when outbyte or flush calls */
+  while ((*SCSR) & (TDRE)) {
+    if ((char *)(((int)xmt.in+1) & ((int)BUFFER_LENGTH-1)) != xmt.out)
+      /* xmit buffer not empty */
+      if (GET_CTS) {
+	/* send next char */
+	*SCDR=*(char *)((int)xmt.offset+(int)xmt.out);
+	xmt.out= (char *)(((int)xmt.out+1) & ((int)BUFFER_LENGTH-1));
+	*SCCR1 = (*SCCR1 & ~(TIE | TCIE)) | (TIE);
+      } 
+      else {
+	/* configue CTS interrupt and shutdown xmit interrupts */
+	*SCCR1 &= ~(TIE | TCIE);
+	*PFPAR |= 0x2;
+	break;
+      }
+    else {
+      /* xmit buffer empty; shutdown interrupts */
+      *SCCR1 &= ~(TIE | TCIE);
+      break;
+    }
+  }
+  _CPU_ISR_Enable( oldsr );
+}
+
+void cts_interrupt(void) {
+  register short int oldsr;
+
+  _CPU_ISR_Disable( oldsr ); /* for when outbyte calls */
+
+  *PFPAR &= ~0x2;
+  *SCCR1 = (*SCCR1 & ~(TIE | TCIE)) | (TIE);
+
+  _CPU_ISR_Enable( oldsr );
+}
+  
+
+
+/* transfer character from the buffer */
+char inbyte(void) {
+  register char a;
+  register int length;
+
+  while ((char *)(((int)rcv.in+1) & ((int)BUFFER_LENGTH-1))== rcv.out);
+  a=*(char *)((int)rcv.offset+(int)rcv.out);
+  rcv.out= (char *)(((int)rcv.out+1) & ((int)BUFFER_LENGTH-1));
+  length = (BUFFER_LENGTH -1) & ( 
+    ( ((int)rcv.out <= (int)rcv.in) ? 0 : BUFFER_LENGTH) - (int)rcv.out 
+    + (int)rcv.in + 1);
+  if (length < RTS_START_SIZE)
+    SET_RTS(1);
+  return (a);
+}
+
+/* once room is avaliable in the buffer, transfer
+   the character into the buffer and enable 
+   the xmtr interrupt */
+void outbyte(char c) {
+  register char *a;
+  
+  while ((char *)(((int)xmt.in+2) & ((int)BUFFER_LENGTH-1)) == xmt.out);
+  *(char *)((int)xmt.offset+(int)
+	    (a=(char *)(((int)xmt.in+1) & ((int)BUFFER_LENGTH-1))))=c;
+  xmt.in=a;
+
+  if (!(*SCCR1 & (TIE | TCIE)) && (!(*PFPAR & 0x2)) )
+                                /* if neither interrupts are running, */
+    xmit_interrupt();		/*    we need to restart the xmiter */
+}
+
+void _UART_flush(void) {
+  /* loop till xmt buffer empty. Works with interrupts disabled */
+  while ((char *)(((int)xmt.in+1) & ((int)BUFFER_LENGTH-1)) != xmt.out)
+    xmit_interrupt();
+  /* loop till UART buffer empty */
+  while ( (*SCSR & TC) == 0 );
+}
+
+/*  console_initialize
+ *
+ *  This routine initializes the console IO driver.
+ *
+ *  Input parameters: NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  Return values:
+ */
+ 
+rtems_device_driver console_initialize(
+  rtems_device_major_number  major,
+  rtems_device_minor_number  minor,
+  void                      *arg
+)
+{
+  rtems_status_code status;
+ 
+  *QSMCR = ( SAM(QSM_IARB,0,IARB) );
+  *QILR = ( SAM(ISRL_QSPI,4,ILQSPI) | SAM(ISRL_SCI,0,ILSCI) );
+  *QIVR = ( SAM(EFI_QIVR,0,INTV) );
+
+  *SCCR0 = ( (int)( SYS_CLOCK/SCI_BAUD/32.0+0.5 ) & 0x1fff );
+  *SCCR1 = ( RIE | TE | RE );
+
+  set_vector(_catchSPURIOUSint, EFI_SPINT, 0);
+  set_vector(_catchSCIint, EFI_QIVR, 0);
+  set_vector(_catchCTSint, EFI_INT1, 0);
+  status = rtems_io_register_name(
+    "/dev/console",
+    major,
+    (rtems_device_minor_number) 0
+  );
+ 
+  if (status != RTEMS_SUCCESSFUL)
+    rtems_fatal_error_occurred(status);
+ 
+  return RTEMS_SUCCESSFUL;
+}
+
+/*  is_character_ready
+ *
+ *  This routine returns TRUE if a character is available.
+ *
+ *  Input parameters: NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  Return values:
+ */
+
+rtems_boolean is_character_ready(
+  char *ch
+)
+{
+  if ((char *)(((int)rcv.in+1) & ((int)BUFFER_LENGTH-1))== rcv.out)
+    return(FALSE);
+  else
+    return(TRUE);
+}
+
+/*
+ *  Open entry point
+ */
+ 
+rtems_device_driver console_open(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  return RTEMS_SUCCESSFUL;
+}
+ 
+/*
+ *  Close entry point
+ */
+ 
+rtems_device_driver console_close(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  return RTEMS_SUCCESSFUL;
+}
+ 
+/*
+ * read bytes from the serial port. We only have stdin.
+ */
+ 
+rtems_device_driver console_read(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  rtems_libio_rw_args_t *rw_args;
+  char *buffer;
+  int maximum;
+  int count = 0;
+ 
+  rw_args = (rtems_libio_rw_args_t *) arg;
+ 
+  buffer = rw_args->buffer;
+  maximum = rw_args->count;
+ 
+  for (count = 0; count < maximum; count++) {
+    buffer[ count ] = inbyte();
+    if (buffer[ count ] == '\n' || buffer[ count ] == '\r') {
+      buffer[ count++ ]  = '\n';
+      buffer[ count ]  = 0;
+      break;
+    }
+  }
+ 
+  rw_args->bytes_moved = count;
+  return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED;
+}
+ 
+/*
+ * write bytes to the serial port. Stdout and stderr are the same.
+ */
+ 
+rtems_device_driver console_write(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  int count;
+  int maximum;
+  rtems_libio_rw_args_t *rw_args;
+  char *buffer;
+ 
+  rw_args = (rtems_libio_rw_args_t *) arg;
+ 
+  buffer = rw_args->buffer;
+  maximum = rw_args->count;
+ 
+  for (count = 0; count < maximum; count++) {
+    if ( buffer[ count ] == '\n') {
+      outbyte('\r');
+    }
+    outbyte( buffer[ count ] );
+  }
+ 
+  rw_args->bytes_moved = maximum;
+  return 0;
+}
+ 
+/*
+ *  IO Control entry point
+ */
+ 
+rtems_device_driver console_control(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  return RTEMS_SUCCESSFUL;
+}
+
diff --git a/c/src/lib/libbsp/m68k/efi332/include/bsp.h b/c/src/lib/libbsp/m68k/efi332/include/bsp.h
new file mode 100644
index 0000000000..dd876eeeec
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/include/bsp.h
@@ -0,0 +1,147 @@
+/*  bsp.h
+ *
+ *  This include file contains all efi332 board IO definitions.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#ifndef __EFI332_BSP_h
+#define __EFI332_BSP_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems.h>
+#include <clockdrv.h>
+#include <console.h>
+#include <iosupp.h>
+#include <efi332.h>
+#include <sim.h>
+#include <qsm.h>
+
+/*
+ *  Define the time limits for RTEMS Test Suite test durations.
+ *  Long test and short test duration limits are provided.  These
+ *  values are in seconds and need to be converted to ticks for the
+ *  application.
+ *
+ */
+
+#define MAX_LONG_TEST_DURATION       300 /* 5 minutes = 300 seconds */
+#define MAX_SHORT_TEST_DURATION      3   /* 3 seconds */
+
+/*
+ *  Define the interrupt mechanism for Time Test 27
+ */
+
+/* XXX - JRS - I want to compile the tmtests */
+
+#define MUST_WAIT_FOR_INTERRUPT 1 
+
+#define Install_tm27_vector( handler )
+
+#define Cause_tm27_intr()
+
+#define Clear_tm27_intr()
+
+#define Lower_tm27_intr() 
+
+/*
+ *  Simple spin delay in microsecond units for device drivers.
+ *  This is very dependent on the clock speed of the target.
+ */
+
+#define delay( microseconds ) \
+  { register rtems_unsigned32 _delay=(microseconds); \
+    register rtems_unsigned32 _tmp=123; \
+    asm volatile( "0: \
+                     nbcd      %0 ; \
+                     nbcd      %0 ; \
+                     dbf       %1,0b" \
+                  : "=d" (_tmp), "=d" (_delay) \
+                  : "0"  (_tmp), "1"  (_delay) ); \
+  }
+
+/* macros */
+
+#define RAM_START 0x80000
+#define RAM_END   0xc0000
+
+#define RAW_PUTS(str) \
+  { register char *ptr = str; \
+    while (*ptr) outbyte(*ptr++); \
+  }
+
+#define RAW_PUTI(n) { \
+    register int i, j; \
+    \
+    RAW_PUTS("0x"); \
+    for (i=28;i>=0;i -= 4) { \
+      j = (n>>i) & 0xf; \
+      outbyte( (j>9 ? j-10+'a' : j+'0') ); \
+    } \
+  }
+
+/* miscellaneous stuff assumed to exist */
+
+extern rtems_configuration_table BSP_Configuration;
+
+extern m68k_isr_entry M68Kvec[];   /* vector table address */
+
+extern int stack_size;
+
+extern int stack_start;
+
+/*
+ *  Device Driver Table Entries
+ */
+ 
+/*
+ * NOTE: Use the standard Console driver entry
+ */
+ 
+/*
+ * NOTE: Use the standard Clock driver entry
+ */
+
+/*
+ * How many libio files we want
+ */
+ 
+#define BSP_LIBIO_MAX_FDS       20
+
+/* functions */
+
+void bsp_cleanup( void );
+
+m68k_isr_entry set_vector(
+  rtems_isr_entry     handler,
+  rtems_vector_number vector,
+  int                 type
+);
+
+void console_init(void);
+
+void Spurious_Initialize(void);
+
+void _UART_flush(void);
+
+void Clock_exit(void);
+
+void outbyte(char);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */
diff --git a/c/src/lib/libbsp/m68k/efi332/include/coverhd.h b/c/src/lib/libbsp/m68k/efi332/include/coverhd.h
new file mode 100644
index 0000000000..671f20d197
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/include/coverhd.h
@@ -0,0 +1,106 @@
+/*  coverhd.h
+ *
+ *  This include file has defines to represent the overhead associated
+ *  with calling a particular directive from C.  These are used in the
+ *  Timing Test Suite to ignore the overhead required to pass arguments 
+ *  to directives.  On some CPUs and/or target boards, this overhead 
+ *  is significant and makes it difficult to distinguish internal 
+ *  RTEMS execution time from that used to call the directive.
+ *  This file should be updated after running the C overhead timing
+ *  test.  Once this update has been performed, the RTEMS Time Test
+ *  Suite should be rebuilt to account for these overhead times in the
+ *  timing results.
+ *
+ *  NOTE:  If these are all zero, then the times reported include all
+ *         all calling overhead including passing of arguments.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#ifndef __COVERHD_h
+#define __COVERHD_h
+
+#define CALLING_OVERHEAD_INITIALIZE_EXECUTIVE      0
+#define CALLING_OVERHEAD_SHUTDOWN_EXECUTIVE        0
+#define CALLING_OVERHEAD_TASK_CREATE               0
+#define CALLING_OVERHEAD_TASK_IDENT                0
+#define CALLING_OVERHEAD_TASK_START                0
+#define CALLING_OVERHEAD_TASK_RESTART              0
+#define CALLING_OVERHEAD_TASK_DELETE               0
+#define CALLING_OVERHEAD_TASK_SUSPEND              0
+#define CALLING_OVERHEAD_TASK_RESUME               0
+#define CALLING_OVERHEAD_TASK_SET_PRIORITY         0
+#define CALLING_OVERHEAD_TASK_MODE                 0
+#define CALLING_OVERHEAD_TASK_GET_NOTE             0
+#define CALLING_OVERHEAD_TASK_SET_NOTE             0
+#define CALLING_OVERHEAD_TASK_WAKE_WHEN            0
+#define CALLING_OVERHEAD_TASK_WAKE_AFTER           0
+#define CALLING_OVERHEAD_INTERRUPT_CATCH           0
+#define CALLING_OVERHEAD_CLOCK_GET                 0
+#define CALLING_OVERHEAD_CLOCK_SET                 0
+#define CALLING_OVERHEAD_CLOCK_TICK                0
+
+#define CALLING_OVERHEAD_TIMER_CREATE              0
+#define CALLING_OVERHEAD_TIMER_IDENT               0
+#define CALLING_OVERHEAD_TIMER_DELETE              0
+#define CALLING_OVERHEAD_TIMER_FIRE_AFTER          0
+#define CALLING_OVERHEAD_TIMER_FIRE_WHEN           0
+#define CALLING_OVERHEAD_TIMER_RESET               0
+#define CALLING_OVERHEAD_TIMER_CANCEL              0
+#define CALLING_OVERHEAD_SEMAPHORE_CREATE          0
+#define CALLING_OVERHEAD_SEMAPHORE_IDENT           0
+#define CALLING_OVERHEAD_SEMAPHORE_DELETE          0
+#define CALLING_OVERHEAD_SEMAPHORE_OBTAIN          0
+#define CALLING_OVERHEAD_SEMAPHORE_RELEASE         0
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_CREATE      0
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_IDENT       0
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_DELETE      0
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_SEND        0
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_URGENT      0
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_BROADCAST   0
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_RECEIVE     0
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_FLUSH       0
+
+#define CALLING_OVERHEAD_EVENT_SEND                0
+#define CALLING_OVERHEAD_EVENT_RECEIVE             0
+#define CALLING_OVERHEAD_SIGNAL_CATCH              0
+#define CALLING_OVERHEAD_SIGNAL_SEND               0
+#define CALLING_OVERHEAD_PARTITION_CREATE          0
+#define CALLING_OVERHEAD_PARTITION_IDENT           0
+#define CALLING_OVERHEAD_PARTITION_DELETE          0
+#define CALLING_OVERHEAD_PARTITION_GET_BUFFER      0
+#define CALLING_OVERHEAD_PARTITION_RETURN_BUFFER   0
+#define CALLING_OVERHEAD_REGION_CREATE             0
+#define CALLING_OVERHEAD_REGION_IDENT              0
+#define CALLING_OVERHEAD_REGION_DELETE             0
+#define CALLING_OVERHEAD_REGION_GET_SEGMENT        0
+#define CALLING_OVERHEAD_REGION_RETURN_SEGMENT     0
+#define CALLING_OVERHEAD_PORT_CREATE               0
+#define CALLING_OVERHEAD_PORT_IDENT                0
+#define CALLING_OVERHEAD_PORT_DELETE               0
+#define CALLING_OVERHEAD_PORT_EXTERNAL_TO_INTERNAL 0
+#define CALLING_OVERHEAD_PORT_INTERNAL_TO_EXTERNAL 0
+
+#define CALLING_OVERHEAD_IO_INITIALIZE             0
+#define CALLING_OVERHEAD_IO_OPEN                   0
+#define CALLING_OVERHEAD_IO_CLOSE                  0
+#define CALLING_OVERHEAD_IO_READ                   0
+#define CALLING_OVERHEAD_IO_WRITE                  0
+#define CALLING_OVERHEAD_IO_CONTROL                0
+#define CALLING_OVERHEAD_FATAL_ERROR_OCCURRED      0
+#define CALLING_OVERHEAD_RATE_MONOTONIC_CREATE     0
+#define CALLING_OVERHEAD_RATE_MONOTONIC_IDENT      0
+#define CALLING_OVERHEAD_RATE_MONOTONIC_DELETE     0
+#define CALLING_OVERHEAD_RATE_MONOTONIC_CANCEL     0
+#define CALLING_OVERHEAD_RATE_MONOTONIC_PERIOD     0
+#define CALLING_OVERHEAD_MULTIPROCESSING_ANNOUNCE  0
+
+#endif
diff --git a/c/src/lib/libbsp/m68k/efi332/include/efi332.h b/c/src/lib/libbsp/m68k/efi332/include/efi332.h
new file mode 100644
index 0000000000..80d23f291a
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/include/efi332.h
@@ -0,0 +1,46 @@
+/*  efi332.h
+ *
+ *  $Id$
+ */
+
+#ifndef _EFI332_H_
+#define _EFI332_H_
+
+
+/* SIM_MM (SIM Module Mapping) determines the location of the control
+   register block. When MM=0, register addresses range fom 0x7ff000 to
+   0x7FFFFF. When MM=1, register addresses range from 0xfff000 to
+   0xffffff. */
+#define SIM_MM 1
+
+
+/* Interrupt related definitions */
+#define SIM_IARB 15
+#define QSM_IARB 10
+
+#define EFI_PIV 64
+#define ISRL_PIT 4		/* zero disables PIT */
+
+#define EFI_QIVR 66		/* 66=>SCI and 67=>QSPI interrupt */
+#define ISRL_QSPI 0
+
+#define EFI_SPINT 24		/* spurious interrupt */
+#define EFI_INT1 25		/* CTS interrupt */
+#define ISRL_SCI 6
+
+
+
+/* System Clock definitions */
+#define XTAL 32768.0		/* crystal frequency in Hz */
+#define EFI_W 0			/* system clock parameters */
+#define EFI_X 1
+#define EFI_Y 0x38
+#define SYS_CLOCK (XTAL*4.0*(EFI_Y+1)*(1 << (2*EFI_W+EFI_X)))
+#define SCI_BAUD 19200		/* RS232 Baud Rate */
+
+
+/* macros/functions */
+static void reboot(void) __attribute__ ((noreturn));
+__inline__ static void reboot() {asm("trap #15");}
+
+#endif /* _EFI332_H_ */
diff --git a/c/src/lib/libbsp/m68k/efi332/spurious/spinit.c b/c/src/lib/libbsp/m68k/efi332/spurious/spinit.c
new file mode 100644
index 0000000000..3370cb0e30
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/spurious/spinit.c
@@ -0,0 +1,85 @@
+/*  Spurious_driver
+ *
+ *  This routine installs spurious interrupt handlers for the efi332.
+ *
+ *  Input parameters:  NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <stdio.h>
+
+const char * const _Spurious_Error_[] = {"Reset","Bus Error","Address Error",
+   "Illegal Instruction","Zero Division","CHK, CHK2 Instruction",
+   "TRAPcc, TRAPV Instruction","Privilege Violation","Trace",
+   "Line 1010 Emulation","Line 1111 Emulation","Hardware Breakpoint",
+   "Coprocessor Protocal Violation",
+   "Format Error ans Uninitialized Interrupt","Unassigned",
+   "Spurious Interrupt","AVec1","AVec2","AVec3","AVec4","AVec5","AVec6",
+   "AVec7","Trap Instruction","Debug","Reboot","Reserved Coprocessor",
+   "Reserved Unassigned","User Defined"};
+
+rtems_isr Spurious_Isr(
+  rtems_vector_number vector
+)
+{
+  int sp = 0;
+  const char * const VectDescrip[] = {
+    _Spurious_Error_[0],   _Spurious_Error_[0],  _Spurious_Error_[1], 
+    _Spurious_Error_[2],   _Spurious_Error_[3],  _Spurious_Error_[4], 
+    _Spurious_Error_[5],   _Spurious_Error_[6],  _Spurious_Error_[7], 
+    _Spurious_Error_[8],   _Spurious_Error_[9], _Spurious_Error_[10], 
+    _Spurious_Error_[11], _Spurious_Error_[12], _Spurious_Error_[13], 
+    _Spurious_Error_[13], _Spurious_Error_[14], _Spurious_Error_[14], 
+    _Spurious_Error_[14], _Spurious_Error_[14], _Spurious_Error_[14], 
+    _Spurious_Error_[14], _Spurious_Error_[14], _Spurious_Error_[14], 
+    _Spurious_Error_[15], _Spurious_Error_[16], _Spurious_Error_[17], 
+    _Spurious_Error_[18], _Spurious_Error_[19], _Spurious_Error_[20], 
+    _Spurious_Error_[21], _Spurious_Error_[22], _Spurious_Error_[23], 
+    _Spurious_Error_[24], _Spurious_Error_[23], _Spurious_Error_[23], 
+    _Spurious_Error_[23], _Spurious_Error_[23], _Spurious_Error_[23], 
+    _Spurious_Error_[23], _Spurious_Error_[23], _Spurious_Error_[23], 
+    _Spurious_Error_[23], _Spurious_Error_[23], _Spurious_Error_[23], 
+    _Spurious_Error_[23], _Spurious_Error_[23], _Spurious_Error_[25], 
+    _Spurious_Error_[26], _Spurious_Error_[26], _Spurious_Error_[26], 
+    _Spurious_Error_[26], _Spurious_Error_[26], _Spurious_Error_[26], 
+    _Spurious_Error_[26], _Spurious_Error_[26], _Spurious_Error_[26], 
+    _Spurious_Error_[26], _Spurious_Error_[26], _Spurious_Error_[27], 
+    _Spurious_Error_[27], _Spurious_Error_[27], _Spurious_Error_[27], 
+    _Spurious_Error_[27], _Spurious_Error_[28]};
+
+  asm volatile ( "movea.l   %%sp,%0 " : "=a" (sp) : "0" (sp) );
+
+  _CPU_ISR_Set_level( 7 );
+  _UART_flush();
+
+  RAW_PUTS("\n\rRTEMS: Spurious interrupt: ");
+  RAW_PUTS((char *)VectDescrip[( (vector>64) ? 64 : vector )]);
+  RAW_PUTS("\n\rRTEMS:    Vector: ");
+  RAW_PUTI(vector);
+  RAW_PUTS(" sp: ");
+  RAW_PUTI(sp);
+  RAW_PUTS("\n\r");
+
+  bsp_cleanup();
+
+  for(;;);
+}
+
+void Spurious_Initialize(void)
+{
+  rtems_vector_number vector;
+
+  for ( vector = 0x0 ; vector <= 0xFF ; vector++ )
+    (void) set_vector( Spurious_Isr, vector, 1 );
+}
diff --git a/c/src/lib/libbsp/m68k/efi332/startup/bspclean.c b/c/src/lib/libbsp/m68k/efi332/startup/bspclean.c
new file mode 100644
index 0000000000..34a57b6b68
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/startup/bspclean.c
@@ -0,0 +1,28 @@
+/*  bsp_cleanup()
+ *
+ *  This routine cleans up in the sense that it places the board
+ *  in a safe state and flushes the I/O buffers before exiting. 
+ *
+ *  INPUT:  NONE
+ *
+ *  OUTPUT: NONE
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+
+void bsp_cleanup(void)
+{
+    /* interrupt driven stdio must be flushed */
+    _CPU_ISR_Set_level( 7 );
+    _UART_flush();
+}
diff --git a/c/src/lib/libbsp/m68k/efi332/startup/bspstart.c b/c/src/lib/libbsp/m68k/efi332/startup/bspstart.c
new file mode 100644
index 0000000000..6a7830bcfe
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/startup/bspstart.c
@@ -0,0 +1,220 @@
+#define STACK_CHECKER_ON
+/*  bsp_start()
+ *
+ *  This routine starts the application.  It includes application,
+ *  board, and monitor specific initialization and configuration.
+ *  The generic CPU dependent initialization has been performed
+ *  before this routine is invoked.
+ *
+ *  INPUT:  NONE
+ *
+ *  OUTPUT: NONE
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <libcsupport.h>
+ 
+#include <string.h>
+#include <fcntl.h>
+ 
+#ifdef STACK_CHECKER_ON
+#include <stackchk.h>
+#endif
+
+/*
+ *  The original table from the application and our copy of it with
+ *  some changes.
+ */
+
+extern rtems_configuration_table  Configuration;
+rtems_configuration_table         BSP_Configuration;
+
+rtems_cpu_table Cpu_table;
+
+char *rtems_progname;
+
+/*      Initialize whatever libc we are using
+ *      called from postdriver hook
+ */
+
+void bsp_libc_init()
+{
+  extern int end;
+  rtems_unsigned32        heap_start;
+  
+  heap_start = (rtems_unsigned32) &end;
+  if (heap_start & (CPU_ALIGNMENT-1))
+    heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
+  
+  RTEMS_Malloc_Initialize((void *) heap_start, 64 * 1024, 0);
+    
+  /*
+   *  Init the RTEMS libio facility to provide UNIX-like system
+   *  calls for use by newlib (ie: provide __open, __close, etc)
+   *  Uses malloc() to get area for the iops, so must be after malloc init
+   */
+
+  rtems_libio_init();
+
+  /*
+   * Set up for the libc handling.
+   */
+  
+  if (BSP_Configuration.ticks_per_timeslice > 0)
+    libc_init(1);                /* reentrant if possible */
+  else
+    libc_init(0);                /* non-reentrant */
+}
+
+/*
+ *  Function:   bsp_pretasking_hook
+ *  Created:    95/03/10
+ *
+ *  Description:
+ *      BSP pretasking hook.  Called just before drivers are initialized.
+ *      Used to setup libc and install any BSP extensions.
+ *
+ *  NOTES:
+ *      Must not use libc (to do io) from here, since drivers are
+ *      not yet initialized.
+ *
+ */
+ 
+void
+bsp_pretasking_hook(void)
+{
+    bsp_libc_init();
+ 
+#ifdef STACK_CHECKER_ON
+    /*
+     *  Initialize the stack bounds checker
+     *  We can either turn it on here or from the app.
+     */
+ 
+    Stack_check_Initialize();
+#endif
+ 
+#ifdef RTEMS_DEBUG
+    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+}
+ 
+ 
+/*
+ * After drivers are setup, register some "filenames"
+ * and open stdin, stdout, stderr files
+ *
+ * Newlib will automatically associate the files with these
+ * (it hardcodes the numbers)
+ */
+ 
+void
+bsp_postdriver_hook(void)
+{
+  int stdin_fd, stdout_fd, stderr_fd;
+ 
+  if ((stdin_fd = __open("/dev/console", O_RDONLY, 0)) == -1)
+    rtems_fatal_error_occurred('STD0');
+ 
+  if ((stdout_fd = __open("/dev/console", O_WRONLY, 0)) == -1)
+    rtems_fatal_error_occurred('STD1');
+ 
+  if ((stderr_fd = __open("/dev/console", O_WRONLY, 0)) == -1)
+    rtems_fatal_error_occurred('STD2');
+ 
+  if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2))
+    rtems_fatal_error_occurred('STIO');
+}
+ 
+int main(
+  int argc,
+  char **argv,
+  char **environp
+)
+{
+  void           *vbr;
+
+  /*
+   *  we only use a hook to get the C library initialized.
+   */
+
+  Cpu_table.pretasking_hook = bsp_pretasking_hook;
+
+  Cpu_table.predriver_hook = NULL;
+
+  Cpu_table.postdriver_hook = bsp_postdriver_hook;
+
+  Cpu_table.idle_task = NULL;  /* do not override system IDLE task */
+
+  Cpu_table.do_zero_of_workspace = TRUE;
+
+  m68k_get_vbr( vbr );
+  Cpu_table.interrupt_vector_table = vbr;
+
+  Cpu_table.interrupt_stack_size = 4096;
+
+  Cpu_table.extra_system_initialization_stack = 0;
+
+  /*
+   *  Copy the table
+   */
+
+  BSP_Configuration = Configuration;
+
+  BSP_Configuration.work_space_start = (void *)
+     (RAM_END - BSP_Configuration.work_space_size);
+
+  if ((unsigned int)BSP_Configuration.work_space_start < 
+      (unsigned int)((stack_start + stack_size) & 0xffffffc0) ) {
+    /* rtems_fatal_error_occurred can not be used before initalization */
+    RAW_PUTS("\n\rRTEMS: Out of memory.\n\r");
+    RAW_PUTS("RTEMS:    Check RAM_END and the size of the work space.\n\r");
+    goto exit;
+  }
+
+  /*
+   * Add 1 region for Malloc in libc_low
+   */
+
+  BSP_Configuration.maximum_regions++;
+
+  /*
+   * Add 1 extension for newlib libc
+   */
+
+#ifdef RTEMS_NEWLIB
+    BSP_Configuration.maximum_extensions++;
+#endif
+
+  /*
+   * Add another extension if using the stack checker
+   */
+
+#ifdef STACK_CHECKER_ON
+    BSP_Configuration.maximum_extensions++;
+#endif
+
+  rtems_initialize_executive( &BSP_Configuration, &Cpu_table );
+  /* does not return */
+
+  /* Clock_exit is done as an atexit() function */
+
+exit:
+  /* configure peripherals for safe exit */
+  bsp_cleanup();
+
+  /* return like a "normal" subroutine to the monitor */
+  return 0;
+}
+
diff --git a/c/src/lib/libbsp/m68k/efi332/startup/linkcmds b/c/src/lib/libbsp/m68k/efi332/startup/linkcmds
new file mode 100644
index 0000000000..37d1eb5667
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/startup/linkcmds
@@ -0,0 +1,100 @@
+/*  linkcmds
+ *
+ *  $Id$
+ */
+
+OUTPUT_ARCH(m68k)
+__DYNAMIC  =  0;
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        etext       |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _endtext    |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+MEMORY
+{
+  ram     : ORIGIN = 0x80000, LENGTH = 256K
+}
+
+_copy_data_from_rom = 0;
+
+/*
+ * stick everything in ram (of course)
+ */
+SECTIONS
+{
+  .text :
+  {
+    CREATE_OBJECT_SYMBOLS
+    text_start = .;
+    _text_start = .;
+    *(.text)
+    etext = ALIGN(0x10);
+    _etext = .;
+    __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    *(.ctors)
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    *(.dtors)
+    LONG(0)
+    __DTOR_END__ = .;
+    *(.lit)
+    *(.shdata)
+    _endtext = .;
+  } > ram
+  .data :
+  {
+    data_start = .;
+    _data_start = .;
+    _sdata = . ;
+    *(.data)
+    CONSTRUCTORS
+    edata = ALIGN(0x10);
+    _edata = .;
+  } > ram
+  .shbss :
+  {
+    *(.shbss)
+  } > ram
+  .bss :
+  {
+    __bss_start = ALIGN(0x8);
+    bss_start = .;
+    _bss_start = .;
+    *(.bss)
+    *(COMMON)
+    end = .;
+    _end = ALIGN(0x8);
+    __end = ALIGN(0x8);
+  } > ram
+  .stab . (NOLOAD) :
+  {
+    [ .stab ]
+  }
+  .stabstr . (NOLOAD) :
+  {
+    [ .stabstr ]
+  }
+}
diff --git a/c/src/lib/libbsp/m68k/efi332/timer/timer.c b/c/src/lib/libbsp/m68k/efi332/timer/timer.c
new file mode 100644
index 0000000000..7a9b1b6267
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/efi332/timer/timer.c
@@ -0,0 +1,84 @@
+/*  Timer_init()
+ *
+ *  This routine initializes a timer in efi68k's DP8570A TCP
+ *
+ *  Input parameters:  NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  NOTE: It is important that the timer start/stop overhead be 
+ *        determined when porting or modifying this code.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+
+#include <bsp.h>
+
+rtems_boolean Timer_driver_Find_average_overhead;
+
+extern rtems_isr Clock_isr();
+
+void Timer_initialize( void )
+{
+}
+
+/*
+ *  The following controls the behavior of Read_timer().
+ *
+ *  FIND_AVG_OVERHEAD *  instructs the routine to return the "raw" count.
+ *
+ *  AVG_OVEREHAD is the overhead for starting and stopping the timer.  It
+ *  is usually deducted from the number returned.
+ *
+ *  LEAST_VALID is the lowest number this routine should trust.  Numbers
+ *  below this are "noise" and zero is returned.
+ */
+
+#define AVG_OVERHEAD      0  /* It typically takes X.X microseconds */
+                             /* (Y countdowns) to start/stop the timer. */
+                             /* This value is in microseconds. */
+#define LEAST_VALID       1  /* Don't trust a clicks value lower than this */
+
+/*
+ * Return timer value in 1/2-microsecond units
+ */
+int Read_timer( void )
+{
+  rtems_unsigned32 total;
+  total = 0;
+
+  if ( Timer_driver_Find_average_overhead == 1 )
+    return total;          /* in XXX microsecond units */
+
+  if ( total < LEAST_VALID )
+    return 0;            /* below timer resolution */
+
+  return (total - AVG_OVERHEAD);
+}
+
+
+/*
+ *  Empty function call used in loops to measure basic cost of looping
+ *  in Timing Test Suite.
+ */
+
+rtems_status_code Empty_function(void)
+{
+    return RTEMS_SUCCESSFUL;
+}
+
+void Set_find_average_overhead(
+  rtems_boolean find_flag
+)
+{
+  Timer_driver_Find_average_overhead = find_flag;
+}