new file for MIPS port by Craig Lebakken (lebakken@minn.net) and

Derrick Ostertag (ostertag@transition.com).

37 files changed, 5728 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/mips/p4000/README b/c/src/lib/libbsp/mips/p4000/README
new file mode 100644
index 0000000000..31152f15ec
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/README
@@ -0,0 +1,47 @@
+#
+#  README,v 1.2 1995/05/31 16:56:03 joel Exp
+#
+# @(#)README        08/20/96     1.2
+#
+
+BSP NAME:           p4000
+BOARD:              Algorithmics P4000 SBC
+BUS:                N/A
+CPU FAMILY:         mips
+CPU:                IDT 4650 
+COPROCESSORS:       N/A
+MODE:               32 bit mode
+
+DEBUG MONITOR:      IDT/SIM
+
+PERIPHERALS
+===========
+TIMERS:             4650 internal
+  RESOLUTION:         half of internal clock frequency
+SERIAL PORTS:       IDT/SIM controlled
+REAL-TIME CLOCK:    none
+DMA:                none
+VIDEO:              none
+SCSI:               none
+NETWORKING:         none
+
+DRIVER INFORMATION
+==================
+CLOCK DRIVER:       4650 internal
+IOSUPP DRIVER:      N/A
+SHMSUPP:            N/A 
+TIMER DRIVER:       4650 internal
+TTY DRIVER:         uses IDT/SIM
+
+STDIO
+=====
+PORT:               Console port 0
+ELECTRICAL:         RS-232
+BAUD:               9600
+BITS PER CHARACTER: 8
+PARITY:             None
+STOP BITS:          1
+
+NOTES
+=====
+
diff --git a/c/src/lib/libbsp/mips/p4000/console/console.c b/c/src/lib/libbsp/mips/p4000/console/console.c
new file mode 100644
index 0000000000..cc52dc3c7c
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/console/console.c
@@ -0,0 +1,270 @@
+/*
+ *  This file contains the IDT 4650 console IO package.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/console/console.c:
+ *
+ *  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.
+ *
+ *  console.c,v 1.4 1995/12/05 19:23:02 joel Exp
+ */
+
+
+#ifndef lint
+static char _sccsid[] = "@(#)console.c 08/20/96     1.6\n";
+#endif
+
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <ctype.h>
+
+char idtsim_getchar( void );
+void idtsim_putchar( char c );
+void mips_leddisplay( char a, char b, char c, char d );
+
+
+/*  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;
+ 
+  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
+)
+{
+  *ch = '\0';   /* return NULL for no particular reason */
+  return(TRUE);
+}
+
+/*  inbyte
+ *
+ *  This routine reads a character from the SOURCE.
+ *
+ *  Input parameters: NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  Return values:
+ *    character read from SOURCE
+ */
+
+char inbyte( void )
+{
+  /*
+   *  If polling, wait until a character is available.
+   */
+
+   return idtsim_getchar();
+}
+
+/*  outbyte
+ *
+ *  This routine transmits a character out the SOURCE.  It may support
+ *  XON/XOFF flow control.
+ *
+ *  Input parameters:
+ *    ch  - character to be transmitted
+ *
+ *  Output parameters:  NONE
+ */
+
+void outbyte(
+  char ch
+)
+{
+#define NUM_LEDS 4
+   static unsigned int cur_led = 0;
+   static unsigned char led_chars[NUM_LEDS];
+
+  /*
+   *  If polling, wait for the transmitter to be ready.
+   *  Check for flow control requests and process.
+   *  Then output the character.
+   */
+
+  idtsim_putchar( ch );
+
+  /* print out first four alpha numeric characters in a line */
+  if ( ch == '\n' )
+  {
+    mips_leddisplay( led_chars[0], led_chars[1], led_chars[2], led_chars[3] );
+    cur_led = 0;
+  }
+  else if ( isalnum( ch ) && cur_led < NUM_LEDS )
+  {
+    led_chars[cur_led++] = ch;
+  }
+
+}
+
+
+static int console_fd = -1;
+
+/*
+ *  Open entry point
+ */
+
+rtems_device_driver console_open(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+#if 0
+  int console_fd = open("tty0", 2); /* open for read/write */
+#endif
+  return RTEMS_SUCCESSFUL;
+}
+ 
+/*
+ *  Close entry point
+ */
+
+rtems_device_driver console_close(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+#if 0
+  if ( console_fd )
+    close( console_fd );
+#endif
+  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/mips/p4000/console/led.S b/c/src/lib/libbsp/mips/p4000/console/led.S
new file mode 100644
index 0000000000..b9b7b7e294
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/console/led.S
@@ -0,0 +1,20 @@
+
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtmon.h>
+#include <rtems/score/idtcpu.h>
+
+
+FRAME(mips_leddisplay,sp,0,ra)
+	j ra
+	nop
+ENDFRAME(mips_leddisplay)
+
+FRAME(sbddisplay,sp,0,ra)
+	j	ra
+ENDFRAME(sbddisplay)
+
+
+FRAME(sbdblank,sp,0,ra)
+	j	ra
+ENDFRAME(sbdblank)
+
diff --git a/c/src/lib/libbsp/mips/p4000/include/bsp.h b/c/src/lib/libbsp/mips/p4000/include/bsp.h
new file mode 100644
index 0000000000..1a9f6a5653
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/include/bsp.h
@@ -0,0 +1,120 @@
+/*  bsp.h
+ *
+ *  This include file contains all board IO definitions.
+ *
+ *  XXX : put yours in here
+ *
+ *  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.
+ *
+ *  bsp.h,v 1.4 1995/09/11 19:29:04 joel Exp
+ */
+/* @(#)bsp.h       03/15/96     1.1 */
+
+#ifndef __NO_BSP_h
+#define __NO_BSP_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems.h>
+#include <console.h>
+#include <clockdrv.h>
+
+extern void WriteDisplay( char * string );
+
+/*
+ *  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 */
+
+/*
+ *  Stuff for Time Test 27
+ */
+
+#define MUST_WAIT_FOR_INTERRUPT 0
+
+#define Install_tm27_vector( handler ) set_vector( (handler), 0, 1 )
+
+#define Cause_tm27_intr()
+
+#define Clear_tm27_intr()
+
+#define Lower_tm27_intr()
+
+extern unsigned32 mips_get_timer( void );
+
+#define CPU_CLOCK_RATE_MHZ     (50)
+#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ ) /* equivalent to CPU clock speed in MHz */
+
+/*
+ *  Simple spin delay in microsecond units for device drivers.
+ *  This is very dependent on the clock speed of the target.
+ */
+
+#define delay( microseconds ) \
+  { \
+     unsigned32 _end_clock = mips_get_timer() + microseconds * CLOCKS_PER_MICROSECOND; \
+     _end_clock %= 0x100000000;  /* make sure result is 32 bits */ \
+     \
+     /* handle timer overflow, if necessary */ \
+     while ( _end_clock < mips_get_timer() );  \
+     \
+     while ( _end_clock > mips_get_timer() ); \
+  }
+
+/* Constants */
+
+#define RAM_START 0
+#define RAM_END   0x100000
+
+/* miscellaneous stuff assumed to exist */
+
+extern rtems_configuration_table BSP_Configuration;
+
+/*
+ *  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 );
+
+mips_isr_entry set_vector(                    /* returns old vector */
+  rtems_isr_entry     handler,                  /* isr routine        */
+  rtems_vector_number vector,                   /* vector number      */
+  int                 type                      /* RTEMS or RAW intr  */
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */
diff --git a/c/src/lib/libbsp/mips/p4000/include/coverhd.h b/c/src/lib/libbsp/mips/p4000/include/coverhd.h
new file mode 100644
index 0000000000..716faef06b
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/include/coverhd.h
@@ -0,0 +1,116 @@
+/*  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.
+ *
+ *  coverhd.h,v 1.2 1995/05/31 16:56:15 joel Exp
+ */
+/* @(#)coverhd.h       04/08/96     1.3 */
+
+#ifndef __COVERHD_h
+#define __COVERHD_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CALLING_OVERHEAD_INITIALIZE_EXECUTIVE      5
+#define CALLING_OVERHEAD_SHUTDOWN_EXECUTIVE        4
+#define CALLING_OVERHEAD_TASK_CREATE               6
+#define CALLING_OVERHEAD_TASK_IDENT                4
+#define CALLING_OVERHEAD_TASK_START                5
+#define CALLING_OVERHEAD_TASK_RESTART              4
+#define CALLING_OVERHEAD_TASK_DELETE               4
+#define CALLING_OVERHEAD_TASK_SUSPEND              4
+#define CALLING_OVERHEAD_TASK_RESUME               4
+#define CALLING_OVERHEAD_TASK_SET_PRIORITY         5
+#define CALLING_OVERHEAD_TASK_MODE                 4
+#define CALLING_OVERHEAD_TASK_GET_NOTE             5
+#define CALLING_OVERHEAD_TASK_SET_NOTE             5
+#define CALLING_OVERHEAD_TASK_WAKE_WHEN            9
+#define CALLING_OVERHEAD_TASK_WAKE_AFTER           4
+#define CALLING_OVERHEAD_INTERRUPT_CATCH           5
+#define CALLING_OVERHEAD_CLOCK_GET                 9
+#define CALLING_OVERHEAD_CLOCK_SET                 8
+#define CALLING_OVERHEAD_CLOCK_TICK                3
+
+#define CALLING_OVERHEAD_TIMER_CREATE              4
+#define CALLING_OVERHEAD_TIMER_IDENT               4
+#define CALLING_OVERHEAD_TIMER_DELETE              4
+#define CALLING_OVERHEAD_TIMER_FIRE_AFTER          6
+#define CALLING_OVERHEAD_TIMER_FIRE_WHEN           10
+#define CALLING_OVERHEAD_TIMER_RESET               4
+#define CALLING_OVERHEAD_TIMER_CANCEL              4
+#define CALLING_OVERHEAD_SEMAPHORE_CREATE          5
+#define CALLING_OVERHEAD_SEMAPHORE_IDENT           4
+#define CALLING_OVERHEAD_SEMAPHORE_DELETE          4
+#define CALLING_OVERHEAD_SEMAPHORE_OBTAIN          5
+#define CALLING_OVERHEAD_SEMAPHORE_RELEASE         4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_CREATE      5
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_IDENT       4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_DELETE      4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_SEND        4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_URGENT      4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_BROADCAST   5
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_RECEIVE     5
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_FLUSH       4
+
+#define CALLING_OVERHEAD_EVENT_SEND                4
+#define CALLING_OVERHEAD_EVENT_RECEIVE             5
+#define CALLING_OVERHEAD_SIGNAL_CATCH              5
+#define CALLING_OVERHEAD_SIGNAL_SEND               4
+#define CALLING_OVERHEAD_PARTITION_CREATE          6
+#define CALLING_OVERHEAD_PARTITION_IDENT           4
+#define CALLING_OVERHEAD_PARTITION_DELETE          4
+#define CALLING_OVERHEAD_PARTITION_GET_BUFFER      4
+#define CALLING_OVERHEAD_PARTITION_RETURN_BUFFER   4
+#define CALLING_OVERHEAD_REGION_CREATE             6
+#define CALLING_OVERHEAD_REGION_IDENT              4
+#define CALLING_OVERHEAD_REGION_DELETE             4
+#define CALLING_OVERHEAD_REGION_GET_SEGMENT        5
+#define CALLING_OVERHEAD_REGION_RETURN_SEGMENT     4
+#define CALLING_OVERHEAD_PORT_CREATE               6
+#define CALLING_OVERHEAD_PORT_IDENT                4
+#define CALLING_OVERHEAD_PORT_DELETE               4
+#define CALLING_OVERHEAD_PORT_EXTERNAL_TO_INTERNAL 4
+#define CALLING_OVERHEAD_PORT_INTERNAL_TO_EXTERNAL 4
+
+#define CALLING_OVERHEAD_IO_INITIALIZE             5
+#define CALLING_OVERHEAD_IO_OPEN                   5
+#define CALLING_OVERHEAD_IO_CLOSE                  5
+#define CALLING_OVERHEAD_IO_READ                   5
+#define CALLING_OVERHEAD_IO_WRITE                  5
+#define CALLING_OVERHEAD_IO_CONTROL                5
+#define CALLING_OVERHEAD_FATAL_ERROR_OCCURRED      4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_CREATE     4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_IDENT      4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_DELETE     4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_CANCEL     4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_PERIOD     4
+#define CALLING_OVERHEAD_MULTIPROCESSING_ANNOUNCE  3
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */
diff --git a/c/src/lib/libbsp/mips/p4000/liblnk/lnklib.S b/c/src/lib/libbsp/mips/p4000/liblnk/lnklib.S
new file mode 100644
index 0000000000..fb8f28edbc
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/liblnk/lnklib.S
@@ -0,0 +1,58 @@
+#include "iregdef.h"
+#include "idtcpu.h"
+
+#define FRAME(name,frm_reg,offset,ret_reg)      \
+        .globl  name;                           \
+        .ent    name;                           \
+name:;                                          \
+        .frame  frm_reg,offset,ret_reg
+
+#define ENDFRAME(name)                          \
+        .end name
+
+#define PROM_LINK(name,entry)           \
+        .globl  name;                   \
+        .ent    name;                   \
+name:   la      $2,+entry;              \
+        j       $2;                     \
+        .end name
+
+#define	PROM_ENTRY(x)	(0xbfc00000+((x)*8))
+
+#define PROM_RESET	PROM_ENTRY(0)
+#define PROM_NOT_IMP	PROM_ENTRY(1)
+#define PROM_RESTART	PROM_ENTRY(2)
+#define PROM_REINIT	PROM_ENTRY(3)
+#define	PROM_GETCHAR	PROM_ENTRY(11)
+#define	PROM_PUTCHAR	PROM_ENTRY(12)
+#define	PROM_SHOWCHAR	PROM_ENTRY(13)
+#define	PROM_PRINTF	PROM_ENTRY(16)
+#define	PROM_RETURN	PROM_ENTRY(17)
+
+#define	PROM_RGETS	PROM_ENTRY(25)
+#define PROM_FLUSHCACHE	PROM_ENTRY(28)
+#define PROM_CLEARCACHE	PROM_ENTRY(29)
+#define PROM_SETJMP	PROM_ENTRY(30)
+#define PROM_LONGJMP	PROM_ENTRY(31)
+
+	.text
+
+PROM_LINK(idtsim_putchar, PROM_PUTCHAR)
+PROM_LINK(idtsim_getchar, PROM_GETCHAR)
+PROM_LINK(idtsim_showchar, PROM_SHOWCHAR)
+PROM_LINK(idtsim__exit, PROM_RETURN)
+PROM_LINK(idtsim_reinit, PROM_REINIT)
+PROM_LINK(idtsim_restart, PROM_RESTART)
+PROM_LINK(idtsim_reset, PROM_RESET)
+PROM_LINK(idtsim_promexit, PROM_RETURN)
+PROM_LINK(idtsim_setjmp, PROM_SETJMP)
+PROM_LINK(idtsim_longjmp, PROM_LONGJMP)
+
+FRAME(idtsim_init_sbrk,sp,0,ra)
+	j	ra
+ENDFRAME(idtsim_init_sbrk)
+
+FRAME(idtsim_init_file,sp,0,ra)
+	j	ra
+ENDFRAME(idtsim_init_file)
+
diff --git a/c/src/lib/libbsp/mips/p4000/start/start.S b/c/src/lib/libbsp/mips/p4000/start/start.S
new file mode 100644
index 0000000000..bbedf0c5dd
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/start/start.S
@@ -0,0 +1,298 @@
+/*
+
+Based upon IDT provided code with the following release:
+
+This source code has been made available to you by IDT on an AS-IS
+basis. Anyone receiving this source is licensed under IDT copyrights
+to use it in any way he or she deems fit, including copying it,
+modifying it, compiling it, and redistributing it either with or
+without modifications.  No license under IDT patents or patent
+applications is to be implied by the copyright license.
+
+Any user of this software should understand that IDT cannot provide
+technical support for this software and will not be responsible for
+any consequences resulting from the use of this software.
+
+Any person who transfers this source code or any derivative work must
+include the IDT copyright notice, this paragraph, and the preceeding
+two paragraphs in the transferred software.
+
+COPYRIGHT IDT CORPORATION 1996
+LICENSED MATERIAL - PROGRAM PROPERTY OF IDT
+
+*/ 
+
+/*************************************************************************
+**
+** Copyright 1991-95 Integrated Device Technology, Inc.
+**	All Rights Reserved
+**
+** idt_csu.S -- IDT stand alone startup code
+**
+**************************************************************************/
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtcpu.h>
+#include <rtems/score/idtmon.h>
+
+
+.extern _fbss,4		  /* this is defined by the linker */
+.extern end,4		  /* this is defined by the linker */
+
+.lcomm sim_mem_cfg_struct,12
+
+	.text
+
+
+#define TMP_STKSIZE  1024 
+
+/**************************************************************************
+**
+**  start - Typicl standalone start up code required for R3000/R4000
+**
+**
+**	1)  Initialize the STATUS Register
+**		a) Clear parity error bit
+**		b) Set co_processor 1 usable bit ON
+**		c) Clear all IntMask Enables
+**		d) Set kernel/disabled mode
+**	2)  Initialize Cause Register
+**		a)  clear software interrupt bits       
+**	3)  Determine FPU installed or not
+**		if not, clear CoProcessor 1 usable bit
+**	4)  Clear bss area
+**	5)  MUST allocate temporary stack until memory size determined
+**	    It MUST be uncached to prevent overwriting when caches are cleared
+**	6)  Install exception handlers
+**	7)  Determine memory and cache sizes
+**	8)  Establish permanent stack (cached or uncached as defined by bss)
+**	9)  Flush Instruction and Data caches
+** 	10)  If there is a Translation Lookaside Buffer, Clear the TLB
+** 	11)  Execute initialization code if the IDT/c library is to be used
+** 
+** 	12)  Jump to user's "main()"
+** 	13)  Jump to promexit
+**
+**	IDT/C 5.x defines _R3000, IDT/C 6.x defines _R4000 internally. 
+**	This is used to mark code specific to R3xxx or R4xxx processors.
+**	IDT/C 6.x defines __mips to be the ISA level for which we're 
+**	generating code. This is used to make sure the stack etc. is 
+**	double word aligned, when using -mips3 (default) or -mips2, 
+**	when compiling with IDT/C6.x
+**
+***************************************************************************/
+
+FRAME(start,sp,0,ra)
+
+	.set	noreorder
+#ifdef _R3000
+	li	v0,SR_PE|SR_CU1        /* reset parity error and set */
+					/* cp1 usable */
+#endif
+#ifdef _R4000
+#if __mips==3 || defined(R4650)
+	li	v0,SR_CU1|SR_DE|SR_FR 	/* initally clear ERL, enable FPA 64bit regs*/
+	                                /* 4650: Need fr to be set anyway */
+#else
+	li	v0,SR_CU1|SR_DE 	/* initally clear ERL, enable FPA 32bit regs*/
+#endif mips3
+#endif
+
+	mtc0	v0,C0_SR		/* clr IntMsks/ kernel/disabled mode */
+	nop
+	mtc0	zero,C0_CAUSE		/* clear software interrupts */
+	nop
+
+#ifdef _R4000
+	li	v0,CFG_C_NONCOHERENT	# initialise default cache mode
+	mtc0	v0,C0_CONFIG
+#endif
+
+/*
+**	check to see if an fpu is really plugged in 
+*/
+	li	t3,0xaaaa5555		/*  put a's and 5's in t3	*/
+	mtc1	t3,fp0			/* try to write them into fp0   */	
+	mtc1	zero,fp1		/* try to write zero in fp	*/
+	mfc1	t0,fp0
+	mfc1	t1,fp1
+	nop
+	bne	t0,t3,1f		/* branch if no match  */
+	nop
+	bne	t1,zero,1f		/* double check for positive id   */
+	nop
+	/* We have a FPU. clear fcsr */
+	ctc1	zero, fcr31
+	j	2f			/* status register already correct  */
+	nop
+1:
+#ifdef _R3000
+	li	v0, SR_PE		/* reset parity error/NO cp1 usable */
+#endif
+
+#ifdef _R4000
+        li      v0,SR_DE 		/* clear ERL and disable FPA */
+#endif
+
+	mtc0	v0, C0_SR		/* reset status register */
+2:
+	la  	gp, _gp			
+
+	la	v0,_fbss 		/* clear bss before using it */
+	la	v1,end 			/* end of bss */
+3:	sw	zero,0(v0)
+	bltu	v0,v1,3b
+	add	v0,4 
+
+
+/************************************************************************
+**
+** 	Temporary Stack - needed to  handle stack saves until
+**			  memory size is determined and permanent stack set
+**
+**			  MUST be uncached to avoid confusion at cache
+**			       switching during memory sizing
+**
+*************************************************************************/
+#if __mips==3
+	/* For MIPS 3, we need to be sure that the stack is aligned on a
+	 * double word boundary. 
+	 */
+	andi	t0, v0, 0x7
+	beqz	t0, 11f   /* Last three bits Zero, already aligned */
+	nop
+	add	v0, 4
+11:
+#endif
+
+	or	v0, K1BASE		/* switch to uncached */
+	add	v1, v0, TMP_STKSIZE 	/* end of bss + length of tmp stack */
+	sub	v1, v1, (4*4)		/* overhead */
+	move	sp, v1			/* set sp to top of stack */
+4:	sw	zero, 0(v0)  
+	bltu	v0, v1, 4b		/* clear out temp stack */
+	add	v0, 4 
+	
+	jal	init_exc_vecs		/* install exception handlers */ 
+	nop				/* MUST do before memory probes */
+
+	la	v0, 5f
+	li	v1, K1BASE		/* force into uncached space */
+	or	v0, v1			/* during memory/cache probes */
+	j	v0
+	nop
+5:
+	la	a0, sim_mem_cfg_struct
+	jal	sim_mem_cfg		/* Make SIM call to get mem size */
+	nop
+	la	a0, sim_mem_cfg_struct
+	lw	a0, 0(a0)		/* Get memory size from struct */
+#ifdef _R3000
+	jal	config_Icache
+	nop
+	jal	config_Dcache		/* determine size of D & I caches */
+	nop	
+#endif
+#ifdef _R4000
+	jal	config_cache		/* determine size of D & I caches */
+	nop
+#endif
+
+	move	v0, a0			/* mem_size */
+
+#if __mips==3
+	/* For MIPS 3, we need to be sure that the stack (and hence v0
+	 * here) is aligned on a double word boundary. 
+	 */
+	andi	t0, v0, 0x7
+	beqz	t0, 12f   /* Last three bits Zero, already aligned */
+	nop
+	subu	v0, 4	/* mem_size was not aligned on doubleword bdry????*/
+12:
+#endif
+
+
+
+/**************************************************************************
+**
+**  Permanent Stack - now know top of memory, put permanent stack there	
+**
+***************************************************************************/ 
+
+	la	t2, _fbss		/* cache mode as linked */
+	and	t2, 0xF0000000		/* isolate segment */
+	la	t1, 6f
+	j	t1			/* back to original cache mode */
+	nop
+6:
+	or 	v0, t2			/* stack back to original cache mode */
+	addiu   v0,v0,-16		/* overhead */
+	move	sp, v0			/* now replace count w top of memory */
+	move	v1, v0
+	subu	v1, P_STACKSIZE 	/* clear requested stack size */
+
+7:	sw	zero, 0(v1)		/* clear P_STACKSIZE  stack */ 
+	bltu	v1,v0,7b
+	add	v1, 4 
+	.set	reorder
+
+#ifdef _R3000 
+	jal	flush_Icache	
+	jal	flush_Dcache		/* flush Data & Instruction caches */
+#endif
+#ifdef _R4000 
+	jal	flush_cache_nowrite	/* flush Data & Instruction caches */
+#endif
+
+
+
+/**************************************************************************
+**
+**	If this chip supports a Translation Lookaside Buffer, clear it
+**
+***************************************************************************/ 
+
+	.set	noreorder
+	mfc0	t1,  C0_SR		/* look at Status Register */
+	nop
+	.set 	reorder
+#ifdef _R3000
+	li	t2, SR_TS		/* TLB Shutdown bit */
+	and 	t1,t2      		/* TLB Shutdown if 1 */
+	bnez	t1, 8f			/* skip clearing if no TLB */	
+#endif
+
+#ifndef R4650
+	jal	init_tlb		/* clear the tlb */
+#endif
+
+
+/************************************************************************
+**
+**  Initialization required if using IDT/c or libc.a, standard C Lib 
+**
+**  can SKIP if not necessary for application
+**
+************************************************************************/
+8:
+
+	jal	idtsim_init_sbrk
+	jal	idtsim_init_file
+/***********************  END I/O initialization **********************/
+
+
+	jal	main
+
+	jal	idtsim_promexit
+
+ENDFRAME(start)
+
+
+	.globl	sim_mem_cfg
+sim_mem_cfg:
+	.set noat
+	.set noreorder
+	li	AT, (0xbfc00000+((55)*8))
+	jr	AT
+	nop
+	.set at
+	.set reorder
diff --git a/c/src/lib/libbsp/mips/p4000/startup/bspclean.c b/c/src/lib/libbsp/mips/p4000/startup/bspclean.c
new file mode 100644
index 0000000000..ecaff11004
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/startup/bspclean.c
@@ -0,0 +1,30 @@
+/*  bsp_cleanup()
+ *
+ *  This routine normally is part of start.s and usually returns
+ *  control to a monitor.
+ *
+ *  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.
+ *
+ *  bspclean.c,v 1.2 1995/05/31 16:56:27 joel Exp
+ */
+#ifndef lint
+static char _sccsid[] = "@(#)bspclean.c 03/15/96     1.1\n";
+#endif
+
+
+#include <rtems.h>
+#include <bsp.h>
+
+void bsp_cleanup( void )
+{
+}
diff --git a/c/src/lib/libbsp/mips/p4000/startup/ghlinkcmds b/c/src/lib/libbsp/mips/p4000/startup/ghlinkcmds
new file mode 100644
index 0000000000..cf2a80bf8d
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/startup/ghlinkcmds
@@ -0,0 +1,15 @@
+-map
+-sec
+{
+  .text 0x80010000  :
+  .data  align(16)  :
+  .rodata :
+  .fini :
+#  .sdata :
+  .symtab :
+  .strtab :
+  .debug :
+#  .sbss :
+  .bss     align(8)  :
+  .init 0xbfc00000 :
+}
diff --git a/c/src/lib/libbsp/mips/p4000/startup/idtmem.S b/c/src/lib/libbsp/mips/p4000/startup/idtmem.S
new file mode 100644
index 0000000000..66c1a4ecbc
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/startup/idtmem.S
@@ -0,0 +1,938 @@
+/*
+
+Based upon IDT provided code with the following release:
+
+This source code has been made available to you by IDT on an AS-IS
+basis. Anyone receiving this source is licensed under IDT copyrights
+to use it in any way he or she deems fit, including copying it,
+modifying it, compiling it, and redistributing it either with or
+without modifications.  No license under IDT patents or patent
+applications is to be implied by the copyright license.
+
+Any user of this software should understand that IDT cannot provide
+technical support for this software and will not be responsible for
+any consequences resulting from the use of this software.
+
+Any person who transfers this source code or any derivative work must
+include the IDT copyright notice, this paragraph, and the preceeding
+two paragraphs in the transferred software.
+
+COPYRIGHT IDT CORPORATION 1996
+LICENSED MATERIAL - PROGRAM PROPERTY OF IDT
+
+*/
+
+/************************************************************************
+**
+**	idtmem.s - memory and cache functions
+**
+**	Copyright 1991 Integrated Device Technology, Inc.
+**	All Rights Reserved
+**
+**************************************************************************/
+
+/*
+ * 950313: Ketan fixed bugs in mfc0/mtc0 hazards, and removed hack 
+ * to set mem_size. 
+ */
+
+#include "iregdef.h"
+#include "idtcpu.h"  
+#include "idtmon.h"  
+#include "saunder.h"
+
+
+	.data
+mem_size:
+	.word	0	
+dcache_size:
+	.word 	0		
+icache_size:
+#if defined(CPU_R3000)
+	.word	MINCACHE	
+#endif
+#if defined(CPU_R4000)
+	.word	0
+#endif
+
+#if defined(CPU_R4000)
+	.data
+scache_size:
+	.word 	0
+icache_linesize:
+	.word	0
+dcache_linesize:
+	.word	0
+scache_linesize:
+	.word	0
+#endif
+
+
+		.text
+
+#if defined (CPU_R3000)
+#define CONFIGFRM ((2*4)+4)	
+
+/*************************************************************************
+**
+** Config_Dcache() -- determine size of Data cache 
+**
+**************************************************************************/
+
+FRAME(config_Dcache,sp, CONFIGFRM, ra)
+	.set	noreorder
+	subu	sp,CONFIGFRM
+	sw	ra,CONFIGFRM-4(sp)	/* save return address */
+	sw	s0,4*4(sp)		/* save s0 in first regsave slot */
+	mfc0	s0,C0_SR		/* save SR */
+	nop
+	mtc0	zero,C0_SR		/* disable interrupts */
+	.set	reorder
+	jal	_size_cache		/* returns Data cache size in v0 */
+	sw	v0, dcache_size		/* save it */
+	and 	s0, ~SR_PE		/* do not clear PE */
+	.set	noreorder
+	mtc0	s0,C0_SR		/* restore SR */
+	nop
+	.set	reorder
+	lw	s0, 4*4(sp)		/* restore s0 */
+	lw	ra,CONFIGFRM-4(sp)	/* restore ra */
+	addu	sp,CONFIGFRM		/* pop stack */
+	j	ra
+ENDFRAME(config_Dcache)
+ 
+
+/*************************************************************************
+**
+** Config_Icache() -- determine size of Instruction cache
+**		      MUST be run in uncached mode/handled in idt_csu.s
+**
+**************************************************************************/
+
+FRAME(config_Icache,sp, CONFIGFRM, ra)
+	.set	noreorder
+	subu	sp,CONFIGFRM
+	sw	ra,CONFIGFRM-4(sp)	/* save return address */
+	sw	s0,4*4(sp)		/* save s0 in first regsave slot */
+	mfc0	s0,C0_SR		/* save SR */
+	nop
+ 	mtc0	zero, C0_SR		/* disable interrupts */
+	li	v0,SR_SWC		/* swap caches/disable ints  */
+	mtc0	v0,C0_SR
+	nop
+	.set	reorder
+	jal	_size_cache		/* returns instruction cache size */
+	.set	noreorder
+	mtc0	zero,C0_SR		/* swap back caches */  
+	nop
+	and	s0,~SR_PE		/* do not inadvertantly clear PE */
+	mtc0	s0,C0_SR		/* restore SR */
+	nop
+	.set	reorder
+	sw	v0, icache_size		/* save it AFTER caches back */
+	lw	s0,4*4(sp)		/* restore s0 */
+	lw	ra,CONFIGFRM-4(sp)	/* restore ra */
+	addu	sp,CONFIGFRM		/* pop stack */
+	j	ra
+ENDFRAME(config_Icache)
+
+/************************************************************************
+**
+** _size_cache()
+** returns cache size in v0
+**
+************************************************************************/
+
+FRAME(_size_cache,sp,0,ra)
+	.set	noreorder
+	mfc0	t0,C0_SR		/* save current sr */
+	nop
+	and	t0,~SR_PE		/* do not inadvertently clear PE */
+	or	v0,t0,SR_ISC		/* isolate cache */
+	mtc0	v0,C0_SR
+	/*
+	 * First check if there is a cache there at all
+	 */
+	move	v0,zero
+	li	v1,0xa5a5a5a5		/* distinctive pattern */
+	sw	v1,K0BASE		/* try to write into cache */
+	lw	t1,K0BASE		/* try to read from cache */
+	nop
+	mfc0	t2,C0_SR
+	nop
+	.set	reorder
+	and	t2,SR_CM
+	bne	t2,zero,3f		/* cache miss, must be no cache */
+	bne	v1,t1,3f		/* data not equal -> no cache */
+	/*
+	 * Clear cache size boundries to known state.
+	 */
+	li	v0,MINCACHE
+1:
+	sw	zero,K0BASE(v0)
+	sll	v0,1
+	ble	v0,MAXCACHE,1b
+
+	li	v0,-1
+	sw	v0,K0BASE(zero)		/* store marker in cache */
+	li	v0,MINCACHE		/* MIN cache size */
+
+2:	lw	v1,K0BASE(v0)		/* Look for marker */
+	bne	v1,zero,3f		/* found marker */
+	sll	v0,1			/* cache size * 2 */
+	ble	v0,MAXCACHE,2b		/* keep looking */
+	move	v0,zero			/* must be no cache */
+	.set	noreorder
+3:	mtc0	t0,C0_SR		/* restore sr */
+	j	ra
+	nop
+ENDFRAME(_size_cache)
+	.set	reorder
+
+
+#define FLUSHFRM (2*4)
+
+/***************************************************************************
+**
+** flush_Dcache() -  flush entire Data cache
+**
+****************************************************************************/
+FRAME(flush_Dcache,sp,FLUSHFRM,ra)
+	lw      t2, dcache_size		
+	.set	noreorder
+	mfc0	t3,C0_SR		/* save SR */
+	nop
+	and	t3,~SR_PE		/* dont inadvertently clear PE */
+	beq	t2,zero,_Dflush_done	/* no D cache, get out! */
+	nop
+	li	v0, SR_ISC		/* isolate cache */
+	mtc0	v0, C0_SR
+	nop
+	.set	reorder
+	li	t0,K0BASE		/* set loop registers  */
+	or	t1,t0,t2
+
+2:	sb	zero,0(t0)
+	sb	zero,4(t0)
+	sb	zero,8(t0)
+	sb	zero,12(t0)
+	sb	zero,16(t0)
+	sb	zero,20(t0)
+	sb	zero,24(t0)
+	addu	t0,32
+	sb	zero,-4(t0)
+	bne	t0,t1,2b
+
+	.set	noreorder
+_Dflush_done:
+	mtc0	t3,C0_SR		/* restore Status Register */
+	.set	reorder
+	j	ra
+ENDFRAME(flush_Dcache)
+
+
+/***************************************************************************
+**
+** flush_Icache() -  flush entire Instruction cache
+**
+**	NOTE: Icache can only be flushed/cleared when uncached
+**	      Code forces into uncached memory regardless of calling mode
+**
+****************************************************************************/
+FRAME(flush_Icache,sp,FLUSHFRM,ra)
+	lw	t1,icache_size 
+	.set	noreorder
+	mfc0	t3,C0_SR		/* save SR */
+	nop
+	la	v0,1f
+	li	v1,K1BASE
+	or	v0,v1
+	j	v0			/* force into non-cached space */
+	nop
+1:
+	and	t3,~SR_PE		/* dont inadvertently clear PE */
+	beq	t1,zero,_Iflush_done	/* no i-cache get out */
+	nop
+	li	v0,SR_ISC|SR_SWC	/* disable intr, isolate and swap */
+	mtc0	v0,C0_SR
+	li	t0,K0BASE
+	.set	reorder
+	or	t1,t0,t1
+
+1:	sb	zero,0(t0)
+	sb	zero,4(t0)
+	sb	zero,8(t0)
+	sb	zero,12(t0)
+	sb	zero,16(t0)
+	sb	zero,20(t0)
+	sb	zero,24(t0)
+	addu	t0,32
+	sb	zero,-4(t0)
+	bne	t0,t1,1b
+	.set	noreorder
+_Iflush_done:
+	mtc0	t3,C0_SR		/* un-isolate, enable interrupts */
+	.set	reorder
+	j	ra
+ENDFRAME(flush_Icache)
+
+/**************************************************************************
+**
+** clear_Dcache(base_addr, byte_count) - flush portion of Data cache
+**
+**      a0 = base address of portion to be cleared
+**      a1 = byte count of length
+**
+***************************************************************************/
+FRAME(clear_Dcache,sp,0,ra)
+
+	lw  	t2, dcache_size		/* Data cache size */
+	.set	noreorder
+	mfc0	t3,C0_SR		/* save SR */
+	nop
+	and	t3,~SR_PE		/* dont inadvertently clear PE */
+	nop
+	nop
+	.set	reorder
+	/*
+	 * flush data cache
+	 */
+
+	.set	noreorder
+	nop
+	li	v0,SR_ISC		/* isolate data cache */
+	mtc0	v0,C0_SR
+	.set	reorder
+	bltu	t2,a1,1f		/* cache is smaller than region */
+	move	t2,a1
+1:	addu	t2,a0			/* ending address + 1 */
+	move	t0,a0
+
+1:	sb	zero,0(t0)
+	sb	zero,4(t0)
+	sb	zero,8(t0)
+	sb	zero,12(t0)
+	sb	zero,16(t0)
+	sb	zero,20(t0)
+	sb	zero,24(t0)
+	addu	t0,32
+	sb	zero,-4(t0)
+	bltu	t0,t2,1b
+
+	.set	noreorder
+	mtc0	t3,C0_SR		/* un-isolate, enable interrupts */
+	nop
+	.set	reorder
+	j	ra
+ENDFRAME(clear_Dcache)
+
+
+/**************************************************************************
+**
+** clear_Icache(base_addr, byte_count) - flush portion of Instruction cache
+**
+**      a0 = base address of portion to be cleared
+**      a1 = byte count of length
+**
+**	NOTE: Icache can only be flushed/cleared when uncached
+**	      Code forces into uncached memory regardless of calling mode
+**
+***************************************************************************/
+FRAME(clear_Icache,sp,0,ra)
+
+	lw      t1, icache_size		/* Instruction cache size */
+	/*
+	 * flush text cache
+	 */
+	.set	noreorder
+	mfc0	t3,C0_SR		/* save SR */
+	nop 
+	la	v0,1f
+	li	v1,K1BASE
+	or	v0,v1
+	j	v0			/* force into non-cached space */
+	nop
+1:
+	and	t3,~SR_PE		/* dont inadvertently clear PE */
+	nop
+	nop
+	li	v0,SR_ISC|SR_SWC	/* disable intr, isolate and swap */
+	mtc0	v0,C0_SR
+	.set	reorder
+	bltu	t1,a1,1f		/* cache is smaller than region */
+	move	t1,a1
+1:	addu	t1,a0			/* ending address + 1 */
+	move	t0,a0
+
+	sb	zero,0(t0)
+	sb	zero,4(t0)
+	sb	zero,8(t0)
+	sb	zero,12(t0)
+	sb	zero,16(t0)
+	sb	zero,20(t0)
+	sb	zero,24(t0)
+	addu	t0,32
+	sb	zero,-4(t0)
+	bltu	t0,t1,1b
+	.set	noreorder
+	mtc0	t3,C0_SR		/* un-isolate, enable interrupts */
+	nop
+	nop
+	nop				/* allow time for caches to swap */
+	.set	reorder
+	j	ra
+ENDFRAME(clear_Icache)
+
+
+/**************************************************************************
+**
+**  get_mem_conf - get memory configuration 
+**
+***************************************************************************/
+
+
+FRAME(get_mem_conf,sp,0,ra)
+
+	lw	t6, mem_size
+	sw	t6, 0(a0)
+	lw	t7, icache_size
+	sw	t7, 4(a0)
+	lw	t8, dcache_size
+	sw	t8, 8(a0) 
+	j	ra
+
+ENDFRAME(get_mem_conf)
+#endif /* defined CPU_R3000 */
+
+#if defined(CPU_R4000)
+#define LEAF(label)	FRAME(label,sp,0,ra)
+#define XLEAF(label) \
+	.globl label ; \
+label:
+#define END(label)	ENDFRAME(label)
+
+/*
+ * cacheop macro to automate cache operations
+ * first some helpers...
+ */
+#define _mincache(size, maxsize) \
+	bltu	size,maxsize,8f ;	\
+	move	size,maxsize ;		\
+8:
+
+#define _align(tmp, minaddr, maxaddr, linesize) \
+	subu	tmp,linesize,1 ;	\
+	not	tmp ;			\
+	and	minaddr,tmp ;		\
+	addu	maxaddr,-1 ;		\
+	and	maxaddr,tmp
+
+/* This is a bit of a hack really because it relies on minaddr=a0 */
+#define _doop1(op1) \
+	cache	op1,0(a0) 
+
+#define _doop2(op1, op2) \
+	cache	op1,0(a0) ;		\
+	cache	op2,0(a0) 
+
+/* specials for cache initialisation */
+#define _doop1lw1(op1) \
+	cache	op1,0(a0) ;		\
+	lw	zero,0(a0) ;		\
+	cache	op1,0(a0) 
+
+#define _doop121(op1,op2) \
+	cache	op1,0(a0) ;		\
+	nop;				\
+	cache	op2,0(a0) ;		\
+	nop;				\
+	cache	op1,0(a0) 
+
+#define _oploopn(minaddr, maxaddr, linesize, tag, ops) \
+	.set	noreorder ;		\
+7: 	_doop##tag##ops ;	 	\
+	bne     minaddr,maxaddr,7b ;	\
+	addu   	minaddr,linesize ;	\
+	.set	reorder
+
+/* finally the cache operation macros */
+#define icacheopn(kva, n, cache_size, cache_linesize, tag, ops) \
+	_mincache(n, cache_size);	\
+ 	blez	n,9f ;			\
+	addu	n,kva ;			\
+	_align(t1, kva, n, cache_linesize) ; \
+	_oploopn(kva, n, cache_linesize, tag, ops) ; \
+9:
+
+#define vcacheopn(kva, n, cache_size, cache_linesize, tag, ops) \
+ 	blez	n,9f ;			\
+	addu	n,kva ;			\
+	_align(t1, kva, n, cache_linesize) ; \
+	_oploopn(kva, n, cache_linesize, tag, ops) ; \
+9:
+
+#define icacheop(kva, n, cache_size, cache_linesize, op) \
+	icacheopn(kva, n, cache_size, cache_linesize, 1, (op))
+
+#define vcacheop(kva, n, cache_size, cache_linesize, op) \
+	vcacheopn(kva, n, cache_size, cache_linesize, 1, (op))
+
+	.text
+
+/*
+ * static void _size_cache()    R4000
+ * 
+ * Internal routine to determine cache sizes by looking at R4000 config
+ * register.  Sizes are returned in registers, as follows:
+ *	t2	icache size
+ *	t3	dcache size
+ *	t6	scache size
+ *	t4	icache line size
+ *	t5	dcache line size
+ *	t7	scache line size
+ */
+LEAF(_size_cache)
+	mfc0	t0,C0_CONFIG
+
+	and	t1,t0,CFG_ICMASK
+	srl	t1,CFG_ICSHIFT
+	li	t2,0x1000
+	sll	t2,t1
+
+	and	t1,t0,CFG_DCMASK
+	srl	t1,CFG_DCSHIFT
+	li	t3,0x1000
+	sll	t3,t1
+
+	li	t4,32
+	and	t1,t0,CFG_IB
+	bnez	t1,1f
+	li	t4,16
+1:	
+
+	li	t5,32
+	and	t1,t0,CFG_DB
+	bnez	t1,1f
+	li	t5,16
+1:	
+
+	move	t6,zero			# default to no scache
+	move	t7,zero			#
+
+	and	t1,t0,CFG_C_UNCACHED	# test config register
+	bnez	t1,1f			# no scache if uncached/non-coherent
+	
+	li	t6,0x100000		# assume 1Mb scache <<-NOTE
+	and	t1,t0,CFG_SBMASK
+	srl	t1,CFG_SBSHIFT
+	li	t7,16
+	sll	t7,t1
+1:	j	ra
+END(_size_cache)
+
+
+/*
+ * void config_cache()   R4000
+ * 
+ * Work out size of I, D & S caches, assuming they are already initialised.
+ */
+LEAF(config_cache)
+	lw	t0,icache_size
+	bgtz	t0,8f			# already known?
+	move	v0,ra
+	bal	_size_cache
+	move	ra,v0
+
+	sw	t2,icache_size
+	sw	t3,dcache_size
+	sw	t6,scache_size
+	sw	t4,icache_linesize
+	sw	t5,dcache_linesize
+	sw	t7,scache_linesize
+8:	j	ra
+END(config_cache)
+
+
+/*
+ * void _init_cache()   R4000
+ */
+LEAF(_init_cache)
+	/*
+ 	 * First work out the sizes
+	 */
+	move	v0,ra
+	bal	_size_cache
+	move	ra,v0
+	
+	/*
+	 * The caches may be in an indeterminate state,
+	 * so we force good parity into them by doing an
+	 * invalidate, load/fill, invalidate for each line.
+	 */
+
+	/* disable all i/u and cache exceptions */
+	mfc0	v0,C0_SR
+	and	v1,v0,~SR_IE
+	or	v1,SR_DE
+	mtc0	v1,C0_SR
+
+	mtc0	zero,C0_TAGLO
+	mtc0	zero,C0_TAGHI
+
+	/* assume bottom of RAM will generate good parity for the cache */
+	li	a0,PHYS_TO_K0(0)
+	move	a2,t2		# icache_size
+	move	a3,t4		# icache_linesize
+	move	a1,a2
+	icacheopn(a0,a1,a2,a3,121,(Index_Store_Tag_I,Fill_I))
+
+	li	a0,PHYS_TO_K0(0)
+	move	a2,t3		# dcache_size
+	move	a3,t5		# dcache_linesize
+	move	a1,a2
+	icacheopn(a0,a1,a2,a3,1lw1,(Index_Store_Tag_D))
+
+	/* assume unified I & D in scache <<-NOTE */
+	blez	t6,1f
+	li	a0,PHYS_TO_K0(0)
+	move	a2,t6
+	move	a3,t7
+	move	a1,a2
+	icacheopn(a0,a1,a2,a3,1lw1,(Index_Store_Tag_SD))
+
+1:	mtc0	v0,C0_SR
+	j	ra
+END(_init_cache)
+	
+
+/*
+ * void flush_cache (void)   R4000
+ *
+ * Flush and invalidate all caches
+ */
+LEAF(flush_cache)
+	/* secondary cacheops do all the work if present */
+	lw	a2,scache_size
+	blez	a2,1f
+	lw	a3,scache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_SD)
+	b	2f
+
+1:	
+	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Invalidate_I)
+
+	lw	a2,dcache_size
+	lw	a3,dcache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_D)
+
+2:	j	ra
+END(flush_cache)
+	
+/*
+ * void flush_cache_nowrite (void)   R4000
+ *
+ * Invalidate all caches
+ */
+LEAF(flush_cache_nowrite)
+	mfc0	v0,C0_SR
+	and	v1,v0,~SR_IE
+	mtc0	v1,C0_SR
+
+	mtc0	zero,C0_TAGLO
+	mtc0	zero,C0_TAGHI
+
+	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Invalidate_I)
+
+	lw	a2,dcache_size
+	lw	a3,dcache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
+
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_SD)
+
+2:	mtc0	v0,C0_SR
+	j	ra
+END(flush_cache_nowrite)
+	
+/*
+ * void clean_cache (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate address range in all caches
+ */
+LEAF(clean_cache)
+XLEAF(clear_cache)
+
+	/* secondary cacheops do all the work (if fitted) */
+	lw	a2,scache_size
+	blez	a2,1f
+	lw	a3,scache_linesize
+	vcacheop(a0,a1,a2,a3,Hit_Writeback_Inv_SD)
+	b	2f
+
+1:	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+	/* save kva & n for subsequent loop */
+	move	t8,a0
+	move	t9,a1
+	vcacheop(a0,a1,a2,a3,Hit_Invalidate_I)
+
+	lw	a2,dcache_size
+	lw	a3,dcache_linesize
+	/* restore kva & n */
+	move	a0,t8
+	move	a1,t9
+	vcacheop(a0,a1,a2,a3,Hit_Writeback_Inv_D)
+
+2:	j	ra
+END(clean_cache)
+	
+/*
+ * void clean_dcache (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate address range in primary data cache
+ */
+LEAF(clean_dcache)
+	lw	a2,dcache_size
+	blez	a2,2f
+	lw	a3,dcache_linesize
+
+	vcacheop(a0,a1,a2,a3,Hit_Writeback_Inv_D)
+
+2:	j	ra
+END(clean_dcache)
+	
+/*
+ * void clean_dcache_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate indexed range in primary data cache
+ */
+LEAF(clean_dcache_indexed)
+	lw	a2,dcache_size
+	blez	a2,2f
+	lw	a3,dcache_linesize
+
+#ifdef CPU_ORION
+	srl	a2,1			# do one set (half cache) at a time
+	move	t8,a0			# save kva & n
+	move	t9,a1
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_D)
+
+	addu	a0,t8,a2		# do next set
+	move	a1,t9			# restore n
+#endif
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_D)
+
+2:	j	ra
+END(clean_dcache_indexed)
+	
+/*
+ * void clean_dcache_nowrite (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate an address range in primary data cache
+ */
+LEAF(clean_dcache_nowrite)
+	lw	a2,dcache_size
+	blez	a2,2f
+	lw	a3,dcache_linesize
+
+	vcacheop(a0,a1,a2,a3,Hit_Invalidate_D)
+
+2:	j	ra
+END(clean_dcache_nowrite)
+	
+/*
+ * void clean_dcache_nowrite_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate indexed range in primary data cache
+ */
+LEAF(clean_dcache_nowrite_indexed)
+	mfc0	v0,C0_SR
+	and	v1,v0,~SR_IE
+	mtc0	v1,C0_SR
+
+	mtc0	zero,C0_TAGLO
+	mtc0	zero,C0_TAGHI
+
+	lw	a2,dcache_size
+	blez	a2,2f
+	lw	a3,dcache_linesize
+
+#ifdef CPU_ORION
+	srl	a2,1			# do one set (half cache) at a time
+	move	t8,a0			# save kva & n
+	move	t9,a1
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
+
+	addu	a0,t8,a2		# do next set
+	move	a1,t9			# restore n
+#endif
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
+
+2:	mtc0	v0,C0_SR
+	j	ra
+END(clean_dcache_nowrite_indexed)
+	
+/*
+ * void clean_icache (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate address range in primary instruction cache
+ */
+LEAF(clean_icache)
+	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+
+	vcacheop(a0,a1,a2,a3,Hit_Invalidate_I)
+
+2:	j	ra
+END(clean_icache)
+	
+/*
+ * void clean_icache_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate indexed range in primary instruction cache
+ */
+LEAF(clean_icache_indexed)
+	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+
+#ifdef CPU_ORION
+	srl	a2,1			# do one set (half cache) at a time
+	move	t8,a0			# save kva & n
+	move	t9,a1
+	icacheop(a0,a1,a2,a3,Index_Invalidate_I)
+
+	addu	a0,t8,a2		# do next set
+	move	a1,t9			# restore n
+#endif
+	icacheop(a0,a1,a2,a3,Index_Invalidate_I)
+
+2:	j	ra
+END(clean_icache_indexed)
+	
+
+
+/*
+ * void clean_scache (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate address range in secondary cache
+ */
+LEAF(clean_scache)
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+	vcacheop(a0,a1,a2,a3,Hit_Writeback_Inv_SD)
+
+2:	j	ra
+END(clean_scache)
+	
+/*
+ * void clean_scache_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate indexed range in secondary cache
+ */
+LEAF(clean_scache_indexed)
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_SD)
+
+2:	j	ra
+END(clean_scache_indexed)
+	
+/*
+ * void clean_scache_nowrite (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate an address range in secondary cache
+ */
+LEAF(clean_scache_nowrite)
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+
+	vcacheop(a0,a1,a2,a3,Hit_Invalidate_SD)
+
+2:	j	ra
+END(clean_scache_nowrite)
+	
+/*
+ * void clean_scache_nowrite_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate indexed range in secondary cache
+ */
+LEAF(clean_scache_nowrite_indexed)
+	mfc0	v0,C0_SR
+	and	v1,v0,~SR_IE
+	mtc0	v1,C0_SR
+
+	mtc0	zero,C0_TAGLO
+	mtc0	zero,C0_TAGHI
+
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_SD)
+
+2:	mtc0	v0,C0_SR
+	j	ra
+END(clean_scache_nowrite_indexed)
+	
+/**************************************************************************
+**
+**  get_mem_conf - get memory configuration  R4000
+**
+***************************************************************************/
+
+
+FRAME(get_mem_conf,sp,0,ra)
+
+	lw	t6, mem_size
+	sw	t6, 0(a0)
+	lw	t7, icache_size
+	sw	t7, 4(a0)
+	lw	t8, dcache_size
+	sw	t8, 8(a0) 
+	lw	t7, scache_size
+	sw	t7, 12(a0) 
+	j	ra
+
+ENDFRAME(get_mem_conf)
+
+#endif /* defined(CPU_R4000) */
+
+/*
+ * void set_mem_size (mem_size) 
+ *
+ * config_memory()'s memory size gets written into mem_size here.
+ * Now we don't need to call config_cache() with memory size - New to IDTC6.0
+ */
+FRAME(set_memory_size,sp,0,ra)
+	sw	a0, mem_size
+	j	ra
+ENDFRAME(set_memory_size)
+
+
diff --git a/c/src/lib/libbsp/mips/p4000/startup/linkcmds b/c/src/lib/libbsp/mips/p4000/startup/linkcmds
new file mode 100644
index 0000000000..e9d0566a12
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/startup/linkcmds
@@ -0,0 +1,69 @@
+/* @(#)linkcmds       04/08/96     1.2 */
+OUTPUT_FORMAT("elf32-bigmips")
+OUTPUT_ARCH(mips)
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+_DYNAMIC_LINK = 0;
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  .text 0x80030000  :				/* */
+/*  .text 0xa0020000  :				/* */
+/*  .text 0x00020000  :				/* */
+  {
+    _ftext = . ;
+    *(.text)
+    CREATE_OBJECT_SYMBOLS
+    _etext = .;
+  }
+  .init    ALIGN(8)  : { *(.init)    } =0
+  .fini    ALIGN(8)  : { *(.fini)    } =0
+  .ctors   ALIGN(8)  : { *(.ctors)   }
+  .dtors   ALIGN(8)  : { *(.dtors)   }
+  .rodata  ALIGN(8)  : { *(.rodata)  }
+  .rodata1 ALIGN(8)  :
+    {
+      *(.rodata1)
+      . = ALIGN(8);
+    }
+  .reginfo . : { *(.reginfo) }
+  /* also: .hash .dynsym .dynstr .plt(if r/o) .rel.got */
+  /* Read-write section, merged into data segment: */
+  .data  ALIGN(16)  :
+  {
+    _fdata = . ;
+    *(.data)
+    CONSTRUCTORS
+  }
+  .data1 ALIGN(8)  : { *(.data1) }
+  _gp = . + 0x8000;
+  .lit8 . : { *(.lit8) }
+  .lit4 . : { *(.lit4) }
+  /* also (before uninitialized portion): .dynamic .got .plt(if r/w)
+     (or does .dynamic go into its own segment?) */
+  /* We want the small data sections together, so single-instruction offsets
+     can access them all, and initialized data all before uninitialized, so
+     we can shorten the on-disk segment size.  */
+  .sdata   ALIGN(8)  : { *(.sdata) }
+  _edata  =  .;
+  __bss_start = ALIGN(8);
+  _fbss = .;
+  .sbss    ALIGN(8)  : { *(.sbss) *(.scommon) }
+  .bss     ALIGN(8)  :
+  {
+   *(.bss)
+   *(COMMON)
+   _end = . ;
+   end = . ;
+  }
+  /* Debug sections.  These should never be loadable, but they must have
+     zero addresses for the debuggers to work correctly.  */
+  .line			0 : { *(.line)			}
+  .debug		0 : { *(.debug)			}
+  .debug_sfnames	0 : { *(.debug_sfnames)		}
+  .debug_srcinfo	0 : { *(.debug_srcinfo)		}
+  .debug_macinfo	0 : { *(.debug_macinfo)		}
+  .debug_pubnames	0 : { *(.debug_pubnames)	}
+  .debug_aranges	0 : { *(.debug_aranges)		}
+}
+
diff --git a/c/src/lib/libbsp/mips/p4000/startup/setvec.c b/c/src/lib/libbsp/mips/p4000/startup/setvec.c
new file mode 100644
index 0000000000..1c6b581296
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/startup/setvec.c
@@ -0,0 +1,51 @@
+/*  set_vector
+ *
+ *  This routine installs an interrupt vector on the target Board/CPU.
+ *  This routine is allowed to be as board dependent as necessary.
+ *
+ *  INPUT:
+ *    handler - interrupt handler entry point
+ *    vector  - vector number
+ *    type    - 0 indicates raw hardware connect
+ *              1 indicates RTEMS interrupt connect
+ *
+ *  RETURNS:
+ *    address of previous interrupt handler
+ *
+ *  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.
+ *
+ *  setvec.c,v 1.2 1995/05/31 16:56:35 joel Exp
+ */
+
+#ifndef lint
+static char _sccsid[] = "@(#)setvec.c 04/25/96     1.2\n";
+#endif
+
+#include <rtems.h>
+#include <bsp.h>
+
+#include <excepthdr.h>
+
+mips_isr_entry set_vector(                    /* returns old vector */
+  rtems_isr_entry     handler,                  /* isr routine        */
+  rtems_vector_number vector,                   /* vector number      */
+  int                 type                      /* RTEMS or RAW intr  */
+)
+{
+  mips_isr_entry previous_isr;
+
+  if ( type )
+    rtems_interrupt_catch( handler, vector, (rtems_isr_entry *) &previous_isr );
+  else {
+    /* XXX: install non-RTEMS ISR as "raw" interupt */
+    rtems_interrupt_catch( handler, vector, (rtems_isr_entry *) &previous_isr );
+  }
+  return previous_isr;
+}
+
diff --git a/c/src/lib/libbsp/mips/p4000/times b/c/src/lib/libbsp/mips/p4000/times
new file mode 100644
index 0000000000..6a3dbfe1fb
--- /dev/null
+++ b/c/src/lib/libbsp/mips/p4000/times
@@ -0,0 +1,200 @@
+#
+#  Timing Test Suite Results for the NO_BSP
+#
+#  NOTE: This is just a template.  The times are irrelevant since this BSP
+#        can only be compiled -- not executed.
+#
+#  times,v 1.2 1995/12/07 15:44:23 joel Exp
+#
+# @(#)times        08/01/96     1.4
+
+NOTE:  To obtain the execution time in microseconds, divide the number of
+       cycles by the clock speed.  For example, if rtems_semaphore create
+       is reported to be 1164 cycles, then at 66 Mhz it takes 17.64
+       microseconds or 8.75 microseconds at 133 Mhz.
+
+Board: Algorithmics P4000i 
+CPU: IDT 4650
+Clock Speed: 100MHz
+Memory Configuration: SRAM, DRAM, cache, etc
+Wait States:
+
+Times Reported in: cycles
+Timer Source: on-CPU cycle counter
+
+Column A:RTEMS compiled with 64 bit pointers and 64 bit unsigned32 types
+Column B:RTEMS compiled with 32 bit pointers and 32 bit unsigned32 types
+
+#                          DESCRIPTION                                 A    B
+== =================================================================  ==== ====
+ 1 rtems_semaphore_create                                              788  759
+   rtems_semaphore_delete                                              903  945
+   rtems_semaphore_obtain: available                                   119  119
+   rtems_semaphore_obtain: not available -- NO_WAIT                    118  118
+   rtems_semaphore_release: no waiting tasks                           127  127
+
+ 2 rtems_semaphore_obtain: not available -- caller blocks              842  840
+
+ 3 rtems_semaphore_release: task readied -- preempts caller            777  751
+
+ 4 rtems_task_restart: blocked task -- preempts caller                1611 1595
+   rtems_task_restart: ready task -- preempts caller                  1253 1395
+   rtems_semaphore_release: task readied -- returns to caller          365  345
+   rtems_task_create                                                   798  797
+   rtems_task_start                                                    464  460
+   rtems_task_restart: suspended task -- returns to caller             517  517
+   rtems_task_delete: suspended task                                   529  595
+   rtems_task_restart: ready task -- returns to caller                 527  525
+   rtems_task_restart: blocked task -- returns to caller               707  684
+   rtems_task_delete: blocked task                                     609  675
+
+ 5 rtems_task_suspend: calling task                                    549  549
+   rtems_task_resume: task readied -- preempts caller                  702  699
+
+ 6 rtems_task_restart: calling task                                    291  291
+   rtems_task_suspend: returns to caller                               195  194
+   rtems_task_resume: task readied -- returns to caller                198  198
+   rtems_task_delete: ready task                                       734  736
+
+ 7 rtems_task_restart: suspended task -- preempts caller              1049  990
+
+ 8 rtems_task_set_priority: obtain current priority                     94   94
+   rtems_task_set_priority: returns to caller                          418  355
+   rtems_task_mode: obtain current mode                                 44   43
+   rtems_task_mode: no reschedule                                        0   49
+   rtems_task_mode: reschedule -- returns to caller                      0  232 
+   rtems_task_mode: reschedule -- preempts caller                        0  687
+   rtems_task_set_note                                                   0  101
+   rtems_task_get_note                                                   0  103
+   rtems_clock_set                                                       0  237
+   rtems_clock_get                                                       0   16
+
+ 9 rtems_message_queue_create                                         3583 3432
+   rtems_message_queue_send: no waiting tasks                          252  252
+   rtems_message_queue_urgent: no waiting tasks                        252  252
+   rtems_message_queue_receive: available                              207  207
+   rtems_message_queue_flush: no messages flushed                       95   96
+   rtems_message_queue_flush: messages flushed                         110  110
+   rtems_message_queue_delete                                         1044 1111
+
+10 rtems_message_queue_receive: not available -- NO_WAIT               132  131
+   rtems_message_queue_receive: not available -- caller blocks         884  892
+
+11 rtems_message_queue_send: task readied -- preempts caller           397  817 
+
+12 rtems_message_queue_send: task readied -- returns to caller         397  397
+
+13 rtems_message_queue_urgent: task readied -- preempts caller         816  817
+
+14 rtems_message_queue_urgent: task readied -- returns to caller       397  398
+
+15 rtems_event_receive: obtain current events                            5    5
+   rtems_event_receive: not available -- NO_WAIT                        99   99
+   rtems_event_receive: not available -- caller blocks                 689  689
+   rtems_event_send: no task readied                                   123  123
+   rtems_event_receive: available                                      326  349
+   rtems_event_send: task readied -- returns to caller                 333  429
+
+16 rtems_event_send: task readied -- preempts caller                   843  838
+
+17 rtems_task_set_priority: preempts caller                           1002  991
+
+18 rtems_task_delete: calling task                                    1171 1157
+
+19 rtems_signal_catch                                                    0 1306
+   rtems_signal_send: returns to caller                                  0 1019
+   rtems_signal_send: signal to self                                     0  496
+   exit ASR overhead: returns to calling task                            0  120
+   exit ASR overhead: returns to preempting task                         0   73
+
+20 rtems_partition_create                                             1293 1306
+   rtems_region_create                                                1010 1019
+   rtems_partition_get_buffer: available                               481  496
+   rtems_partition_get_buffer: not available                           120  120
+   rtems_partition_return_buffer                                       587  460
+   rtems_partition_delete                                              379  320
+   rtems_region_get_segment: available                                 179  179
+   rtems_region_get_segment: not available -- NO_WAIT                  349  293
+   rtems_region_return_segment: no waiting tasks                       335  322
+   rtems_region_get_segment: not available -- caller blocks           1603 1496
+   rtems_region_return_segment: task readied -- preempts caller       1616 1533
+   rtems_region_return_segment: task readied -- returns to caller      940  939
+   rtems_region_delete                                                 301  348
+   rtems_io_initialize                                                   9   10
+   rtems_io_open                                                         6    6
+   rtems_io_close                                                        6    6
+   rtems_io_read                                                         6    6
+   rtems_io_write                                                        6    5
+   rtems_io_control                                                      6    6
+
+21 rtems_task_ident                                                   1057 1058
+   rtems_message_queue_ident                                           963  963
+   rtems_semaphore_ident                                              1137 1136
+   rtems_partition_ident                                               962  961
+   rtems_region_ident                                                  923  924
+   rtems_port_ident                                                    918  917
+   rtems_timer_ident                                                   942  941
+   rtems_rate_monotonic_ident                                          924  925
+
+22 rtems_message_queue_broadcast: task readied -- returns to caller   1084 1095
+   rtems_message_queue_broadcast: no waiting tasks                     147  148
+   rtems_message_queue_broadcast: task readied -- preempts caller     1305 1268
+
+23 rtems_timer_create                                                  202  201
+   rtems_timer_fire_after: inactive                                    261  261
+   rtems_timer_fire_after: active                                      271  269
+   rtems_timer_cancel: active                                          142  141
+   rtems_timer_cancel: inactive                                        122  124
+   rtems_timer_reset: inactive                                         222  222
+   rtems_timer_reset: active                                           246  245
+   rtems_timer_fire_when: inactive                                     312  311
+   rtems_timer_fire_when: active                                       358  358
+   rtems_timer_delete: active                                          263  263
+   rtems_timer_delete: inactive                                        247  247
+   rtems_task_wake_when                                                833  831
+
+24 rtems_task_wake_after: yield -- returns to caller                    99   98
+   rtems_task_wake_after: yields -- preempts caller                    479  478
+
+25 rtems_clock_tick                                                    313  318
+
+26 _ISR_Disable                                                         64   57
+   _ISR_Flash                                                           51   36
+   _ISR_Enable                                                          31   18
+   _Thread_Disable_dispatch                                             53   37
+   _Thread_Enable_dispatch                                             260  233
+   _Thread_Set_state                                                   446  463
+   _Thread_Disptach (NO FP)                                            839  801
+   context switch: no floating point contexts                          673  653
+   context switch: self                                                156  162
+   context switch: to another task                                      84   70
+   context switch: restore 1st FP task                                1030 1013
+   fp context switch: save idle, restore idle                          969  948
+   fp context switch: save idle, restore initialized                   275  267
+   fp context switch: save initialized, restore initialized            319  292
+   _Thread_Resume                                                      512  480
+   _Thread_Unblock                                                     121  139
+   _Thread_Ready                                                       199  203
+   _Thread_Get                                                          27   27
+   _Semaphore_Get                                                       20   21
+   _Thread_Get: invalid id                                               5    5
+
+27 interrupt entry overhead: returns to interrupted task                 0    0
+   interrupt exit overhead: returns to interrupted task                 27   41
+   interrupt entry overhead: returns to nested interrupt                 0    0
+   interrupt exit overhead: returns to nested interrupt                  0    0
+   interrupt entry overhead: returns to preempting task                  0    0
+   interrupt exit overhead: returns to preempting task                   0    0
+
+28 rtems_port_create                                                   574  560
+   rtems_port_external_to_internal                                      87   87
+   rtems_port_internal_to_external                                      86   86
+   rtems_port_delete                                                   395  353
+
+29 rtems_rate_monotonic_create                                         621  633
+   rtems_rate_monotonic_period: initiate period -- returns to caller   773  694
+   rtems_rate_monotonic_period: obtain status                          295  284
+   rtems_rate_monotonic_cancel                                         408  451
+   rtems_rate_monotonic_delete: inactive                               453  471
+   rtems_rate_monotonic_delete: active                                 332  336
+   rtems_rate_monotonic_period: conclude periods -- caller blocks      664  686
diff --git a/c/src/lib/libbsp/mips64orion/p4000/README b/c/src/lib/libbsp/mips64orion/p4000/README
new file mode 100644
index 0000000000..31152f15ec
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/README
@@ -0,0 +1,47 @@
+#
+#  README,v 1.2 1995/05/31 16:56:03 joel Exp
+#
+# @(#)README        08/20/96     1.2
+#
+
+BSP NAME:           p4000
+BOARD:              Algorithmics P4000 SBC
+BUS:                N/A
+CPU FAMILY:         mips
+CPU:                IDT 4650 
+COPROCESSORS:       N/A
+MODE:               32 bit mode
+
+DEBUG MONITOR:      IDT/SIM
+
+PERIPHERALS
+===========
+TIMERS:             4650 internal
+  RESOLUTION:         half of internal clock frequency
+SERIAL PORTS:       IDT/SIM controlled
+REAL-TIME CLOCK:    none
+DMA:                none
+VIDEO:              none
+SCSI:               none
+NETWORKING:         none
+
+DRIVER INFORMATION
+==================
+CLOCK DRIVER:       4650 internal
+IOSUPP DRIVER:      N/A
+SHMSUPP:            N/A 
+TIMER DRIVER:       4650 internal
+TTY DRIVER:         uses IDT/SIM
+
+STDIO
+=====
+PORT:               Console port 0
+ELECTRICAL:         RS-232
+BAUD:               9600
+BITS PER CHARACTER: 8
+PARITY:             None
+STOP BITS:          1
+
+NOTES
+=====
+
diff --git a/c/src/lib/libbsp/mips64orion/p4000/console/console.c b/c/src/lib/libbsp/mips64orion/p4000/console/console.c
new file mode 100644
index 0000000000..cc52dc3c7c
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/console/console.c
@@ -0,0 +1,270 @@
+/*
+ *  This file contains the IDT 4650 console IO package.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/console/console.c:
+ *
+ *  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.
+ *
+ *  console.c,v 1.4 1995/12/05 19:23:02 joel Exp
+ */
+
+
+#ifndef lint
+static char _sccsid[] = "@(#)console.c 08/20/96     1.6\n";
+#endif
+
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <ctype.h>
+
+char idtsim_getchar( void );
+void idtsim_putchar( char c );
+void mips_leddisplay( char a, char b, char c, char d );
+
+
+/*  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;
+ 
+  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
+)
+{
+  *ch = '\0';   /* return NULL for no particular reason */
+  return(TRUE);
+}
+
+/*  inbyte
+ *
+ *  This routine reads a character from the SOURCE.
+ *
+ *  Input parameters: NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  Return values:
+ *    character read from SOURCE
+ */
+
+char inbyte( void )
+{
+  /*
+   *  If polling, wait until a character is available.
+   */
+
+   return idtsim_getchar();
+}
+
+/*  outbyte
+ *
+ *  This routine transmits a character out the SOURCE.  It may support
+ *  XON/XOFF flow control.
+ *
+ *  Input parameters:
+ *    ch  - character to be transmitted
+ *
+ *  Output parameters:  NONE
+ */
+
+void outbyte(
+  char ch
+)
+{
+#define NUM_LEDS 4
+   static unsigned int cur_led = 0;
+   static unsigned char led_chars[NUM_LEDS];
+
+  /*
+   *  If polling, wait for the transmitter to be ready.
+   *  Check for flow control requests and process.
+   *  Then output the character.
+   */
+
+  idtsim_putchar( ch );
+
+  /* print out first four alpha numeric characters in a line */
+  if ( ch == '\n' )
+  {
+    mips_leddisplay( led_chars[0], led_chars[1], led_chars[2], led_chars[3] );
+    cur_led = 0;
+  }
+  else if ( isalnum( ch ) && cur_led < NUM_LEDS )
+  {
+    led_chars[cur_led++] = ch;
+  }
+
+}
+
+
+static int console_fd = -1;
+
+/*
+ *  Open entry point
+ */
+
+rtems_device_driver console_open(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+#if 0
+  int console_fd = open("tty0", 2); /* open for read/write */
+#endif
+  return RTEMS_SUCCESSFUL;
+}
+ 
+/*
+ *  Close entry point
+ */
+
+rtems_device_driver console_close(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+#if 0
+  if ( console_fd )
+    close( console_fd );
+#endif
+  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/mips64orion/p4000/console/led.S b/c/src/lib/libbsp/mips64orion/p4000/console/led.S
new file mode 100644
index 0000000000..b9b7b7e294
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/console/led.S
@@ -0,0 +1,20 @@
+
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtmon.h>
+#include <rtems/score/idtcpu.h>
+
+
+FRAME(mips_leddisplay,sp,0,ra)
+	j ra
+	nop
+ENDFRAME(mips_leddisplay)
+
+FRAME(sbddisplay,sp,0,ra)
+	j	ra
+ENDFRAME(sbddisplay)
+
+
+FRAME(sbdblank,sp,0,ra)
+	j	ra
+ENDFRAME(sbdblank)
+
diff --git a/c/src/lib/libbsp/mips64orion/p4000/include/bsp.h b/c/src/lib/libbsp/mips64orion/p4000/include/bsp.h
new file mode 100644
index 0000000000..1a9f6a5653
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/include/bsp.h
@@ -0,0 +1,120 @@
+/*  bsp.h
+ *
+ *  This include file contains all board IO definitions.
+ *
+ *  XXX : put yours in here
+ *
+ *  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.
+ *
+ *  bsp.h,v 1.4 1995/09/11 19:29:04 joel Exp
+ */
+/* @(#)bsp.h       03/15/96     1.1 */
+
+#ifndef __NO_BSP_h
+#define __NO_BSP_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems.h>
+#include <console.h>
+#include <clockdrv.h>
+
+extern void WriteDisplay( char * string );
+
+/*
+ *  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 */
+
+/*
+ *  Stuff for Time Test 27
+ */
+
+#define MUST_WAIT_FOR_INTERRUPT 0
+
+#define Install_tm27_vector( handler ) set_vector( (handler), 0, 1 )
+
+#define Cause_tm27_intr()
+
+#define Clear_tm27_intr()
+
+#define Lower_tm27_intr()
+
+extern unsigned32 mips_get_timer( void );
+
+#define CPU_CLOCK_RATE_MHZ     (50)
+#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ ) /* equivalent to CPU clock speed in MHz */
+
+/*
+ *  Simple spin delay in microsecond units for device drivers.
+ *  This is very dependent on the clock speed of the target.
+ */
+
+#define delay( microseconds ) \
+  { \
+     unsigned32 _end_clock = mips_get_timer() + microseconds * CLOCKS_PER_MICROSECOND; \
+     _end_clock %= 0x100000000;  /* make sure result is 32 bits */ \
+     \
+     /* handle timer overflow, if necessary */ \
+     while ( _end_clock < mips_get_timer() );  \
+     \
+     while ( _end_clock > mips_get_timer() ); \
+  }
+
+/* Constants */
+
+#define RAM_START 0
+#define RAM_END   0x100000
+
+/* miscellaneous stuff assumed to exist */
+
+extern rtems_configuration_table BSP_Configuration;
+
+/*
+ *  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 );
+
+mips_isr_entry set_vector(                    /* returns old vector */
+  rtems_isr_entry     handler,                  /* isr routine        */
+  rtems_vector_number vector,                   /* vector number      */
+  int                 type                      /* RTEMS or RAW intr  */
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */
diff --git a/c/src/lib/libbsp/mips64orion/p4000/include/coverhd.h b/c/src/lib/libbsp/mips64orion/p4000/include/coverhd.h
new file mode 100644
index 0000000000..716faef06b
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/include/coverhd.h
@@ -0,0 +1,116 @@
+/*  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.
+ *
+ *  coverhd.h,v 1.2 1995/05/31 16:56:15 joel Exp
+ */
+/* @(#)coverhd.h       04/08/96     1.3 */
+
+#ifndef __COVERHD_h
+#define __COVERHD_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CALLING_OVERHEAD_INITIALIZE_EXECUTIVE      5
+#define CALLING_OVERHEAD_SHUTDOWN_EXECUTIVE        4
+#define CALLING_OVERHEAD_TASK_CREATE               6
+#define CALLING_OVERHEAD_TASK_IDENT                4
+#define CALLING_OVERHEAD_TASK_START                5
+#define CALLING_OVERHEAD_TASK_RESTART              4
+#define CALLING_OVERHEAD_TASK_DELETE               4
+#define CALLING_OVERHEAD_TASK_SUSPEND              4
+#define CALLING_OVERHEAD_TASK_RESUME               4
+#define CALLING_OVERHEAD_TASK_SET_PRIORITY         5
+#define CALLING_OVERHEAD_TASK_MODE                 4
+#define CALLING_OVERHEAD_TASK_GET_NOTE             5
+#define CALLING_OVERHEAD_TASK_SET_NOTE             5
+#define CALLING_OVERHEAD_TASK_WAKE_WHEN            9
+#define CALLING_OVERHEAD_TASK_WAKE_AFTER           4
+#define CALLING_OVERHEAD_INTERRUPT_CATCH           5
+#define CALLING_OVERHEAD_CLOCK_GET                 9
+#define CALLING_OVERHEAD_CLOCK_SET                 8
+#define CALLING_OVERHEAD_CLOCK_TICK                3
+
+#define CALLING_OVERHEAD_TIMER_CREATE              4
+#define CALLING_OVERHEAD_TIMER_IDENT               4
+#define CALLING_OVERHEAD_TIMER_DELETE              4
+#define CALLING_OVERHEAD_TIMER_FIRE_AFTER          6
+#define CALLING_OVERHEAD_TIMER_FIRE_WHEN           10
+#define CALLING_OVERHEAD_TIMER_RESET               4
+#define CALLING_OVERHEAD_TIMER_CANCEL              4
+#define CALLING_OVERHEAD_SEMAPHORE_CREATE          5
+#define CALLING_OVERHEAD_SEMAPHORE_IDENT           4
+#define CALLING_OVERHEAD_SEMAPHORE_DELETE          4
+#define CALLING_OVERHEAD_SEMAPHORE_OBTAIN          5
+#define CALLING_OVERHEAD_SEMAPHORE_RELEASE         4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_CREATE      5
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_IDENT       4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_DELETE      4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_SEND        4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_URGENT      4
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_BROADCAST   5
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_RECEIVE     5
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_FLUSH       4
+
+#define CALLING_OVERHEAD_EVENT_SEND                4
+#define CALLING_OVERHEAD_EVENT_RECEIVE             5
+#define CALLING_OVERHEAD_SIGNAL_CATCH              5
+#define CALLING_OVERHEAD_SIGNAL_SEND               4
+#define CALLING_OVERHEAD_PARTITION_CREATE          6
+#define CALLING_OVERHEAD_PARTITION_IDENT           4
+#define CALLING_OVERHEAD_PARTITION_DELETE          4
+#define CALLING_OVERHEAD_PARTITION_GET_BUFFER      4
+#define CALLING_OVERHEAD_PARTITION_RETURN_BUFFER   4
+#define CALLING_OVERHEAD_REGION_CREATE             6
+#define CALLING_OVERHEAD_REGION_IDENT              4
+#define CALLING_OVERHEAD_REGION_DELETE             4
+#define CALLING_OVERHEAD_REGION_GET_SEGMENT        5
+#define CALLING_OVERHEAD_REGION_RETURN_SEGMENT     4
+#define CALLING_OVERHEAD_PORT_CREATE               6
+#define CALLING_OVERHEAD_PORT_IDENT                4
+#define CALLING_OVERHEAD_PORT_DELETE               4
+#define CALLING_OVERHEAD_PORT_EXTERNAL_TO_INTERNAL 4
+#define CALLING_OVERHEAD_PORT_INTERNAL_TO_EXTERNAL 4
+
+#define CALLING_OVERHEAD_IO_INITIALIZE             5
+#define CALLING_OVERHEAD_IO_OPEN                   5
+#define CALLING_OVERHEAD_IO_CLOSE                  5
+#define CALLING_OVERHEAD_IO_READ                   5
+#define CALLING_OVERHEAD_IO_WRITE                  5
+#define CALLING_OVERHEAD_IO_CONTROL                5
+#define CALLING_OVERHEAD_FATAL_ERROR_OCCURRED      4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_CREATE     4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_IDENT      4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_DELETE     4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_CANCEL     4
+#define CALLING_OVERHEAD_RATE_MONOTONIC_PERIOD     4
+#define CALLING_OVERHEAD_MULTIPROCESSING_ANNOUNCE  3
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */
diff --git a/c/src/lib/libbsp/mips64orion/p4000/liblnk/lnklib.S b/c/src/lib/libbsp/mips64orion/p4000/liblnk/lnklib.S
new file mode 100644
index 0000000000..fb8f28edbc
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/liblnk/lnklib.S
@@ -0,0 +1,58 @@
+#include "iregdef.h"
+#include "idtcpu.h"
+
+#define FRAME(name,frm_reg,offset,ret_reg)      \
+        .globl  name;                           \
+        .ent    name;                           \
+name:;                                          \
+        .frame  frm_reg,offset,ret_reg
+
+#define ENDFRAME(name)                          \
+        .end name
+
+#define PROM_LINK(name,entry)           \
+        .globl  name;                   \
+        .ent    name;                   \
+name:   la      $2,+entry;              \
+        j       $2;                     \
+        .end name
+
+#define	PROM_ENTRY(x)	(0xbfc00000+((x)*8))
+
+#define PROM_RESET	PROM_ENTRY(0)
+#define PROM_NOT_IMP	PROM_ENTRY(1)
+#define PROM_RESTART	PROM_ENTRY(2)
+#define PROM_REINIT	PROM_ENTRY(3)
+#define	PROM_GETCHAR	PROM_ENTRY(11)
+#define	PROM_PUTCHAR	PROM_ENTRY(12)
+#define	PROM_SHOWCHAR	PROM_ENTRY(13)
+#define	PROM_PRINTF	PROM_ENTRY(16)
+#define	PROM_RETURN	PROM_ENTRY(17)
+
+#define	PROM_RGETS	PROM_ENTRY(25)
+#define PROM_FLUSHCACHE	PROM_ENTRY(28)
+#define PROM_CLEARCACHE	PROM_ENTRY(29)
+#define PROM_SETJMP	PROM_ENTRY(30)
+#define PROM_LONGJMP	PROM_ENTRY(31)
+
+	.text
+
+PROM_LINK(idtsim_putchar, PROM_PUTCHAR)
+PROM_LINK(idtsim_getchar, PROM_GETCHAR)
+PROM_LINK(idtsim_showchar, PROM_SHOWCHAR)
+PROM_LINK(idtsim__exit, PROM_RETURN)
+PROM_LINK(idtsim_reinit, PROM_REINIT)
+PROM_LINK(idtsim_restart, PROM_RESTART)
+PROM_LINK(idtsim_reset, PROM_RESET)
+PROM_LINK(idtsim_promexit, PROM_RETURN)
+PROM_LINK(idtsim_setjmp, PROM_SETJMP)
+PROM_LINK(idtsim_longjmp, PROM_LONGJMP)
+
+FRAME(idtsim_init_sbrk,sp,0,ra)
+	j	ra
+ENDFRAME(idtsim_init_sbrk)
+
+FRAME(idtsim_init_file,sp,0,ra)
+	j	ra
+ENDFRAME(idtsim_init_file)
+
diff --git a/c/src/lib/libbsp/mips64orion/p4000/start/start.S b/c/src/lib/libbsp/mips64orion/p4000/start/start.S
new file mode 100644
index 0000000000..bbedf0c5dd
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/start/start.S
@@ -0,0 +1,298 @@
+/*
+
+Based upon IDT provided code with the following release:
+
+This source code has been made available to you by IDT on an AS-IS
+basis. Anyone receiving this source is licensed under IDT copyrights
+to use it in any way he or she deems fit, including copying it,
+modifying it, compiling it, and redistributing it either with or
+without modifications.  No license under IDT patents or patent
+applications is to be implied by the copyright license.
+
+Any user of this software should understand that IDT cannot provide
+technical support for this software and will not be responsible for
+any consequences resulting from the use of this software.
+
+Any person who transfers this source code or any derivative work must
+include the IDT copyright notice, this paragraph, and the preceeding
+two paragraphs in the transferred software.
+
+COPYRIGHT IDT CORPORATION 1996
+LICENSED MATERIAL - PROGRAM PROPERTY OF IDT
+
+*/ 
+
+/*************************************************************************
+**
+** Copyright 1991-95 Integrated Device Technology, Inc.
+**	All Rights Reserved
+**
+** idt_csu.S -- IDT stand alone startup code
+**
+**************************************************************************/
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtcpu.h>
+#include <rtems/score/idtmon.h>
+
+
+.extern _fbss,4		  /* this is defined by the linker */
+.extern end,4		  /* this is defined by the linker */
+
+.lcomm sim_mem_cfg_struct,12
+
+	.text
+
+
+#define TMP_STKSIZE  1024 
+
+/**************************************************************************
+**
+**  start - Typicl standalone start up code required for R3000/R4000
+**
+**
+**	1)  Initialize the STATUS Register
+**		a) Clear parity error bit
+**		b) Set co_processor 1 usable bit ON
+**		c) Clear all IntMask Enables
+**		d) Set kernel/disabled mode
+**	2)  Initialize Cause Register
+**		a)  clear software interrupt bits       
+**	3)  Determine FPU installed or not
+**		if not, clear CoProcessor 1 usable bit
+**	4)  Clear bss area
+**	5)  MUST allocate temporary stack until memory size determined
+**	    It MUST be uncached to prevent overwriting when caches are cleared
+**	6)  Install exception handlers
+**	7)  Determine memory and cache sizes
+**	8)  Establish permanent stack (cached or uncached as defined by bss)
+**	9)  Flush Instruction and Data caches
+** 	10)  If there is a Translation Lookaside Buffer, Clear the TLB
+** 	11)  Execute initialization code if the IDT/c library is to be used
+** 
+** 	12)  Jump to user's "main()"
+** 	13)  Jump to promexit
+**
+**	IDT/C 5.x defines _R3000, IDT/C 6.x defines _R4000 internally. 
+**	This is used to mark code specific to R3xxx or R4xxx processors.
+**	IDT/C 6.x defines __mips to be the ISA level for which we're 
+**	generating code. This is used to make sure the stack etc. is 
+**	double word aligned, when using -mips3 (default) or -mips2, 
+**	when compiling with IDT/C6.x
+**
+***************************************************************************/
+
+FRAME(start,sp,0,ra)
+
+	.set	noreorder
+#ifdef _R3000
+	li	v0,SR_PE|SR_CU1        /* reset parity error and set */
+					/* cp1 usable */
+#endif
+#ifdef _R4000
+#if __mips==3 || defined(R4650)
+	li	v0,SR_CU1|SR_DE|SR_FR 	/* initally clear ERL, enable FPA 64bit regs*/
+	                                /* 4650: Need fr to be set anyway */
+#else
+	li	v0,SR_CU1|SR_DE 	/* initally clear ERL, enable FPA 32bit regs*/
+#endif mips3
+#endif
+
+	mtc0	v0,C0_SR		/* clr IntMsks/ kernel/disabled mode */
+	nop
+	mtc0	zero,C0_CAUSE		/* clear software interrupts */
+	nop
+
+#ifdef _R4000
+	li	v0,CFG_C_NONCOHERENT	# initialise default cache mode
+	mtc0	v0,C0_CONFIG
+#endif
+
+/*
+**	check to see if an fpu is really plugged in 
+*/
+	li	t3,0xaaaa5555		/*  put a's and 5's in t3	*/
+	mtc1	t3,fp0			/* try to write them into fp0   */	
+	mtc1	zero,fp1		/* try to write zero in fp	*/
+	mfc1	t0,fp0
+	mfc1	t1,fp1
+	nop
+	bne	t0,t3,1f		/* branch if no match  */
+	nop
+	bne	t1,zero,1f		/* double check for positive id   */
+	nop
+	/* We have a FPU. clear fcsr */
+	ctc1	zero, fcr31
+	j	2f			/* status register already correct  */
+	nop
+1:
+#ifdef _R3000
+	li	v0, SR_PE		/* reset parity error/NO cp1 usable */
+#endif
+
+#ifdef _R4000
+        li      v0,SR_DE 		/* clear ERL and disable FPA */
+#endif
+
+	mtc0	v0, C0_SR		/* reset status register */
+2:
+	la  	gp, _gp			
+
+	la	v0,_fbss 		/* clear bss before using it */
+	la	v1,end 			/* end of bss */
+3:	sw	zero,0(v0)
+	bltu	v0,v1,3b
+	add	v0,4 
+
+
+/************************************************************************
+**
+** 	Temporary Stack - needed to  handle stack saves until
+**			  memory size is determined and permanent stack set
+**
+**			  MUST be uncached to avoid confusion at cache
+**			       switching during memory sizing
+**
+*************************************************************************/
+#if __mips==3
+	/* For MIPS 3, we need to be sure that the stack is aligned on a
+	 * double word boundary. 
+	 */
+	andi	t0, v0, 0x7
+	beqz	t0, 11f   /* Last three bits Zero, already aligned */
+	nop
+	add	v0, 4
+11:
+#endif
+
+	or	v0, K1BASE		/* switch to uncached */
+	add	v1, v0, TMP_STKSIZE 	/* end of bss + length of tmp stack */
+	sub	v1, v1, (4*4)		/* overhead */
+	move	sp, v1			/* set sp to top of stack */
+4:	sw	zero, 0(v0)  
+	bltu	v0, v1, 4b		/* clear out temp stack */
+	add	v0, 4 
+	
+	jal	init_exc_vecs		/* install exception handlers */ 
+	nop				/* MUST do before memory probes */
+
+	la	v0, 5f
+	li	v1, K1BASE		/* force into uncached space */
+	or	v0, v1			/* during memory/cache probes */
+	j	v0
+	nop
+5:
+	la	a0, sim_mem_cfg_struct
+	jal	sim_mem_cfg		/* Make SIM call to get mem size */
+	nop
+	la	a0, sim_mem_cfg_struct
+	lw	a0, 0(a0)		/* Get memory size from struct */
+#ifdef _R3000
+	jal	config_Icache
+	nop
+	jal	config_Dcache		/* determine size of D & I caches */
+	nop	
+#endif
+#ifdef _R4000
+	jal	config_cache		/* determine size of D & I caches */
+	nop
+#endif
+
+	move	v0, a0			/* mem_size */
+
+#if __mips==3
+	/* For MIPS 3, we need to be sure that the stack (and hence v0
+	 * here) is aligned on a double word boundary. 
+	 */
+	andi	t0, v0, 0x7
+	beqz	t0, 12f   /* Last three bits Zero, already aligned */
+	nop
+	subu	v0, 4	/* mem_size was not aligned on doubleword bdry????*/
+12:
+#endif
+
+
+
+/**************************************************************************
+**
+**  Permanent Stack - now know top of memory, put permanent stack there	
+**
+***************************************************************************/ 
+
+	la	t2, _fbss		/* cache mode as linked */
+	and	t2, 0xF0000000		/* isolate segment */
+	la	t1, 6f
+	j	t1			/* back to original cache mode */
+	nop
+6:
+	or 	v0, t2			/* stack back to original cache mode */
+	addiu   v0,v0,-16		/* overhead */
+	move	sp, v0			/* now replace count w top of memory */
+	move	v1, v0
+	subu	v1, P_STACKSIZE 	/* clear requested stack size */
+
+7:	sw	zero, 0(v1)		/* clear P_STACKSIZE  stack */ 
+	bltu	v1,v0,7b
+	add	v1, 4 
+	.set	reorder
+
+#ifdef _R3000 
+	jal	flush_Icache	
+	jal	flush_Dcache		/* flush Data & Instruction caches */
+#endif
+#ifdef _R4000 
+	jal	flush_cache_nowrite	/* flush Data & Instruction caches */
+#endif
+
+
+
+/**************************************************************************
+**
+**	If this chip supports a Translation Lookaside Buffer, clear it
+**
+***************************************************************************/ 
+
+	.set	noreorder
+	mfc0	t1,  C0_SR		/* look at Status Register */
+	nop
+	.set 	reorder
+#ifdef _R3000
+	li	t2, SR_TS		/* TLB Shutdown bit */
+	and 	t1,t2      		/* TLB Shutdown if 1 */
+	bnez	t1, 8f			/* skip clearing if no TLB */	
+#endif
+
+#ifndef R4650
+	jal	init_tlb		/* clear the tlb */
+#endif
+
+
+/************************************************************************
+**
+**  Initialization required if using IDT/c or libc.a, standard C Lib 
+**
+**  can SKIP if not necessary for application
+**
+************************************************************************/
+8:
+
+	jal	idtsim_init_sbrk
+	jal	idtsim_init_file
+/***********************  END I/O initialization **********************/
+
+
+	jal	main
+
+	jal	idtsim_promexit
+
+ENDFRAME(start)
+
+
+	.globl	sim_mem_cfg
+sim_mem_cfg:
+	.set noat
+	.set noreorder
+	li	AT, (0xbfc00000+((55)*8))
+	jr	AT
+	nop
+	.set at
+	.set reorder
diff --git a/c/src/lib/libbsp/mips64orion/p4000/startup/bspclean.c b/c/src/lib/libbsp/mips64orion/p4000/startup/bspclean.c
new file mode 100644
index 0000000000..ecaff11004
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/startup/bspclean.c
@@ -0,0 +1,30 @@
+/*  bsp_cleanup()
+ *
+ *  This routine normally is part of start.s and usually returns
+ *  control to a monitor.
+ *
+ *  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.
+ *
+ *  bspclean.c,v 1.2 1995/05/31 16:56:27 joel Exp
+ */
+#ifndef lint
+static char _sccsid[] = "@(#)bspclean.c 03/15/96     1.1\n";
+#endif
+
+
+#include <rtems.h>
+#include <bsp.h>
+
+void bsp_cleanup( void )
+{
+}
diff --git a/c/src/lib/libbsp/mips64orion/p4000/startup/ghlinkcmds b/c/src/lib/libbsp/mips64orion/p4000/startup/ghlinkcmds
new file mode 100644
index 0000000000..cf2a80bf8d
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/startup/ghlinkcmds
@@ -0,0 +1,15 @@
+-map
+-sec
+{
+  .text 0x80010000  :
+  .data  align(16)  :
+  .rodata :
+  .fini :
+#  .sdata :
+  .symtab :
+  .strtab :
+  .debug :
+#  .sbss :
+  .bss     align(8)  :
+  .init 0xbfc00000 :
+}
diff --git a/c/src/lib/libbsp/mips64orion/p4000/startup/idtmem.S b/c/src/lib/libbsp/mips64orion/p4000/startup/idtmem.S
new file mode 100644
index 0000000000..66c1a4ecbc
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/startup/idtmem.S
@@ -0,0 +1,938 @@
+/*
+
+Based upon IDT provided code with the following release:
+
+This source code has been made available to you by IDT on an AS-IS
+basis. Anyone receiving this source is licensed under IDT copyrights
+to use it in any way he or she deems fit, including copying it,
+modifying it, compiling it, and redistributing it either with or
+without modifications.  No license under IDT patents or patent
+applications is to be implied by the copyright license.
+
+Any user of this software should understand that IDT cannot provide
+technical support for this software and will not be responsible for
+any consequences resulting from the use of this software.
+
+Any person who transfers this source code or any derivative work must
+include the IDT copyright notice, this paragraph, and the preceeding
+two paragraphs in the transferred software.
+
+COPYRIGHT IDT CORPORATION 1996
+LICENSED MATERIAL - PROGRAM PROPERTY OF IDT
+
+*/
+
+/************************************************************************
+**
+**	idtmem.s - memory and cache functions
+**
+**	Copyright 1991 Integrated Device Technology, Inc.
+**	All Rights Reserved
+**
+**************************************************************************/
+
+/*
+ * 950313: Ketan fixed bugs in mfc0/mtc0 hazards, and removed hack 
+ * to set mem_size. 
+ */
+
+#include "iregdef.h"
+#include "idtcpu.h"  
+#include "idtmon.h"  
+#include "saunder.h"
+
+
+	.data
+mem_size:
+	.word	0	
+dcache_size:
+	.word 	0		
+icache_size:
+#if defined(CPU_R3000)
+	.word	MINCACHE	
+#endif
+#if defined(CPU_R4000)
+	.word	0
+#endif
+
+#if defined(CPU_R4000)
+	.data
+scache_size:
+	.word 	0
+icache_linesize:
+	.word	0
+dcache_linesize:
+	.word	0
+scache_linesize:
+	.word	0
+#endif
+
+
+		.text
+
+#if defined (CPU_R3000)
+#define CONFIGFRM ((2*4)+4)	
+
+/*************************************************************************
+**
+** Config_Dcache() -- determine size of Data cache 
+**
+**************************************************************************/
+
+FRAME(config_Dcache,sp, CONFIGFRM, ra)
+	.set	noreorder
+	subu	sp,CONFIGFRM
+	sw	ra,CONFIGFRM-4(sp)	/* save return address */
+	sw	s0,4*4(sp)		/* save s0 in first regsave slot */
+	mfc0	s0,C0_SR		/* save SR */
+	nop
+	mtc0	zero,C0_SR		/* disable interrupts */
+	.set	reorder
+	jal	_size_cache		/* returns Data cache size in v0 */
+	sw	v0, dcache_size		/* save it */
+	and 	s0, ~SR_PE		/* do not clear PE */
+	.set	noreorder
+	mtc0	s0,C0_SR		/* restore SR */
+	nop
+	.set	reorder
+	lw	s0, 4*4(sp)		/* restore s0 */
+	lw	ra,CONFIGFRM-4(sp)	/* restore ra */
+	addu	sp,CONFIGFRM		/* pop stack */
+	j	ra
+ENDFRAME(config_Dcache)
+ 
+
+/*************************************************************************
+**
+** Config_Icache() -- determine size of Instruction cache
+**		      MUST be run in uncached mode/handled in idt_csu.s
+**
+**************************************************************************/
+
+FRAME(config_Icache,sp, CONFIGFRM, ra)
+	.set	noreorder
+	subu	sp,CONFIGFRM
+	sw	ra,CONFIGFRM-4(sp)	/* save return address */
+	sw	s0,4*4(sp)		/* save s0 in first regsave slot */
+	mfc0	s0,C0_SR		/* save SR */
+	nop
+ 	mtc0	zero, C0_SR		/* disable interrupts */
+	li	v0,SR_SWC		/* swap caches/disable ints  */
+	mtc0	v0,C0_SR
+	nop
+	.set	reorder
+	jal	_size_cache		/* returns instruction cache size */
+	.set	noreorder
+	mtc0	zero,C0_SR		/* swap back caches */  
+	nop
+	and	s0,~SR_PE		/* do not inadvertantly clear PE */
+	mtc0	s0,C0_SR		/* restore SR */
+	nop
+	.set	reorder
+	sw	v0, icache_size		/* save it AFTER caches back */
+	lw	s0,4*4(sp)		/* restore s0 */
+	lw	ra,CONFIGFRM-4(sp)	/* restore ra */
+	addu	sp,CONFIGFRM		/* pop stack */
+	j	ra
+ENDFRAME(config_Icache)
+
+/************************************************************************
+**
+** _size_cache()
+** returns cache size in v0
+**
+************************************************************************/
+
+FRAME(_size_cache,sp,0,ra)
+	.set	noreorder
+	mfc0	t0,C0_SR		/* save current sr */
+	nop
+	and	t0,~SR_PE		/* do not inadvertently clear PE */
+	or	v0,t0,SR_ISC		/* isolate cache */
+	mtc0	v0,C0_SR
+	/*
+	 * First check if there is a cache there at all
+	 */
+	move	v0,zero
+	li	v1,0xa5a5a5a5		/* distinctive pattern */
+	sw	v1,K0BASE		/* try to write into cache */
+	lw	t1,K0BASE		/* try to read from cache */
+	nop
+	mfc0	t2,C0_SR
+	nop
+	.set	reorder
+	and	t2,SR_CM
+	bne	t2,zero,3f		/* cache miss, must be no cache */
+	bne	v1,t1,3f		/* data not equal -> no cache */
+	/*
+	 * Clear cache size boundries to known state.
+	 */
+	li	v0,MINCACHE
+1:
+	sw	zero,K0BASE(v0)
+	sll	v0,1
+	ble	v0,MAXCACHE,1b
+
+	li	v0,-1
+	sw	v0,K0BASE(zero)		/* store marker in cache */
+	li	v0,MINCACHE		/* MIN cache size */
+
+2:	lw	v1,K0BASE(v0)		/* Look for marker */
+	bne	v1,zero,3f		/* found marker */
+	sll	v0,1			/* cache size * 2 */
+	ble	v0,MAXCACHE,2b		/* keep looking */
+	move	v0,zero			/* must be no cache */
+	.set	noreorder
+3:	mtc0	t0,C0_SR		/* restore sr */
+	j	ra
+	nop
+ENDFRAME(_size_cache)
+	.set	reorder
+
+
+#define FLUSHFRM (2*4)
+
+/***************************************************************************
+**
+** flush_Dcache() -  flush entire Data cache
+**
+****************************************************************************/
+FRAME(flush_Dcache,sp,FLUSHFRM,ra)
+	lw      t2, dcache_size		
+	.set	noreorder
+	mfc0	t3,C0_SR		/* save SR */
+	nop
+	and	t3,~SR_PE		/* dont inadvertently clear PE */
+	beq	t2,zero,_Dflush_done	/* no D cache, get out! */
+	nop
+	li	v0, SR_ISC		/* isolate cache */
+	mtc0	v0, C0_SR
+	nop
+	.set	reorder
+	li	t0,K0BASE		/* set loop registers  */
+	or	t1,t0,t2
+
+2:	sb	zero,0(t0)
+	sb	zero,4(t0)
+	sb	zero,8(t0)
+	sb	zero,12(t0)
+	sb	zero,16(t0)
+	sb	zero,20(t0)
+	sb	zero,24(t0)
+	addu	t0,32
+	sb	zero,-4(t0)
+	bne	t0,t1,2b
+
+	.set	noreorder
+_Dflush_done:
+	mtc0	t3,C0_SR		/* restore Status Register */
+	.set	reorder
+	j	ra
+ENDFRAME(flush_Dcache)
+
+
+/***************************************************************************
+**
+** flush_Icache() -  flush entire Instruction cache
+**
+**	NOTE: Icache can only be flushed/cleared when uncached
+**	      Code forces into uncached memory regardless of calling mode
+**
+****************************************************************************/
+FRAME(flush_Icache,sp,FLUSHFRM,ra)
+	lw	t1,icache_size 
+	.set	noreorder
+	mfc0	t3,C0_SR		/* save SR */
+	nop
+	la	v0,1f
+	li	v1,K1BASE
+	or	v0,v1
+	j	v0			/* force into non-cached space */
+	nop
+1:
+	and	t3,~SR_PE		/* dont inadvertently clear PE */
+	beq	t1,zero,_Iflush_done	/* no i-cache get out */
+	nop
+	li	v0,SR_ISC|SR_SWC	/* disable intr, isolate and swap */
+	mtc0	v0,C0_SR
+	li	t0,K0BASE
+	.set	reorder
+	or	t1,t0,t1
+
+1:	sb	zero,0(t0)
+	sb	zero,4(t0)
+	sb	zero,8(t0)
+	sb	zero,12(t0)
+	sb	zero,16(t0)
+	sb	zero,20(t0)
+	sb	zero,24(t0)
+	addu	t0,32
+	sb	zero,-4(t0)
+	bne	t0,t1,1b
+	.set	noreorder
+_Iflush_done:
+	mtc0	t3,C0_SR		/* un-isolate, enable interrupts */
+	.set	reorder
+	j	ra
+ENDFRAME(flush_Icache)
+
+/**************************************************************************
+**
+** clear_Dcache(base_addr, byte_count) - flush portion of Data cache
+**
+**      a0 = base address of portion to be cleared
+**      a1 = byte count of length
+**
+***************************************************************************/
+FRAME(clear_Dcache,sp,0,ra)
+
+	lw  	t2, dcache_size		/* Data cache size */
+	.set	noreorder
+	mfc0	t3,C0_SR		/* save SR */
+	nop
+	and	t3,~SR_PE		/* dont inadvertently clear PE */
+	nop
+	nop
+	.set	reorder
+	/*
+	 * flush data cache
+	 */
+
+	.set	noreorder
+	nop
+	li	v0,SR_ISC		/* isolate data cache */
+	mtc0	v0,C0_SR
+	.set	reorder
+	bltu	t2,a1,1f		/* cache is smaller than region */
+	move	t2,a1
+1:	addu	t2,a0			/* ending address + 1 */
+	move	t0,a0
+
+1:	sb	zero,0(t0)
+	sb	zero,4(t0)
+	sb	zero,8(t0)
+	sb	zero,12(t0)
+	sb	zero,16(t0)
+	sb	zero,20(t0)
+	sb	zero,24(t0)
+	addu	t0,32
+	sb	zero,-4(t0)
+	bltu	t0,t2,1b
+
+	.set	noreorder
+	mtc0	t3,C0_SR		/* un-isolate, enable interrupts */
+	nop
+	.set	reorder
+	j	ra
+ENDFRAME(clear_Dcache)
+
+
+/**************************************************************************
+**
+** clear_Icache(base_addr, byte_count) - flush portion of Instruction cache
+**
+**      a0 = base address of portion to be cleared
+**      a1 = byte count of length
+**
+**	NOTE: Icache can only be flushed/cleared when uncached
+**	      Code forces into uncached memory regardless of calling mode
+**
+***************************************************************************/
+FRAME(clear_Icache,sp,0,ra)
+
+	lw      t1, icache_size		/* Instruction cache size */
+	/*
+	 * flush text cache
+	 */
+	.set	noreorder
+	mfc0	t3,C0_SR		/* save SR */
+	nop 
+	la	v0,1f
+	li	v1,K1BASE
+	or	v0,v1
+	j	v0			/* force into non-cached space */
+	nop
+1:
+	and	t3,~SR_PE		/* dont inadvertently clear PE */
+	nop
+	nop
+	li	v0,SR_ISC|SR_SWC	/* disable intr, isolate and swap */
+	mtc0	v0,C0_SR
+	.set	reorder
+	bltu	t1,a1,1f		/* cache is smaller than region */
+	move	t1,a1
+1:	addu	t1,a0			/* ending address + 1 */
+	move	t0,a0
+
+	sb	zero,0(t0)
+	sb	zero,4(t0)
+	sb	zero,8(t0)
+	sb	zero,12(t0)
+	sb	zero,16(t0)
+	sb	zero,20(t0)
+	sb	zero,24(t0)
+	addu	t0,32
+	sb	zero,-4(t0)
+	bltu	t0,t1,1b
+	.set	noreorder
+	mtc0	t3,C0_SR		/* un-isolate, enable interrupts */
+	nop
+	nop
+	nop				/* allow time for caches to swap */
+	.set	reorder
+	j	ra
+ENDFRAME(clear_Icache)
+
+
+/**************************************************************************
+**
+**  get_mem_conf - get memory configuration 
+**
+***************************************************************************/
+
+
+FRAME(get_mem_conf,sp,0,ra)
+
+	lw	t6, mem_size
+	sw	t6, 0(a0)
+	lw	t7, icache_size
+	sw	t7, 4(a0)
+	lw	t8, dcache_size
+	sw	t8, 8(a0) 
+	j	ra
+
+ENDFRAME(get_mem_conf)
+#endif /* defined CPU_R3000 */
+
+#if defined(CPU_R4000)
+#define LEAF(label)	FRAME(label,sp,0,ra)
+#define XLEAF(label) \
+	.globl label ; \
+label:
+#define END(label)	ENDFRAME(label)
+
+/*
+ * cacheop macro to automate cache operations
+ * first some helpers...
+ */
+#define _mincache(size, maxsize) \
+	bltu	size,maxsize,8f ;	\
+	move	size,maxsize ;		\
+8:
+
+#define _align(tmp, minaddr, maxaddr, linesize) \
+	subu	tmp,linesize,1 ;	\
+	not	tmp ;			\
+	and	minaddr,tmp ;		\
+	addu	maxaddr,-1 ;		\
+	and	maxaddr,tmp
+
+/* This is a bit of a hack really because it relies on minaddr=a0 */
+#define _doop1(op1) \
+	cache	op1,0(a0) 
+
+#define _doop2(op1, op2) \
+	cache	op1,0(a0) ;		\
+	cache	op2,0(a0) 
+
+/* specials for cache initialisation */
+#define _doop1lw1(op1) \
+	cache	op1,0(a0) ;		\
+	lw	zero,0(a0) ;		\
+	cache	op1,0(a0) 
+
+#define _doop121(op1,op2) \
+	cache	op1,0(a0) ;		\
+	nop;				\
+	cache	op2,0(a0) ;		\
+	nop;				\
+	cache	op1,0(a0) 
+
+#define _oploopn(minaddr, maxaddr, linesize, tag, ops) \
+	.set	noreorder ;		\
+7: 	_doop##tag##ops ;	 	\
+	bne     minaddr,maxaddr,7b ;	\
+	addu   	minaddr,linesize ;	\
+	.set	reorder
+
+/* finally the cache operation macros */
+#define icacheopn(kva, n, cache_size, cache_linesize, tag, ops) \
+	_mincache(n, cache_size);	\
+ 	blez	n,9f ;			\
+	addu	n,kva ;			\
+	_align(t1, kva, n, cache_linesize) ; \
+	_oploopn(kva, n, cache_linesize, tag, ops) ; \
+9:
+
+#define vcacheopn(kva, n, cache_size, cache_linesize, tag, ops) \
+ 	blez	n,9f ;			\
+	addu	n,kva ;			\
+	_align(t1, kva, n, cache_linesize) ; \
+	_oploopn(kva, n, cache_linesize, tag, ops) ; \
+9:
+
+#define icacheop(kva, n, cache_size, cache_linesize, op) \
+	icacheopn(kva, n, cache_size, cache_linesize, 1, (op))
+
+#define vcacheop(kva, n, cache_size, cache_linesize, op) \
+	vcacheopn(kva, n, cache_size, cache_linesize, 1, (op))
+
+	.text
+
+/*
+ * static void _size_cache()    R4000
+ * 
+ * Internal routine to determine cache sizes by looking at R4000 config
+ * register.  Sizes are returned in registers, as follows:
+ *	t2	icache size
+ *	t3	dcache size
+ *	t6	scache size
+ *	t4	icache line size
+ *	t5	dcache line size
+ *	t7	scache line size
+ */
+LEAF(_size_cache)
+	mfc0	t0,C0_CONFIG
+
+	and	t1,t0,CFG_ICMASK
+	srl	t1,CFG_ICSHIFT
+	li	t2,0x1000
+	sll	t2,t1
+
+	and	t1,t0,CFG_DCMASK
+	srl	t1,CFG_DCSHIFT
+	li	t3,0x1000
+	sll	t3,t1
+
+	li	t4,32
+	and	t1,t0,CFG_IB
+	bnez	t1,1f
+	li	t4,16
+1:	
+
+	li	t5,32
+	and	t1,t0,CFG_DB
+	bnez	t1,1f
+	li	t5,16
+1:	
+
+	move	t6,zero			# default to no scache
+	move	t7,zero			#
+
+	and	t1,t0,CFG_C_UNCACHED	# test config register
+	bnez	t1,1f			# no scache if uncached/non-coherent
+	
+	li	t6,0x100000		# assume 1Mb scache <<-NOTE
+	and	t1,t0,CFG_SBMASK
+	srl	t1,CFG_SBSHIFT
+	li	t7,16
+	sll	t7,t1
+1:	j	ra
+END(_size_cache)
+
+
+/*
+ * void config_cache()   R4000
+ * 
+ * Work out size of I, D & S caches, assuming they are already initialised.
+ */
+LEAF(config_cache)
+	lw	t0,icache_size
+	bgtz	t0,8f			# already known?
+	move	v0,ra
+	bal	_size_cache
+	move	ra,v0
+
+	sw	t2,icache_size
+	sw	t3,dcache_size
+	sw	t6,scache_size
+	sw	t4,icache_linesize
+	sw	t5,dcache_linesize
+	sw	t7,scache_linesize
+8:	j	ra
+END(config_cache)
+
+
+/*
+ * void _init_cache()   R4000
+ */
+LEAF(_init_cache)
+	/*
+ 	 * First work out the sizes
+	 */
+	move	v0,ra
+	bal	_size_cache
+	move	ra,v0
+	
+	/*
+	 * The caches may be in an indeterminate state,
+	 * so we force good parity into them by doing an
+	 * invalidate, load/fill, invalidate for each line.
+	 */
+
+	/* disable all i/u and cache exceptions */
+	mfc0	v0,C0_SR
+	and	v1,v0,~SR_IE
+	or	v1,SR_DE
+	mtc0	v1,C0_SR
+
+	mtc0	zero,C0_TAGLO
+	mtc0	zero,C0_TAGHI
+
+	/* assume bottom of RAM will generate good parity for the cache */
+	li	a0,PHYS_TO_K0(0)
+	move	a2,t2		# icache_size
+	move	a3,t4		# icache_linesize
+	move	a1,a2
+	icacheopn(a0,a1,a2,a3,121,(Index_Store_Tag_I,Fill_I))
+
+	li	a0,PHYS_TO_K0(0)
+	move	a2,t3		# dcache_size
+	move	a3,t5		# dcache_linesize
+	move	a1,a2
+	icacheopn(a0,a1,a2,a3,1lw1,(Index_Store_Tag_D))
+
+	/* assume unified I & D in scache <<-NOTE */
+	blez	t6,1f
+	li	a0,PHYS_TO_K0(0)
+	move	a2,t6
+	move	a3,t7
+	move	a1,a2
+	icacheopn(a0,a1,a2,a3,1lw1,(Index_Store_Tag_SD))
+
+1:	mtc0	v0,C0_SR
+	j	ra
+END(_init_cache)
+	
+
+/*
+ * void flush_cache (void)   R4000
+ *
+ * Flush and invalidate all caches
+ */
+LEAF(flush_cache)
+	/* secondary cacheops do all the work if present */
+	lw	a2,scache_size
+	blez	a2,1f
+	lw	a3,scache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_SD)
+	b	2f
+
+1:	
+	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Invalidate_I)
+
+	lw	a2,dcache_size
+	lw	a3,dcache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_D)
+
+2:	j	ra
+END(flush_cache)
+	
+/*
+ * void flush_cache_nowrite (void)   R4000
+ *
+ * Invalidate all caches
+ */
+LEAF(flush_cache_nowrite)
+	mfc0	v0,C0_SR
+	and	v1,v0,~SR_IE
+	mtc0	v1,C0_SR
+
+	mtc0	zero,C0_TAGLO
+	mtc0	zero,C0_TAGHI
+
+	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Invalidate_I)
+
+	lw	a2,dcache_size
+	lw	a3,dcache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
+
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+	li	a0,PHYS_TO_K0(0)
+	move	a1,a2
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_SD)
+
+2:	mtc0	v0,C0_SR
+	j	ra
+END(flush_cache_nowrite)
+	
+/*
+ * void clean_cache (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate address range in all caches
+ */
+LEAF(clean_cache)
+XLEAF(clear_cache)
+
+	/* secondary cacheops do all the work (if fitted) */
+	lw	a2,scache_size
+	blez	a2,1f
+	lw	a3,scache_linesize
+	vcacheop(a0,a1,a2,a3,Hit_Writeback_Inv_SD)
+	b	2f
+
+1:	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+	/* save kva & n for subsequent loop */
+	move	t8,a0
+	move	t9,a1
+	vcacheop(a0,a1,a2,a3,Hit_Invalidate_I)
+
+	lw	a2,dcache_size
+	lw	a3,dcache_linesize
+	/* restore kva & n */
+	move	a0,t8
+	move	a1,t9
+	vcacheop(a0,a1,a2,a3,Hit_Writeback_Inv_D)
+
+2:	j	ra
+END(clean_cache)
+	
+/*
+ * void clean_dcache (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate address range in primary data cache
+ */
+LEAF(clean_dcache)
+	lw	a2,dcache_size
+	blez	a2,2f
+	lw	a3,dcache_linesize
+
+	vcacheop(a0,a1,a2,a3,Hit_Writeback_Inv_D)
+
+2:	j	ra
+END(clean_dcache)
+	
+/*
+ * void clean_dcache_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate indexed range in primary data cache
+ */
+LEAF(clean_dcache_indexed)
+	lw	a2,dcache_size
+	blez	a2,2f
+	lw	a3,dcache_linesize
+
+#ifdef CPU_ORION
+	srl	a2,1			# do one set (half cache) at a time
+	move	t8,a0			# save kva & n
+	move	t9,a1
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_D)
+
+	addu	a0,t8,a2		# do next set
+	move	a1,t9			# restore n
+#endif
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_D)
+
+2:	j	ra
+END(clean_dcache_indexed)
+	
+/*
+ * void clean_dcache_nowrite (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate an address range in primary data cache
+ */
+LEAF(clean_dcache_nowrite)
+	lw	a2,dcache_size
+	blez	a2,2f
+	lw	a3,dcache_linesize
+
+	vcacheop(a0,a1,a2,a3,Hit_Invalidate_D)
+
+2:	j	ra
+END(clean_dcache_nowrite)
+	
+/*
+ * void clean_dcache_nowrite_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate indexed range in primary data cache
+ */
+LEAF(clean_dcache_nowrite_indexed)
+	mfc0	v0,C0_SR
+	and	v1,v0,~SR_IE
+	mtc0	v1,C0_SR
+
+	mtc0	zero,C0_TAGLO
+	mtc0	zero,C0_TAGHI
+
+	lw	a2,dcache_size
+	blez	a2,2f
+	lw	a3,dcache_linesize
+
+#ifdef CPU_ORION
+	srl	a2,1			# do one set (half cache) at a time
+	move	t8,a0			# save kva & n
+	move	t9,a1
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
+
+	addu	a0,t8,a2		# do next set
+	move	a1,t9			# restore n
+#endif
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
+
+2:	mtc0	v0,C0_SR
+	j	ra
+END(clean_dcache_nowrite_indexed)
+	
+/*
+ * void clean_icache (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate address range in primary instruction cache
+ */
+LEAF(clean_icache)
+	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+
+	vcacheop(a0,a1,a2,a3,Hit_Invalidate_I)
+
+2:	j	ra
+END(clean_icache)
+	
+/*
+ * void clean_icache_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate indexed range in primary instruction cache
+ */
+LEAF(clean_icache_indexed)
+	lw	a2,icache_size
+	blez	a2,2f
+	lw	a3,icache_linesize
+
+#ifdef CPU_ORION
+	srl	a2,1			# do one set (half cache) at a time
+	move	t8,a0			# save kva & n
+	move	t9,a1
+	icacheop(a0,a1,a2,a3,Index_Invalidate_I)
+
+	addu	a0,t8,a2		# do next set
+	move	a1,t9			# restore n
+#endif
+	icacheop(a0,a1,a2,a3,Index_Invalidate_I)
+
+2:	j	ra
+END(clean_icache_indexed)
+	
+
+
+/*
+ * void clean_scache (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate address range in secondary cache
+ */
+LEAF(clean_scache)
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+	vcacheop(a0,a1,a2,a3,Hit_Writeback_Inv_SD)
+
+2:	j	ra
+END(clean_scache)
+	
+/*
+ * void clean_scache_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Writeback and invalidate indexed range in secondary cache
+ */
+LEAF(clean_scache_indexed)
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+
+	icacheop(a0,a1,a2,a3,Index_Writeback_Inv_SD)
+
+2:	j	ra
+END(clean_scache_indexed)
+	
+/*
+ * void clean_scache_nowrite (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate an address range in secondary cache
+ */
+LEAF(clean_scache_nowrite)
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+
+	vcacheop(a0,a1,a2,a3,Hit_Invalidate_SD)
+
+2:	j	ra
+END(clean_scache_nowrite)
+	
+/*
+ * void clean_scache_nowrite_indexed (unsigned kva, size_t n)   R4000
+ *
+ * Invalidate indexed range in secondary cache
+ */
+LEAF(clean_scache_nowrite_indexed)
+	mfc0	v0,C0_SR
+	and	v1,v0,~SR_IE
+	mtc0	v1,C0_SR
+
+	mtc0	zero,C0_TAGLO
+	mtc0	zero,C0_TAGHI
+
+	lw	a2,scache_size
+	blez	a2,2f
+	lw	a3,scache_linesize
+
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_SD)
+
+2:	mtc0	v0,C0_SR
+	j	ra
+END(clean_scache_nowrite_indexed)
+	
+/**************************************************************************
+**
+**  get_mem_conf - get memory configuration  R4000
+**
+***************************************************************************/
+
+
+FRAME(get_mem_conf,sp,0,ra)
+
+	lw	t6, mem_size
+	sw	t6, 0(a0)
+	lw	t7, icache_size
+	sw	t7, 4(a0)
+	lw	t8, dcache_size
+	sw	t8, 8(a0) 
+	lw	t7, scache_size
+	sw	t7, 12(a0) 
+	j	ra
+
+ENDFRAME(get_mem_conf)
+
+#endif /* defined(CPU_R4000) */
+
+/*
+ * void set_mem_size (mem_size) 
+ *
+ * config_memory()'s memory size gets written into mem_size here.
+ * Now we don't need to call config_cache() with memory size - New to IDTC6.0
+ */
+FRAME(set_memory_size,sp,0,ra)
+	sw	a0, mem_size
+	j	ra
+ENDFRAME(set_memory_size)
+
+
diff --git a/c/src/lib/libbsp/mips64orion/p4000/startup/linkcmds b/c/src/lib/libbsp/mips64orion/p4000/startup/linkcmds
new file mode 100644
index 0000000000..e9d0566a12
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/startup/linkcmds
@@ -0,0 +1,69 @@
+/* @(#)linkcmds       04/08/96     1.2 */
+OUTPUT_FORMAT("elf32-bigmips")
+OUTPUT_ARCH(mips)
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+_DYNAMIC_LINK = 0;
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  .text 0x80030000  :				/* */
+/*  .text 0xa0020000  :				/* */
+/*  .text 0x00020000  :				/* */
+  {
+    _ftext = . ;
+    *(.text)
+    CREATE_OBJECT_SYMBOLS
+    _etext = .;
+  }
+  .init    ALIGN(8)  : { *(.init)    } =0
+  .fini    ALIGN(8)  : { *(.fini)    } =0
+  .ctors   ALIGN(8)  : { *(.ctors)   }
+  .dtors   ALIGN(8)  : { *(.dtors)   }
+  .rodata  ALIGN(8)  : { *(.rodata)  }
+  .rodata1 ALIGN(8)  :
+    {
+      *(.rodata1)
+      . = ALIGN(8);
+    }
+  .reginfo . : { *(.reginfo) }
+  /* also: .hash .dynsym .dynstr .plt(if r/o) .rel.got */
+  /* Read-write section, merged into data segment: */
+  .data  ALIGN(16)  :
+  {
+    _fdata = . ;
+    *(.data)
+    CONSTRUCTORS
+  }
+  .data1 ALIGN(8)  : { *(.data1) }
+  _gp = . + 0x8000;
+  .lit8 . : { *(.lit8) }
+  .lit4 . : { *(.lit4) }
+  /* also (before uninitialized portion): .dynamic .got .plt(if r/w)
+     (or does .dynamic go into its own segment?) */
+  /* We want the small data sections together, so single-instruction offsets
+     can access them all, and initialized data all before uninitialized, so
+     we can shorten the on-disk segment size.  */
+  .sdata   ALIGN(8)  : { *(.sdata) }
+  _edata  =  .;
+  __bss_start = ALIGN(8);
+  _fbss = .;
+  .sbss    ALIGN(8)  : { *(.sbss) *(.scommon) }
+  .bss     ALIGN(8)  :
+  {
+   *(.bss)
+   *(COMMON)
+   _end = . ;
+   end = . ;
+  }
+  /* Debug sections.  These should never be loadable, but they must have
+     zero addresses for the debuggers to work correctly.  */
+  .line			0 : { *(.line)			}
+  .debug		0 : { *(.debug)			}
+  .debug_sfnames	0 : { *(.debug_sfnames)		}
+  .debug_srcinfo	0 : { *(.debug_srcinfo)		}
+  .debug_macinfo	0 : { *(.debug_macinfo)		}
+  .debug_pubnames	0 : { *(.debug_pubnames)	}
+  .debug_aranges	0 : { *(.debug_aranges)		}
+}
+
diff --git a/c/src/lib/libbsp/mips64orion/p4000/startup/setvec.c b/c/src/lib/libbsp/mips64orion/p4000/startup/setvec.c
new file mode 100644
index 0000000000..1c6b581296
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/startup/setvec.c
@@ -0,0 +1,51 @@
+/*  set_vector
+ *
+ *  This routine installs an interrupt vector on the target Board/CPU.
+ *  This routine is allowed to be as board dependent as necessary.
+ *
+ *  INPUT:
+ *    handler - interrupt handler entry point
+ *    vector  - vector number
+ *    type    - 0 indicates raw hardware connect
+ *              1 indicates RTEMS interrupt connect
+ *
+ *  RETURNS:
+ *    address of previous interrupt handler
+ *
+ *  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.
+ *
+ *  setvec.c,v 1.2 1995/05/31 16:56:35 joel Exp
+ */
+
+#ifndef lint
+static char _sccsid[] = "@(#)setvec.c 04/25/96     1.2\n";
+#endif
+
+#include <rtems.h>
+#include <bsp.h>
+
+#include <excepthdr.h>
+
+mips_isr_entry set_vector(                    /* returns old vector */
+  rtems_isr_entry     handler,                  /* isr routine        */
+  rtems_vector_number vector,                   /* vector number      */
+  int                 type                      /* RTEMS or RAW intr  */
+)
+{
+  mips_isr_entry previous_isr;
+
+  if ( type )
+    rtems_interrupt_catch( handler, vector, (rtems_isr_entry *) &previous_isr );
+  else {
+    /* XXX: install non-RTEMS ISR as "raw" interupt */
+    rtems_interrupt_catch( handler, vector, (rtems_isr_entry *) &previous_isr );
+  }
+  return previous_isr;
+}
+
diff --git a/c/src/lib/libbsp/mips64orion/p4000/times b/c/src/lib/libbsp/mips64orion/p4000/times
new file mode 100644
index 0000000000..6a3dbfe1fb
--- /dev/null
+++ b/c/src/lib/libbsp/mips64orion/p4000/times
@@ -0,0 +1,200 @@
+#
+#  Timing Test Suite Results for the NO_BSP
+#
+#  NOTE: This is just a template.  The times are irrelevant since this BSP
+#        can only be compiled -- not executed.
+#
+#  times,v 1.2 1995/12/07 15:44:23 joel Exp
+#
+# @(#)times        08/01/96     1.4
+
+NOTE:  To obtain the execution time in microseconds, divide the number of
+       cycles by the clock speed.  For example, if rtems_semaphore create
+       is reported to be 1164 cycles, then at 66 Mhz it takes 17.64
+       microseconds or 8.75 microseconds at 133 Mhz.
+
+Board: Algorithmics P4000i 
+CPU: IDT 4650
+Clock Speed: 100MHz
+Memory Configuration: SRAM, DRAM, cache, etc
+Wait States:
+
+Times Reported in: cycles
+Timer Source: on-CPU cycle counter
+
+Column A:RTEMS compiled with 64 bit pointers and 64 bit unsigned32 types
+Column B:RTEMS compiled with 32 bit pointers and 32 bit unsigned32 types
+
+#                          DESCRIPTION                                 A    B
+== =================================================================  ==== ====
+ 1 rtems_semaphore_create                                              788  759
+   rtems_semaphore_delete                                              903  945
+   rtems_semaphore_obtain: available                                   119  119
+   rtems_semaphore_obtain: not available -- NO_WAIT                    118  118
+   rtems_semaphore_release: no waiting tasks                           127  127
+
+ 2 rtems_semaphore_obtain: not available -- caller blocks              842  840
+
+ 3 rtems_semaphore_release: task readied -- preempts caller            777  751
+
+ 4 rtems_task_restart: blocked task -- preempts caller                1611 1595
+   rtems_task_restart: ready task -- preempts caller                  1253 1395
+   rtems_semaphore_release: task readied -- returns to caller          365  345
+   rtems_task_create                                                   798  797
+   rtems_task_start                                                    464  460
+   rtems_task_restart: suspended task -- returns to caller             517  517
+   rtems_task_delete: suspended task                                   529  595
+   rtems_task_restart: ready task -- returns to caller                 527  525
+   rtems_task_restart: blocked task -- returns to caller               707  684
+   rtems_task_delete: blocked task                                     609  675
+
+ 5 rtems_task_suspend: calling task                                    549  549
+   rtems_task_resume: task readied -- preempts caller                  702  699
+
+ 6 rtems_task_restart: calling task                                    291  291
+   rtems_task_suspend: returns to caller                               195  194
+   rtems_task_resume: task readied -- returns to caller                198  198
+   rtems_task_delete: ready task                                       734  736
+
+ 7 rtems_task_restart: suspended task -- preempts caller              1049  990
+
+ 8 rtems_task_set_priority: obtain current priority                     94   94
+   rtems_task_set_priority: returns to caller                          418  355
+   rtems_task_mode: obtain current mode                                 44   43
+   rtems_task_mode: no reschedule                                        0   49
+   rtems_task_mode: reschedule -- returns to caller                      0  232 
+   rtems_task_mode: reschedule -- preempts caller                        0  687
+   rtems_task_set_note                                                   0  101
+   rtems_task_get_note                                                   0  103
+   rtems_clock_set                                                       0  237
+   rtems_clock_get                                                       0   16
+
+ 9 rtems_message_queue_create                                         3583 3432
+   rtems_message_queue_send: no waiting tasks                          252  252
+   rtems_message_queue_urgent: no waiting tasks                        252  252
+   rtems_message_queue_receive: available                              207  207
+   rtems_message_queue_flush: no messages flushed                       95   96
+   rtems_message_queue_flush: messages flushed                         110  110
+   rtems_message_queue_delete                                         1044 1111
+
+10 rtems_message_queue_receive: not available -- NO_WAIT               132  131
+   rtems_message_queue_receive: not available -- caller blocks         884  892
+
+11 rtems_message_queue_send: task readied -- preempts caller           397  817 
+
+12 rtems_message_queue_send: task readied -- returns to caller         397  397
+
+13 rtems_message_queue_urgent: task readied -- preempts caller         816  817
+
+14 rtems_message_queue_urgent: task readied -- returns to caller       397  398
+
+15 rtems_event_receive: obtain current events                            5    5
+   rtems_event_receive: not available -- NO_WAIT                        99   99
+   rtems_event_receive: not available -- caller blocks                 689  689
+   rtems_event_send: no task readied                                   123  123
+   rtems_event_receive: available                                      326  349
+   rtems_event_send: task readied -- returns to caller                 333  429
+
+16 rtems_event_send: task readied -- preempts caller                   843  838
+
+17 rtems_task_set_priority: preempts caller                           1002  991
+
+18 rtems_task_delete: calling task                                    1171 1157
+
+19 rtems_signal_catch                                                    0 1306
+   rtems_signal_send: returns to caller                                  0 1019
+   rtems_signal_send: signal to self                                     0  496
+   exit ASR overhead: returns to calling task                            0  120
+   exit ASR overhead: returns to preempting task                         0   73
+
+20 rtems_partition_create                                             1293 1306
+   rtems_region_create                                                1010 1019
+   rtems_partition_get_buffer: available                               481  496
+   rtems_partition_get_buffer: not available                           120  120
+   rtems_partition_return_buffer                                       587  460
+   rtems_partition_delete                                              379  320
+   rtems_region_get_segment: available                                 179  179
+   rtems_region_get_segment: not available -- NO_WAIT                  349  293
+   rtems_region_return_segment: no waiting tasks                       335  322
+   rtems_region_get_segment: not available -- caller blocks           1603 1496
+   rtems_region_return_segment: task readied -- preempts caller       1616 1533
+   rtems_region_return_segment: task readied -- returns to caller      940  939
+   rtems_region_delete                                                 301  348
+   rtems_io_initialize                                                   9   10
+   rtems_io_open                                                         6    6
+   rtems_io_close                                                        6    6
+   rtems_io_read                                                         6    6
+   rtems_io_write                                                        6    5
+   rtems_io_control                                                      6    6
+
+21 rtems_task_ident                                                   1057 1058
+   rtems_message_queue_ident                                           963  963
+   rtems_semaphore_ident                                              1137 1136
+   rtems_partition_ident                                               962  961
+   rtems_region_ident                                                  923  924
+   rtems_port_ident                                                    918  917
+   rtems_timer_ident                                                   942  941
+   rtems_rate_monotonic_ident                                          924  925
+
+22 rtems_message_queue_broadcast: task readied -- returns to caller   1084 1095
+   rtems_message_queue_broadcast: no waiting tasks                     147  148
+   rtems_message_queue_broadcast: task readied -- preempts caller     1305 1268
+
+23 rtems_timer_create                                                  202  201
+   rtems_timer_fire_after: inactive                                    261  261
+   rtems_timer_fire_after: active                                      271  269
+   rtems_timer_cancel: active                                          142  141
+   rtems_timer_cancel: inactive                                        122  124
+   rtems_timer_reset: inactive                                         222  222
+   rtems_timer_reset: active                                           246  245
+   rtems_timer_fire_when: inactive                                     312  311
+   rtems_timer_fire_when: active                                       358  358
+   rtems_timer_delete: active                                          263  263
+   rtems_timer_delete: inactive                                        247  247
+   rtems_task_wake_when                                                833  831
+
+24 rtems_task_wake_after: yield -- returns to caller                    99   98
+   rtems_task_wake_after: yields -- preempts caller                    479  478
+
+25 rtems_clock_tick                                                    313  318
+
+26 _ISR_Disable                                                         64   57
+   _ISR_Flash                                                           51   36
+   _ISR_Enable                                                          31   18
+   _Thread_Disable_dispatch                                             53   37
+   _Thread_Enable_dispatch                                             260  233
+   _Thread_Set_state                                                   446  463
+   _Thread_Disptach (NO FP)                                            839  801
+   context switch: no floating point contexts                          673  653
+   context switch: self                                                156  162
+   context switch: to another task                                      84   70
+   context switch: restore 1st FP task                                1030 1013
+   fp context switch: save idle, restore idle                          969  948
+   fp context switch: save idle, restore initialized                   275  267
+   fp context switch: save initialized, restore initialized            319  292
+   _Thread_Resume                                                      512  480
+   _Thread_Unblock                                                     121  139
+   _Thread_Ready                                                       199  203
+   _Thread_Get                                                          27   27
+   _Semaphore_Get                                                       20   21
+   _Thread_Get: invalid id                                               5    5
+
+27 interrupt entry overhead: returns to interrupted task                 0    0
+   interrupt exit overhead: returns to interrupted task                 27   41
+   interrupt entry overhead: returns to nested interrupt                 0    0
+   interrupt exit overhead: returns to nested interrupt                  0    0
+   interrupt entry overhead: returns to preempting task                  0    0
+   interrupt exit overhead: returns to preempting task                   0    0
+
+28 rtems_port_create                                                   574  560
+   rtems_port_external_to_internal                                      87   87
+   rtems_port_internal_to_external                                      86   86
+   rtems_port_delete                                                   395  353
+
+29 rtems_rate_monotonic_create                                         621  633
+   rtems_rate_monotonic_period: initiate period -- returns to caller   773  694
+   rtems_rate_monotonic_period: obtain status                          295  284
+   rtems_rate_monotonic_cancel                                         408  451
+   rtems_rate_monotonic_delete: inactive                               453  471
+   rtems_rate_monotonic_delete: active                                 332  336
+   rtems_rate_monotonic_period: conclude periods -- caller blocks      664  686
diff --git a/c/src/lib/libcpu/mips/clock/ckinit.c b/c/src/lib/libcpu/mips/clock/ckinit.c
new file mode 100644
index 0000000000..9677a02b47
--- /dev/null
+++ b/c/src/lib/libcpu/mips/clock/ckinit.c
@@ -0,0 +1,245 @@
+
+/*  ckinit.c
+ *
+ *  This file contains the clock driver initialization for the IDT 4650.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c:
+ *
+ *  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.
+ *
+ *  ckinit.c,v 1.5 1995/10/30 21:53:23 joel Exp
+ */
+
+#ifndef lint
+static char _sccsid[] = "@(#)ckinit.c 08/20/96     1.3\n";
+#endif
+
+#include <stdlib.h>
+
+#include <rtems.h>
+#include <rtems/libio.h>
+#include <bsp.h>
+
+#include <excepthdr.h>
+
+#include "clock.h"
+
+#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ ) /* equivalent to CPU clock speed in MHz */
+
+void Clock_exit( void );
+rtems_isr Clock_isr( rtems_vector_number vector );
+
+
+/*
+ *  The interrupt vector number associated with the clock tick device
+ *  driver.
+ */
+
+#define CLOCK_VECTOR_MASK    EXT_INT5
+#define CLOCK_VECTOR         0x7
+
+/*
+ *  Clock_driver_ticks is a monotonically increasing counter of the
+ *  number of clock ticks since the driver was initialized.
+ */
+
+volatile rtems_unsigned32 Clock_driver_ticks;
+
+/*
+ *  Clock_isrs is the number of clock ISRs until the next invocation of
+ *  the RTEMS clock tick routine.  The clock tick device driver
+ *  gets an interrupt once a millisecond and counts down until the
+ *  length of time between the user configured microseconds per tick
+ *  has passed.
+ */
+
+rtems_unsigned32 Clock_isrs;              /* ISRs until next tick */
+
+/*
+ * These are set by clock driver during its init
+ */
+ 
+rtems_device_major_number rtems_clock_major = ~0;
+rtems_device_minor_number rtems_clock_minor;
+
+/*
+ *  The previous ISR on this clock tick interrupt vector.
+ */
+
+rtems_isr_entry  Old_ticker;
+
+void Clock_exit( void );
+
+static unsigned32 mips_timer_rate = 0;
+
+/*
+ *  Isr Handler
+ */
+
+rtems_isr Clock_isr(
+  rtems_vector_number vector
+)
+{
+/*
+ * bump the number of clock driver ticks since initialization
+ *
+ * determine if it is time to announce the passing of tick as configured
+ * to RTEMS through the rtems_clock_tick directive
+ *
+ * perform any timer dependent tasks
+ */
+
+  /* refresh the internal CPU timer */
+  mips_set_timer( mips_timer_rate );
+
+  Clock_driver_ticks += 1;
+
+  rtems_clock_tick();
+}
+
+/* User callback shell (set from Clock_Control) */
+static void (*user_callback)(void);
+
+rtems_isr User_Clock_isr(
+  rtems_vector_number vector
+)
+{
+   /* refresh the internal CPU timer */
+   mips_set_timer( mips_timer_rate );
+
+   if (user_callback)
+      user_callback();
+}
+
+/*
+ *  Install_clock
+ *
+ *  Install a clock tick handleR and reprograms the chip.  This
+ *  is used to initially establish the clock tick.
+ */
+
+void Install_clock(
+  rtems_isr_entry clock_isr
+)
+{
+  /*
+   *  Initialize the clock tick device driver variables
+   */
+
+  Clock_driver_ticks = 0;
+  Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
+
+  /*
+   *  If ticks_per_timeslice is configured as non-zero, then the user
+   *  wants a clock tick.
+   */
+
+  if ( BSP_Configuration.ticks_per_timeslice ) {
+    Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 );
+    /*
+     *  Hardware specific initialize goes here
+     */
+
+    mips_timer_rate = BSP_Configuration.microseconds_per_tick * CLOCKS_PER_MICROSECOND;
+    mips_set_timer( mips_timer_rate );
+    enable_int(CLOCK_VECTOR_MASK);
+  }
+
+  /*
+   *  Schedule the clock cleanup routine to execute if the application exits.
+   */
+
+  atexit( Clock_exit );
+}
+
+/*
+ *  Clean up before the application exits
+ */
+
+void Clock_exit( void )
+{
+  if ( BSP_Configuration.ticks_per_timeslice ) {
+
+    /* mips: turn off the timer interrupts */
+    disable_int(CLOCK_VECTOR_MASK);
+
+  }
+}
+
+/*
+ *  Clock_initialize
+ *
+ *  Device driver entry point for clock tick driver initialization.
+ */
+
+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_unsigned32 isrlevel;
+    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', ' '))
+    {
+      rtems_interrupt_disable( isrlevel );
+      user_callback = (void (*)(void))args->buffer;
+      (void) set_vector( User_Clock_isr, CLOCK_VECTOR, 1 );
+      rtems_interrupt_enable( isrlevel );
+    }
+ 
+done:
+    return RTEMS_SUCCESSFUL;
+}
diff --git a/c/src/lib/libcpu/mips/clock/clock.S b/c/src/lib/libcpu/mips/clock/clock.S
new file mode 100644
index 0000000000..a41edf5ea5
--- /dev/null
+++ b/c/src/lib/libcpu/mips/clock/clock.S
@@ -0,0 +1,44 @@
+/*  clock.s 
+ *
+ *  This file contains the assembly code for the IDT 4650 clock driver.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ */
+/* @(#)clock.S       08/20/96     1.2 */
+
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtcpu.h>
+#include <rtems/score/idtmon.h>
+
+FRAME(mips_set_timer,sp,0,ra)
+	.set noreorder
+        mfc0 t0,C0_COUNT
+        nop
+        addu t0,a0,t0
+        mtc0 t0,C0_COMPARE
+        nop
+        j ra
+	.set reorder
+ENDFRAME(mips_set_timer)
+
+FRAME(mips_get_timer,sp,0,ra)
+	.set noreorder
+        mfc0 v0,C0_COUNT
+        nop
+        j ra
+	.set reorder
+ENDFRAME(mips_get_timer)
diff --git a/c/src/lib/libcpu/mips/clock/clock.h b/c/src/lib/libcpu/mips/clock/clock.h
new file mode 100644
index 0000000000..19bc7f6bfe
--- /dev/null
+++ b/c/src/lib/libcpu/mips/clock/clock.h
@@ -0,0 +1,24 @@
+/*  clock.s
+ *
+ *  This file contains the assembly code for the IDT 4650 clock driver.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ */
+
+/* @(#)clock.h       08/20/96     1.2 */
+
+extern void mips_set_timer( unsigned32 timer_clock_interval );
diff --git a/c/src/lib/libcpu/mips/timer/gettime.S b/c/src/lib/libcpu/mips/timer/gettime.S
new file mode 100644
index 0000000000..2c97c6e66e
--- /dev/null
+++ b/c/src/lib/libcpu/mips/timer/gettime.S
@@ -0,0 +1,34 @@
+/*  gettime.s
+ *
+ *  This file contains the assembly code for the IDT 4650 timer driver.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ */
+
+/* @(#)gettime.S       08/20/96     1.2 */
+
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtcpu.h>
+#include <rtems/score/idtmon.h>
+
+FRAME(mips_read_timer,sp,0,ra)
+	.set noreorder
+        mfc0 v0,C0_COUNT
+        nop
+        j ra
+	.set reorder
+ENDFRAME(mips_read_timer)
diff --git a/c/src/lib/libcpu/mips/timer/timer.c b/c/src/lib/libcpu/mips/timer/timer.c
new file mode 100644
index 0000000000..a141232229
--- /dev/null
+++ b/c/src/lib/libcpu/mips/timer/timer.c
@@ -0,0 +1,136 @@
+/*  timer.c
+ *
+ *  This file contains the initialization code for the IDT 4650 timer driver.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  derived from src/lib/libbsp/no_cpu/no_bsp/timer/timer.c
+ *
+ *  This file manages the benchmark timer used by the RTEMS Timing Test
+ *  Suite.  Each measured time period is demarcated by calls to
+ *  Timer_initialize() and Read_timer().  Read_timer() usually returns
+ *  the number of microseconds since Timer_initialize() exitted.
+ *
+ *  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.
+ *
+ *  timer.c,v 1.2 1995/05/31 16:56:39 joel Exp
+ */
+
+#ifndef lint
+static char _sccsid[] = "@(#)timer.c 08/20/96     1.5\n";
+#endif
+
+#include <rtems.h>
+#include <bsp.h>
+
+#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ )
+#define TIMER_MAX_VALUE 0xffffffff
+
+extern unsigned32 mips_read_timer( void );
+
+static rtems_boolean Timer_driver_Find_average_overhead;
+static unsigned32 Timer_initial_value = 0;
+
+void Timer_initialize( void )
+{
+   Timer_initial_value = mips_read_timer();
+  /*
+   *  Somehow start the timer
+   */
+
+  /* Timer on 4650 is always running */
+}
+
+/*
+ *  The following controls the behavior of Read_timer().
+ *
+ *  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      8  /* It typically takes X.X microseconds */
+                             /* (Y countdowns) to start/stop the timer. */
+                             /* This value is in cycles. */
+#define LEAST_VALID       1  /* Don't trust a clicks value lower than this */
+
+int Read_timer( void )
+{
+  unsigned64 clicks;
+  unsigned32 total;
+
+  /*
+   *  Read the timer and see how many clicks it has been since we started.
+   */
+
+  clicks = mips_read_timer();   /* XXX: read some HW here */
+  if (clicks < Timer_initial_value)
+  {
+      clicks += TIMER_MAX_VALUE;
+  }
+  clicks -= Timer_initial_value;
+
+  /*
+   *  Total is calculated by taking into account the number of timer overflow
+   *  interrupts since the timer was initialized and clicks since the last
+   *  interrupts.
+   */
+#if 0 /* leave total in number of cycles */
+   total = clicks / CLOCKS_PER_MICROSECOND;
+#else
+   total = clicks;
+#endif
+
+  if ( Timer_driver_Find_average_overhead == 1 )
+    return total;          /* in # cycles units */
+  else {
+    if ( total < LEAST_VALID )
+      return 0;            /* below timer resolution */
+  /*
+   *  leave total in cycles
+   */
+      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;
+}
+
diff --git a/c/src/lib/libcpu/mips64orion/clock/ckinit.c b/c/src/lib/libcpu/mips64orion/clock/ckinit.c
new file mode 100644
index 0000000000..9677a02b47
--- /dev/null
+++ b/c/src/lib/libcpu/mips64orion/clock/ckinit.c
@@ -0,0 +1,245 @@
+
+/*  ckinit.c
+ *
+ *  This file contains the clock driver initialization for the IDT 4650.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c:
+ *
+ *  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.
+ *
+ *  ckinit.c,v 1.5 1995/10/30 21:53:23 joel Exp
+ */
+
+#ifndef lint
+static char _sccsid[] = "@(#)ckinit.c 08/20/96     1.3\n";
+#endif
+
+#include <stdlib.h>
+
+#include <rtems.h>
+#include <rtems/libio.h>
+#include <bsp.h>
+
+#include <excepthdr.h>
+
+#include "clock.h"
+
+#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ ) /* equivalent to CPU clock speed in MHz */
+
+void Clock_exit( void );
+rtems_isr Clock_isr( rtems_vector_number vector );
+
+
+/*
+ *  The interrupt vector number associated with the clock tick device
+ *  driver.
+ */
+
+#define CLOCK_VECTOR_MASK    EXT_INT5
+#define CLOCK_VECTOR         0x7
+
+/*
+ *  Clock_driver_ticks is a monotonically increasing counter of the
+ *  number of clock ticks since the driver was initialized.
+ */
+
+volatile rtems_unsigned32 Clock_driver_ticks;
+
+/*
+ *  Clock_isrs is the number of clock ISRs until the next invocation of
+ *  the RTEMS clock tick routine.  The clock tick device driver
+ *  gets an interrupt once a millisecond and counts down until the
+ *  length of time between the user configured microseconds per tick
+ *  has passed.
+ */
+
+rtems_unsigned32 Clock_isrs;              /* ISRs until next tick */
+
+/*
+ * These are set by clock driver during its init
+ */
+ 
+rtems_device_major_number rtems_clock_major = ~0;
+rtems_device_minor_number rtems_clock_minor;
+
+/*
+ *  The previous ISR on this clock tick interrupt vector.
+ */
+
+rtems_isr_entry  Old_ticker;
+
+void Clock_exit( void );
+
+static unsigned32 mips_timer_rate = 0;
+
+/*
+ *  Isr Handler
+ */
+
+rtems_isr Clock_isr(
+  rtems_vector_number vector
+)
+{
+/*
+ * bump the number of clock driver ticks since initialization
+ *
+ * determine if it is time to announce the passing of tick as configured
+ * to RTEMS through the rtems_clock_tick directive
+ *
+ * perform any timer dependent tasks
+ */
+
+  /* refresh the internal CPU timer */
+  mips_set_timer( mips_timer_rate );
+
+  Clock_driver_ticks += 1;
+
+  rtems_clock_tick();
+}
+
+/* User callback shell (set from Clock_Control) */
+static void (*user_callback)(void);
+
+rtems_isr User_Clock_isr(
+  rtems_vector_number vector
+)
+{
+   /* refresh the internal CPU timer */
+   mips_set_timer( mips_timer_rate );
+
+   if (user_callback)
+      user_callback();
+}
+
+/*
+ *  Install_clock
+ *
+ *  Install a clock tick handleR and reprograms the chip.  This
+ *  is used to initially establish the clock tick.
+ */
+
+void Install_clock(
+  rtems_isr_entry clock_isr
+)
+{
+  /*
+   *  Initialize the clock tick device driver variables
+   */
+
+  Clock_driver_ticks = 0;
+  Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
+
+  /*
+   *  If ticks_per_timeslice is configured as non-zero, then the user
+   *  wants a clock tick.
+   */
+
+  if ( BSP_Configuration.ticks_per_timeslice ) {
+    Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 );
+    /*
+     *  Hardware specific initialize goes here
+     */
+
+    mips_timer_rate = BSP_Configuration.microseconds_per_tick * CLOCKS_PER_MICROSECOND;
+    mips_set_timer( mips_timer_rate );
+    enable_int(CLOCK_VECTOR_MASK);
+  }
+
+  /*
+   *  Schedule the clock cleanup routine to execute if the application exits.
+   */
+
+  atexit( Clock_exit );
+}
+
+/*
+ *  Clean up before the application exits
+ */
+
+void Clock_exit( void )
+{
+  if ( BSP_Configuration.ticks_per_timeslice ) {
+
+    /* mips: turn off the timer interrupts */
+    disable_int(CLOCK_VECTOR_MASK);
+
+  }
+}
+
+/*
+ *  Clock_initialize
+ *
+ *  Device driver entry point for clock tick driver initialization.
+ */
+
+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_unsigned32 isrlevel;
+    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', ' '))
+    {
+      rtems_interrupt_disable( isrlevel );
+      user_callback = (void (*)(void))args->buffer;
+      (void) set_vector( User_Clock_isr, CLOCK_VECTOR, 1 );
+      rtems_interrupt_enable( isrlevel );
+    }
+ 
+done:
+    return RTEMS_SUCCESSFUL;
+}
diff --git a/c/src/lib/libcpu/mips64orion/clock/clock.S b/c/src/lib/libcpu/mips64orion/clock/clock.S
new file mode 100644
index 0000000000..a41edf5ea5
--- /dev/null
+++ b/c/src/lib/libcpu/mips64orion/clock/clock.S
@@ -0,0 +1,44 @@
+/*  clock.s 
+ *
+ *  This file contains the assembly code for the IDT 4650 clock driver.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ */
+/* @(#)clock.S       08/20/96     1.2 */
+
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtcpu.h>
+#include <rtems/score/idtmon.h>
+
+FRAME(mips_set_timer,sp,0,ra)
+	.set noreorder
+        mfc0 t0,C0_COUNT
+        nop
+        addu t0,a0,t0
+        mtc0 t0,C0_COMPARE
+        nop
+        j ra
+	.set reorder
+ENDFRAME(mips_set_timer)
+
+FRAME(mips_get_timer,sp,0,ra)
+	.set noreorder
+        mfc0 v0,C0_COUNT
+        nop
+        j ra
+	.set reorder
+ENDFRAME(mips_get_timer)
diff --git a/c/src/lib/libcpu/mips64orion/clock/clock.h b/c/src/lib/libcpu/mips64orion/clock/clock.h
new file mode 100644
index 0000000000..19bc7f6bfe
--- /dev/null
+++ b/c/src/lib/libcpu/mips64orion/clock/clock.h
@@ -0,0 +1,24 @@
+/*  clock.s
+ *
+ *  This file contains the assembly code for the IDT 4650 clock driver.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ */
+
+/* @(#)clock.h       08/20/96     1.2 */
+
+extern void mips_set_timer( unsigned32 timer_clock_interval );
diff --git a/c/src/lib/libcpu/mips64orion/timer/gettime.S b/c/src/lib/libcpu/mips64orion/timer/gettime.S
new file mode 100644
index 0000000000..2c97c6e66e
--- /dev/null
+++ b/c/src/lib/libcpu/mips64orion/timer/gettime.S
@@ -0,0 +1,34 @@
+/*  gettime.s
+ *
+ *  This file contains the assembly code for the IDT 4650 timer driver.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ */
+
+/* @(#)gettime.S       08/20/96     1.2 */
+
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtcpu.h>
+#include <rtems/score/idtmon.h>
+
+FRAME(mips_read_timer,sp,0,ra)
+	.set noreorder
+        mfc0 v0,C0_COUNT
+        nop
+        j ra
+	.set reorder
+ENDFRAME(mips_read_timer)
diff --git a/c/src/lib/libcpu/mips64orion/timer/timer.c b/c/src/lib/libcpu/mips64orion/timer/timer.c
new file mode 100644
index 0000000000..a141232229
--- /dev/null
+++ b/c/src/lib/libcpu/mips64orion/timer/timer.c
@@ -0,0 +1,136 @@
+/*  timer.c
+ *
+ *  This file contains the initialization code for the IDT 4650 timer driver.
+ *
+ *  Author:     Craig Lebakken <craigl@transition.com>
+ *
+ *  COPYRIGHT (c) 1996 by Transition Networks Inc.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of Transition Networks not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      Transition Networks makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  derived from src/lib/libbsp/no_cpu/no_bsp/timer/timer.c
+ *
+ *  This file manages the benchmark timer used by the RTEMS Timing Test
+ *  Suite.  Each measured time period is demarcated by calls to
+ *  Timer_initialize() and Read_timer().  Read_timer() usually returns
+ *  the number of microseconds since Timer_initialize() exitted.
+ *
+ *  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.
+ *
+ *  timer.c,v 1.2 1995/05/31 16:56:39 joel Exp
+ */
+
+#ifndef lint
+static char _sccsid[] = "@(#)timer.c 08/20/96     1.5\n";
+#endif
+
+#include <rtems.h>
+#include <bsp.h>
+
+#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ )
+#define TIMER_MAX_VALUE 0xffffffff
+
+extern unsigned32 mips_read_timer( void );
+
+static rtems_boolean Timer_driver_Find_average_overhead;
+static unsigned32 Timer_initial_value = 0;
+
+void Timer_initialize( void )
+{
+   Timer_initial_value = mips_read_timer();
+  /*
+   *  Somehow start the timer
+   */
+
+  /* Timer on 4650 is always running */
+}
+
+/*
+ *  The following controls the behavior of Read_timer().
+ *
+ *  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      8  /* It typically takes X.X microseconds */
+                             /* (Y countdowns) to start/stop the timer. */
+                             /* This value is in cycles. */
+#define LEAST_VALID       1  /* Don't trust a clicks value lower than this */
+
+int Read_timer( void )
+{
+  unsigned64 clicks;
+  unsigned32 total;
+
+  /*
+   *  Read the timer and see how many clicks it has been since we started.
+   */
+
+  clicks = mips_read_timer();   /* XXX: read some HW here */
+  if (clicks < Timer_initial_value)
+  {
+      clicks += TIMER_MAX_VALUE;
+  }
+  clicks -= Timer_initial_value;
+
+  /*
+   *  Total is calculated by taking into account the number of timer overflow
+   *  interrupts since the timer was initialized and clicks since the last
+   *  interrupts.
+   */
+#if 0 /* leave total in number of cycles */
+   total = clicks / CLOCKS_PER_MICROSECOND;
+#else
+   total = clicks;
+#endif
+
+  if ( Timer_driver_Find_average_overhead == 1 )
+    return total;          /* in # cycles units */
+  else {
+    if ( total < LEAST_VALID )
+      return 0;            /* below timer resolution */
+  /*
+   *  leave total in cycles
+   */
+      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;
+}
+
diff --git a/c/src/lib/start/mips64orion/idt_csu.S b/c/src/lib/start/mips64orion/idt_csu.S
new file mode 100644
index 0000000000..bbedf0c5dd
--- /dev/null
+++ b/c/src/lib/start/mips64orion/idt_csu.S
@@ -0,0 +1,298 @@
+/*
+
+Based upon IDT provided code with the following release:
+
+This source code has been made available to you by IDT on an AS-IS
+basis. Anyone receiving this source is licensed under IDT copyrights
+to use it in any way he or she deems fit, including copying it,
+modifying it, compiling it, and redistributing it either with or
+without modifications.  No license under IDT patents or patent
+applications is to be implied by the copyright license.
+
+Any user of this software should understand that IDT cannot provide
+technical support for this software and will not be responsible for
+any consequences resulting from the use of this software.
+
+Any person who transfers this source code or any derivative work must
+include the IDT copyright notice, this paragraph, and the preceeding
+two paragraphs in the transferred software.
+
+COPYRIGHT IDT CORPORATION 1996
+LICENSED MATERIAL - PROGRAM PROPERTY OF IDT
+
+*/ 
+
+/*************************************************************************
+**
+** Copyright 1991-95 Integrated Device Technology, Inc.
+**	All Rights Reserved
+**
+** idt_csu.S -- IDT stand alone startup code
+**
+**************************************************************************/
+#include <rtems/score/iregdef.h>
+#include <rtems/score/idtcpu.h>
+#include <rtems/score/idtmon.h>
+
+
+.extern _fbss,4		  /* this is defined by the linker */
+.extern end,4		  /* this is defined by the linker */
+
+.lcomm sim_mem_cfg_struct,12
+
+	.text
+
+
+#define TMP_STKSIZE  1024 
+
+/**************************************************************************
+**
+**  start - Typicl standalone start up code required for R3000/R4000
+**
+**
+**	1)  Initialize the STATUS Register
+**		a) Clear parity error bit
+**		b) Set co_processor 1 usable bit ON
+**		c) Clear all IntMask Enables
+**		d) Set kernel/disabled mode
+**	2)  Initialize Cause Register
+**		a)  clear software interrupt bits       
+**	3)  Determine FPU installed or not
+**		if not, clear CoProcessor 1 usable bit
+**	4)  Clear bss area
+**	5)  MUST allocate temporary stack until memory size determined
+**	    It MUST be uncached to prevent overwriting when caches are cleared
+**	6)  Install exception handlers
+**	7)  Determine memory and cache sizes
+**	8)  Establish permanent stack (cached or uncached as defined by bss)
+**	9)  Flush Instruction and Data caches
+** 	10)  If there is a Translation Lookaside Buffer, Clear the TLB
+** 	11)  Execute initialization code if the IDT/c library is to be used
+** 
+** 	12)  Jump to user's "main()"
+** 	13)  Jump to promexit
+**
+**	IDT/C 5.x defines _R3000, IDT/C 6.x defines _R4000 internally. 
+**	This is used to mark code specific to R3xxx or R4xxx processors.
+**	IDT/C 6.x defines __mips to be the ISA level for which we're 
+**	generating code. This is used to make sure the stack etc. is 
+**	double word aligned, when using -mips3 (default) or -mips2, 
+**	when compiling with IDT/C6.x
+**
+***************************************************************************/
+
+FRAME(start,sp,0,ra)
+
+	.set	noreorder
+#ifdef _R3000
+	li	v0,SR_PE|SR_CU1        /* reset parity error and set */
+					/* cp1 usable */
+#endif
+#ifdef _R4000
+#if __mips==3 || defined(R4650)
+	li	v0,SR_CU1|SR_DE|SR_FR 	/* initally clear ERL, enable FPA 64bit regs*/
+	                                /* 4650: Need fr to be set anyway */
+#else
+	li	v0,SR_CU1|SR_DE 	/* initally clear ERL, enable FPA 32bit regs*/
+#endif mips3
+#endif
+
+	mtc0	v0,C0_SR		/* clr IntMsks/ kernel/disabled mode */
+	nop
+	mtc0	zero,C0_CAUSE		/* clear software interrupts */
+	nop
+
+#ifdef _R4000
+	li	v0,CFG_C_NONCOHERENT	# initialise default cache mode
+	mtc0	v0,C0_CONFIG
+#endif
+
+/*
+**	check to see if an fpu is really plugged in 
+*/
+	li	t3,0xaaaa5555		/*  put a's and 5's in t3	*/
+	mtc1	t3,fp0			/* try to write them into fp0   */	
+	mtc1	zero,fp1		/* try to write zero in fp	*/
+	mfc1	t0,fp0
+	mfc1	t1,fp1
+	nop
+	bne	t0,t3,1f		/* branch if no match  */
+	nop
+	bne	t1,zero,1f		/* double check for positive id   */
+	nop
+	/* We have a FPU. clear fcsr */
+	ctc1	zero, fcr31
+	j	2f			/* status register already correct  */
+	nop
+1:
+#ifdef _R3000
+	li	v0, SR_PE		/* reset parity error/NO cp1 usable */
+#endif
+
+#ifdef _R4000
+        li      v0,SR_DE 		/* clear ERL and disable FPA */
+#endif
+
+	mtc0	v0, C0_SR		/* reset status register */
+2:
+	la  	gp, _gp			
+
+	la	v0,_fbss 		/* clear bss before using it */
+	la	v1,end 			/* end of bss */
+3:	sw	zero,0(v0)
+	bltu	v0,v1,3b
+	add	v0,4 
+
+
+/************************************************************************
+**
+** 	Temporary Stack - needed to  handle stack saves until
+**			  memory size is determined and permanent stack set
+**
+**			  MUST be uncached to avoid confusion at cache
+**			       switching during memory sizing
+**
+*************************************************************************/
+#if __mips==3
+	/* For MIPS 3, we need to be sure that the stack is aligned on a
+	 * double word boundary. 
+	 */
+	andi	t0, v0, 0x7
+	beqz	t0, 11f   /* Last three bits Zero, already aligned */
+	nop
+	add	v0, 4
+11:
+#endif
+
+	or	v0, K1BASE		/* switch to uncached */
+	add	v1, v0, TMP_STKSIZE 	/* end of bss + length of tmp stack */
+	sub	v1, v1, (4*4)		/* overhead */
+	move	sp, v1			/* set sp to top of stack */
+4:	sw	zero, 0(v0)  
+	bltu	v0, v1, 4b		/* clear out temp stack */
+	add	v0, 4 
+	
+	jal	init_exc_vecs		/* install exception handlers */ 
+	nop				/* MUST do before memory probes */
+
+	la	v0, 5f
+	li	v1, K1BASE		/* force into uncached space */
+	or	v0, v1			/* during memory/cache probes */
+	j	v0
+	nop
+5:
+	la	a0, sim_mem_cfg_struct
+	jal	sim_mem_cfg		/* Make SIM call to get mem size */
+	nop
+	la	a0, sim_mem_cfg_struct
+	lw	a0, 0(a0)		/* Get memory size from struct */
+#ifdef _R3000
+	jal	config_Icache
+	nop
+	jal	config_Dcache		/* determine size of D & I caches */
+	nop	
+#endif
+#ifdef _R4000
+	jal	config_cache		/* determine size of D & I caches */
+	nop
+#endif
+
+	move	v0, a0			/* mem_size */
+
+#if __mips==3
+	/* For MIPS 3, we need to be sure that the stack (and hence v0
+	 * here) is aligned on a double word boundary. 
+	 */
+	andi	t0, v0, 0x7
+	beqz	t0, 12f   /* Last three bits Zero, already aligned */
+	nop
+	subu	v0, 4	/* mem_size was not aligned on doubleword bdry????*/
+12:
+#endif
+
+
+
+/**************************************************************************
+**
+**  Permanent Stack - now know top of memory, put permanent stack there	
+**
+***************************************************************************/ 
+
+	la	t2, _fbss		/* cache mode as linked */
+	and	t2, 0xF0000000		/* isolate segment */
+	la	t1, 6f
+	j	t1			/* back to original cache mode */
+	nop
+6:
+	or 	v0, t2			/* stack back to original cache mode */
+	addiu   v0,v0,-16		/* overhead */
+	move	sp, v0			/* now replace count w top of memory */
+	move	v1, v0
+	subu	v1, P_STACKSIZE 	/* clear requested stack size */
+
+7:	sw	zero, 0(v1)		/* clear P_STACKSIZE  stack */ 
+	bltu	v1,v0,7b
+	add	v1, 4 
+	.set	reorder
+
+#ifdef _R3000 
+	jal	flush_Icache	
+	jal	flush_Dcache		/* flush Data & Instruction caches */
+#endif
+#ifdef _R4000 
+	jal	flush_cache_nowrite	/* flush Data & Instruction caches */
+#endif
+
+
+
+/**************************************************************************
+**
+**	If this chip supports a Translation Lookaside Buffer, clear it
+**
+***************************************************************************/ 
+
+	.set	noreorder
+	mfc0	t1,  C0_SR		/* look at Status Register */
+	nop
+	.set 	reorder
+#ifdef _R3000
+	li	t2, SR_TS		/* TLB Shutdown bit */
+	and 	t1,t2      		/* TLB Shutdown if 1 */
+	bnez	t1, 8f			/* skip clearing if no TLB */	
+#endif
+
+#ifndef R4650
+	jal	init_tlb		/* clear the tlb */
+#endif
+
+
+/************************************************************************
+**
+**  Initialization required if using IDT/c or libc.a, standard C Lib 
+**
+**  can SKIP if not necessary for application
+**
+************************************************************************/
+8:
+
+	jal	idtsim_init_sbrk
+	jal	idtsim_init_file
+/***********************  END I/O initialization **********************/
+
+
+	jal	main
+
+	jal	idtsim_promexit
+
+ENDFRAME(start)
+
+
+	.globl	sim_mem_cfg
+sim_mem_cfg:
+	.set noat
+	.set noreorder
+	li	AT, (0xbfc00000+((55)*8))
+	jr	AT
+	nop
+	.set at
+	.set reorder