BSP submitted by Thomas Doerfler <td@imd.m.isar.de>:

    Finally I am through: I have found the last bugs that made RTEMS-
    4.0-beta3 start on my ppc403 board from ROM. So now the '403
    support is up to date again.

    Roughly I have added the following features:
        - support for the on-chip interrupt controller (in a separate module)
        - interrupt support for the console device
        - termios support for the console device

    ==============================================
    Since the BSP behaivour changed in some details (console no
    longer is polling, other memory layout etc) I have created a new
    BSP "helas403" rather than changing the "papyrus" BSP. The old
    "polled" console driver still sticks around in "console.c.polled"
    To get the BSP up and running, I had to create the new BSP files
    (derived from papyrus). Besides that, the following source areas
    have been changed:

    - c/src/lib/libcpu/powerpc/ppc403: changes to console driver, small
    changes to clock driver, new "ictrl" interrupt controller driver

    - c/src/exec/score/cpu/powerpc/ppc.h: some small changes
    (added ppc403 characteristics like a exception vector prefix
    register, some special register definitions). I am quite sure, they
    are compatible with the existing sources, although I did not check

    - c/src/exec/score/cpu/powerpc/cpu.c: There is one severe
    limitation in the exception entries: Due to the current code
    arrangement, the "branch absolute" to the ISR handler may only
    jump to the first 128MByte or the last 128MByte of the 4GByte
    address range. When the ppc403 is running out of ROM, the ROM
    functions are located in the last 128MByte (0xFFF00000 and up).
    These addresses were not handled correctly (sign reduced) in
    "install_raw_handler". The change I added should work on existing
    ppc BSPs aswell...

    - c/src/lib/libc/termios.c: During my tests, I added one change you
    sent me, so this patch will already be incorporated in the current
    source tree.

    There are some smaller changes, see the attached diff file.

    =========================================
    Concerning the GNU toolchain:

    I tried several tool chains. Finally I almost succeeded with

    egcs-1.0.3a with patch  egcs-1.0.3-rtems-diff-19980527

    I had to add the following lines to the egcs files. Without them
    configure complaint that the cross compiler could not generate
    executable output.
    - additional lines needed in egcs distribution in file
      gcc/config/rs6000/rtems.h:

    +++ lines start
    #undef STARTFILE_DEFAULT_SPEC
    #define STARTFILE_DEFAULT_SPEC "ecrti.o%s"

    #undef  ENDFILE_DEFAULT_SPEC
    #define ENDFILE_DEFAULT_SPEC "ecrtn.o%s"
    ++++ lines end

    As far as I have seen in the Changelog of egcs, you have recently
    sent two patches affecting the powerpc support, but they were
    added in the wrong order.... :-(

    egcs-19980628 with patch egcs-19980628-rtems-diff-19980707 does
    not work!

    I used binutils 2.9.1 with patch binutils-2.9.1-rtems-diff-19980515
     (binutils 2.8.1 does not work, internal error in gas)
    and newlib-1.8.0 with patch newlib-1.8.0-rtems-diff-19980707

    Finally I had to poke a line in the "bit" script, since, on my LINUX
    machine, the GNU make is only available as "make", not as
    "gmake"...

    For all the tools and newlib I selected configuration "powerpc-
    rtems".

--------------------------------------------
IMD Ingenieurbuero fuer Microcomputertechnik
Thomas Doerfler           Herbststrasse 8
D-82178 Puchheim          Germany
email:    td@imd.m.isar.de

6 files changed, 701 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/powerpc/helas403/startup/Makefile.in b/c/src/lib/libbsp/powerpc/helas403/startup/Makefile.in
new file mode 100644
index 0000000000..aa59a2c153
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/helas403/startup/Makefile.in
@@ -0,0 +1,56 @@
+#
+#  $Id$
+#
+
+@SET_MAKE@
+srcdir = @srcdir@
+VPATH = @srcdir@:@srcdir@/../../../shared
+RTEMS_ROOT = @top_srcdir@
+PROJECT_ROOT = @PROJECT_ROOT@
+
+PGM=${ARCH}/startup.rel
+
+# C source names, if any, go here -- minus the .c
+C_PIECES=bspclean bsplibc bsppost bspstart main sbrk setvec
+C_FILES=$(C_PIECES:%=%.c)
+C_O_FILES=$(C_PIECES:%=${ARCH}/%.o)
+
+H_FILES=
+
+SRCS=$(C_FILES) $(H_FILES)
+OBJS=$(C_O_FILES)
+
+include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP).cfg
+include $(RTEMS_ROOT)/make/leaf.cfg
+
+#
+# (OPTIONAL) Add local stuff here using +=
+#
+
+DEFINES  +=
+CPPFLAGS +=
+CFLAGS   +=
+
+LD_PATHS  +=
+LD_LIBS   +=
+LDFLAGS   +=
+
+#
+# Add your list of files to delete here.  The config files
+#  already know how to delete some stuff, so you may want
+#  to just run 'make clean' first to see what gets missed.
+#  'make clobber' already includes 'make clean'
+#
+
+CLEAN_ADDITIONS +=
+CLOBBER_ADDITIONS +=
+
+${PGM}: ${SRCS} ${OBJS}
+	$(make-rel)
+
+all:	${ARCH} $(SRCS) $(PGM)
+	$(INSTALL) $(srcdir)/linkcmds ${PROJECT_RELEASE}/lib
+
+# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile
+install:  all
+
diff --git a/c/src/lib/libbsp/powerpc/helas403/startup/bspclean.c b/c/src/lib/libbsp/powerpc/helas403/startup/bspclean.c
new file mode 100644
index 0000000000..e18aa7d381
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/helas403/startup/bspclean.c
@@ -0,0 +1,44 @@
+/*  bsp_cleanup()
+ *
+ *  This routine normally is part of start.s and usually returns
+ *  control to a monitor.
+ *
+ *  INPUT:  NONE
+ *
+ *  OUTPUT: NONE
+ *
+ *  Author:	Andrew Bray <andy@i-cubed.co.uk>
+ *
+ *  COPYRIGHT (c) 1995 by i-cubed ltd.
+ *
+ *  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 i-cubed limited not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      i-cubed limited makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/startup/bspclean.c:
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+
+void bsp_cleanup( void )
+{
+  rtems_fatal_error_occurred(0);
+}
diff --git a/c/src/lib/libbsp/powerpc/helas403/startup/bspstart.c b/c/src/lib/libbsp/powerpc/helas403/startup/bspstart.c
new file mode 100644
index 0000000000..b095ba6595
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/helas403/startup/bspstart.c
@@ -0,0 +1,201 @@
+/*  bsp_start()
+ *
+ *  This routine starts the application.  It includes application,
+ *  board, and monitor specific initialization and configuration.
+ *  The generic CPU dependent initialization has been performed
+ *  before this routine is invoked.
+ *
+ *  INPUT:  NONE
+ *
+ *  OUTPUT: NONE
+ *
+ *  Author:	Thomas Doerfler <td@imd.m.isar.de>
+ *              IMD Ingenieurbuero fuer Microcomputertechnik
+ *
+ *  COPYRIGHT (c) 1998 by IMD
+ * 
+ *  Changes from IMD are covered by the original distributions terms.
+ *  This file has been derived from the papyrus BSP:	
+ *
+ *  Author:	Andrew Bray <andy@i-cubed.co.uk>
+ *
+ *  COPYRIGHT (c) 1995 by i-cubed ltd.
+ *
+ *  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 i-cubed limited not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      i-cubed limited makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  Modifications for spooling console driver and control of memory layout
+ *  with linker command file by
+ *              Thomas Doerfler <td@imd.m.isar.de>
+ *  for these modifications:
+ *  COPYRIGHT (c) 1997 by IMD, Puchheim, Germany.
+ *
+ *  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. IMD makes no representations about the suitability
+ *      of this software for any purpose.
+ * 
+ *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/startup/bspstart.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.
+ *
+ *  $Id$
+ */
+
+
+#include <bsp.h>
+#include <ictrl.h>
+#include <rtems/libio.h>
+ 
+#include <libcsupport.h>
+ 
+#include <string.h>
+#include <fcntl.h>
+ 
+#ifdef STACK_CHECKER_ON
+#include <stackchk.h>
+#endif
+
+/*
+ *  The original table from the application and our copy of it with
+ *  some changes.
+ */
+
+extern rtems_configuration_table Configuration;
+
+rtems_configuration_table  BSP_Configuration;
+
+rtems_cpu_table Cpu_table;
+
+char *rtems_progname;
+void *bsp_ram_end = (void *)RAM_END;  /* first addr behind avail. ram area */
+
+/*      Initialize whatever libc we are using
+ *      called from postdriver hook
+ */
+ 
+void bsp_postdriver_hook(void);
+void bsp_libc_init( void *, unsigned32, int );
+
+/*
+ *
+ *  bsp_predriver_hook
+ *
+ *  Before drivers are setup.
+ */ 
+
+void bsp_predriver_hook(void)
+{
+  rtems_status_code status;
+  /* init the PPC403GA external interrupt controller handler... */
+  status = ictrl_init();
+}
+
+/*
+ *  Function:   bsp_pretasking_hook
+ *  Created:    95/03/10
+ *
+ *  Description:
+ *      BSP pretasking hook.  Called just before drivers are initialized.
+ *      Used to setup libc and install any BSP extensions.
+ *
+ *  NOTES:
+ *      Must not use libc (to do io) from here, since drivers are
+ *      not yet initialized.
+ *
+ */
+ 
+void bsp_pretasking_hook(void)
+{
+    extern int _end;
+    rtems_unsigned32        heap_start;
+
+    heap_start = (rtems_unsigned32) &_end;
+    if (heap_start & (CPU_ALIGNMENT-1))
+        heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
+
+    bsp_libc_init((void *) heap_start, 64 * 1024, 0);
+ 
+#ifdef RTEMS_DEBUG
+    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+}
+ 
+
+/*
+ *  bsp_start
+ *
+ *  This routine does the bulk of the system initialization.
+ */
+
+void bsp_start( void )
+{
+  /*
+   *  Allocate the memory for the RTEMS Work Space.  This can come from
+   *  a variety of places: hard coded address, malloc'ed from outside
+   *  RTEMS world (e.g. simulator or primitive memory manager), or (as
+   *  typically done by stock BSPs) by subtracting the required amount
+   *  of work space from the last physical address on the CPU board.
+   */
+
+  /*
+   *  Need to "allocate" the memory for the RTEMS Workspace and
+   *  tell the RTEMS configuration where it is.  This memory is
+   *  not malloc'ed.  It is just "pulled from the air".
+   */
+  /* FIXME: this should be modified. work_space_size cannot be valid 
+   * now, since console_reserve_resources will modify something...
+   */
+  /* FIME: plan usage of RAM better: 
+     - make top of ram dynamic,
+     - take out some part for persistant log
+     - make rest of ram to heap... 
+     -remove RAM_END from bsp.h, this cannot be valid... 
+      or must be a function call
+   */
+  BSP_Configuration.work_space_start = (void *)
+      ((char *)(bsp_ram_end)) - BSP_Configuration.work_space_size;
+
+  /*
+   *  Account for the console's resources
+   */
+
+  console_reserve_resources( &BSP_Configuration );
+
+  /*
+   *  initialize the CPU table for this BSP
+   */
+
+  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
+  Cpu_table.predriver_hook  = bsp_predriver_hook;
+  Cpu_table.postdriver_hook = bsp_postdriver_hook;
+  Cpu_table.interrupt_stack_size = 4 * 1024;
+
+  Cpu_table.clicks_per_usec = 25;
+  Cpu_table.serial_per_sec = 25000000;
+  Cpu_table.serial_external_clock = 0;
+  Cpu_table.timer_internal_clock  = 1;
+  Cpu_table.serial_xon_xoff = 0;
+  Cpu_table.serial_cts_rts = 1;
+  Cpu_table.serial_rate = 9600;
+  Cpu_table.timer_average_overhead = 2;
+  Cpu_table.timer_least_valid = 3;
+  Cpu_table.exceptions_in_RAM = TRUE;
+}
diff --git a/c/src/lib/libbsp/powerpc/helas403/startup/linkcmds b/c/src/lib/libbsp/powerpc/helas403/startup/linkcmds
new file mode 100644
index 0000000000..b2feeaacb0
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/helas403/startup/linkcmds
@@ -0,0 +1,200 @@
+/*
+ *  This file contains directives for the GNU linker which are specific
+ *  to the helas-403
+ *  This file is intended to be used together with flashentry.s
+ *  it will generate a ROM that can be started directly after powerup reset
+ *  $Id$
+ */
+
+OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
+              "elf32-powerpc")
+OUTPUT_ARCH(powerpc)
+ SEARCH_DIR(/usr/local/powerpc-rtems/lib);
+ 
+ENTRY(flash_entry)
+ 
+MEMORY
+  {
+        RAM : ORIGIN = 0, LENGTH = 8M
+        FLASH : ORIGIN = 0xFFF00000, LENGTH = 512K
+  }
+
+  /* DIRTY TRICK: repeat addresses here, so we can work with them... */
+  flash.start = 0xFFF00000;
+  flash.size  = 512K; 
+
+SECTIONS
+{
+  .entry :
+  {
+     *(.entry)
+  } > FLASH /* this is ROM for flash_entry */
+  .text :
+  {
+     text.start = . ;
+     *(.entry2)
+     *(.text)
+     *(.rodata)
+     *(.rodata1)
+     *(.descriptors)
+     *(rom_ver)
+     etext = ALIGN(0x10);
+     _etext = .;
+
+
+     __CTOR_LIST__ = .;
+     LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+     *(.ctors)
+     LONG(0)
+     __CTOR_END__ = .;
+
+     __DTOR_LIST__ = .;
+     LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+     *(.dtors)
+     LONG(0)
+     __DTOR_END__ = .;
+
+     *(.lit)
+     *(.shdata)
+     *(.init)
+     *(.fini)
+     . = ALIGN(0x10);
+     _endtext = .;
+     text.end = .;
+     copy.src = .;
+     copy.tmptop.txt = .;
+  } > FLASH /* this is ROM for flash_entry */
+
+  text.size = text.end - text.start;
+
+  /* R/W Data */
+  /* place vectors to start at offset 0x100... */
+  /* IMPORTANT: sections ".fill" and ".vectors" must be the first in RAM!!*/
+  .fill 0x00010000 :
+  {
+    . = . + 0x0100;
+  } > RAM
+  
+  .vectors :              AT (copy.src)
+  {
+    copy.dest = .;
+    *(.vectors)
+    . = ALIGN(0x10);
+    copy.tmptop.vec = .;
+  } > RAM
+
+  .data :                 AT (copy.tmptop.vec - copy.dest + copy.src)
+  {
+    *(.data)
+    *(.data1)
+    PROVIDE (__SDATA_START__ = .);
+    *(.sdata)
+    . = ALIGN(0x10);
+    copy.tmptop.dat = .;
+  } > RAM
+ 
+  PROVIDE (__EXCEPT_START__ = .);
+  .gcc_except_table   :   AT (copy.tmptop.dat - copy.dest + copy.src)
+  { 
+    *(.gcc_except_table) 
+    . = ALIGN(0x10);
+    copy.tmptop.exc = .;
+  } >RAM
+  PROVIDE (__EXCEPT_END__ = .);
+
+  __GOT_START__ = .;
+  .got :                  AT (copy.tmptop.exc - copy.dest + copy.src)
+  {
+    s.got = .;
+    *(.got.plt) *(.got)
+    . = ALIGN(0x10);
+    copy.tmptop.got = .;
+  } > RAM
+  __GOT_END__ = .;
+
+  .got1 :                 AT (copy.tmptop.got - copy.dest + copy.src)
+  { 
+    *(.got1) 		
+    . = ALIGN(0x10);
+    copy.tmptop.gt1 = .;
+  } >RAM
+
+  PROVIDE (__GOT2_START__ = .);
+  PROVIDE (_GOT2_START_ = .);
+  .got2		  :       AT (copy.tmptop.gt1 - copy.dest + copy.src)
+  { 
+    *(.got2) 	
+    . = ALIGN(0x10);
+    copy.tmptop.gt2 = .;
+  } >RAM
+  PROVIDE (__GOT2_END__ = .);
+  PROVIDE (_GOT2_END_ = .);
+
+  PROVIDE (__FIXUP_START__ = .);
+  PROVIDE (_FIXUP_START_ = .);
+  .fixup	  :       AT (copy.tmptop.gt2 - copy.dest + copy.src)
+  { 
+    *(.fixup) 	
+    . = ALIGN(0x10);
+    copy.tmptop.fix = .;
+  } >RAM
+  PROVIDE (_FIXUP_END_ = .);
+  PROVIDE (__FIXUP_END__ = .);
+ 
+  PROVIDE (__SDATA2_START__ = .);
+  .sdata2   	  :       AT (copy.tmptop.fix - copy.dest + copy.src)
+  { 
+    *(.sdata2) 	
+    . = ALIGN(0x10);
+    copy.tmptop.sda = .;
+  } >RAM
+
+  copy.size = copy.tmptop.sda - copy.dest;
+
+  .sbss2   	  : 
+  { 
+    *(.sbss2) 	
+  } >RAM
+  PROVIDE (__SBSS2_END__ = .);
+
+  __SBSS_START__ = .;
+  .bss :
+  {
+    bss.start = .;
+    *(.bss) *(.sbss) *(COMMON)
+    bss.end = ALIGN(4);
+  } > RAM
+  __SBSS_END__ = .;
+ 
+  bss.size = bss.end - bss.start;
+
+  /* reserve 16KByte for stack... */
+  stack.end = bss.end + 16K;
+  PROVIDE(_end = stack.end);
+
+  .line 0 : { *(.line) }
+  .debug 0 : { *(.debug) }
+  .debug_sfnames 0 : { *(.debug_sfnames) }
+  .debug_srcinfo 0 : { *(.debug_srcinfo) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  .debug_aranges 0 : { *(.debug_aranges) }
+  .debug_aregion 0 : { *(.debug_aregion) }
+  .debug_macinfo 0 : { *(.debug_macinfo) }
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+
+  /* 
+   * place reset instruction into last word of FLASH 
+   * NOTE: after reset, PPC403 starts executing from address
+   * 0xFFFFFFFC
+   * The reset section is placed in ROM at 0xF7FFFFFC instead, 
+   * but a mirror of this address exists at 0xFFFFFFFC due to
+   * the initial memory controller setup
+   */
+  .reset  flash.start - 4 + flash.size :
+  {
+    *(.reset)
+  } > FLASH
+}
+
+
diff --git a/c/src/lib/libbsp/powerpc/helas403/startup/linkcmds.dl b/c/src/lib/libbsp/powerpc/helas403/startup/linkcmds.dl
new file mode 100644
index 0000000000..8e2128eebc
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/helas403/startup/linkcmds.dl
@@ -0,0 +1,142 @@
+/*
+ *  This file contains directives for the GNU linker which are specific
+ *  to the helas403
+ *  This file is intended to be used together with dlentry.s
+ *  it will generate downloadable code
+ *
+ *  $Id$
+ */
+
+OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
+              "elf32-powerpc")
+OUTPUT_ARCH(powerpc)
+ SEARCH_DIR(/usr/local/powerpc-rtems/lib);
+ 
+ENTRY(download_entry)
+ 
+MEMORY
+  {
+        RAM : ORIGIN = 0, LENGTH = 8M
+        FLASH : ORIGIN = 0xFFF00000, LENGTH = 512K
+  }
+ 
+SECTIONS
+{
+  .vectors : 0x00010100
+  {
+    *(.vectors)
+  } > RAM
+
+  .text :
+  {
+     text.start = . ;
+     *(.entry)
+     *(.entry2)
+     *(.text)
+     *(.rodata)
+     *(.rodata1)
+     *(.descriptors)
+     *(rom_ver)
+     etext = ALIGN(0x10);
+     _etext = .;
+
+
+     __CTOR_LIST__ = .;
+     LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+     *(.ctors)
+     LONG(0)
+     __CTOR_END__ = .;
+
+     __DTOR_LIST__ = .;
+     LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+     *(.dtors)
+     LONG(0)
+     __DTOR_END__ = .;
+
+     *(.lit)
+     *(.shdata)
+     *(.init)
+     *(.fini)
+     _endtext = ALIGN(0x10);
+     text.end = .;
+  } > RAM
+
+  text.size = text.end - text.start;
+
+  /* R/W Data */
+  .data :
+  {
+    *(.data)
+    *(.data1)
+    PROVIDE (__SDATA_START__ = .);
+    *(.sdata)
+  } > RAM
+ 
+  PROVIDE (__EXCEPT_START__ = .);
+  .gcc_except_table   :
+  { 
+	*(.gcc_except_table) 
+  } >RAM
+  PROVIDE (__EXCEPT_END__ = .);
+
+  __GOT_START__ = .;
+  .got :
+  {
+     s.got = .;
+     *(.got.plt) *(.got)
+  } > RAM
+  __GOT_END__ = .;
+
+  .got1 : 
+  { 
+	*(.got1) 		
+  } >RAM
+
+  PROVIDE (__GOT2_START__ = .);
+  PROVIDE (_GOT2_START_ = .);
+  .got2		  :  
+  { 
+	*(.got2) 	
+  } >RAM
+  PROVIDE (__GOT2_END__ = .);
+  PROVIDE (_GOT2_END_ = .);
+
+  PROVIDE (__FIXUP_START__ = .);
+  PROVIDE (_FIXUP_START_ = .);
+  .fixup	  : { *(.fixup) 	} >RAM
+  PROVIDE (_FIXUP_END_ = .);
+  PROVIDE (__FIXUP_END__ = .);
+ 
+  PROVIDE (__SDATA2_START__ = .);
+  .sdata2   	  : { *(.sdata2) 	} >RAM
+  .sbss2   	  : { *(.sbss2) 	} >RAM
+  PROVIDE (__SBSS2_END__ = .);
+
+  .sbss2   	  : { *(.sbss2) 	} >RAM
+  PROVIDE (__SBSS2_END__ = .);
+
+  __SBSS_START__ = .;
+  .bss :
+  {
+    bss.start = .;
+    *(.bss) *(.sbss) *(COMMON)
+    bss.end = ALIGN(4);
+  } > RAM
+  __SBSS_END__ = .;
+ 
+  bss.size = bss.end - bss.start;
+  PROVIDE(_end = bss.end);
+
+  .line 0 : { *(.line) }
+  .debug 0 : { *(.debug) }
+  .debug_sfnames 0 : { *(.debug_sfnames) }
+  .debug_srcinfo 0 : { *(.debug_srcinfo) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  .debug_aranges 0 : { *(.debug_aranges) }
+  .debug_aregion 0 : { *(.debug_aregion) }
+  .debug_macinfo 0 : { *(.debug_macinfo) }
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+}
+
+
diff --git a/c/src/lib/libbsp/powerpc/helas403/startup/setvec.c b/c/src/lib/libbsp/powerpc/helas403/startup/setvec.c
new file mode 100644
index 0000000000..0f6a676236
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/helas403/startup/setvec.c
@@ -0,0 +1,58 @@
+/*  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
+ *
+ *  Author:	Andrew Bray <andy@i-cubed.co.uk>
+ *
+ *  COPYRIGHT (c) 1995 by i-cubed ltd.
+ *
+ *  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 i-cubed limited not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      i-cubed limited makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/startup/setvec.c:
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+
+rtems_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  */
+)
+{
+  rtems_isr_entry previous_isr;
+
+  rtems_interrupt_catch( handler, vector, (rtems_isr_entry *) &previous_isr );
+
+  return previous_isr;
+}
+