Ejemplo n.º 1
0
/*
 *  bsp_start
 *
 *  This routine does the bulk of the system initialization.
 */
void bsp_start( void )
{
  /*
   * Note we can not get CPU identification dynamically.
   * PVR has to be set to PPC_PSIM (0xfffe) from the device
   * file.
   */

  get_ppc_cpu_type();

  /*
   *  initialize the device driver parameters
   */
  BSP_bus_frequency        = (unsigned int)&PSIM_INSTRUCTIONS_PER_MICROSECOND;
  bsp_clicks_per_usec      = BSP_bus_frequency;
  BSP_time_base_divisor    = 1;

  /*
   *  The simulator likes the exception table to be at 0xfff00000.
   */
  bsp_exceptions_in_RAM = FALSE;

  /*
   * Initialize default raw exception handlers.
   */
  ppc_exc_initialize(
    PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
    (uintptr_t) bsp_section_work_begin,
    rtems_configuration_get_interrupt_stack_size()
  );

  /*
   * Initalize RTEMS IRQ system
   */
  BSP_rtems_irq_mng_init(0);

  /*
   * Setup BATs and enable MMU
   */
  /* Memory */
  setdbat(0, 0x0<<24, 0x0<<24, 2<<24, _PAGE_RW);
  setibat(0, 0x0<<24, 0x0<<24, 2<<24,        0);
  /* PCI    */
  setdbat(1, 0x8<<24, 0x8<<24, 1<<24,  IO_PAGE);
  setdbat(2, 0xc<<24, 0xc<<24, 1<<24,  IO_PAGE);

  _write_MSR(_read_MSR() | MSR_DR | MSR_IR);
  __asm__ volatile("sync; isync");

}
/*
 *  bsp_start
 *
 *  This routine does the bulk of the system initialization.
 */
void bsp_start( void )
{
  rtems_status_code sc = RTEMS_SUCCESSFUL;
  ppc_cpu_id_t myCpu;
  ppc_cpu_revision_t myCpuRevision;

  /* Get the UART clock initialized first in case we call printk */

  InitUARTClock();
  Init_FPGA();
  EarlyUARTInit(115200);

  /*
   * Get CPU identification dynamically. Note that the get_ppc_cpu_type()
   * function store the result in global variables
   * so that it can be used later...
   */
  myCpu       = get_ppc_cpu_type();
  myCpuRevision = get_ppc_cpu_revision();

  /*
   *  initialize the device driver parameters
   */

  /* Set globals visible to clock.c */
  /* timebase register ticks/microsecond = CPU Clk in MHz */
  bsp_clicks_per_usec = 400;

  bsp_timer_internal_clock  = TRUE;
  bsp_timer_average_overhead = 2;
  bsp_timer_least_valid = 3;

  /*
   * Initialize default raw exception handlers.
   */
  sc = ppc_exc_initialize(
    PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
    (uintptr_t) intrStack_start,
    (uintptr_t) intrStack_size
  );
  if (sc != RTEMS_SUCCESSFUL) {
    BSP_panic("cannot initialize exceptions");
  }

  /*
   * Install our own set of exception vectors
   */
  BSP_rtems_irq_mng_init(0);
}
/*
 *  bsp_start
 *
 *  This routine does the bulk of the system initialization.
 */
void bsp_start( void )
{
  rtems_status_code sc = RTEMS_SUCCESSFUL;
  ppc_cpu_id_t myCpu;
  ppc_cpu_revision_t myCpuRevision;

  /*
   * Get CPU identification dynamically. Note that the get_ppc_cpu_type()
   * function store the result in global variables
   * so that it can be used latter...
   */
  myCpu 	    = get_ppc_cpu_type();
  myCpuRevision = get_ppc_cpu_revision();

  /*
   *  initialize the device driver parameters
   */

  /* timebase register ticks/microsecond */
  bsp_clicks_per_usec = (250000000 / 1000000);
  bsp_serial_per_sec = 14625000;
  bsp_serial_external_clock = false;
  bsp_timer_internal_clock  = true;
  bsp_serial_xon_xoff = false;
  bsp_serial_cts_rts = false;
  bsp_serial_rate = 115200;
  bsp_timer_average_overhead = 2;
  bsp_timer_least_valid = 3;

  /*
   * Initialize default raw exception handlers.
   */
  sc = ppc_exc_initialize(
    PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
    (uint32_t)IntrStack_start,
    IntrStack_end - IntrStack_start
  );
  if (sc != RTEMS_SUCCESSFUL) {
    BSP_panic("cannot initialize exceptions");
  }

  /*
   * Install our own set of exception vectors
   */
  BSP_rtems_irq_mng_init(0);
}
Ejemplo n.º 4
0
/*
 *  bsp_start()
 *
 *  Board-specific initialization code. Called from the generic boot_card()
 *  function defined in rtems/c/src/lib/libbsp/shared/main.c. That function
 *  does some of the board independent initialization. It is called from the
 *  SS555 entry point _start() defined in
 *  rtems/c/src/lib/libbsp/powerpc/ss555/start/start.S
 *
 *  _start() has set up a stack, has zeroed the .bss section, has set up the
 *  .data section from contents stored in ROM, has turned off interrupts,
 *  and placed the processor in the supervisor mode.  boot_card() has left
 *  the processor in that state when bsp_start() was called.
 *
 *  Input parameters: NONE
 *
 *  Output parameters: NONE
 *
 *  Return values: NONE
 */
void bsp_start(void)
{
  ppc_cpu_id_t myCpu;
  ppc_cpu_revision_t myCpuRevision;
  register unsigned char* intrStack;

  /*
   * Get CPU identification dynamically.  Note that the get_ppc_cpu_type()
   * function stores the result in global variables so that it can be used
   * later.
   */
  myCpu 	= get_ppc_cpu_type();
  myCpuRevision = get_ppc_cpu_revision();

  /*
   * Initialize some SPRG registers related to irq handling
   */
  intrStack = (((unsigned char*)&intrStackPtr) - PPC_MINIMUM_STACK_FRAME_SIZE);
  _write_SPRG1((unsigned int)intrStack);

  /*
   * Install our own set of exception vectors
   */
  initialize_exceptions();

  /*
   *  initialize the device driver parameters
   */
  bsp_clicks_per_usec = BSP_CRYSTAL_HZ / 4 / 1000000;
  bsp_clock_speed     = BSP_CLOCK_HZ;	/* for SCI baud rate generator */
  bsp_timer_least_valid      = 0;
  bsp_timer_average_overhead = 0;
  rtems_counter_initialize_converter(BSP_CRYSTAL_HZ / 4);

  /*
   * Initalize RTEMS IRQ system
   */
  BSP_rtems_irq_mng_init(0);
}
Ejemplo n.º 5
0
void bsp_start( void )
{
#ifdef CONF_VPD
  int i;
#endif
#ifdef SHOW_LCR1_REGISTER
  unsigned l1cr;
#endif
#ifdef SHOW_LCR2_REGISTER
  unsigned l2cr;
#endif
#ifdef SHOW_LCR3_REGISTER
  unsigned l3cr;
#endif
  uintptr_t intrStackStart;
  uintptr_t intrStackSize;
  ppc_cpu_id_t myCpu;
  ppc_cpu_revision_t myCpuRevision;
  Triv121PgTbl  pt=0;

  /* Till Straumann: 4/2005
   * Need to map the system registers early, so we can printk...
   * (otherwise we silently die)
   */
  /*
   * Kate Feng : PCI 0 domain memory space, want to leave room for the VME window
   */
  setdbat(2, PCI0_MEM_BASE, PCI0_MEM_BASE, 0x10000000, IO_PAGE);

  /* Till Straumann: 2004
   * map the PCI 0, 1 Domain I/O space, GT64260B registers
   * and the reserved area so that the size is the power of 2.
   * 2009 : map the entire 256 M space
   *
   */
  setdbat(3,PCI0_IO_BASE, PCI0_IO_BASE, 0x10000000, IO_PAGE);


  /*
   * Get CPU identification dynamically. Note that the get_ppc_cpu_type() function
   * store the result in global variables so that it can be used latter...
   */
  myCpu   = get_ppc_cpu_type();
  myCpuRevision = get_ppc_cpu_revision();

#ifdef SHOW_LCR1_REGISTER
  l1cr = get_L1CR();
  printk("Initial L1CR value = %x\n", l1cr);
#endif

  /*
   * Initialize the interrupt related settings.
   */
  intrStackStart = (uintptr_t) __rtems_end;
  intrStackSize = rtems_configuration_get_interrupt_stack_size();

  /*
   * Initialize default raw exception handlers.
   */
  ppc_exc_initialize(
    PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
    intrStackStart,
    intrStackSize
  );

  /*
   * Init MMU block address translation to enable hardware
   * access
   * More PCI1 memory mapping to be done after BSP_pgtbl_activate.
   */
  printk("-----------------------------------------\n");
  printk("Welcome to %s on MVME5500-0163\n", _RTEMS_version );
  printk("-----------------------------------------\n");

  BSP_mem_size         =  probeMemoryEnd();

  /* TODO: calculate the BSP_bus_frequency using the REF_CLK bit
   *       of System Status  register
   */
  /* rtems_bsp_delay_in_bus_cycles are defined in registers.h */
  BSP_bus_frequency      = 133333333;
  BSP_processor_frequency    = 1000000000;
  /* P94 : 7455 clocks the TB/DECR at 1/4 of the system bus clock frequency */
  BSP_time_base_divisor      = 4000;

  /* Maybe not setup yet becuase of the warning message */
  /* Allocate and set up the page table mappings
   * This is only available on >604 CPUs.
   *
   * NOTE: This setup routine may modify the available memory
   *       size. It is essential to call it before
   *       calculating the workspace etc.
   */
  pt = BSP_pgtbl_setup(&BSP_mem_size);
  if (!pt)
     printk("WARNING: unable to setup page tables.\n");

  printk("Now BSP_mem_size = 0x%x\n",BSP_mem_size);

  /* P94 : 7455 TB/DECR is clocked by the system bus clock frequency */

  bsp_clicks_per_usec    = BSP_bus_frequency/(BSP_time_base_divisor * 1000);

  /*
   * Initalize RTEMS IRQ system
   */
   BSP_rtems_irq_mng_init(0);

#ifdef SHOW_LCR2_REGISTER
  l2cr = get_L2CR();
  printk("Initial L2CR value = %x\n", l2cr);
#endif

#ifdef SHOW_LCR3_REGISTER
  /* L3CR needs DEC int. handler installed for bsp_delay()*/
  l3cr = get_L3CR();
  printk("Initial L3CR value = %x\n", l3cr);
#endif


  /* Activate the page table mappings only after
   * initializing interrupts because the irq_mng_init()
   * routine needs to modify the text
   */
  if (pt) {
#ifdef SHOW_MORE_INIT_SETTINGS
    printk("Page table setup finished; will activate it NOW...\n");
#endif
    BSP_pgtbl_activate(pt);
  }
  /* Read Configuration Vital Product Data (VPD) */
  if ( I2Cread_eeprom(0xa8, 4,2, &ConfVPD_buff[0], 150))
     printk("I2Cread_eeprom() error \n");
  else {
#ifdef CONF_VPD
    printk("\n");
    for (i=0; i<150; i++) {
      printk("%2x ", ConfVPD_buff[i]);
      if ((i % 20)==0 ) printk("\n");
    }
    printk("\n");
#endif
  }

  /*
   * PCI 1 domain memory space
   */
  setdbat(1, PCI1_MEM_BASE, PCI1_MEM_BASE, 0x10000000, IO_PAGE);


#ifdef SHOW_MORE_INIT_SETTINGS
  printk("Going to start PCI buses scanning and initialization\n");
#endif
  pci_initialize();
#ifdef SHOW_MORE_INIT_SETTINGS
  printk("Number of PCI buses found is : %d\n", pci_bus_count());
#endif

  /* Install our own exception handler (needs PCI) */
  globalExceptHdl = BSP_exceptionHandler;

  /* clear hostbridge errors. MCP signal is not used on the MVME5500
   * PCI config space scanning code will trip otherwise :-(
   */
  _BSP_clear_hostbridge_errors(0, 1 /*quiet*/);

#ifdef SHOW_MORE_INIT_SETTINGS
  printk("MSR %x \n", _read_MSR());
  printk("Exit from bspstart\n");
#endif

}
Ejemplo n.º 6
0
void bsp_start( void )
{
  rtems_status_code sc = RTEMS_SUCCESSFUL;
#if !defined(mvme2100)
  unsigned l2cr;
#endif
  uintptr_t intrStackStart;
  uintptr_t intrStackSize;
  ppc_cpu_id_t myCpu;
  ppc_cpu_revision_t myCpuRevision;
  prep_t boardManufacturer;
  motorolaBoard myBoard;
  Triv121PgTbl	pt=0;

  /*
   * Get CPU identification dynamically. Note that the get_ppc_cpu_type()
   * function store the result in global variables so that it can be used
   * later...
   */
  myCpu 	= get_ppc_cpu_type();
  myCpuRevision = get_ppc_cpu_revision();

  /*
   * Init MMU block address translation to enable hardware access
   */

#if !defined(mvme2100)
  /*
   * PC legacy IO space used for inb/outb and all PC compatible hardware
   */
  setdbat(1, _IO_BASE, _IO_BASE, 0x10000000, IO_PAGE);
#endif

  /*
   * PCI devices memory area. Needed to access OpenPIC features
   * provided by the Raven
   *
   * T. Straumann: give more PCI address space
   */
  setdbat(2, PCI_MEM_BASE+PCI_MEM_WIN0, PCI_MEM_BASE+PCI_MEM_WIN0, 0x10000000, IO_PAGE);

  /*
   * Must have acces to open pic PCI ACK registers provided by the RAVEN
   */
  setdbat(3, 0xf0000000, 0xf0000000, 0x10000000, IO_PAGE);

#if defined(mvme2100)
  /* Need 0xfec00000 mapped for this */
  EUMBBAR = get_eumbbar();
#endif

  /*
   * enables L1 Cache. Note that the L1_caches_enables() codes checks for
   * relevant CPU type so that the reason why there is no use of myCpu...
   */
  L1_caches_enables();

#if !defined(mvme2100)
  /*
   * Enable L2 Cache. Note that the set_L2CR(L2CR) codes checks for
   * relevant CPU type (mpc750)...
   */
  l2cr = get_L2CR();
#ifdef SHOW_LCR2_REGISTER
  printk("Initial L2CR value = %x\n", l2cr);
#endif
  if ( (! (l2cr & 0x80000000)) && ((int) l2cr == -1))
    set_L2CR(0xb9A14000);
#endif

  /*
   * Initialize the interrupt related settings.
   */
  intrStackStart = (uintptr_t) __rtems_end;
  intrStackSize = rtems_configuration_get_interrupt_stack_size();

  /*
   * Initialize default raw exception handlers.
   */
  sc = ppc_exc_initialize(
    PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
    intrStackStart,
    intrStackSize
  );
  if (sc != RTEMS_SUCCESSFUL) {
    BSP_panic("cannot initialize exceptions");
  }

  select_console(CONSOLE_LOG);

  /*
   * We check that the keyboard is present and immediately
   * select the serial console if not.
   */
#if defined(BSP_KBD_IOBASE)
  { int err;
    err = kbdreset();
    if (err) select_console(CONSOLE_SERIAL);
  }
#else
  select_console(CONSOLE_SERIAL);
#endif

  boardManufacturer   =  checkPrepBoardType(&residualCopy);
  if (boardManufacturer != PREP_Motorola) {
    printk("Unsupported hardware vendor\n");
    while (1);
  }
  myBoard = getMotorolaBoard();

  printk("-----------------------------------------\n");
  printk("Welcome to %s on %s\n", _RTEMS_version,
                                    motorolaBoardToString(myBoard));
  printk("-----------------------------------------\n");
#ifdef SHOW_MORE_INIT_SETTINGS
  printk("Residuals are located at %x\n", (unsigned) &residualCopy);
  printk("Additionnal boot options are %s\n", loaderParam);
  printk("Initial system stack at %x\n",stack);
  printk("Software IRQ stack starts at %x with size %u\n", intrStackStart, intrStackSize);
  printk("-----------------------------------------\n");
#endif

#ifdef TEST_RETURN_TO_PPCBUG
  printk("Hit <Enter> to return to PPCBUG monitor\n");
  printk("When Finished hit GO. It should print <Back from monitor>\n");
  debug_getc();
  _return_to_ppcbug();
  printk("Back from monitor\n");
  _return_to_ppcbug();
#endif /* TEST_RETURN_TO_PPCBUG  */

#ifdef SHOW_MORE_INIT_SETTINGS
  printk("Going to start PCI buses scanning and initialization\n");
#endif

  pci_initialize();
  {
    const struct _int_map *bspmap  = motorolaIntMap(currentBoard);
    if( bspmap ) {
       printk("pci : Configuring interrupt routing for '%s'\n",
          motorolaBoardToString(currentBoard));
       FixupPCI(bspmap, motorolaIntSwizzle(currentBoard));
    }
    else
       printk("pci : Interrupt routing not available for this bsp\n");
 }

#ifdef SHOW_MORE_INIT_SETTINGS
  printk("Number of PCI buses found is : %d\n", pci_bus_count());
#endif
#ifdef TEST_RAW_EXCEPTION_CODE
  printk("Testing exception handling Part 1\n");
  /*
   * Cause a software exception
   */
  __asm__ __volatile ("sc");
  /*
   * Check we can still catch exceptions and return coorectly.
   */
  printk("Testing exception handling Part 2\n");
  __asm__ __volatile ("sc");

  /*
   * Somehow doing the above seems to clobber SPRG0 on the mvme2100.  The
   * interrupt disable mask is stored in SPRG0. Is this a problem?
   */
  ppc_interrupt_set_disable_mask( PPC_INTERRUPT_DISABLE_MASK_DEFAULT);

#endif

/* See above */

  BSP_mem_size            = residualCopy.TotalMemory;
  BSP_bus_frequency       = residualCopy.VitalProductData.ProcessorBusHz;
  BSP_processor_frequency = residualCopy.VitalProductData.ProcessorHz;
  BSP_time_base_divisor   = (residualCopy.VitalProductData.TimeBaseDivisor?
                    residualCopy.VitalProductData.TimeBaseDivisor : 4000);

  /* clear hostbridge errors but leave MCP disabled -
   * PCI config space scanning code will trip otherwise :-(
   */
  _BSP_clear_hostbridge_errors(0 /* enableMCP */, 0/*quiet*/);

  /* Allocate and set up the page table mappings
   * This is only available on >604 CPUs.
   *
   * NOTE: This setup routine may modify the available memory
   *       size. It is essential to call it before
   *       calculating the workspace etc.
   */
  pt = BSP_pgtbl_setup(&BSP_mem_size);

  if (!pt || TRIV121_MAP_SUCCESS != triv121PgTblMap(
            pt, TRIV121_121_VSID, 0xfeff0000, 1,
            TRIV121_ATTR_IO_PAGE, TRIV121_PP_RW_PAGE)) {
	printk("WARNING: unable to setup page tables VME "
               "bridge must share PCI space\n");
  }

  /*
   *  initialize the device driver parameters
   */
  bsp_clicks_per_usec 	 = BSP_bus_frequency/(BSP_time_base_divisor * 1000);

  /*
   * Initalize RTEMS IRQ system
   */
  BSP_rtems_irq_mng_init(0);

  /* Activate the page table mappings only after
   * initializing interrupts because the irq_mng_init()
   * routine needs to modify the text
   */
  if (pt) {
#ifdef  SHOW_MORE_INIT_SETTINGS
    printk("Page table setup finished; will activate it NOW...\n");
#endif
    BSP_pgtbl_activate(pt);
    /* finally, switch off DBAT3 */
    setdbat(3, 0, 0, 0, 0);
  }

#if defined(DEBUG_BATS)
  ShowBATS();
#endif

#ifdef SHOW_MORE_INIT_SETTINGS
  printk("Exit from bspstart\n");
#endif
}
Ejemplo n.º 7
0
/*
 *  bsp_start()
 *
 *  Board-specific initialization code. Called from the generic boot_card()
 *  function defined in rtems/c/src/lib/libbsp/shared/main.c. That function
 *  does some of the board independent initialization. It is called from the
 *  SS555 entry point _start() defined in
 *  rtems/c/src/lib/libbsp/powerpc/ss555/startup/start.S
 *
 *  _start() has set up a stack, has zeroed the .bss section, has set up the
 *  .data section from contents stored in ROM, has turned off interrupts,
 *  and placed the processor in the supervisor mode.  boot_card() has left
 *  the processor in that state when bsp_start() was called.
 *
 *  Input parameters: NONE
 *
 *  Output parameters: NONE
 *
 *  Return values: NONE
 */
void bsp_start(void)
{
  extern char _WorkspaceBase[];

  ppc_cpu_id_t myCpu;
  ppc_cpu_revision_t myCpuRevision;
  register unsigned char* intrStack;

  /*
   * Get CPU identification dynamically.  Note that the get_ppc_cpu_type()
   * function stores the result in global variables so that it can be used
   * later.
   */
  myCpu 	= get_ppc_cpu_type();
  myCpuRevision = get_ppc_cpu_revision();

  /*
   * Initialize some SPRG registers related to irq handling
   */
  intrStack = (((unsigned char*)&intrStackPtr) - PPC_MINIMUM_STACK_FRAME_SIZE);
  _write_SPRG1((unsigned int)intrStack);
  /* signal them that we have fixed PR288 - eventually, this should go away */
  _write_SPRG0(PPC_BSP_HAS_FIXED_PR288);

  /*
   * Install our own set of exception vectors
   */
  initialize_exceptions();

  /*
   *  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.
   *
   *  In this case, the memory is not malloc'ed.  It is just
   *  "pulled from the air".
   */
  BSP_Configuration.work_space_start = _WorkspaceBase;

  /*
   *  initialize the CPU table for this BSP
   */
  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
  Cpu_table.postdriver_hook = bsp_postdriver_hook;
  if( Cpu_table.interrupt_stack_size < 4 * 1024 )
      Cpu_table.interrupt_stack_size = 4 * 1024;

  Cpu_table.clicks_per_usec = BSP_CRYSTAL_HZ / 4 / 1000000;
  Cpu_table.clock_speed = BSP_CLOCK_HZ;	/* for SCI baud rate generator */

  /*
   * Call this in case we use TERMIOS for console I/O
   */
  m5xx_uart_reserve_resources( &BSP_Configuration );

  /*
   * Initalize RTEMS IRQ system
   */
  BSP_rtems_irq_mng_init(0);
}
Ejemplo n.º 8
0
void bsp_start(void)
{
  extern void *_WorkspaceBase;
  ppc_cpu_id_t myCpu;
  ppc_cpu_revision_t myCpuRevision;
  register unsigned char* intrStack;

  /* Set MPC8260ADS board LEDS and Uart enable lines */
  _BSP_GPLED0_off();
  _BSP_GPLED1_off();
  _BSP_Uart1_enable();
  _BSP_Uart2_enable();

  /*
   * Get CPU identification dynamically. Note that the get_ppc_cpu_type() function
   * store the result in global variables so that it can be used latter...
   */
  myCpu 	= get_ppc_cpu_type();
  myCpuRevision = get_ppc_cpu_revision();

  cpu_init();

/*
  mmu_init();
*/
  /*
   * Initialize some SPRG registers related to irq handling
   */

  intrStack = (((unsigned char*)&intrStackPtr) - PPC_MINIMUM_STACK_FRAME_SIZE);
  _write_SPRG1((unsigned int)intrStack);
  /* signal that we have fixed PR288 - eventually, this should go away */
  _write_SPRG0(PPC_BSP_HAS_FIXED_PR288);

/*
  printk( "About to call initialize_exceptions\n" );
*/
   /*
    * Install our own set of exception vectors
    */

   initialize_exceptions();

/*
  mmu_init();
*/

  /*
   * Enable instruction and data caches. Do not force writethrough mode.
   */
#if INSTRUCTION_CACHE_ENABLE
  rtems_cache_enable_instruction();
#endif
#if DATA_CACHE_ENABLE
  rtems_cache_enable_data();
#endif

  /*
   *  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".
   */

  BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;

/*
  BSP_Configuration.microseconds_per_tick  = 1000;
*/

  /*
   *  initialize the CPU table for this BSP
   */

  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
  Cpu_table.postdriver_hook = bsp_postdriver_hook;
  if( Cpu_table.interrupt_stack_size < 4*1024 )
    Cpu_table.interrupt_stack_size   = 4 * 1024;

  Cpu_table.clicks_per_usec 	   = 10;  /* for 40MHz extclk */
  Cpu_table.serial_per_sec  	   = 40000000;
  Cpu_table.serial_external_clock  = 0;
  Cpu_table.serial_xon_xoff 	   = 0;
  Cpu_table.serial_cts_rts 	   = 0;
  Cpu_table.serial_rate 	   = 9600;
  Cpu_table.timer_average_overhead = 3;
  Cpu_table.timer_least_valid 	   = 3;
  Cpu_table.clock_speed 	   = 40000000;

#ifdef REV_0_2
  /* set up some board specific registers */
  m8260.siumcr &= 0xF3FFFFFF;		/* set TBEN ** BUG FIX ** */
  m8260.siumcr |= 0x08000000;
#endif

  /* use BRG1 to generate 32kHz timebase */
/*
  m8260.brgc1 = M8260_BRG_EN + (uint32_t)(((uint16_t)((40016384)/(32768)) - 1) << 1) + 0;
*/

  /*
   * Initalize RTEMS IRQ system
   */
  BSP_rtems_irq_mng_init(0);

  /*
   * Call this in case we use TERMIOS for console I/O
   */

  m8xx_uart_reserve_resources(&BSP_Configuration);

/*
  rtems_termios_initialize();
*/
#ifdef SHOW_MORE_INIT_SETTINGS
  printk("Exit from bspstart\n");
#endif

}