source: rtems/c/src/lib/libbsp/m68k/dmv152/startup/bspstart.c @ c2e9632

4.104.114.84.95
Last change on this file since c2e9632 was 0f458a3, checked in by Ralf Corsepius <ralf.corsepius@…>, on Mar 31, 2004 at 4:38:23 AM

2004-03-31 Ralf Corsepius <ralf_corsepius@…>

  • clock/ckinit.c, console/console.c, include/bsp.h, spurious/spinit.c, startup/bspstart.c, startup/vmeintr.c, timer/timer.c: Convert to using c99 fixed size types.
  • Property mode set to 100644
File size: 2.7 KB
Line 
1/*
2 *  This routine starts the application.  It includes application,
3 *  board, and monitor specific initialization and configuration.
4 *  The generic CPU dependent initialization has been performed
5 *  before this routine is invoked.
6 *
7 *  COPYRIGHT (c) 1989-1999.
8 *  On-Line Applications Research Corporation (OAR).
9 *
10 *  The license and distribution terms for this file may be
11 *  found in the file LICENSE in this distribution or at
12 *  http://www.rtems.com/license/LICENSE.
13 *
14 *  $Id$
15 */
16
17#include <string.h>
18
19#include <bsp.h>
20#include <rtems/libio.h>
21#include <rtems/libcsupport.h>
22 
23/*
24 *  The original table from the application and our copy of it with
25 *  some changes.
26 */
27
28extern rtems_configuration_table  Configuration;
29rtems_configuration_table         BSP_Configuration;
30
31rtems_cpu_table Cpu_table;
32
33char *rtems_progname;
34
35/*
36 *  Use the shared implementations of the following routines
37 */
38 
39void bsp_postdriver_hook(void);
40void bsp_libc_init( void *, uint32_t, int );
41void bsp_pretasking_hook(void);               /* m68k version */
42 
43/*
44 *  bsp_start
45 *
46 *  This routine does the bulk of the system initialization.
47 */
48
49void bsp_start( void )
50{
51  m68k_isr_entry *monitors_vector_table;
52  int             index;
53  void           *vbr;
54  extern void    *_WorkspaceBase;
55  extern void    *_RamSize;
56  extern unsigned long _M68k_Ramsize;
57
58  _M68k_Ramsize = (unsigned long)&_RamSize;             /* RAM size set in linker script */
59
60  monitors_vector_table = (m68k_isr_entry *)0;   /* Monitor Vectors are at 0 */
61  m68k_set_vbr( monitors_vector_table );
62
63  for ( index=2 ; index<=255 ; index++ )
64    M68Kvec[ index ] = monitors_vector_table[ 32 ];
65
66  M68Kvec[  2 ] = monitors_vector_table[  2 ];   /* bus error vector */
67  M68Kvec[  4 ] = monitors_vector_table[  4 ];   /* breakpoints vector */
68  M68Kvec[  9 ] = monitors_vector_table[  9 ];   /* trace vector */
69
70  /*
71   *  Uncommenting this seems to confuse/break the monitor on this board.
72   *  It probably assumes the vector table is at 0.
73   */
74
75  /* m68k_set_vbr( &M68Kvec ); */
76
77  /*
78   *  Adjust the VMEbus mode to round-robin.
79   */
80
81  /*
82   *  This is only apparent with the shared memory driver which has not
83   *  yet been supported on this target.
84   */
85
86  rtems_cache_enable_instruction();
87
88  /*
89   *  we only use a hook to get the C library initialized.
90   */
91
92  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
93  Cpu_table.postdriver_hook = bsp_postdriver_hook;
94  Cpu_table.do_zero_of_workspace = TRUE;
95  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
96
97  m68k_get_vbr( vbr );
98  Cpu_table.interrupt_vector_table = vbr;
99
100  BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
101
102  /* Clock_exit is done as an atexit() function */
103}
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