source: rtems/c/src/lib/libbsp/m68k/mvme162/startup/bspstart.c @ 629e12a

4.104.114.84.9
Last change on this file since 629e12a was 629e12a, checked in by Ralf Corsepius <ralf.corsepius@…>, on Mar 31, 2004 at 4:38:35 AM

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

  • clock/ckinit.c, startup/bspstart.c, timer/timer.c: Convert to using c99 fixed size types.
  • Property mode set to 100644
File size: 3.0 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 *  Modifications of respective RTEMS file: COPYRIGHT (c) 1994.
15 *  EISCAT Scientific Association. M.Savitski
16 *
17 *  This material is a part of the MVME162 Board Support Package
18 *  for the RTEMS executive. Its licensing policies are those of the
19 *  RTEMS above.
20 *
21 *  $Id$
22 */
23
24#include <string.h>
25
26#include <bsp.h>
27#include <rtems/libio.h>
28#include <rtems/libcsupport.h>
29#include <page_table.h>
30 
31/*
32 *  The original table from the application and our copy of it with
33 *  some changes.
34 */
35
36extern rtems_configuration_table  Configuration;
37rtems_configuration_table  BSP_Configuration;
38
39rtems_cpu_table Cpu_table;
40
41char *rtems_progname;
42
43/*
44 *  Use the shared implementations of the following routines
45 */
46 
47void bsp_postdriver_hook(void);
48void bsp_libc_init( void *, uint32_t, int );
49void bsp_pretasking_hook(void);               /* m68k version */
50
51/*
52 *  bsp_start
53 *
54 *  This routine does the bulk of the system initialization.
55 */
56
57void bsp_start( void )
58{
59  m68k_isr_entry       *monitors_vector_table;
60  int                   index;
61  extern void          *_WorkspaceBase;
62  extern void          *_RamSize;
63  extern unsigned long  _M68k_Ramsize;
64
65  _M68k_Ramsize = (unsigned long)&_RamSize;             /* RAM size set in linker script */
66
67  /*
68   *  162Bug Vectors are at 0xFFE00000
69   *  162Bug Vectors on LX are at 0x00000000
70   */
71
72#if defined(mvme162lx)
73  monitors_vector_table = (m68k_isr_entry *)0x00000000;
74#else
75  monitors_vector_table = (m68k_isr_entry *)0xFFE00000;
76#endif
77
78  m68k_set_vbr( monitors_vector_table );
79
80  for ( index=2 ; index<=255 ; index++ )
81    M68Kvec[ index ] = monitors_vector_table[ 32 ];
82
83  M68Kvec[  2 ] = monitors_vector_table[  2 ];   /* bus error vector */
84  M68Kvec[  4 ] = monitors_vector_table[  4 ];   /* breakpoints vector */
85  M68Kvec[  9 ] = monitors_vector_table[  9 ];   /* trace vector */
86  M68Kvec[ 47 ] = monitors_vector_table[ 47 ];   /* system call vector */
87
88  m68k_set_vbr( &M68Kvec );
89
90  /*
91   *  You may wish to make the VME arbitration round-robin here, currently
92   *  we leave it as it is.
93   */
94
95  /* set the Interrupt Base Vectors */
96
97  lcsr->vector_base = (VBR0 << 28) | (VBR1 << 24);
98
99  page_table_init();
100
101  /*
102   *  we only use a hook to get the C library initialized.
103   */
104
105  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
106  Cpu_table.postdriver_hook = bsp_postdriver_hook;
107  Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
108  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
109
110  BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
111}
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