source: rtems/c/src/lib/libbsp/m68k/mvme162/startup/bspstart.c @ e4c07444

4.104.114.84.95
Last change on this file since e4c07444 was b8c9883, checked in by Joel Sherrill <joel.sherrill@…>, on Jan 13, 2000 at 8:45:07 PM

All m68k BSPs now build with new ELF style linkcmds.

  • Property mode set to 100644
File size: 2.8 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.OARcorp.com/rtems/license.html.
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 <bsp.h>
25#include <rtems/libio.h>
26#include <page_table.h>
27 
28#include <libcsupport.h>
29 
30#include <string.h>
31 
32/*
33 *  The original table from the application and our copy of it with
34 *  some changes.
35 */
36
37extern rtems_configuration_table  Configuration;
38rtems_configuration_table  BSP_Configuration;
39
40rtems_cpu_table Cpu_table;
41
42char *rtems_progname;
43
44/*
45 *  Use the shared implementations of the following routines
46 */
47 
48void bsp_postdriver_hook(void);
49void bsp_libc_init( void *, unsigned32, int );
50void bsp_pretasking_hook(void);               /* m68k version */
51
52/*
53 *  bsp_start
54 *
55 *  This routine does the bulk of the system initialization.
56 */
57
58void bsp_start( void )
59{
60  m68k_isr_entry *monitors_vector_table;
61  int             index;
62  extern void    *_WorkspaceBase;
63
64  /*
65   *  162Bug Vectors are at 0xFFE00000
66   *  162Bug Vectors on LX are at 0x00000000
67   */
68
69#if defined(mvme162lx)
70  monitors_vector_table = (m68k_isr_entry *)0x00000000;
71#else
72  monitors_vector_table = (m68k_isr_entry *)0xFFE00000;
73#endif
74
75  m68k_set_vbr( monitors_vector_table );
76
77  for ( index=2 ; index<=255 ; index++ )
78    M68Kvec[ index ] = monitors_vector_table[ 32 ];
79
80  M68Kvec[  2 ] = monitors_vector_table[  2 ];   /* bus error vector */
81  M68Kvec[  4 ] = monitors_vector_table[  4 ];   /* breakpoints vector */
82  M68Kvec[  9 ] = monitors_vector_table[  9 ];   /* trace vector */
83  M68Kvec[ 47 ] = monitors_vector_table[ 47 ];   /* system call vector */
84
85  m68k_set_vbr( &M68Kvec );
86
87  /*
88   *  You may wish to make the VME arbitration round-robin here, currently
89   *  we leave it as it is.
90   */
91
92  /* set the Interrupt Base Vectors */
93
94  lcsr->vector_base = (VBR0 << 28) | (VBR1 << 24);
95
96  page_table_init();
97
98  /*
99   *  we only use a hook to get the C library initialized.
100   */
101
102  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
103  Cpu_table.postdriver_hook = bsp_postdriver_hook;
104  Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
105  Cpu_table.interrupt_stack_size = 4096;
106
107  BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
108}
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