source: rtems/c/src/lib/libbsp/m68k/mvme136/startup/bspstart.c @ 9977ac6

4.104.114.84.95
Last change on this file since 9977ac6 was 9977ac6, checked in by Joel Sherrill <joel.sherrill@…>, on Sep 4, 2003 at 6:51:59 PM

2003-09-04 Joel Sherrill <joel@…>

  • clock/ckinit.c, console/console.c, include/bsp.h, include/coverhd.h, shmsupp/addrconv.c, shmsupp/getcfg.c, shmsupp/lock.c, shmsupp/mpisr.c, startup/bspclean.c, startup/bspstart.c, startup/linkcmds, timer/timer.c, timer/timerisr.S: URL for license changed.
  • Property mode set to 100644
File size: 2.4 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#include <zilog/z8036.h>
23
24/*
25 *  The original table from the application and our copy of it with
26 *  some changes.
27 */
28
29extern rtems_configuration_table  Configuration;
30rtems_configuration_table         BSP_Configuration;
31
32rtems_cpu_table Cpu_table;
33
34char *rtems_progname;
35
36/*
37 *  Use the shared implementations of the following routines
38 */
39 
40void bsp_postdriver_hook(void);
41void bsp_libc_init( void *, unsigned32, int );
42void bsp_pretasking_hook(void);               /* m68k version */
43
44/*
45 *  bsp_start
46 *
47 *  This routine does the bulk of the system initialization.
48 */
49
50void bsp_start( void )
51{
52  m68k_isr_entry *monitors_vector_table;
53  int             index;
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;   /* 135Bug 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  M68Kvec[ 47 ] = monitors_vector_table[ 47 ];   /* system call vector */
70
71  m68k_set_vbr( &M68Kvec );
72
73  (*(rtems_unsigned8 *)0xfffb0067) = 0x7f; /* make VME access round-robin */
74
75  rtems_cache_enable_instruction();
76
77  /*
78   *  we only use a hook to get the C library initialized.
79   */
80
81  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
82  Cpu_table.postdriver_hook = bsp_postdriver_hook;
83  Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
84  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
85
86  BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
87}
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