source: rtems/c/src/lib/libbsp/m68k/mvme136/startup/bspstart.c @ 5e77d129

4.104.114.84.95
Last change on this file since 5e77d129 was 5e77d129, checked in by Joel Sherrill <joel.sherrill@…>, on Jun 14, 2000 at 8:32:44 PM

Patch from John Cotton <john.cotton@…> to correct cache
routine naming to follow RTEMS package/object.method rule.
This patch also eliminated calls to the obsolete routine
m68k_enable_caching.

  • 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.OARcorp.com/rtems/license.html.
13 *
14 *  $Id$
15 */
16
17#include <bsp.h>
18#include <rtems/libio.h>
19
20#include <libcsupport.h>
21#include <zilog/z8036.h>
22
23#include <string.h>
24
25/*
26 *  The original table from the application and our copy of it with
27 *  some changes.
28 */
29
30extern rtems_configuration_table  Configuration;
31rtems_configuration_table         BSP_Configuration;
32
33rtems_cpu_table Cpu_table;
34
35char *rtems_progname;
36
37/*
38 *  Use the shared implementations of the following routines
39 */
40 
41void bsp_postdriver_hook(void);
42void bsp_libc_init( void *, unsigned32, int );
43void bsp_pretasking_hook(void);               /* m68k version */
44
45/*
46 *  bsp_start
47 *
48 *  This routine does the bulk of the system initialization.
49 */
50
51void bsp_start( void )
52{
53  m68k_isr_entry *monitors_vector_table;
54  int             index;
55  extern void          *_WorkspaceBase;
56  extern void          *_RamSize;
57  extern unsigned long  _M68k_Ramsize;
58
59  _M68k_Ramsize = (unsigned long)&_RamSize;             /* RAM size set in linker script */
60
61  monitors_vector_table = (m68k_isr_entry *)0;   /* 135Bug Vectors are at 0 */
62  m68k_set_vbr( monitors_vector_table );
63
64  for ( index=2 ; index<=255 ; index++ )
65    M68Kvec[ index ] = monitors_vector_table[ 32 ];
66
67  M68Kvec[  2 ] = monitors_vector_table[  2 ];   /* bus error vector */
68  M68Kvec[  4 ] = monitors_vector_table[  4 ];   /* breakpoints vector */
69  M68Kvec[  9 ] = monitors_vector_table[  9 ];   /* trace vector */
70  M68Kvec[ 47 ] = monitors_vector_table[ 47 ];   /* system call vector */
71
72  m68k_set_vbr( &M68Kvec );
73
74  (*(rtems_unsigned8 *)0xfffb0067) = 0x7f; /* make VME access round-robin */
75
76  rtems_cache_enable_instruction();
77
78  /*
79   *  we only use a hook to get the C library initialized.
80   */
81
82  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
83  Cpu_table.postdriver_hook = bsp_postdriver_hook;
84  Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec;
85  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
86
87  BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
88}
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