source: rtems/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c @ df49c60

4.104.114.84.95
Last change on this file since df49c60 was df49c60, checked in by Joel Sherrill <joel.sherrill@…>, on Jun 12, 2000 at 3:00:15 PM

Merged from 4.5.0-beta3a

  • Property mode set to 100644
File size: 2.3 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 
22#include <string.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  extern void          *_WorkspaceBase;
53  extern void          *_RamSize;
54  extern void          *_RamSize;
55  extern unsigned long  _M68k_Ramsize;
56
57  _M68k_Ramsize = (unsigned long)&_RamSize;             /* RAM size set in linker script */
58
59  /*
60   *  Allocate the memory for the RTEMS Work Space.  This can come from
61   *  a variety of places: hard coded address, malloc'ed from outside
62   *  RTEMS world (e.g. simulator or primitive memory manager), or (as
63   *  typically done by stock BSPs) by subtracting the required amount
64   *  of work space from the last physical address on the CPU board.
65   */
66#if 0
67  Cpu_table.interrupt_vector_table = (mc68000_isr *) 0/*&M68Kvec*/;
68#endif
69
70  /*
71   *  Need to "allocate" the memory for the RTEMS Workspace and
72   *  tell the RTEMS configuration where it is.  This memory is
73   *  not malloc'ed.  It is just "pulled from the air".
74   */
75
76  BSP_Configuration.work_space_start = (void *) &_WorkspaceBase;
77
78  /*
79   *  initialize the CPU table for this BSP
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_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
85}
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