source: rtems/c/src/lib/libbsp/i386/pc386/startup/bspstart.c @ ef37cb6

4.104.11
Last change on this file since ef37cb6 was ef37cb6, checked in by Joel Sherrill <joel.sherrill@…>, on Sep 18, 2008 at 8:41:09 PM

2008-09-18 Joel Sherrill <joel.sherrill@…>

  • Makefile.am, configure.ac, startup/bspstart.c, startup/linkcmds: Add bsp_get_work_area() implementation and use more of the BSP Initialization Framework.
  • startup/bspgetworkarea.c: New file.
  • Property mode set to 100644
File size: 2.7 KB
Line 
1/*-------------------------------------------------------------------------+
2| This file contains the PC386 BSP startup package. It includes application,
3| board, and monitor specific initialization and configuration. The generic CPU
4| dependent initialization has been performed before this routine is invoked.
5+--------------------------------------------------------------------------+
6| (C) Copyright 1997 -
7| - NavIST Group - Real-Time Distributed Systems and Industrial Automation
8|
9| http://pandora.ist.utl.pt
10|
11| Instituto Superior Tecnico * Lisboa * PORTUGAL
12+--------------------------------------------------------------------------+
13| Disclaimer:
14|
15| This file is provided "AS IS" without warranty of any kind, either
16| expressed or implied.
17+--------------------------------------------------------------------------+
18| This code is based on:
19|   bspstart.c,v 1.8 1996/05/28 13:12:40 joel Exp - go32 BSP
20| With the following copyright notice:
21| **************************************************************************
22| *  COPYRIGHT (c) 1989-2008.
23| *  On-Line Applications Research Corporation (OAR).
24| *
25| *  The license and distribution terms for this file may be
26| *  found in found in the file LICENSE in this distribution or at
27| *  http://www.rtems.com/license/LICENSE.
28| **************************************************************************
29|
30|  $Id$
31+--------------------------------------------------------------------------*/
32
33#include <bsp.h>
34#include <rtems/pci.h>
35#include <libcpu/cpuModel.h>
36
37/*
38 *  External routines
39 */
40extern void Calibrate_loop_1ms(void);
41extern void rtems_irq_mngt_init(void);
42extern void bsp_size_memory(void);
43
44/*-------------------------------------------------------------------------+
45|         Function: bsp_start
46|      Description: Called before main is invoked.
47| Global Variables: None.
48|        Arguments: None.
49|          Returns: Nothing.
50+--------------------------------------------------------------------------*/
51void bsp_start_default( void )
52{
53  int pci_init_retval;
54
55  /*
56   *  We need to determine how much memory there is in the system.
57   */
58  bsp_size_memory();
59
60  /*
61   * Calibrate variable for 1ms-loop (see timer.c)
62   */
63  Calibrate_loop_1ms();
64
65  /*
66   * Init rtems interrupt management
67   */
68  rtems_irq_mngt_init();
69  /*
70   * Init rtems exceptions management
71   */
72  rtems_exception_init_mngt();
73
74  /*
75   * init PCI Bios interface...
76   */
77  pci_init_retval = pci_initialize();
78  if (pci_init_retval != PCIB_ERR_SUCCESS) {
79      printk("PCI bus: could not initialize PCI BIOS interface\n");
80  }
81} /* bsp_start */
82
83/*
84 *  By making this a weak alias for bsp_start_default, a brave soul
85 *  can override the actual bsp_start routine used.
86 */
87
88void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default")));
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