source: rtems/c/src/lib/libbsp/powerpc/virtex/startup/bspstart.c @ 53dc697

4.11
Last change on this file since 53dc697 was 53dc697, checked in by Sebastian Huber <sebastian.huber@…>, on Jun 18, 2013 at 2:42:25 PM

bsp/virtex: Delete BSP_ask_for_reset and BSP_panic

  • Property mode set to 100644
File size: 3.5 KB
Line 
1/*  bsp_start()
2 *
3 *  This routine starts the application.  It includes application,
4 *  board, and monitor specific initialization and configuration.
5 *  The generic CPU dependent initialization has been performed
6 *  before this routine is invoked.
7 *
8 *  INPUT:  NONE
9 *
10 *  OUTPUT: NONE
11 *
12 *  Author:     Thomas Doerfler <td@imd.m.isar.de>
13 *              IMD Ingenieurbuero fuer Microcomputertechnik
14 *
15 *  COPYRIGHT (c) 1998 by IMD
16 *
17 *  Changes from IMD are covered by the original distributions terms.
18 *  This file has been derived from the papyrus BSP:
19 *
20 *  Author:     Andrew Bray <andy@i-cubed.co.uk>
21 *
22 *  COPYRIGHT (c) 1995 by i-cubed ltd.
23 *
24 *  To anyone who acknowledges that this file is provided "AS IS"
25 *  without any express or implied warranty:
26 *      permission to use, copy, modify, and distribute this file
27 *      for any purpose is hereby granted without fee, provided that
28 *      the above copyright notice and this notice appears in all
29 *      copies, and that the name of i-cubed limited not be used in
30 *      advertising or publicity pertaining to distribution of the
31 *      software without specific, written prior permission.
32 *      i-cubed limited makes no representations about the suitability
33 *      of this software for any purpose.
34 *
35 *  Modifications for spooling console driver and control of memory layout
36 *  with linker command file by
37 *              Thomas Doerfler <td@imd.m.isar.de>
38 *  for these modifications:
39 *  COPYRIGHT (c) 1997 by IMD, Puchheim, Germany.
40 *
41 *  To anyone who acknowledges that this file is provided "AS IS"
42 *  without any express or implied warranty:
43 *      permission to use, copy, modify, and distribute this file
44 *      for any purpose is hereby granted without fee, provided that
45 *      the above copyright notice and this notice appears in all
46 *      copies. IMD makes no representations about the suitability
47 *      of this software for any purpose.
48 *
49 *  Derived from c/src/lib/libbsp/no_cpu/no_bsp/startup/bspstart.c:
50 *
51 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
52 *  On-Line Applications Research Corporation (OAR).
53 *
54 *  Modifications for PPC405GP by Dennis Ehlin
55 */
56
57#include <bsp.h>
58#include <bsp/irq.h>
59#include <bsp/irq-generic.h>
60#include <bsp/bootcard.h>
61#include <bsp/linker-symbols.h>
62
63#include <libcpu/powerpc-utility.h>
64
65#include RTEMS_XPARAMETERS_H
66
67/* Symbols defined in linker command file */
68LINKER_SYMBOL(virtex_exc_vector_base);
69
70/*
71 *  Driver configuration parameters
72 */
73uint32_t   bsp_clicks_per_usec;
74
75/*
76 *  bsp_start
77 *
78 *  This routine does the bulk of the system initialization.
79 */
80void bsp_start( void )
81{
82  /*
83   * Get CPU identification dynamically. Note that the get_ppc_cpu_type()
84   * function store the result in global variables
85   * so that it can be used latter...
86   */
87  get_ppc_cpu_type();
88  get_ppc_cpu_revision();
89
90  /*
91   *  initialize the device driver parameters
92   */
93
94  /* timebase register ticks/microsecond */
95  bsp_clicks_per_usec = (250000000 / 1000000);
96
97  /*
98   * Initialize default raw exception handlers.
99   */
100  ppc_exc_initialize_with_vector_base(
101    PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
102    (uintptr_t) bsp_section_work_begin,
103    rtems_configuration_get_interrupt_stack_size(),
104    virtex_exc_vector_base
105  );
106  __asm__ volatile ("mtevpr %0" : : "r" (virtex_exc_vector_base));
107
108  bsp_interrupt_initialize();
109}
110
111void _BSP_Fatal_error(unsigned int v)
112{
113  rtems_interrupt_level level;
114
115  rtems_interrupt_disable(level);
116  (void) level;
117
118  while (true) {
119    /* Do nothing */
120  }
121}
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