source: rtems/c/src/lib/libbsp/powerpc/virtex/startup/bspstart.c @ ff538bbf

4.11
Last change on this file since ff538bbf was ff538bbf, checked in by Sebastian Huber <sebastian.huber@…>, on Jun 18, 2013 at 2:24:10 PM

bsp/virtex: Delete unused variables

  • Property mode set to 100644
File size: 4.7 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 <string.h>
58#include <fcntl.h>
59
60#include <bsp.h>
61#include <bsp/irq.h>
62#include <bsp/linker-symbols.h>
63#include <rtems/bspIo.h>
64#include <libcpu/cpuIdent.h>
65#include <libcpu/spr.h>
66#include <rtems/powerpc/powerpc.h>
67
68#include RTEMS_XPARAMETERS_H
69#include <stdio.h>
70
71/* Symbols defined in linker command file */
72LINKER_SYMBOL(virtex_exc_vector_base);
73
74/*
75 *  Driver configuration parameters
76 */
77uint32_t   bsp_clicks_per_usec;
78uint32_t   bsp_serial_per_sec;         /* Serial clocks per second */
79bool       bsp_serial_external_clock;
80bool       bsp_serial_xon_xoff;
81bool       bsp_serial_cts_rts;
82uint32_t   bsp_serial_rate;
83uint32_t   bsp_timer_average_overhead; /* Average overhead of timer in ticks */
84uint32_t   bsp_timer_least_valid;      /* Least valid number from timer      */
85bool       bsp_timer_internal_clock;   /* TRUE, when timer runs with CPU clk */
86
87/*      Initialize whatever libc we are using
88 *      called from postdriver hook
89 */
90
91void bsp_XAssertHandler(const char* file, int line);
92
93void bsp_XAssertHandler(const char* file, int line) {
94  printf("\n***\n*** XAssert Failed!  File: %s, Line: %d\n***\n", file, line);
95}
96
97/*
98 *  bsp_start
99 *
100 *  This routine does the bulk of the system initialization.
101 */
102void bsp_start( void )
103{
104  /*
105   * Get CPU identification dynamically. Note that the get_ppc_cpu_type()
106   * function store the result in global variables
107   * so that it can be used latter...
108   */
109  myCpu             = get_ppc_cpu_type();
110  myCpuRevision = get_ppc_cpu_revision();
111
112  /*
113   *  initialize the device driver parameters
114   */
115
116  /* timebase register ticks/microsecond */
117  bsp_clicks_per_usec = (250000000 / 1000000);
118  bsp_serial_per_sec = 14625000;
119  bsp_serial_external_clock = false;
120  bsp_timer_internal_clock  = true;
121  bsp_serial_xon_xoff = false;
122  bsp_serial_cts_rts = false;
123  bsp_serial_rate = 115200;
124  bsp_timer_average_overhead = 2;
125  bsp_timer_least_valid = 3;
126
127  /*
128   * Initialize default raw exception handlers.
129   */
130  ppc_exc_initialize_with_vector_base(
131    PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
132    (uintptr_t) bsp_section_work_begin,
133    rtems_configuration_get_interrupt_stack_size(),
134    virtex_exc_vector_base
135  );
136  __asm__ volatile ("mtevpr %0" : : "r" (virtex_exc_vector_base));
137
138  /*
139   * Install our own set of exception vectors
140   */
141  BSP_rtems_irq_mng_init(0);
142}
143
144void BSP_ask_for_reset(void)
145{
146  printk("system stopped, press RESET");
147  while(1) {};
148}
149
150void BSP_panic(char *s)
151{
152  printk("%s PANIC %s\n",_RTEMS_version, s);
153  BSP_ask_for_reset();
154}
155
156void _BSP_Fatal_error(unsigned int v)
157{
158  printk("%s PANIC ERROR %x\n",_RTEMS_version, v);
159  BSP_ask_for_reset();
160}
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