summaryrefslogtreecommitdiffstats
path: root/c/src/lib/libbsp/i960/rxgen960/startup/bspstart.c
blob: 00f2b009dc703eb0b9e07d1f841ab264e3da6587 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
/*  bsp_start()
 *
 *  This routine starts the application.  It includes application,
 *  board, and monitor specific initialization and configuration.
 *  The generic CPU dependent initialization has been performed
 *  before this routine is invoked.
 *
 *  INPUT:  NONE
 *
 *  OUTPUT: NONE
 *
 *  COPYRIGHT (c) 1989-1997.
 *  On-Line Applications Research Corporation (OAR).
 *  Copyright assigned to U.S. Government, 1994.
 *
 *  The license and distribution terms for this file may in
 *  the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  $Id$
 */

#include <bsp.h>
#include <rtems/libio.h>
 
#include <libcsupport.h>
 
#include <string.h>
#include <fcntl.h>
#include <stdio.h>
#include "i960RP.h"
#include <rtems/libio.h>
 
#ifdef STACK_CHECKER_ON
#include <stackchk.h>
#endif

#define HEAP_SIZE 1024*1024*2

/*
 *  The original table from the application and our copy of it with
 *  some changes.
 */

extern int putnum(unsigned int);

extern rtems_configuration_table Configuration;
extern void bsp_postdriver_hook(void); /* defined in shared directory */

rtems_configuration_table  BSP_Configuration;

rtems_cpu_table Cpu_table;

char *rtems_progname;
unsigned int top_of_used_memory;

/*
 *  Function:   bsp_pretasking_hook
 *  Created:    95/03/10
 *
 *  Description:
 *      BSP pretasking hook.  Called just before drivers are initialized.
 *      Used to setup libc and install any BSP extensions.
 *
 *  NOTES:
 *      Must not use libc (to do io) from here, since drivers are
 *      not yet initialized.
 *
 */
 
void
bsp_pretasking_hook(void)
{

    extern int end;
    rtems_unsigned32        heap_start;

*(unsigned char *)(0x120f) = 0xd;
/*     heap_start = (rtems_unsigned32) &end; */
    heap_start = (rtems_unsigned32) top_of_used_memory;
    if (heap_start & (CPU_ALIGNMENT-1))
        heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);

    bsp_libc_init((void *) heap_start, 64 * 1024, 0);


#ifdef STACK_CHECKER_ON
    /*
     *  Initialize the stack bounds checker
     *  We can either turn it on here or from the app.
     */
 
*(unsigned char *)(0x120f) = 0xe;
    Stack_check_Initialize();
#endif
 
#ifdef RTEMS_DEBUG
    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
*(unsigned char *)(0x120f) = 0xf;
}
 

/* we need to have the top of memory remembered later to start libc_init with 
   the correct values
*/
int rx_boot_card( int argc, char **argv, char **environp)
{
    extern int end;
    top_of_used_memory = (rtems_unsigned32) &end + 0x1000;
  if ((argc > 0) && argv && argv[0])
    rtems_progname = argv[0];
  else
    rtems_progname = "RTEMS/RP";

	boot_card(argc, argv);

}

bsp_start(void)
{

  *(unsigned int *)OIMR_ADDR = 0xff;	/* Mask all primary PCI Interrupts*/
  Prcb    = get_prcb();
  Ctl_tbl = Prcb->control_tbl;

*(unsigned char *)(0x120f) = 8;
  /*
   *  we do not use the pretasking_hook.
   */

  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
  Cpu_table.postdriver_hook = bsp_postdriver_hook;
  Cpu_table.do_zero_of_workspace = TRUE;
  Cpu_table.interrupt_stack_size = 8192;
  Cpu_table.extra_mpci_receive_server_stack = 0;
  Cpu_table.Prcb = Prcb;

  /* just trying to get along */
  Cpu_table.stack_allocate_hook = 0;
  Cpu_table.stack_free_hook = 0;
  
  /*
   * Add 1 region for the RTEMS Malloc
   */

  BSP_Configuration.RTEMS_api_configuration->maximum_regions++;

  /*
   * Add 1 extension for newlib libc
   */

#ifdef RTEMS_NEWLIB
    BSP_Configuration.maximum_extensions++;
#endif

  /*
   * Add another extension if using the stack checker
   */

#ifdef STACK_CHECKER_ON
    BSP_Configuration.maximum_extensions++;
#endif


  /*
   * Tell libio how many fd's we want and allow it to tweak config
   */

*(unsigned char *)(0x120f) = 0x09;

  BSP_Configuration.work_space_start = (void *) top_of_used_memory;
     top_of_used_memory +=  (BSP_Configuration.work_space_size + 0x1000);


*(unsigned char *)(0x120f) = 0x0a;

  return 0;
}