source: rtems/c/src/lib/libbsp/i960/rxgen960/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: 3.6 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 *  COPYRIGHT (c) 1989-1997.
13 *  On-Line Applications Research Corporation (OAR).
14 *  Copyright assigned to U.S. Government, 1994.
15 *
16 *  The license and distribution terms for this file may in
17 *  the file LICENSE in this distribution or at
18 *  http://www.OARcorp.com/rtems/license.html.
19 *
20 *  $Id$
21 */
22
23#include <bsp.h>
24#include <rtems/libio.h>
25 
26#include <libcsupport.h>
27 
28#include <string.h>
29#include <fcntl.h>
30#include <stdio.h>
31#include "i960RP.h"
32#include <rtems/libio.h>
33 
34#ifdef STACK_CHECKER_ON
35#include <stackchk.h>
36#endif
37
38#define HEAP_SIZE 1024*1024*2
39
40/*
41 *  The original table from the application and our copy of it with
42 *  some changes.
43 */
44
45extern int putnum(unsigned int);
46
47extern rtems_configuration_table Configuration;
48extern void bsp_postdriver_hook(void); /* defined in shared directory */
49
50rtems_configuration_table  BSP_Configuration;
51
52rtems_cpu_table Cpu_table;
53
54char *rtems_progname;
55unsigned int top_of_used_memory;
56
57/*
58 *  Function:   bsp_pretasking_hook
59 *  Created:    95/03/10
60 *
61 *  Description:
62 *      BSP pretasking hook.  Called just before drivers are initialized.
63 *      Used to setup libc and install any BSP extensions.
64 *
65 *  NOTES:
66 *      Must not use libc (to do io) from here, since drivers are
67 *      not yet initialized.
68 *
69 */
70 
71void
72bsp_pretasking_hook(void)
73{
74
75    extern int end;
76    rtems_unsigned32        heap_start;
77
78*(unsigned char *)(0x120f) = 0xd;
79/*     heap_start = (rtems_unsigned32) &end; */
80    heap_start = (rtems_unsigned32) top_of_used_memory;
81    if (heap_start & (CPU_ALIGNMENT-1))
82        heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
83
84    bsp_libc_init((void *) heap_start, 64 * 1024, 0);
85
86
87#ifdef STACK_CHECKER_ON
88    /*
89     *  Initialize the stack bounds checker
90     *  We can either turn it on here or from the app.
91     */
92 
93*(unsigned char *)(0x120f) = 0xe;
94    Stack_check_Initialize();
95#endif
96 
97#ifdef RTEMS_DEBUG
98    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
99#endif
100*(unsigned char *)(0x120f) = 0xf;
101}
102 
103
104/* we need to have the top of memory remembered later to start libc_init with
105   the correct values
106*/
107int rx_boot_card( int argc, char **argv, char **environp)
108{
109    extern int end;
110    top_of_used_memory = (rtems_unsigned32) &end + 0x1000;
111  if ((argc > 0) && argv && argv[0])
112    rtems_progname = argv[0];
113  else
114    rtems_progname = "RTEMS/RP";
115
116        boot_card(argc, argv);
117
118}
119
120bsp_start(void)
121{
122
123  *(unsigned int *)OIMR_ADDR = 0xff;    /* Mask all primary PCI Interrupts*/
124  Prcb    = get_prcb();
125  Ctl_tbl = Prcb->control_tbl;
126
127*(unsigned char *)(0x120f) = 8;
128  /*
129   *  we do not use the pretasking_hook.
130   */
131
132  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
133  Cpu_table.postdriver_hook = bsp_postdriver_hook;
134  Cpu_table.do_zero_of_workspace = TRUE;
135  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
136  Cpu_table.extra_mpci_receive_server_stack = 0;
137  Cpu_table.Prcb = Prcb;
138
139  /* just trying to get along */
140  Cpu_table.stack_allocate_hook = 0;
141  Cpu_table.stack_free_hook = 0;
142 
143  /*
144   * Tell libio how many fd's we want and allow it to tweak config
145   */
146
147*(unsigned char *)(0x120f) = 0x09;
148
149  BSP_Configuration.work_space_start = (void *) top_of_used_memory;
150     top_of_used_memory +=  (BSP_Configuration.work_space_size + 0x1000);
151
152
153*(unsigned char *)(0x120f) = 0x0a;
154
155  return 0;
156}
157
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