source: rtems/c/src/lib/libbsp/i960/i960sim/startup/bspstart.c @ bc85fd5a

4.104.114.84.95
Last change on this file since bc85fd5a was bc85fd5a, checked in by Joel Sherrill <joel.sherrill@…>, on Jul 11, 2000 at 7:31:04 PM

Reworked score/cpu/i960 so it can be safely compiled multilib. All
routines and structures that require CPU model specific information
are now in libcpu. This required significant rework of the
score/cpu header files and the creation of multiple header files
and subdirectories in libcpu/i960.

  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 *  This routine starts the application.  It includes application,
3 *  board, and monitor specific initialization and configuration.
4 *  The generic CPU dependent initialization has been performed
5 *  before this routine is invoked.
6 *
7 *  COPYRIGHT (c) 1989-1999.
8 *  On-Line Applications Research Corporation (OAR).
9 *
10 *  The license and distribution terms for this file may be
11 *  found in the file LICENSE in this distribution or at
12 *  http://www.OARcorp.com/rtems/license.html.
13 *
14 *  $Id$
15 */
16
17#include <bsp.h>
18#include <rtems/libio.h>
19 
20#include <libcsupport.h>
21 
22#include <string.h>
23 
24/*
25 *  The original table from the application and our copy of it with
26 *  some changes.
27 */
28
29extern rtems_configuration_table Configuration;
30
31rtems_configuration_table  BSP_Configuration;
32
33rtems_cpu_table Cpu_table;
34
35char *rtems_progname;
36
37/*
38 *  Use the shared implementations of the following routines
39 */
40 
41void bsp_postdriver_hook(void);
42void bsp_libc_init( void *, unsigned32, int );
43
44/*
45 *  Function:   bsp_pretasking_hook
46 *  Created:    95/03/10
47 *
48 *  Description:
49 *      BSP pretasking hook.  Called just before drivers are initialized.
50 *      Used to setup libc and install any BSP extensions.
51 *
52 *  NOTES:
53 *      Must not use libc (to do io) from here, since drivers are
54 *      not yet initialized.
55 *
56 */
57 
58void bsp_pretasking_hook(void)
59{
60    extern int HeapBase;
61    extern int HeapSize;
62    void         *heapStart = &HeapBase;
63    unsigned long heapSize = (unsigned long)&HeapSize;
64    unsigned long ramSpace;
65
66    bsp_libc_init(heapStart, heapSize, 0);
67
68#ifdef RTEMS_DEBUG
69    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
70#endif
71
72}
73 
74/*
75 *  bsp_start
76 *
77 *  This routine does the bulk of the system initialization.
78 */
79
80#include <libcpu/i960KA.h>
81
82i960_PRCB *Prcb; /* to satisfy linking */
83
84void bsp_start( void )
85{
86  extern int _end;
87  extern int WorkspaceBase;
88  /* Configure Number of Register Caches */
89
90  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
91  Cpu_table.postdriver_hook = bsp_postdriver_hook;
92  Cpu_table.interrupt_stack_size = 4096;
93
94  if ( BSP_Configuration.work_space_size >(512*1024) )
95   _sys_exit( 1 );
96
97  BSP_Configuration.work_space_start = (void *) &WorkspaceBase;
98}
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