source: rtems/c/src/lib/libbsp/m68k/gen68340/startup/bspstart.c @ f3fea868

Last change on this file since f3fea868 was f3fea868, checked in by Joel Sherrill <joel.sherrill@…>, on 04/13/00 at 13:00:41

M68k BSPs compile and link again after making Ramsize handling as
consistent as possible across all m68k BSPs.

  • Property mode set to 100644
File size: 2.5 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 *  COPYRIGHT (c) 1989-1999.
13 *  On-Line Applications Research Corporation (OAR).
14 *
15 *  The license and distribution terms for this file may be
16 *  found in the file LICENSE in this distribution or at
17 *  http://www.OARcorp.com/rtems/license.html.
18 *
19 *  $Id$
20 */
21
22#include <bsp.h>
23#include <rtems/libio.h>
24 
25#include <libcsupport.h>
26 
27#include <string.h>
28 
29
30/*
31 *  The original table from the application and our copy of it with
32 *  some changes.
33 */
34
35extern rtems_configuration_table Configuration;
36rtems_configuration_table  BSP_Configuration;
37
38rtems_cpu_table Cpu_table;
39
40char *rtems_progname;
41
42/*      Initialize whatever libc we are using
43 *      called from postdriver hook
44 */
45void bsp_postdriver_hook(void);
46void bsp_libc_init( void *, unsigned32, int );
47void bsp_pretasking_hook(void);               /* m68k version */
48
49/*
50 *  bsp_start
51 *
52 *  This routine does the bulk of the system initialization.
53 */
54
55void bsp_start( void )
56{
57  extern void          *_WorkspaceBase;
58  extern void          *_RamSize;
59  extern unsigned long  _M68k_Ramsize;
60
61  _M68k_Ramsize = (unsigned long)&_RamSize;             /* RAM size set in linker script */
62
63  /*
64   *  Allocate the memory for the RTEMS Work Space.  This can come from
65   *  a variety of places: hard coded address, malloc'ed from outside
66   *  RTEMS world (e.g. simulator or primitive memory manager), or (as
67   *  typically done by stock BSPs) by subtracting the required amount
68   *  of work space from the last physical address on the CPU board.
69   */
70#if 0
71  Cpu_table.interrupt_vector_table = (mc68000_isr *) 0/*&M68Kvec*/;
72#endif
73
74  /*
75   *  Need to "allocate" the memory for the RTEMS Workspace and
76   *  tell the RTEMS configuration where it is.  This memory is
77   *  not malloc'ed.  It is just "pulled from the air".
78   */
79
80  BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;
81
82  /*
83   *  Account for the console's resources
84   */
85
86  console_reserve_resources( &BSP_Configuration );
87
88  /*
89   *  initialize the CPU table for this BSP
90   */
91
92  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
93  Cpu_table.postdriver_hook = bsp_postdriver_hook;
94  Cpu_table.do_zero_of_workspace = TRUE;
95  Cpu_table.interrupt_stack_size = 4096;
96}
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