source: rtems/c/src/lib/libbsp/m68k/gen68360/startup/bspstart.c @ f52111f

4.104.114.84.95
Last change on this file since f52111f was 8ef3818, checked in by Joel Sherrill <joel.sherrill@…>, on 06/12/00 at 19:57:02

Patch from John Cotton <john.cotton@…>, Charles-Antoine Gauthier
<charles.gauthier@…>, and Darlene A. Stewart
<Darlene.Stewart@…> to add support for a number of very
significant things:

+ BSPs for many variations on the Motorola MBX8xx board series
+ Cache Manager including initial support for m68040

and PowerPC

+ Rework of mpc8xx libcpu code so all mpc8xx CPUs now use

same code base.

+ Rework of eth_comm BSP to utiltize above.

John reports this works on the 821 and 860

  • Property mode set to 100644
File size: 2.3 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;
30rtems_configuration_table  BSP_Configuration;
31rtems_cpu_table Cpu_table;
32
33char *rtems_progname;
34
35/* Amount of RAM on this board. Dynamically set in start.S */
36unsigned long _M68K_RamSize;
37
38/*
39 *  Use the shared implementations of the following routines
40 */
41 
42void bsp_postdriver_hook(void);
43void bsp_libc_init( void *, unsigned32, int );
44void bsp_pretasking_hook(void);               /* m68k version */
45
46/*
47 *  bsp_start
48 *
49 *  This routine does the bulk of the system initialization.
50 */
51
52void bsp_start( void )
53{
54  extern void *_WorkspaceBase;
55 
56  /*
57   *  _M68k_Ramsize is the amount of RAM on this board and
58   *  is set by many m68k BSPs at this point.  With this
59   *  BSP, it is dynamically set in start.S.
60   */
61
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
71  /*
72   *  Need to "allocate" the memory for the RTEMS Workspace and
73   *  tell the RTEMS configuration where it is.  This memory is
74   *  not malloc'ed.  It is just "pulled from the air".
75   */
76
77  BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;
78
79  /*
80   *  initialize the CPU table for this BSP
81   */
82
83  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
84  Cpu_table.postdriver_hook = bsp_postdriver_hook;
85  Cpu_table.do_zero_of_workspace = TRUE;
86  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
87}
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