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[/] [or1k/] [trunk/] [rtems-20020807/] [c/] [src/] [lib/] [libbsp/] [mips/] [p4000/] [startup/] [bspstart.c] - Blame information for rev 1026

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/*
 *  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.
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  bspstart.c,v 1.14 2000/11/01 21:17:00 joel Exp
 */
 
/*
 *  Rather than deleting this, it is commented out to (hopefully) help
 *  the submitter send updates.
 *
 *  static char _sccsid[] = "@(#)bspstart.c 06/11/96     1.2\n";
 */
 
#include <string.h>
 
#include <bsp.h>
#include <rtems/libio.h>
#include <rtems/libcsupport.h>
 
/*
 *  The original table from the application and our copy of it with
 *  some changes.
 */
 
extern rtems_configuration_table Configuration;
 
rtems_configuration_table  BSP_Configuration;
 
rtems_cpu_table Cpu_table;
 
char *rtems_progname;
 
/*
 *  Use the shared implementations of the following routines
 */
 
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
 
/*
 *  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.
 *
 */
 
#define LIBC_HEAP_SIZE (64 * 1024)
 
void bsp_pretasking_hook(void)
{
    extern int end;
    rtems_unsigned32        heap_start;
 
    heap_start = (rtems_unsigned32) &end;
    if (heap_start & (CPU_ALIGNMENT-1))
        heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
 
    bsp_libc_init((void *) heap_start, LIBC_HEAP_SIZE, 0);
 
#ifdef RTEMS_DEBUG
    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
 
extern int end; /* defined by linker */
 
/*
 *  bsp_start
 *
 *  This routine does the bulk of the system initialization.
 */
 
void bsp_start( void )
{
  /*
   *  Allocate the memory for the RTEMS Work Space.  This can come from
   *  a variety of places: hard coded address, malloc'ed from outside
   *  RTEMS world (e.g. simulator or primitive memory manager), or (as
   *  typically done by stock BSPs) by subtracting the required amount
   *  of work space from the last physical address on the CPU board.
   */
 
  /*
   *  Need to "allocate" the memory for the RTEMS Workspace and
   *  tell the RTEMS configuration where it is.  This memory is
   *  not malloc'ed.  It is just "pulled from the air".
   */
 
  BSP_Configuration.work_space_start =
       (void *)((unsigned64)((&end) + LIBC_HEAP_SIZE + 0x2000) & ~0x7);
 
  /*
   *  initialize the CPU table for this BSP
   */
 
  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
  Cpu_table.postdriver_hook = bsp_postdriver_hook;
  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
  Cpu_table.clicks_per_microsecond = CPU_CLOCK_RATE_MHZ;
}

Line No.	Rev	Author	Line
1	1026	ivang	`/*`
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			`* bspstart.c,v 1.14 2000/11/01 21:17:00 joel Exp`
15			`*/`
16
17			`/*`
18			`* Rather than deleting this, it is commented out to (hopefully) help`
19			`* the submitter send updates.`
20			`*`
21			`* static char _sccsid[] = "@(#)bspstart.c 06/11/96 1.2\n";`
22			`*/`
23
24			`#include <string.h>`
25
26			`#include <bsp.h>`
27			`#include <rtems/libio.h>`
28			`#include <rtems/libcsupport.h>`
29
30			`/*`
31			`* The original table from the application and our copy of it with`
32			`* some changes.`
33			`*/`
34
35			`extern rtems_configuration_table Configuration;`
36
37			`rtems_configuration_table BSP_Configuration;`
38
39			`rtems_cpu_table Cpu_table;`
40
41			`char *rtems_progname;`
42
43			`/*`
44			`* Use the shared implementations of the following routines`
45			`*/`
46
47			`void bsp_postdriver_hook(void);`
48			`void bsp_libc_init( void *, unsigned32, int );`
49
50			`/*`
51			`* Function: bsp_pretasking_hook`
52			`* Created: 95/03/10`
53			`*`
54			`* Description:`
55			`* BSP pretasking hook. Called just before drivers are initialized.`
56			`* Used to setup libc and install any BSP extensions.`
57			`*`
58			`* NOTES:`
59			`* Must not use libc (to do io) from here, since drivers are`
60			`* not yet initialized.`
61			`*`
62			`*/`
63
64			`#define LIBC_HEAP_SIZE (64 * 1024)`
65
66			`void bsp_pretasking_hook(void)`
67			`{`
68			`extern int end;`
69			`rtems_unsigned32 heap_start;`
70
71			`heap_start = (rtems_unsigned32) &end;`
72			`if (heap_start & (CPU_ALIGNMENT-1))`
73			`heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);`
74
75			`bsp_libc_init((void *) heap_start, LIBC_HEAP_SIZE, 0);`
76
77			`#ifdef RTEMS_DEBUG`
78			`rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );`
79			`#endif`
80			`}`
81
82			`extern int end; /* defined by linker */`
83
84			`/*`
85			`* bsp_start`
86			`*`
87			`* This routine does the bulk of the system initialization.`
88			`*/`
89
90			`void bsp_start( void )`
91			`{`
92			`/*`
93			`* Allocate the memory for the RTEMS Work Space. This can come from`
94			`* a variety of places: hard coded address, malloc'ed from outside`
95			`* RTEMS world (e.g. simulator or primitive memory manager), or (as`
96			`* typically done by stock BSPs) by subtracting the required amount`
97			`* of work space from the last physical address on the CPU board.`
98			`*/`
99
100			`/*`
101			`* Need to "allocate" the memory for the RTEMS Workspace and`
102			`* tell the RTEMS configuration where it is. This memory is`
103			`* not malloc'ed. It is just "pulled from the air".`
104			`*/`
105
106			`BSP_Configuration.work_space_start =`
107			`(void *)((unsigned64)((&end) + LIBC_HEAP_SIZE + 0x2000) & ~0x7);`
108
109			`/*`
110			`* initialize the CPU table for this BSP`
111			`*/`
112
113			`Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */`
114			`Cpu_table.postdriver_hook = bsp_postdriver_hook;`
115			`Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;`
116			`Cpu_table.clicks_per_microsecond = CPU_CLOCK_RATE_MHZ;`
117			`}`

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[/] [or1k/] [trunk/] [rtems-20020807/] [c/] [src/] [lib/] [libbsp/] [mips/] [p4000/] [startup/] [bspstart.c] - Blame information for rev 1026