blob: 8457dd4c683a743e10f76d282eb23199235e546f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/*
* This routine returns control to 147Bug.
*
* COPYRIGHT (c) 1989-2010.
* 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.rtems.com/license/LICENSE.
*
* MVME147 port for TNI - Telecom Bretagne
* by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr)
* May 1996
*/
#include <rtems.h>
#include <bsp.h>
#include <rtems/clockdrv.h>
extern void start( void );
void bsp_return_to_monitor_trap(void)
{
register volatile void *start_addr;
m68k_set_vbr( 0 ); /* restore 147Bug vectors */
__asm__ volatile( "trap #15" ); /* trap to 147Bug */
__asm__ volatile( ".short 0x63" ); /* return to 147Bug (.RETURN) */
/* restart program */
start_addr = start;
__asm__ volatile ( "jmp %0@" : "=a" (start_addr) : "0" (start_addr) );
}
void bsp_cleanup(
uint32_t status
)
{
pcc->timer1_int_control = 0; /* Disable Timer 1 */
pcc->timer2_int_control = 0; /* Disable Timer 2 */
M68Kvec[ 45 ] = bsp_return_to_monitor_trap; /* install handler */
__asm__ volatile( "trap #13" ); /* ensures SUPV mode */
}
|
