diff options
Diffstat (limited to 'bsps/m68k/mvme147/start/bspclean.c')
-rw-r--r-- | bsps/m68k/mvme147/start/bspclean.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/bsps/m68k/mvme147/start/bspclean.c b/bsps/m68k/mvme147/start/bspclean.c new file mode 100644 index 0000000000..6606b9a249 --- /dev/null +++ b/bsps/m68k/mvme147/start/bspclean.c @@ -0,0 +1,49 @@ +/* + * This routine returns control to 147Bug. + */ + +/* + * COPYRIGHT (c) 1989-2014. + * 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.org/license/LICENSE. + * + * MVME147 port for TNI - Telecom Bretagne + * by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr) + * May 1996 + */ + +#include <bsp.h> +#include <bsp/bootcard.h> + +extern void start(void); + +static rtems_isr bsp_return_to_monitor_trap( + rtems_vector_number vector +) +{ + 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_fatal_extension( + rtems_fatal_source source, + bool always_set_to_false, + rtems_fatal_code error +) +{ + 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 */ +} |