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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* This routine returns control to 147Bug.
*/
/*
* COPYRIGHT (c) 1989-2014.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* 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 */
}
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