mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/*
|
|
* U-boot - ints.c Interrupt related routines
|
|
*
|
|
* Copyright (c) 2005-2007 Analog Devices Inc.
|
|
*
|
|
* This file is based on ints.c
|
|
*
|
|
* Apr18 2003, Changed by HuTao to support interrupt cascading for Blackfin
|
|
* drivers
|
|
*
|
|
* Copyright 1996 Roman Zippel
|
|
* Copyright 1999 D. Jeff Dionne <jeff@uclinux.org>
|
|
* Copyright 2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca>
|
|
* Copyright 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca>
|
|
* Copyright 2003 Metrowerks/Motorola
|
|
*
|
|
* (C) Copyright 2000-2004
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
|
|
* MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/stddef.h>
|
|
#include <asm/system.h>
|
|
#include <asm/traps.h>
|
|
#include <asm/io.h>
|
|
#include <asm/errno.h>
|
|
#include <asm/blackfin.h>
|
|
#include "cpu.h"
|
|
|
|
void blackfin_irq_panic(int reason, struct pt_regs *regs)
|
|
{
|
|
printf("\n\nException: IRQ 0x%x entered\n", reason);
|
|
printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f));
|
|
printf("stack frame=0x%x, ", (unsigned int)regs);
|
|
printf("bad PC=0x%04x\n", (unsigned int)regs->pc);
|
|
dump(regs);
|
|
printf("Unhandled IRQ or exceptions!\n");
|
|
printf("Please reset the board \n");
|
|
}
|
|
|
|
void blackfin_init_IRQ(void)
|
|
{
|
|
*(unsigned volatile long *)(SIC_IMASK) = 0;
|
|
#ifndef CONFIG_KGDB
|
|
*(unsigned volatile long *)(EVT1) = 0x0;
|
|
#endif
|
|
*(unsigned volatile long *)(EVT2) =
|
|
(unsigned volatile long)evt_nmi;
|
|
*(unsigned volatile long *)(EVT3) =
|
|
(unsigned volatile long)trap;
|
|
*(unsigned volatile long *)(EVT5) =
|
|
(unsigned volatile long)evt_ivhw;
|
|
*(unsigned volatile long *)(EVT0) =
|
|
(unsigned volatile long)evt_rst;
|
|
*(unsigned volatile long *)(EVT6) =
|
|
(unsigned volatile long)evt_timer;
|
|
*(unsigned volatile long *)(EVT7) =
|
|
(unsigned volatile long)evt_evt7;
|
|
*(unsigned volatile long *)(EVT8) =
|
|
(unsigned volatile long)evt_evt8;
|
|
*(unsigned volatile long *)(EVT9) =
|
|
(unsigned volatile long)evt_evt9;
|
|
*(unsigned volatile long *)(EVT10) =
|
|
(unsigned volatile long)evt_evt10;
|
|
*(unsigned volatile long *)(EVT11) =
|
|
(unsigned volatile long)evt_evt11;
|
|
*(unsigned volatile long *)(EVT12) =
|
|
(unsigned volatile long)evt_evt12;
|
|
*(unsigned volatile long *)(EVT13) =
|
|
(unsigned volatile long)evt_evt13;
|
|
*(unsigned volatile long *)(EVT14) =
|
|
(unsigned volatile long)evt_system_call;
|
|
*(unsigned volatile long *)(EVT15) =
|
|
(unsigned volatile long)evt_soft_int1;
|
|
*(volatile unsigned long *)ILAT = 0;
|
|
asm("csync;");
|
|
*(volatile unsigned long *)IMASK = 0xffbf;
|
|
asm("csync;");
|
|
}
|
|
|
|
void exception_handle(void)
|
|
{
|
|
#if defined (CONFIG_PANIC_HANG)
|
|
display_excp();
|
|
#else
|
|
udelay(100000); /* allow messages to go out */
|
|
do_reset(NULL, 0, 0, NULL);
|
|
#endif
|
|
}
|
|
|
|
void display_excp(void)
|
|
{
|
|
printf("Exception!\n");
|
|
}
|