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/*
* Copyright (C) 2000 RidgeRun, Inc.
* Author: RidgeRun, Inc.
* glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
*
* Copyright 2001 MontaVista Software Inc.
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
* Copyright (C) 2000, 2001, 2003 Ralf Baechle (ralf@gnu.org)
*
* 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 SOFTWARE IS PROVIDED ``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 AUTHOR 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.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/timex.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/bitops.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/irq_cpu.h>
#include <asm/mipsregs.h>
#include <asm/system.h>
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause();
if (pending & STATUSF_IP2) /* int0 hardware line */
do_IRQ(2);
else if (pending & STATUSF_IP3) /* int1 hardware line */
do_IRQ(3);
else if (pending & STATUSF_IP4) /* int2 hardware line */
do_IRQ(4);
else if (pending & STATUSF_IP5) /* int3 hardware line */
do_IRQ(5);
else if (pending & STATUSF_IP6) /* int4 hardware line */
do_IRQ(6);
else if (pending & STATUSF_IP7) /* cpu timer */
do_IRQ(7);
else {
/*
* Now look at the extended interrupts
*/
pending = (read_c0_cause() & (read_c0_intcontrol() << 8)) >> 16;
if (pending & STATUSF_IP8) /* int6 hardware line */
do_IRQ(8);
else if (pending & STATUSF_IP9) /* int7 hardware line */
do_IRQ(9);
else if (pending & STATUSF_IP10) /* int8 hardware line */
do_IRQ(10);
else if (pending & STATUSF_IP11) /* int9 hardware line */
do_IRQ(11);
}
}
void __init arch_init_irq(void)
{
/*
* Clear all of the interrupts while we change the able around a bit.
* int-handler is not on bootstrap
*/
clear_c0_status(ST0_IM);
local_irq_disable();
mips_cpu_irq_init(0);
rm7k_cpu_irq_init(8);
}
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