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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
* Copyright (C) 2006 FON Technology, SL.
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
*/
/*
* Interrupt support for AR531X WiSOC.
*/
#include <linux/autoconf.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/irq.h>
#include <asm/bootinfo.h>
#include <asm/mipsregs.h>
#include <asm/irq_cpu.h>
#include "ar531x.h"
/* ARGSUSED */
irqreturn_t
spurious_irq_handler(int cpl, void *dev_id)
{
/*
printk("spurious_irq_handler: %d cause=0x%8.8x status=0x%8.8x\n",
cpl, cause_intrs, status_intrs);
*/
return IRQ_NONE;
}
/* ARGSUSED */
irqreturn_t
spurious_misc_handler(int cpl, void *dev_id)
{
/*
printk("spurious_misc_handler: 0x%x isr=0x%8.8x imr=0x%8.8x\n",
cpl, ar531x_isr, ar531x_imr);
*/
return IRQ_NONE;
}
static struct irqaction spurious_irq = {
.handler = spurious_irq_handler,
.flags = SA_INTERRUPT,
.name = "spurious_irq",
};
static struct irqaction spurious_misc = {
.handler = spurious_misc_handler,
.flags = SA_INTERRUPT,
.name = "spurious_misc",
};
asmlinkage void plat_irq_dispatch(void)
{
#ifdef CONFIG_ATHEROS_AR5312
if (mips_machtype == MACH_ATHEROS_AR5312)
ar5312_irq_dispatch();
#endif
#ifdef CONFIG_ATHEROS_AR5315
if (mips_machtype == MACH_ATHEROS_AR5315)
ar5315_irq_dispatch();
#endif
}
void __init arch_init_irq(void)
{
clear_c0_status(ST0_IM);
mips_cpu_irq_init(0);
/* Initialize interrupt controllers */
#ifdef CONFIG_ATHEROS_AR5312
if (mips_machtype == MACH_ATHEROS_AR5312)
ar5312_misc_intr_init(AR531X_MISC_IRQ_BASE);
#endif
#ifdef CONFIG_ATHEROS_AR5315
if (mips_machtype == MACH_ATHEROS_AR5315)
ar5315_misc_intr_init(AR531X_MISC_IRQ_BASE);
#endif
/* Default "spurious interrupt" handlers */
setup_irq(AR531X_IRQ_NONE, &spurious_irq);
setup_irq(AR531X_MISC_IRQ_NONE, &spurious_misc);
}
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