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