diff options
Diffstat (limited to 'target/linux/atheros-2.6/files/arch/mips/atheros/irq.c')
| -rw-r--r-- | target/linux/atheros-2.6/files/arch/mips/atheros/irq.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/target/linux/atheros-2.6/files/arch/mips/atheros/irq.c b/target/linux/atheros-2.6/files/arch/mips/atheros/irq.c new file mode 100644 index 0000000000..99d960b417 --- /dev/null +++ b/target/linux/atheros-2.6/files/arch/mips/atheros/irq.c @@ -0,0 +1,98 @@ +/* + * 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); +} |