linux-imx

/*

 * Atmel AT91 AIC (Advanced Interrupt Controller) driver

 *

 *  Copyright (C) 2004 SAN People

 *  Copyright (C) 2004 ATMEL

 *  Copyright (C) Rick Bronson

 *  Copyright (C) 2014 Free Electrons

 *

 *  Author: Boris BREZILLON <boris.brezillon@free-electrons.com>

 *

 * This file is licensed under the terms of the GNU General Public

 * License version 2.  This program is licensed "as is" without any

 * warranty of any kind, whether express or implied.

 */

​

#include <linux/init.h>

#include <linux/module.h>

#include <linux/mm.h>

#include <linux/bitmap.h>

#include <linux/types.h>

#include <linux/irq.h>

#include <linux/irqchip.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/of_irq.h>

#include <linux/irqdomain.h>

#include <linux/err.h>

#include <linux/slab.h>

#include <linux/io.h>

​

#include <asm/exception.h>

#include <asm/mach/irq.h>

​

#include "irq-atmel-aic-common.h"

​

/* Number of irq lines managed by AIC */

#define NR_AIC_IRQS 32

​

#define AT91_AIC_SMR(n)         ((n) * 4)

​

#define AT91_AIC_SVR(n)         (0x80 + ((n) * 4))

#define AT91_AIC_IVR            0x100

#define AT91_AIC_FVR            0x104

#define AT91_AIC_ISR            0x108

​

#define AT91_AIC_IPR            0x10c

#define AT91_AIC_IMR            0x110

#define AT91_AIC_CISR           0x114

​

#define AT91_AIC_IECR           0x120

#define AT91_AIC_IDCR           0x124

#define AT91_AIC_ICCR           0x128

#define AT91_AIC_ISCR           0x12c

#define AT91_AIC_EOICR          0x130

#define AT91_AIC_SPU            0x134

#define AT91_AIC_DCR            0x138

​

static struct irq_domain *aic_domain;

​

static asmlinkage void __exception_irq_entry

aic_handle(struct pt_regs *regs)

{

    struct irq_domain_chip_generic *dgc = aic_domain->gc;