1/*
 2 * arch/arm/plat-orion/irq.c
 3 *
 4 * Marvell Orion SoC IRQ handling.
 5 *
 6 * This file is licensed under the terms of the GNU General Public
 7 * License version 2.  This program is licensed "as is" without any
 8 * warranty of any kind, whether express or implied.
 9 */
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/irq.h>
 
14#include <linux/io.h>
 
 
 
15#include <plat/irq.h>
 
16
17void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
18{
19	struct irq_chip_generic *gc;
20	struct irq_chip_type *ct;
21
22	/*
23	 * Mask all interrupts initially.
24	 */
25	writel(0, maskaddr);
26
27	gc = irq_alloc_generic_chip("orion_irq", 1, irq_start, maskaddr,
28				    handle_level_irq);
29	ct = gc->chip_types;
30	ct->chip.irq_mask = irq_gc_mask_clr_bit;
31	ct->chip.irq_unmask = irq_gc_mask_set_bit;
32	irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_MASK_CACHE,
33			       IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE);
34}

 1/*
 2 * arch/arm/plat-orion/irq.c
 3 *
 4 * Marvell Orion SoC IRQ handling.
 5 *
 6 * This file is licensed under the terms of the GNU General Public
 7 * License version 2.  This program is licensed "as is" without any
 8 * warranty of any kind, whether express or implied.
 9 */
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/irq.h>
14#include <linux/irqdomain.h>
15#include <linux/io.h>
16#include <linux/of_address.h>
17#include <linux/of_irq.h>
18#include <asm/exception.h>
19#include <plat/irq.h>
20#include <plat/orion-gpio.h>
21
22void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
23{
24	struct irq_chip_generic *gc;
25	struct irq_chip_type *ct;
26
27	/*
28	 * Mask all interrupts initially.
29	 */
30	writel(0, maskaddr);
31
32	gc = irq_alloc_generic_chip("orion_irq", 1, irq_start, maskaddr,
33				    handle_level_irq);
34	ct = gc->chip_types;
35	ct->chip.irq_mask = irq_gc_mask_clr_bit;
36	ct->chip.irq_unmask = irq_gc_mask_set_bit;
37	irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_MASK_CACHE,
38			       IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE);
39}