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Saeed Bishara651c74c2008-06-22 22:45:06 +02001/*
2 * arch/arm/mach-kirkwood/irq.c
3 *
4 * Kirkwood 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 */
Russell King2f8163b2011-07-26 10:53:52 +010010#include <linux/gpio.h>
Saeed Bishara651c74c2008-06-22 22:45:06 +020011#include <linux/kernel.h>
Saeed Bishara651c74c2008-06-22 22:45:06 +020012#include <linux/irq.h>
Nicolas Pitrefdd8b072009-04-22 20:08:17 +010013#include <mach/bridge-regs.h>
Lennert Buytenhek6f088f12008-08-09 13:44:58 +020014#include <plat/irq.h>
Saeed Bishara651c74c2008-06-22 22:45:06 +020015
Andrew Lunn278b45b2012-06-27 13:40:04 +020016static int __initdata gpio0_irqs[4] = {
17 IRQ_KIRKWOOD_GPIO_LOW_0_7,
18 IRQ_KIRKWOOD_GPIO_LOW_8_15,
19 IRQ_KIRKWOOD_GPIO_LOW_16_23,
20 IRQ_KIRKWOOD_GPIO_LOW_24_31,
21};
Lennert Buytenhek4c213432008-10-20 01:51:04 +020022
Andrew Lunn278b45b2012-06-27 13:40:04 +020023static int __initdata gpio1_irqs[4] = {
24 IRQ_KIRKWOOD_GPIO_HIGH_0_7,
25 IRQ_KIRKWOOD_GPIO_HIGH_8_15,
26 IRQ_KIRKWOOD_GPIO_HIGH_16_23,
27 0,
28};
Lennert Buytenhek4c213432008-10-20 01:51:04 +020029
Saeed Bishara651c74c2008-06-22 22:45:06 +020030void __init kirkwood_init_irq(void)
31{
32 orion_irq_init(0, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF));
33 orion_irq_init(32, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF));
Lennert Buytenhek4c213432008-10-20 01:51:04 +020034
35 /*
Lennert Buytenhek9eac6d02010-12-14 12:54:03 +010036 * Initialize gpiolib for GPIOs 0-49.
Lennert Buytenhek4c213432008-10-20 01:51:04 +020037 */
Andrew Lunn278b45b2012-06-27 13:40:04 +020038 orion_gpio_init(NULL, 0, 32, (void __iomem *)GPIO_LOW_VIRT_BASE, 0,
39 IRQ_KIRKWOOD_GPIO_START, gpio0_irqs);
40 orion_gpio_init(NULL, 32, 18, (void __iomem *)GPIO_HIGH_VIRT_BASE, 0,
41 IRQ_KIRKWOOD_GPIO_START + 32, gpio1_irqs);
Saeed Bishara651c74c2008-06-22 22:45:06 +020042}