Commit | Line | Data |
---|---|---|
3085de6a | 1 | /* |
9dd0b194 | 2 | * arch/arm/mach-orion5x/irq.c |
3085de6a TP |
3 | * |
4 | * Core IRQ functions for Marvell Orion System On Chip | |
5 | * | |
6 | * Maintainer: Tzachi Perelstein <tzachi@marvell.com> | |
7 | * | |
8 | * This file is licensed under the terms of the GNU General Public | |
159ffb3a | 9 | * License version 2. This program is licensed "as is" without any |
3085de6a TP |
10 | * warranty of any kind, whether express or implied. |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/irq.h> | |
fced80c7 | 16 | #include <linux/io.h> |
3085de6a | 17 | #include <asm/gpio.h> |
fdd8b079 | 18 | #include <mach/bridge-regs.h> |
6f088f1d | 19 | #include <plat/irq.h> |
3085de6a TP |
20 | #include "common.h" |
21 | ||
07332318 | 22 | static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) |
3085de6a | 23 | { |
9dd0b194 | 24 | BUG_ON(irq < IRQ_ORION5X_GPIO_0_7 || irq > IRQ_ORION5X_GPIO_24_31); |
f0066614 | 25 | |
07332318 | 26 | orion_gpio_irq_handler((irq - IRQ_ORION5X_GPIO_0_7) << 3); |
3085de6a TP |
27 | } |
28 | ||
07332318 | 29 | void __init orion5x_init_irq(void) |
3085de6a | 30 | { |
07332318 | 31 | orion_irq_init(0, (void __iomem *)MAIN_IRQ_MASK); |
3085de6a TP |
32 | |
33 | /* | |
9eac6d0a | 34 | * Initialize gpiolib for GPIOs 0-31. |
3085de6a | 35 | */ |
9eac6d0a | 36 | orion_gpio_init(0, 32, GPIO_VIRT_BASE, 0, IRQ_ORION5X_GPIO_START); |
6845664a TG |
37 | irq_set_chained_handler(IRQ_ORION5X_GPIO_0_7, gpio_irq_handler); |
38 | irq_set_chained_handler(IRQ_ORION5X_GPIO_8_15, gpio_irq_handler); | |
39 | irq_set_chained_handler(IRQ_ORION5X_GPIO_16_23, gpio_irq_handler); | |
40 | irq_set_chained_handler(IRQ_ORION5X_GPIO_24_31, gpio_irq_handler); | |
3085de6a | 41 | } |