1 /* 2 * arch/arm/mach-mv78xx0/irq.c 3 * 4 * MV78xx0 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 #include <linux/gpio.h> 11 #include <linux/kernel.h> 12 #include <linux/irq.h> 13 #include <linux/io.h> 14 #include <mach/bridge-regs.h> 15 #include <plat/orion-gpio.h> 16 #include <plat/irq.h> 17 #include "common.h" 18 19 static int __initdata gpio0_irqs[4] = { 20 IRQ_MV78XX0_GPIO_0_7, 21 IRQ_MV78XX0_GPIO_8_15, 22 IRQ_MV78XX0_GPIO_16_23, 23 IRQ_MV78XX0_GPIO_24_31, 24 }; 25 26 void __init mv78xx0_init_irq(void) 27 { 28 orion_irq_init(0, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF); 29 orion_irq_init(32, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF); 30 orion_irq_init(64, IRQ_VIRT_BASE + IRQ_MASK_ERR_OFF); 31 32 /* 33 * Initialize gpiolib for GPIOs 0-31. (The GPIO interrupt mask 34 * registers for core #1 are at an offset of 0x18 from those of 35 * core #0.) 36 */ 37 orion_gpio_init(NULL, 0, 32, GPIO_VIRT_BASE, 38 mv78xx0_core_index() ? 0x18 : 0, 39 IRQ_MV78XX0_GPIO_START, gpio0_irqs); 40 } 41