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kernel/linux-imx6_3.14.28/arch/arm/mach-mv78xx0/irq.c 1.05 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * arch/arm/mach-mv78xx0/irq.c
   *
   * MV78xx0 IRQ handling.
   *
   * 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/gpio.h>
  #include <linux/kernel.h>
  #include <linux/irq.h>
  #include <linux/io.h>
  #include <mach/bridge-regs.h>
  #include <plat/orion-gpio.h>
  #include <plat/irq.h>
  #include "common.h"
  
  static int __initdata gpio0_irqs[4] = {
  	IRQ_MV78XX0_GPIO_0_7,
  	IRQ_MV78XX0_GPIO_8_15,
  	IRQ_MV78XX0_GPIO_16_23,
  	IRQ_MV78XX0_GPIO_24_31,
  };
  
  void __init mv78xx0_init_irq(void)
  {
  	orion_irq_init(0, IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF);
  	orion_irq_init(32, IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF);
  	orion_irq_init(64, IRQ_VIRT_BASE + IRQ_MASK_ERR_OFF);
  
  	/*
  	 * Initialize gpiolib for GPIOs 0-31.  (The GPIO interrupt mask
  	 * registers for core #1 are at an offset of 0x18 from those of
  	 * core #0.)
  	 */
  	orion_gpio_init(NULL, 0, 32, GPIO_VIRT_BASE,
  			mv78xx0_core_index() ? 0x18 : 0,
  			IRQ_MV78XX0_GPIO_START, gpio0_irqs);
  }