LXR linux/arch/arm/mach-s3c64xx/irq.c

   1/* arch/arm/plat-s3c64xx/irq.c
   2 *
   3 * Copyright 2008 Openmoko, Inc.
   4 * Copyright 2008 Simtec Electronics
   5 *      Ben Dooks <ben@simtec.co.uk>
   6 *      http://armlinux.simtec.co.uk/
   7 *
   8 * S3C64XX - Interrupt handling
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License version 2 as
  12 * published by the Free Software Foundation.
  13 */
  14
  15#include <linux/kernel.h>
  16#include <linux/interrupt.h>
  17#include <linux/serial_core.h>
  18#include <linux/irq.h>
  19#include <linux/io.h>
  20
  21#include <asm/hardware/vic.h>
  22
  23#include <mach/map.h>
  24#include <plat/irq-vic-timer.h>
  25#include <plat/irq-uart.h>
  26#include <plat/cpu.h>
  27
  28static struct s3c_uart_irq uart_irqs[] = {
  29        [0] = {
  30                .regs           = S3C_VA_UART0,
  31                .base_irq       = IRQ_S3CUART_BASE0,
  32                .parent_irq     = IRQ_UART0,
  33        },
  34        [1] = {
  35                .regs           = S3C_VA_UART1,
  36                .base_irq       = IRQ_S3CUART_BASE1,
  37                .parent_irq     = IRQ_UART1,
  38        },
  39        [2] = {
  40                .regs           = S3C_VA_UART2,
  41                .base_irq       = IRQ_S3CUART_BASE2,
  42                .parent_irq     = IRQ_UART2,
  43        },
  44        [3] = {
  45                .regs           = S3C_VA_UART3,
  46                .base_irq       = IRQ_S3CUART_BASE3,
  47                .parent_irq     = IRQ_UART3,
  48        },
  49};
  50
  51
  52void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid)
  53{
  54        printk(KERN_DEBUG "%s: initialising interrupts\n", __func__);
  55
  56        /* initialise the pair of VICs */
  57        vic_init(VA_VIC0, IRQ_VIC0_BASE, vic0_valid, 0);
  58        vic_init(VA_VIC1, IRQ_VIC1_BASE, vic1_valid, 0);
  59
  60        /* add the timer sub-irqs */
  61        s3c_init_vic_timer_irq(5, IRQ_TIMER0);
  62
  63        s3c_init_uart_irqs(uart_irqs, ARRAY_SIZE(uart_irqs));
  64}
  65