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
  28 /* setup the sources the vic should advertise resume for, even though it
  29  * is not doing the wake (set_irq_wake needs to be valid) */
  30 #define IRQ_VIC0_RESUME (1 << (IRQ_RTC_TIC - IRQ_VIC0_BASE))
  31 #define IRQ_VIC1_RESUME (1 << (IRQ_RTC_ALARM - IRQ_VIC1_BASE) | \
  32                          1 << (IRQ_PENDN - IRQ_VIC1_BASE) |     \
  33                          1 << (IRQ_HSMMC0 - IRQ_VIC1_BASE) |    \
  34                          1 << (IRQ_HSMMC1 - IRQ_VIC1_BASE) |    \
  35                          1 << (IRQ_HSMMC2 - IRQ_VIC1_BASE))
  36
  37 void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid)
  38 {
  39         printk(KERN_DEBUG "%s: initialising interrupts\n", __func__);
  40
  41         /* initialise the pair of VICs */
  42         vic_init(VA_VIC0, IRQ_VIC0_BASE, vic0_valid, IRQ_VIC0_RESUME);
  43         vic_init(VA_VIC1, IRQ_VIC1_BASE, vic1_valid, IRQ_VIC1_RESUME);
  44
  45         /* add the timer sub-irqs */
  46         s3c_init_vic_timer_irq(5, IRQ_TIMER0);
  47 }