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/* arch/arm/plat-s5p/irq.c
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P - Interrupt handling
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <asm/hardware/vic.h>
#include <linux/serial_core.h>
#include <mach/map.h>
#include <plat/regs-timer.h>
#include <plat/regs-serial.h>
#include <plat/cpu.h>
#include <plat/irq-vic-timer.h>
#include <plat/irq-uart.h>
#include <plat/irq-pm.h>
/* Wakeup source */
static int wakeup_source[] = {
IRQ_RTC_ALARM,
IRQ_RTC_TIC,
IRQ_ADC,
IRQ_ADC1,
IRQ_KEYPAD,
IRQ_HSMMC0,
IRQ_HSMMC1,
IRQ_HSMMC2,
IRQ_HSMMC3,
IRQ_I2S0,
IRQ_SYSTIMER,
IRQ_CEC
};
/*
* Note, we make use of the fact that the parent IRQs, IRQ_UART[0..3]
* are consecutive when looking up the interrupt in the demux routines.
*/
static struct s3c_uart_irq uart_irqs[] = {
[0] = {
.regs = S5P_VA_UART0,
.base_irq = IRQ_S5P_UART_BASE0,
.parent_irq = IRQ_UART0,
},
[1] = {
.regs = S5P_VA_UART1,
.base_irq = IRQ_S5P_UART_BASE1,
.parent_irq = IRQ_UART1,
},
[2] = {
.regs = S5P_VA_UART2,
.base_irq = IRQ_S5P_UART_BASE2,
.parent_irq = IRQ_UART2,
},
#if CONFIG_SERIAL_SAMSUNG_UARTS > 3
[3] = {
.regs = S5P_VA_UART3,
.base_irq = IRQ_S5P_UART_BASE3,
.parent_irq = IRQ_UART3,
},
#endif
};
void __init s5p_init_irq(u32 *vic, u32 num_vic)
{
struct irq_chip *chip;
int irq;
#ifdef CONFIG_ARM_VIC
/* initialize the VICs */
for (irq = 0; irq < num_vic; irq++)
vic_init(VA_VIC(irq), VIC_BASE(irq), vic[irq], 0);
#endif
s3c_init_vic_timer_irq(5, IRQ_TIMER0);
s3c_init_uart_irqs(uart_irqs, ARRAY_SIZE(uart_irqs));
/* Register wakeup source. */
for (irq = 0; irq < ARRAY_SIZE(wakeup_source); irq++) {
chip = irq_get_chip(wakeup_source[irq]);
chip->irq_set_wake = s3c_irq_wake;
}
}
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