/* arch/arm/plat-s5pc1xx/irq.c
*
* Copyright 2009 Samsung Electronics Co.
* Byungho Min <bhmin@samsung.com>
*
* S5PC1XX - Interrupt handling
*
* Based on plat-s3c64xx/irq.c
*
* 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 <mach/map.h>
#include <plat/irq-vic-timer.h>
#include <plat/irq-uart.h>
#include <plat/cpu.h>
/* 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 = (void *)S3C_VA_UART0,
.base_irq = IRQ_S3CUART_BASE0,
.parent_irq = IRQ_UART0,
},
[1] = {
.regs = (void *)S3C_VA_UART1,
.base_irq = IRQ_S3CUART_BASE1,
.parent_irq = IRQ_UART1,
},
[2] = {
.regs = (void *)S3C_VA_UART2,
.base_irq = IRQ_S3CUART_BASE2,
.parent_irq = IRQ_UART2,
},
[3] = {
.regs = (void *)S3C_VA_UART3,
.base_irq = IRQ_S3CUART_BASE3,
.parent_irq = IRQ_UART3,
},
};
void __init s5pc1xx_init_irq(u32 *vic_valid, int num)
{
int i;
printk(KERN_DEBUG "%s: initialising interrupts\n", __func__);
/* initialise the pair of VICs */
for (i = 0; i < num; i++)
vic_init((void *)S5PC1XX_VA_VIC(i), S3C_IRQ(i * S3C_IRQ_OFFSET),
vic_valid[i], 0);
/* add the timer sub-irqs */
s3c_init_vic_timer_irq(IRQ_TIMER0_VIC, IRQ_TIMER0);
s3c_init_vic_timer_irq(IRQ_TIMER1_VIC, IRQ_TIMER1);
s3c_init_vic_timer_irq(IRQ_TIMER2_VIC, IRQ_TIMER2);
s3c_init_vic_timer_irq(IRQ_TIMER3_VIC, IRQ_TIMER3);
s3c_init_vic_timer_irq(IRQ_TIMER4_VIC, IRQ_TIMER4);
s3c_init_uart_irqs(uart_irqs, ARRAY_SIZE(uart_irqs));
}
