Byungho Min | c9b870e | 2009-06-23 21:40:03 +0900 | [diff] [blame] | 1 | /* arch/arm/plat-s5pc1xx/irq.c |
| 2 | * |
| 3 | * Copyright 2009 Samsung Electronics Co. |
| 4 | * Byungho Min <bhmin@samsung.com> |
| 5 | * |
| 6 | * S5PC1XX - Interrupt handling |
| 7 | * |
| 8 | * Based on plat-s3c64xx/irq.c |
| 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/irq.h> |
| 18 | #include <linux/io.h> |
| 19 | |
| 20 | #include <asm/hardware/vic.h> |
| 21 | |
| 22 | #include <mach/map.h> |
Ben Dooks | 47101ec | 2010-01-07 14:41:38 +0900 | [diff] [blame] | 23 | #include <plat/irq-vic-timer.h> |
Ben Dooks | be97162 | 2010-01-12 14:13:58 +0900 | [diff] [blame] | 24 | #include <plat/irq-uart.h> |
Byungho Min | c9b870e | 2009-06-23 21:40:03 +0900 | [diff] [blame] | 25 | #include <plat/cpu.h> |
| 26 | |
Byungho Min | c9b870e | 2009-06-23 21:40:03 +0900 | [diff] [blame] | 27 | /* Note, we make use of the fact that the parent IRQs, IRQ_UART[0..3] |
| 28 | * are consecutive when looking up the interrupt in the demux routines. |
| 29 | */ |
Ben Dooks | be97162 | 2010-01-12 14:13:58 +0900 | [diff] [blame] | 30 | static struct s3c_uart_irq uart_irqs[] = { |
Byungho Min | c9b870e | 2009-06-23 21:40:03 +0900 | [diff] [blame] | 31 | [0] = { |
| 32 | .regs = (void *)S3C_VA_UART0, |
| 33 | .base_irq = IRQ_S3CUART_BASE0, |
| 34 | .parent_irq = IRQ_UART0, |
| 35 | }, |
| 36 | [1] = { |
| 37 | .regs = (void *)S3C_VA_UART1, |
| 38 | .base_irq = IRQ_S3CUART_BASE1, |
| 39 | .parent_irq = IRQ_UART1, |
| 40 | }, |
| 41 | [2] = { |
| 42 | .regs = (void *)S3C_VA_UART2, |
| 43 | .base_irq = IRQ_S3CUART_BASE2, |
| 44 | .parent_irq = IRQ_UART2, |
| 45 | }, |
| 46 | [3] = { |
| 47 | .regs = (void *)S3C_VA_UART3, |
| 48 | .base_irq = IRQ_S3CUART_BASE3, |
| 49 | .parent_irq = IRQ_UART3, |
| 50 | }, |
| 51 | }; |
| 52 | |
Byungho Min | c9b870e | 2009-06-23 21:40:03 +0900 | [diff] [blame] | 53 | void __init s5pc1xx_init_irq(u32 *vic_valid, int num) |
| 54 | { |
| 55 | int i; |
Byungho Min | c9b870e | 2009-06-23 21:40:03 +0900 | [diff] [blame] | 56 | |
| 57 | printk(KERN_DEBUG "%s: initialising interrupts\n", __func__); |
| 58 | |
| 59 | /* initialise the pair of VICs */ |
| 60 | for (i = 0; i < num; i++) |
| 61 | vic_init((void *)S5PC1XX_VA_VIC(i), S3C_IRQ(i * S3C_IRQ_OFFSET), |
| 62 | vic_valid[i], 0); |
| 63 | |
| 64 | /* add the timer sub-irqs */ |
| 65 | |
Ben Dooks | 47101ec | 2010-01-07 14:41:38 +0900 | [diff] [blame] | 66 | s3c_init_vic_timer_irq(IRQ_TIMER0_VIC, IRQ_TIMER0); |
| 67 | s3c_init_vic_timer_irq(IRQ_TIMER1_VIC, IRQ_TIMER1); |
| 68 | s3c_init_vic_timer_irq(IRQ_TIMER2_VIC, IRQ_TIMER2); |
| 69 | s3c_init_vic_timer_irq(IRQ_TIMER3_VIC, IRQ_TIMER3); |
| 70 | s3c_init_vic_timer_irq(IRQ_TIMER4_VIC, IRQ_TIMER4); |
Byungho Min | c9b870e | 2009-06-23 21:40:03 +0900 | [diff] [blame] | 71 | |
Ben Dooks | be97162 | 2010-01-12 14:13:58 +0900 | [diff] [blame] | 72 | s3c_init_uart_irqs(uart_irqs, ARRAY_SIZE(uart_irqs)); |
Byungho Min | c9b870e | 2009-06-23 21:40:03 +0900 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | |