diff options
author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 11:28:58 +0800 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 11:28:58 +0800 |
commit | df2071bd081408318d659cd14a9cf6ff23d874c9 (patch) | |
tree | b31291b5fd4b9f84c629833afbfaa8d431857475 /arch/arm/plat-s5p/irq.c | |
parent | 97e3d94aac1c3e95bd04d1b186479a4df3663ab8 (diff) | |
parent | be1066bbcd443a65df312fdecea7e4959adedb45 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/arm/plat-s5p/irq.c')
-rw-r--r-- | arch/arm/plat-s5p/irq.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/plat-s5p/irq.c b/arch/arm/plat-s5p/irq.c new file mode 100644 index 00000000000..25e1eb6de59 --- /dev/null +++ b/arch/arm/plat-s5p/irq.c @@ -0,0 +1,72 @@ +/* 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> + +/* + * 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) +{ + int irq; + + /* initialize the VICs */ + for (irq = 0; irq < num_vic; irq++) + vic_init(VA_VIC(irq), VIC_BASE(irq), vic[irq], 0); + + 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)); +} |