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authorBen Dooks <ben-linux@fluff.org>2010-01-26 11:07:23 +0900
committerBen Dooks <ben-linux@fluff.org>2010-02-20 22:32:00 +0000
commited618aff8a952f712caf1d475e0947a32a8b6606 (patch)
treed106f5b5c24e42c6498c3a8a7340ba74ba62a4a3 /arch/arm/mach-s3c64xx/irq.c
parent3501c9ae9fc5414d09c9a8d3a5452d2b167db916 (diff)
ARM: S3C64XX: Move IRQ support into mach-s3c64xx
Move IRQ support to mach-s3c64xx as it is unlikely to be re-used outside this machine. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/mach-s3c64xx/irq.c')
-rw-r--r--arch/arm/mach-s3c64xx/irq.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c64xx/irq.c b/arch/arm/mach-s3c64xx/irq.c
new file mode 100644
index 00000000000..67a145d440f
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/irq.c
@@ -0,0 +1,69 @@
+/* arch/arm/plat-s3c64xx/irq.c
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ * http://armlinux.simtec.co.uk/
+ *
+ * S3C64XX - 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/serial_core.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>
+
+static struct s3c_uart_irq uart_irqs[] = {
+ [0] = {
+ .regs = S3C_VA_UART0,
+ .base_irq = IRQ_S3CUART_BASE0,
+ .parent_irq = IRQ_UART0,
+ },
+ [1] = {
+ .regs = S3C_VA_UART1,
+ .base_irq = IRQ_S3CUART_BASE1,
+ .parent_irq = IRQ_UART1,
+ },
+ [2] = {
+ .regs = S3C_VA_UART2,
+ .base_irq = IRQ_S3CUART_BASE2,
+ .parent_irq = IRQ_UART2,
+ },
+ [3] = {
+ .regs = S3C_VA_UART3,
+ .base_irq = IRQ_S3CUART_BASE3,
+ .parent_irq = IRQ_UART3,
+ },
+};
+
+
+void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid)
+{
+ printk(KERN_DEBUG "%s: initialising interrupts\n", __func__);
+
+ /* initialise the pair of VICs */
+ vic_init(VA_VIC0, IRQ_VIC0_BASE, vic0_valid, 0);
+ vic_init(VA_VIC1, IRQ_VIC1_BASE, vic1_valid, 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));
+}