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Diffstat (limited to 'arch/arm/plat-s5p/irq.c')
-rw-r--r--arch/arm/plat-s5p/irq.c72
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 000000000000..25e1eb6de59e
--- /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));
+}