diff --git a/arch/sh/boards/mach-sdk7786/Makefile b/arch/sh/boards/mach-sdk7786/Makefile
index 50c8065deaa0..a29f19e85b63 100644
--- a/arch/sh/boards/mach-sdk7786/Makefile
+++ b/arch/sh/boards/mach-sdk7786/Makefile
@@ -1 +1 @@
-obj-y	:= setup.o fpga.o
+obj-y	:= setup.o fpga.o irq.o
diff --git a/arch/sh/boards/mach-sdk7786/irq.c b/arch/sh/boards/mach-sdk7786/irq.c
new file mode 100644
index 000000000000..46943a0da5b7
--- /dev/null
+++ b/arch/sh/boards/mach-sdk7786/irq.c
@@ -0,0 +1,48 @@
+/*
+ * SDK7786 FPGA IRQ Controller Support.
+ *
+ * Copyright (C) 2010  Matt Fleming
+ * Copyright (C) 2010  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/irq.h>
+#include <mach/fpga.h>
+#include <mach/irq.h>
+
+enum {
+	ATA_IRQ_BIT		= 1,
+	SPI_BUSY_BIT		= 2,
+	LIRQ5_BIT		= 3,
+	LIRQ6_BIT		= 4,
+	LIRQ7_BIT		= 5,
+	LIRQ8_BIT		= 6,
+	KEY_IRQ_BIT		= 7,
+	PEN_IRQ_BIT		= 8,
+	ETH_IRQ_BIT		= 9,
+	RTC_ALARM_BIT		= 10,
+	CRYSTAL_FAIL_BIT	= 12,
+	ETH_PME_BIT		= 14,
+};
+
+void __init sdk7786_init_irq(void)
+{
+	unsigned int tmp;
+
+	/* Enable priority encoding for all IRLs */
+	fpga_write_reg(fpga_read_reg(INTMSR) | 0x0303, INTMSR);
+
+	/* Clear FPGA interrupt status registers */
+	fpga_write_reg(0x0000, INTASR);
+	fpga_write_reg(0x0000, INTBSR);
+
+	/* Unmask FPGA interrupts */
+	tmp = fpga_read_reg(INTAMR);
+	tmp &= ~(1 << ETH_IRQ_BIT);
+	fpga_write_reg(tmp, INTAMR);
+
+	plat_irq_setup_pins(IRQ_MODE_IRL7654_MASK);
+	plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
+}
diff --git a/arch/sh/boards/mach-sdk7786/setup.c b/arch/sh/boards/mach-sdk7786/setup.c
index 8dbbdea9c983..3c3c9a38cfda 100644
--- a/arch/sh/boards/mach-sdk7786/setup.c
+++ b/arch/sh/boards/mach-sdk7786/setup.c
@@ -15,10 +15,11 @@
 #include <linux/i2c.h>
 #include <linux/irq.h>
 #include <linux/clk.h>
+#include <mach/fpga.h>
+#include <mach/irq.h>
 #include <asm/machvec.h>
 #include <asm/heartbeat.h>
 #include <asm/sizes.h>
-#include <mach/fpga.h>
 
 static struct resource heartbeat_resource = {
 	.start		= 0x07fff8b0,
@@ -132,41 +133,6 @@ static int __init sdk7786_devices_setup(void)
 }
 __initcall(sdk7786_devices_setup);
 
-enum {
-	ATA_IRQ_BIT		= 1,
-	SPI_BUSY_BIT		= 2,
-	LIRQ5_BIT		= 3,
-	LIRQ6_BIT		= 4,
-	LIRQ7_BIT		= 5,
-	LIRQ8_BIT		= 6,
-	KEY_IRQ_BIT		= 7,
-	PEN_IRQ_BIT		= 8,
-	ETH_IRQ_BIT		= 9,
-	RTC_ALARM_BIT		= 10,
-	CRYSTAL_FAIL_BIT	= 12,
-	ETH_PME_BIT		= 14,
-};
-
-static void __init init_sdk7786_IRQ(void)
-{
-	unsigned int tmp;
-
-	/* Enable priority encoding for all IRLs */
-	fpga_write_reg(fpga_read_reg(INTMSR) | 0x0303, INTMSR);
-
-	/* Clear FPGA interrupt status registers */
-	fpga_write_reg(0x0000, INTASR);
-	fpga_write_reg(0x0000, INTBSR);
-
-	/* Unmask FPGA interrupts */
-	tmp = fpga_read_reg(INTAMR);
-	tmp &= ~(1 << ETH_IRQ_BIT);
-	fpga_write_reg(tmp, INTAMR);
-
-	plat_irq_setup_pins(IRQ_MODE_IRL7654_MASK);
-	plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
-}
-
 static int sdk7786_mode_pins(void)
 {
 	return fpga_read_reg(MODSWR);
@@ -211,5 +177,5 @@ static struct sh_machine_vector mv_sdk7786 __initmv = {
 	.mv_setup		= sdk7786_setup,
 	.mv_mode_pins		= sdk7786_mode_pins,
 	.mv_clk_init		= sdk7786_clk_init,
-	.mv_init_irq		= init_sdk7786_IRQ,
+	.mv_init_irq		= sdk7786_init_irq,
 };
diff --git a/arch/sh/include/mach-sdk7786/mach/irq.h b/arch/sh/include/mach-sdk7786/mach/irq.h
new file mode 100644
index 000000000000..0f584635e6e5
--- /dev/null
+++ b/arch/sh/include/mach-sdk7786/mach/irq.h
@@ -0,0 +1,7 @@
+#ifndef __MACH_SDK7786_IRQ_H
+#define __MACH_SDK7786_IRQ_H
+
+/* arch/sh/boards/mach-sdk7786/irq.c */
+extern void sdk7786_init_irq(void);
+
+#endif /* __MACH_SDK7786_IRQ_H */