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diff --git a/target/linux/adm8668/files-3.14/arch/mips/adm8668/irq.c b/target/linux/adm8668/files-3.14/arch/mips/adm8668/irq.c
deleted file mode 100644
index 9d3b2b9b83..0000000000
--- a/target/linux/adm8668/files-3.14/arch/mips/adm8668/irq.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
- * Copyright (C) 2012 Florian Fainelli <florian@openwrt.org>
- *
- * 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/init.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/pm.h>
-#include <linux/irq.h>
-#include <asm/mipsregs.h>
-#include <asm/irq_cpu.h>
-#include <asm/irq.h>
-#include <adm8668.h>
-
-/* interrupt controller */
-#define IRQ_STATUS_REG		0x00	/* Read */
-#define IRQ_ENABLE_REG		0x08	/* Read/Write */
-#define IRQ_DISABLE_REG		0x0C	/* Write */
-
-#define IRQ_MASK		0xffff
-
-static inline void intc_write_reg(u32 val, unsigned int reg)
-{
-	void __iomem *base = (void __iomem *)KSEG1ADDR(ADM8668_INTC_BASE);
-
-	__raw_writel(val, base + reg);
-}
-
-static inline u32 intc_read_reg(unsigned int reg)
-{
-	void __iomem *base = (void __iomem *)KSEG1ADDR(ADM8668_INTC_BASE);
-
-	return __raw_readl(base + reg);
-}
-
-static void adm8668_irq_cascade(void)
-{
-	int irq;
-	u32 intsrc;
-
-	intsrc = intc_read_reg(IRQ_STATUS_REG) & IRQ_MASK;
-	if (intsrc) {
-		irq = fls(intsrc) - 1;
-		do_IRQ(irq);
-	} else
-		spurious_interrupt();
-}
-
-/*
- * System irq dispatch
- */
-void plat_irq_dispatch(void)
-{
-	unsigned int pending;
-
-	pending = read_c0_cause() & read_c0_status() & ST0_IM;
-
-	/* timer interrupt, that we renumbered */
-	if (pending & STATUSF_IP7)
-		do_IRQ(MIPS_CPU_IRQ_BASE + 7);
-	else if (pending & STATUSF_IP2)
-		adm8668_irq_cascade();
-	else
-		spurious_interrupt();
-}
-
-/*
- * enable 8668 irq
- */
-static void enable_adm8668_irq(struct irq_data *d)
-{
-	intc_write_reg((1 << d->irq), IRQ_ENABLE_REG);
-}
-
-
-static void ack_adm8668_irq(struct irq_data *d)
-{
-	intc_write_reg((1 << d->irq), IRQ_DISABLE_REG);
-}
-
-/*
- * system irq type
- */
-
-static struct irq_chip adm8668_irq_type = {
-	.name = "adm8668",
-	.irq_ack = ack_adm8668_irq,
-	.irq_mask = ack_adm8668_irq,
-	.irq_unmask = enable_adm8668_irq
-};
-
-/*
- * irq init
- */
-static void __init init_adm8668_irqs(void)
-{
-	int i;
-
-	/* disable all interrupts for the moment */
-	intc_write_reg(IRQ_MASK, IRQ_DISABLE_REG);
-
-	for (i = 0; i <= ADM8668_IRQ_MAX; i++)
-		irq_set_chip_and_handler(i, &adm8668_irq_type,
-			handle_level_irq);
-
-	/* hw0 is where our interrupts are uh.. interrupted at. */
-	set_c0_status(IE_IRQ0);
-}
-
-/*
- * system init
- */
-void __init arch_init_irq(void)
-{
-	mips_cpu_irq_init();
-	init_adm8668_irqs();
-}