diff --git a/arch/mips/jz4740/irq.c b/arch/mips/jz4740/irq.c
index 7ad6688f371b..8b7df9a581c2 100644
--- a/arch/mips/jz4740/irq.c
+++ b/arch/mips/jz4740/irq.c
@@ -18,14 +18,13 @@
 #include <linux/types.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
+#include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/timex.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
 
 #include <asm/io.h>
-
-#include <asm/mach-jz4740/base.h>
 #include <asm/mach-jz4740/irq.h>
 
 #include "irq.h"
@@ -114,7 +113,11 @@ static int __init ingenic_intc_of_init(struct device_node *node,
 		goto out_unmap_irq;
 
 	intc->num_chips = num_chips;
-	intc->base = ioremap(JZ4740_INTC_BASE_ADDR, 0x14);
+	intc->base = of_iomap(node, 0);
+	if (!intc->base) {
+		err = -ENODEV;
+		goto out_unmap_irq;
+	}
 
 	for (i = 0; i < num_chips; i++) {
 		/* Mask all irqs */