diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/entry-macro.S b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/entry-macro.S
index eeff72ca643bd9d35df003d1fe55458e75b37261..58ad30ea0a151010611883dd470b9eba629cbb14 100644
--- a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/entry-macro.S
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/entry-macro.S
@@ -11,8 +11,8 @@
 		.endm
 
 		.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
-		mov	\tmp, #0x40
-		ldr	\irqstat, [\base, \tmp]
+		mov	\tmp, #MCS814X_IRQ_STS0	 @ load tmp with STS0 register offset
+		ldr	\irqstat, [\base, \tmp]	 @ load value at base + tmp
 		tst	\irqstat, \irqstat       @ test if no active IRQ's
 		beq	1002f                    @ if no active irqs return with status 0
 		mov	\irqnr, #0               @ start from irq zero
@@ -23,7 +23,7 @@
 		moveq   \tmp,   \tmp, lsl #1     @ shift mask one to left
 		beq     1001b                    @ if  zero then loop again
 		mov     \irqstat, \tmp           @ save the return mask
-		mov	\tmp, #0x00		 @ ICR offset
+		mov	\tmp, #MCS814X_IRQ_STS0  @ load tmp with ICR offset
 		str     \irqstat,  [\base, \tmp] @ clear irq with selected mask
 1002:
                 .endm
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/hardware.h b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/hardware.h
index 75343c6340b174035f0f6c8d9e8684fa1a854042..6fb243c37eafbcd96eed32cb48d79c5cd112310f 100644
--- a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/hardware.h
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/hardware.h
@@ -14,6 +14,12 @@
 #define MCS814X_IO_START	0x40000000
 #define MCS814X_IO_SIZE		0x00100000
 
+/* IRQ controller register offset */
+#define MCS814X_IRQ_ICR		0x00
+#define MCS814X_IRQ_ISR		0x04
+#define MCS814X_IRQ_MASK	0x20
+#define MCS814X_IRQ_STS0	0x40
+
 #define _PHYS_CONFADDR		0x40000000
 #define _VIRT_CONFADDR		MCS814X_IO_BASE
 
diff --git a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c
index c8a3c18cfb6aa51f38ad87f074791d3875754766..207a09c8343ed3b268a0806a6ce144f5f40b04b1 100644
--- a/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c
+++ b/target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/irq.c
@@ -14,11 +14,7 @@
 
 #include <asm/exception.h>
 #include <asm/mach/irq.h>
-
-#define MCS814X_IRQ_ICR		0x00
-#define MCS814X_IRQ_ISR		0x04
-#define MCS814X_IRQ_MASK	0x20
-#define MCS814X_IRQ_STS0	0x40
+#include <mach/hardware.h>
 
 void __iomem *mcs814x_intc_base;