diff --git a/arch/arm/mach-rk2928/include/mach/irqs.h b/arch/arm/mach-rk2928/include/mach/irqs.h
index 1a7d885c128e..cbfa71920397 100644
--- a/arch/arm/mach-rk2928/include/mach/irqs.h
+++ b/arch/arm/mach-rk2928/include/mach/irqs.h
@@ -66,4 +66,6 @@
 #define NR_BOARD_IRQS                   64
 #define NR_IRQS                         (NR_GIC_IRQS + NR_GPIO_IRQS + NR_BOARD_IRQS)
 
+#define IRQ_BOARD_START                 (NR_GIC_IRQS + NR_GPIO_IRQS)
+
 #endif