diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 40562dd..3d18349 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -46,6 +46,7 @@
 #include "clockdomains.h"
 
 #include <plat/omap_hwmod.h>
+#include <plat/multi.h>
 
 /*
  * The machine specific code may provide the extra mapping besides the
@@ -311,6 +312,25 @@
 	return v;
 }
 
+/*
+ * Initialize asm_irq_base for entry-macro.S
+ */
+static inline void omap_irq_base_init(void)
+{
+	extern void __iomem *omap_irq_base;
+
+#ifdef MULTI_OMAP2
+	if (cpu_is_omap242x())
+		omap_irq_base = OMAP2_L4_IO_ADDRESS(OMAP24XX_IC_BASE);
+	else if (cpu_is_omap34xx())
+		omap_irq_base = OMAP2_L4_IO_ADDRESS(OMAP34XX_IC_BASE);
+	else if (cpu_is_omap44xx())
+		omap_irq_base = OMAP2_L4_IO_ADDRESS(OMAP44XX_GIC_CPU_BASE);
+	else
+		pr_err("Could not initialize omap_irq_base\n");
+#endif
+}
+
 void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
 				 struct omap_sdrc_params *sdrc_cs1)
 {
@@ -352,4 +372,6 @@
 		_omap2_init_reprogram_sdrc();
 	}
 	gpmc_init();
+
+	omap_irq_base_init();
 }