ARM: OMAP2: Register the L4 io bus to boot OMAP2

This patch enables OMAP2 to boot.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 5a4091f..69c8174 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -42,6 +42,12 @@
 		.length		= L3_24XX_SIZE,
 		.type		= MT_DEVICE
 	},
+	{
+		.virtual        = L4_24XX_VIRT,
+		.pfn            = __phys_to_pfn(L4_24XX_PHYS),
+		.length         = L4_24XX_SIZE,
+		.type           = MT_DEVICE
+	},
 #ifdef CONFIG_ARCH_OMAP2430
 	{
 		.virtual	= L4_WK_243X_VIRT,