diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 18ad93160abbc5fca7bf68ae3dba578c7f2f22b9..935e36c3a5e944748dc295f4f7816afb5aaedf68 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -141,7 +141,7 @@ static inline void omap_init_camera(void)
 #define MBOX_REG_SIZE   0x120
 
 #ifdef CONFIG_ARCH_OMAP2
-static struct resource omap_mbox_resources[] = {
+static struct resource omap2_mbox_resources[] = {
 	{
 		.start		= OMAP24XX_MAILBOX_BASE,
 		.end		= OMAP24XX_MAILBOX_BASE + MBOX_REG_SIZE - 1,
@@ -156,10 +156,14 @@ static struct resource omap_mbox_resources[] = {
 		.flags		= IORESOURCE_IRQ,
 	},
 };
+static int omap2_mbox_resources_sz = ARRAY_SIZE(omap2_mbox_resources);
+#else
+#define omap2_mbox_resources		NULL
+#define omap2_mbox_resources_sz		0
 #endif
 
 #ifdef CONFIG_ARCH_OMAP3
-static struct resource omap_mbox_resources[] = {
+static struct resource omap3_mbox_resources[] = {
 	{
 		.start		= OMAP34XX_MAILBOX_BASE,
 		.end		= OMAP34XX_MAILBOX_BASE + MBOX_REG_SIZE - 1,
@@ -170,12 +174,16 @@ static struct resource omap_mbox_resources[] = {
 		.flags		= IORESOURCE_IRQ,
 	},
 };
+static int omap3_mbox_resources_sz = ARRAY_SIZE(omap3_mbox_resources);
+#else
+#define omap3_mbox_resources		NULL
+#define omap3_mbox_resources_sz		0
 #endif
 
 #ifdef CONFIG_ARCH_OMAP4
 
 #define OMAP4_MBOX_REG_SIZE	0x130
-static struct resource omap_mbox_resources[] = {
+static struct resource omap4_mbox_resources[] = {
 	{
 		.start          = OMAP44XX_MAILBOX_BASE,
 		.end            = OMAP44XX_MAILBOX_BASE +
@@ -187,6 +195,10 @@ static struct resource omap_mbox_resources[] = {
 		.flags          = IORESOURCE_IRQ,
 	},
 };
+static int omap4_mbox_resources_sz = ARRAY_SIZE(omap4_mbox_resources);
+#else
+#define omap4_mbox_resources		NULL
+#define omap4_mbox_resources_sz		0
 #endif
 
 static struct platform_device mbox_device = {
@@ -196,9 +208,15 @@ static struct platform_device mbox_device = {
 
 static inline void omap_init_mbox(void)
 {
-	if (cpu_is_omap2420() || cpu_is_omap3430() || cpu_is_omap44xx()) {
-		mbox_device.num_resources = ARRAY_SIZE(omap_mbox_resources);
-		mbox_device.resource = omap_mbox_resources;
+	if (cpu_is_omap24xx()) {
+		mbox_device.resource = omap2_mbox_resources;
+		mbox_device.num_resources = omap2_mbox_resources_sz;
+	} else if (cpu_is_omap34xx()) {
+		mbox_device.resource = omap3_mbox_resources;
+		mbox_device.num_resources = omap3_mbox_resources_sz;
+	} else if (cpu_is_omap44xx()) {
+		mbox_device.resource = omap4_mbox_resources;
+		mbox_device.num_resources = omap4_mbox_resources_sz;
 	} else {
 		pr_err("%s: platform not supported\n", __func__);
 		return;