diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index ebb73f1334861e112dc28f1fddfff6b0a52d0007..1b9290c0ed5e7c57b1e595f29dad073e753cc328 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -136,9 +136,13 @@ static struct sys_device lubbock_irq_device = {
 
 static int __init lubbock_irq_device_init(void)
 {
-	int ret = sysdev_class_register(&lubbock_irq_sysclass);
-	if (ret == 0)
-		ret = sysdev_register(&lubbock_irq_device);
+	int ret = -ENODEV;
+
+	if (machine_is_lubbock()) {
+		ret = sysdev_class_register(&lubbock_irq_sysclass);
+		if (ret == 0)
+			ret = sysdev_register(&lubbock_irq_device);
+	}
 	return ret;
 }
 
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index a5db00c38f1f309fc315e2d2603e35a9bad14b82..237459bf67c62535d89236eb5104d9732534fba5 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -131,9 +131,13 @@ static struct sys_device mainstone_irq_device = {
 
 static int __init mainstone_irq_device_init(void)
 {
-	int ret = sysdev_class_register(&mainstone_irq_sysclass);
-	if (ret == 0)
-		ret = sysdev_register(&mainstone_irq_device);
+	int ret = -ENODEV;
+
+	if (machine_is_mainstone()) {
+		ret = sysdev_class_register(&mainstone_irq_sysclass);
+		if (ret == 0)
+			ret = sysdev_register(&mainstone_irq_device);
+	}
 	return ret;
 }