diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index be3f923d3c43..b7efdc8119d4 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -45,6 +45,7 @@
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 
+#include <asm/mach-types.h>
 #include <mach/hardware.h>
 #include <mach/gpio.h>
 
@@ -268,6 +269,9 @@ static int __init at91sam9g20ek_init(void)
 	struct ssc_device *ssc = NULL;
 	int ret;
 
+	if (!machine_is_at91sam9g20ek())
+		return -ENODEV;
+
 	/*
 	 * Request SSC device
 	 */