diff --git a/drivers/mailbox/pl320-ipc.c b/drivers/mailbox/pl320-ipc.c
index 0b807bbcbde0..606f26a2a6fd 100644
--- a/drivers/mailbox/pl320-ipc.c
+++ b/drivers/mailbox/pl320-ipc.c
@@ -152,7 +152,7 @@ static int pl320_probe(struct amba_device *adev, const struct amba_id *id)
 	return ret;
 }
 
-static struct amba_id pl320_ids[] = {
+static const struct amba_id pl320_ids[] = {
 	{
 		.id	= 0x00041320,
 		.mask	= 0x000fffff,