diff --git a/drivers/mtd/spi-nor/otp.c b/drivers/mtd/spi-nor/otp.c
index 9a729aa3452d..7d0b145d78d8 100644
--- a/drivers/mtd/spi-nor/otp.c
+++ b/drivers/mtd/spi-nor/otp.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/log2.h>
+#include <linux/math64.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/spi-nor.h>
 
diff --git a/drivers/mtd/spi-nor/swp.c b/drivers/mtd/spi-nor/swp.c
index e48c3cff247a..9c9328478d8a 100644
--- a/drivers/mtd/spi-nor/swp.c
+++ b/drivers/mtd/spi-nor/swp.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2005, Intec Automation Inc.
  * Copyright (C) 2014, Freescale Semiconductor, Inc.
  */
+#include <linux/math64.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/spi-nor.h>