diff --git a/arch/arm/mach-keystone/init.c b/arch/arm/mach-keystone/init.c
index d947d40..88e8912 100644
--- a/arch/arm/mach-keystone/init.c
+++ b/arch/arm/mach-keystone/init.c
@@ -16,6 +16,7 @@
 #include <asm/arch/clock.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/psc_defs.h>
+#include <linux/bitops.h>
 
 #define MAX_PCI_PORTS		2
 enum pci_mode	{