diff --git a/src/helper/bits.h b/src/helper/bits.h
index 00d3c0270..6151b3340 100644
--- a/src/helper/bits.h
+++ b/src/helper/bits.h
@@ -28,8 +28,12 @@
 #include <helper/types.h>
 
 #define BIT(nr)                     (1UL << (nr))
+#define BIT_ULL(nr)                 (1ULL << (nr))
 #define BITS_PER_BYTE               8
 #define BITS_PER_LONG               (BITS_PER_BYTE * sizeof(long))
+#define BITS_PER_LONG_LONG          (BITS_PER_BYTE * sizeof(long long))
+#define GENMASK(h, l)               (((~0UL) - (1UL << (l)) + 1) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
+#define GENMASK_ULL(h, l)           (((~0ULL) - (1ULL << (l)) + 1) & (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h))))
 #define BITS_TO_LONGS(nr)           DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
 #define BIT_MASK(nr)                (1UL << ((nr) % BITS_PER_LONG))
 #define BIT_WORD(nr)                ((nr) / BITS_PER_LONG)
diff --git a/src/rtos/chromium-ec.c b/src/rtos/chromium-ec.c
index 2f1a0cf3c..95a228d0d 100644
--- a/src/rtos/chromium-ec.c
+++ b/src/rtos/chromium-ec.c
@@ -11,6 +11,7 @@
 #include "config.h"
 #endif
 
+#include <helper/bits.h>
 #include <rtos/rtos.h>
 #include <target/target.h>
 #include <target/target_type.h>
@@ -20,7 +21,6 @@
 #define CROS_EC_MAX_TASKS 32
 #define CROS_EC_MAX_NAME 200
 #define CROS_EC_IDLE_STRING "<< idle >>"
-#define BIT(x) (1 << (x))
 
 struct chromium_ec_params {
 	const char *target_name;