[PATCH v3 1/3] libfdt: Add fdt16_to_cpu utility function

[Anton Staaf <robotboy-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>]

This utility routine will be used in the variable size cell literal
append code.  It is a straightforward adaptation of the fdt32_to_cpu
function.

Signed-off-by: Anton Staaf <robotboy-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
Cc: Jon Loeliger <jdl-CYoMK+44s/E@public.gmane.org>
Cc: David Gibson <david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+@public.gmane.org>
Cc: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
---
 libfdt/libfdt_env.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/libfdt/libfdt_env.h b/libfdt/libfdt_env.h
index 449bf60..da952e7 100644
--- a/libfdt/libfdt_env.h
+++ b/libfdt/libfdt_env.h
@@ -6,6 +6,12 @@
 #include <string.h>
 
 #define _B(n)	((unsigned long long)((uint8_t *)&x)[n])
+static inline uint16_t fdt16_to_cpu(uint16_t x)
+{
+	return (_B(0) << 8) | _B(1);
+}
+#define cpu_to_fdt16(x) fdt16_to_cpu(x)
+
 static inline uint32_t fdt32_to_cpu(uint32_t x)
 {
 	return (_B(0) << 24) | (_B(1) << 16) | (_B(2) << 8) | _B(3);
-- 
1.7.3.1