diff options
Diffstat (limited to 'include/asm-arm/byteorder.h')
-rw-r--r-- | include/asm-arm/byteorder.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/asm-arm/byteorder.h b/include/asm-arm/byteorder.h new file mode 100644 index 000000000000..d648a1915c33 --- /dev/null +++ b/include/asm-arm/byteorder.h | |||
@@ -0,0 +1,33 @@ | |||
1 | /* | ||
2 | * linux/include/asm-arm/byteorder.h | ||
3 | * | ||
4 | * ARM Endian-ness. In little endian mode, the data bus is connected such | ||
5 | * that byte accesses appear as: | ||
6 | * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31 | ||
7 | * and word accesses (data or instruction) appear as: | ||
8 | * d0...d31 | ||
9 | * | ||
10 | * When in big endian mode, byte accesses appear as: | ||
11 | * 0 = d24...d31, 1 = d16...d23, 2 = d8...d15, 3 = d0...d7 | ||
12 | * and word accesses (data or instruction) appear as: | ||
13 | * d0...d31 | ||
14 | */ | ||
15 | #ifndef __ASM_ARM_BYTEORDER_H | ||
16 | #define __ASM_ARM_BYTEORDER_H | ||
17 | |||
18 | |||
19 | #include <asm/types.h> | ||
20 | |||
21 | #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) | ||
22 | # define __BYTEORDER_HAS_U64__ | ||
23 | # define __SWAB_64_THRU_32__ | ||
24 | #endif | ||
25 | |||
26 | #ifdef __ARMEB__ | ||
27 | #include <linux/byteorder/big_endian.h> | ||
28 | #else | ||
29 | #include <linux/byteorder/little_endian.h> | ||
30 | #endif | ||
31 | |||
32 | #endif | ||
33 | |||