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1da177e4 LT |
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 |