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#if defined(__ARMEB__) || defined(__AARCH64EB__) 27#include <linux/byteorder/big_endian.h> 28#else 29#include <linux/byteorder/little_endian.h> 30#endif 31 32#endif 33