1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * linux/include/asm-arm/byteorder.h 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * ARM Endian-ness. In little endian mode, the data bus is connected such 5*4882a593Smuzhiyun * that byte accesses appear as: 6*4882a593Smuzhiyun * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31 7*4882a593Smuzhiyun * and word accesses (data or instruction) appear as: 8*4882a593Smuzhiyun * d0...d31 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * When in big endian mode, byte accesses appear as: 11*4882a593Smuzhiyun * 0 = d24...d31, 1 = d16...d23, 2 = d8...d15, 3 = d0...d7 12*4882a593Smuzhiyun * and word accesses (data or instruction) appear as: 13*4882a593Smuzhiyun * d0...d31 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun #ifndef __ASM_ARM_BYTEORDER_H 16*4882a593Smuzhiyun #define __ASM_ARM_BYTEORDER_H 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #include <asm/types.h> 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) 22*4882a593Smuzhiyun # define __BYTEORDER_HAS_U64__ 23*4882a593Smuzhiyun # define __SWAB_64_THRU_32__ 24*4882a593Smuzhiyun #endif 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #if defined(__ARMEB__) || defined(__AARCH64EB__) 27*4882a593Smuzhiyun #include <linux/byteorder/big_endian.h> 28*4882a593Smuzhiyun #else 29*4882a593Smuzhiyun #include <linux/byteorder/little_endian.h> 30*4882a593Smuzhiyun #endif 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #endif 33