1 #ifndef _LIBFDT_ENV_H 2 #define _LIBFDT_ENV_H 3 4 #include <stddef.h> 5 #include <stdint.h> 6 #include <string.h> 7 8 #define EXTRACT_BYTE(n) ((unsigned long long)((uint8_t *)&x)[n]) 9 static inline uint16_t fdt16_to_cpu(uint16_t x) 10 { 11 return (EXTRACT_BYTE(0) << 8) | EXTRACT_BYTE(1); 12 } 13 #define cpu_to_fdt16(x) fdt16_to_cpu(x) 14 15 static inline uint32_t fdt32_to_cpu(uint32_t x) 16 { 17 return (EXTRACT_BYTE(0) << 24) | (EXTRACT_BYTE(1) << 16) | (EXTRACT_BYTE(2) << 8) | EXTRACT_BYTE(3); 18 } 19 #define cpu_to_fdt32(x) fdt32_to_cpu(x) 20 21 static inline uint64_t fdt64_to_cpu(uint64_t x) 22 { 23 return (EXTRACT_BYTE(0) << 56) | (EXTRACT_BYTE(1) << 48) | (EXTRACT_BYTE(2) << 40) | (EXTRACT_BYTE(3) << 32) 24 | (EXTRACT_BYTE(4) << 24) | (EXTRACT_BYTE(5) << 16) | (EXTRACT_BYTE(6) << 8) | EXTRACT_BYTE(7); 25 } 26 #define cpu_to_fdt64(x) fdt64_to_cpu(x) 27 #undef EXTRACT_BYTE 28 29 #endif /* _LIBFDT_ENV_H */ 30