text: #ifndef _LIBFDT_ENV_H
  #define _LIBFDT_ENV_H
  
  #include <stddef.h>
  #include <stdint.h>
  #include <string.h>
  
  #define _B(n)	((unsigned long long)((uint8_t *)&x)[n])
  static inline uint32_t fdt32_to_cpu(uint32_t x)
  {
  	return (_B(0) << 24) | (_B(1) << 16) | (_B(2) << 8) | _B(3);
  }
  #define cpu_to_fdt32(x) fdt32_to_cpu(x)
  
  static inline uint64_t fdt64_to_cpu(uint64_t x)
  {
  	return (_B(0) << 56) | (_B(1) << 48) | (_B(2) << 40) | (_B(3) << 32)
  		| (_B(4) << 24) | (_B(5) << 16) | (_B(6) << 8) | _B(7);
  }
  #define cpu_to_fdt64(x) fdt64_to_cpu(x)
  #undef _B
  
  #endif /* _LIBFDT_ENV_H */
  