| David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 1 | #ifndef _LIBFDT_ENV_H |
| 2 | #define _LIBFDT_ENV_H |
| 3 | |
| 4 | #include <stddef.h> |
| 5 | #include <stdint.h> |
| 6 | #include <string.h> |
| 7 | |
| Stephen Warren | cd29672 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 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 | |
| David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 15 | static inline uint32_t fdt32_to_cpu(uint32_t x) |
| 16 | { |
| Stephen Warren | cd29672 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 17 | return (EXTRACT_BYTE(0) << 24) | (EXTRACT_BYTE(1) << 16) | (EXTRACT_BYTE(2) << 8) | EXTRACT_BYTE(3); |
| David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 18 | } |
| 19 | #define cpu_to_fdt32(x) fdt32_to_cpu(x) |
| 20 | |
| 21 | static inline uint64_t fdt64_to_cpu(uint64_t x) |
| 22 | { |
| Stephen Warren | cd29672 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 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); |
| David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 25 | } |
| 26 | #define cpu_to_fdt64(x) fdt64_to_cpu(x) |
| Stephen Warren | cd29672 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 27 | #undef EXTRACT_BYTE |
| David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 28 | |
| 29 | #endif /* _LIBFDT_ENV_H */ |