| David Woodhouse | a1452a3 | 2010-08-08 20:58:20 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2001-2010 David Woodhouse <dwmw2@infradead.org> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | * |
| 18 | */ |
| 19 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <asm/byteorder.h> |
| 21 | |
| 22 | #ifndef CONFIG_MTD_CFI_ADV_OPTIONS |
| 23 | |
| 24 | #define CFI_HOST_ENDIAN |
| 25 | |
| 26 | #else |
| 27 | |
| 28 | #ifdef CONFIG_MTD_CFI_NOSWAP |
| 29 | #define CFI_HOST_ENDIAN |
| 30 | #endif |
| 31 | |
| 32 | #ifdef CONFIG_MTD_CFI_LE_BYTE_SWAP |
| 33 | #define CFI_LITTLE_ENDIAN |
| 34 | #endif |
| 35 | |
| 36 | #ifdef CONFIG_MTD_CFI_BE_BYTE_SWAP |
| 37 | #define CFI_BIG_ENDIAN |
| 38 | #endif |
| 39 | |
| 40 | #endif |
| 41 | |
| 42 | #if defined(CFI_LITTLE_ENDIAN) |
| 43 | #define cpu_to_cfi8(x) (x) |
| 44 | #define cfi8_to_cpu(x) (x) |
| 45 | #define cpu_to_cfi16(x) cpu_to_le16(x) |
| 46 | #define cpu_to_cfi32(x) cpu_to_le32(x) |
| 47 | #define cpu_to_cfi64(x) cpu_to_le64(x) |
| 48 | #define cfi16_to_cpu(x) le16_to_cpu(x) |
| 49 | #define cfi32_to_cpu(x) le32_to_cpu(x) |
| 50 | #define cfi64_to_cpu(x) le64_to_cpu(x) |
| 51 | #elif defined (CFI_BIG_ENDIAN) |
| 52 | #define cpu_to_cfi8(x) (x) |
| 53 | #define cfi8_to_cpu(x) (x) |
| 54 | #define cpu_to_cfi16(x) cpu_to_be16(x) |
| 55 | #define cpu_to_cfi32(x) cpu_to_be32(x) |
| 56 | #define cpu_to_cfi64(x) cpu_to_be64(x) |
| 57 | #define cfi16_to_cpu(x) be16_to_cpu(x) |
| 58 | #define cfi32_to_cpu(x) be32_to_cpu(x) |
| 59 | #define cfi64_to_cpu(x) be64_to_cpu(x) |
| 60 | #elif defined (CFI_HOST_ENDIAN) |
| 61 | #define cpu_to_cfi8(x) (x) |
| 62 | #define cfi8_to_cpu(x) (x) |
| 63 | #define cpu_to_cfi16(x) (x) |
| 64 | #define cpu_to_cfi32(x) (x) |
| 65 | #define cpu_to_cfi64(x) (x) |
| 66 | #define cfi16_to_cpu(x) (x) |
| 67 | #define cfi32_to_cpu(x) (x) |
| 68 | #define cfi64_to_cpu(x) (x) |
| 69 | #else |
| 70 | #error No CFI endianness defined |
| 71 | #endif |