| /* SPDX-License-Identifier: GPL-2.0-or-later */ | |
| /* | |
| * Copyright © 2001-2010 David Woodhouse <dwmw2@infradead.org> | |
| */ | |
| #include <asm/byteorder.h> | |
| #define CFI_HOST_ENDIAN 1 | |
| #define CFI_LITTLE_ENDIAN 2 | |
| #define CFI_BIG_ENDIAN 3 | |
| #if !defined(CONFIG_MTD_CFI_ADV_OPTIONS) || defined(CONFIG_MTD_CFI_NOSWAP) | |
| #define CFI_DEFAULT_ENDIAN CFI_HOST_ENDIAN | |
| #elif defined(CONFIG_MTD_CFI_LE_BYTE_SWAP) | |
| #define CFI_DEFAULT_ENDIAN CFI_LITTLE_ENDIAN | |
| #elif defined(CONFIG_MTD_CFI_BE_BYTE_SWAP) | |
| #define CFI_DEFAULT_ENDIAN CFI_BIG_ENDIAN | |
| #else | |
| #error No CFI endianness defined | |
| #endif | |
| #define cfi_default(s) ((s)?:CFI_DEFAULT_ENDIAN) | |
| #define cfi_be(s) (cfi_default(s) == CFI_BIG_ENDIAN) | |
| #define cfi_le(s) (cfi_default(s) == CFI_LITTLE_ENDIAN) | |
| #define cfi_host(s) (cfi_default(s) == CFI_HOST_ENDIAN) | |
| #define cpu_to_cfi8(map, x) (x) | |
| #define cfi8_to_cpu(map, x) (x) | |
| #define cpu_to_cfi16(map, x) _cpu_to_cfi(16, (map)->swap, (x)) | |
| #define cpu_to_cfi32(map, x) _cpu_to_cfi(32, (map)->swap, (x)) | |
| #define cpu_to_cfi64(map, x) _cpu_to_cfi(64, (map)->swap, (x)) | |
| #define cfi16_to_cpu(map, x) _cfi_to_cpu(16, (map)->swap, (x)) | |
| #define cfi32_to_cpu(map, x) _cfi_to_cpu(32, (map)->swap, (x)) | |
| #define cfi64_to_cpu(map, x) _cfi_to_cpu(64, (map)->swap, (x)) | |
| #define _cpu_to_cfi(w, s, x) (cfi_host(s)?(x):_swap_to_cfi(w, s, x)) | |
| #define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x)) | |
| #define _swap_to_cfi(w, s, x) (cfi_be(s)?cpu_to_be##w(x):cpu_to_le##w(x)) | |
| #define _swap_to_cpu(w, s, x) (cfi_be(s)?be##w##_to_cpu(x):le##w##_to_cpu(x)) |