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/* 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))