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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Copyright © 2001-2010 David Woodhouse <dwmw2@infradead.org>4 */5 6#include <asm/byteorder.h>7 8#define CFI_HOST_ENDIAN 19#define CFI_LITTLE_ENDIAN 210#define CFI_BIG_ENDIAN 311 12#if !defined(CONFIG_MTD_CFI_ADV_OPTIONS) || defined(CONFIG_MTD_CFI_NOSWAP)13#define CFI_DEFAULT_ENDIAN CFI_HOST_ENDIAN14#elif defined(CONFIG_MTD_CFI_LE_BYTE_SWAP)15#define CFI_DEFAULT_ENDIAN CFI_LITTLE_ENDIAN16#elif defined(CONFIG_MTD_CFI_BE_BYTE_SWAP)17#define CFI_DEFAULT_ENDIAN CFI_BIG_ENDIAN18#else19#error No CFI endianness defined20#endif21 22#define cfi_default(s) ((s)?:CFI_DEFAULT_ENDIAN)23#define cfi_be(s) (cfi_default(s) == CFI_BIG_ENDIAN)24#define cfi_le(s) (cfi_default(s) == CFI_LITTLE_ENDIAN)25#define cfi_host(s) (cfi_default(s) == CFI_HOST_ENDIAN)26 27#define cpu_to_cfi8(map, x) (x)28#define cfi8_to_cpu(map, x) (x)29#define cpu_to_cfi16(map, x) _cpu_to_cfi(16, (map)->swap, (x))30#define cpu_to_cfi32(map, x) _cpu_to_cfi(32, (map)->swap, (x))31#define cpu_to_cfi64(map, x) _cpu_to_cfi(64, (map)->swap, (x))32#define cfi16_to_cpu(map, x) _cfi_to_cpu(16, (map)->swap, (x))33#define cfi32_to_cpu(map, x) _cfi_to_cpu(32, (map)->swap, (x))34#define cfi64_to_cpu(map, x) _cfi_to_cpu(64, (map)->swap, (x))35 36#define _cpu_to_cfi(w, s, x) (cfi_host(s)?(x):_swap_to_cfi(w, s, x))37#define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))38#define _swap_to_cfi(w, s, x) (cfi_be(s)?cpu_to_be##w(x):cpu_to_le##w(x))39#define _swap_to_cpu(w, s, x) (cfi_be(s)?be##w##_to_cpu(x):le##w##_to_cpu(x))40