162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright © 2001-2010 David Woodhouse <dwmw2@infradead.org> 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#include <asm/byteorder.h> 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#define CFI_HOST_ENDIAN 1 962306a36Sopenharmony_ci#define CFI_LITTLE_ENDIAN 2 1062306a36Sopenharmony_ci#define CFI_BIG_ENDIAN 3 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci#if !defined(CONFIG_MTD_CFI_ADV_OPTIONS) || defined(CONFIG_MTD_CFI_NOSWAP) 1362306a36Sopenharmony_ci#define CFI_DEFAULT_ENDIAN CFI_HOST_ENDIAN 1462306a36Sopenharmony_ci#elif defined(CONFIG_MTD_CFI_LE_BYTE_SWAP) 1562306a36Sopenharmony_ci#define CFI_DEFAULT_ENDIAN CFI_LITTLE_ENDIAN 1662306a36Sopenharmony_ci#elif defined(CONFIG_MTD_CFI_BE_BYTE_SWAP) 1762306a36Sopenharmony_ci#define CFI_DEFAULT_ENDIAN CFI_BIG_ENDIAN 1862306a36Sopenharmony_ci#else 1962306a36Sopenharmony_ci#error No CFI endianness defined 2062306a36Sopenharmony_ci#endif 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci#define cfi_default(s) ((s)?:CFI_DEFAULT_ENDIAN) 2362306a36Sopenharmony_ci#define cfi_be(s) (cfi_default(s) == CFI_BIG_ENDIAN) 2462306a36Sopenharmony_ci#define cfi_le(s) (cfi_default(s) == CFI_LITTLE_ENDIAN) 2562306a36Sopenharmony_ci#define cfi_host(s) (cfi_default(s) == CFI_HOST_ENDIAN) 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci#define cpu_to_cfi8(map, x) (x) 2862306a36Sopenharmony_ci#define cfi8_to_cpu(map, x) (x) 2962306a36Sopenharmony_ci#define cpu_to_cfi16(map, x) _cpu_to_cfi(16, (map)->swap, (x)) 3062306a36Sopenharmony_ci#define cpu_to_cfi32(map, x) _cpu_to_cfi(32, (map)->swap, (x)) 3162306a36Sopenharmony_ci#define cpu_to_cfi64(map, x) _cpu_to_cfi(64, (map)->swap, (x)) 3262306a36Sopenharmony_ci#define cfi16_to_cpu(map, x) _cfi_to_cpu(16, (map)->swap, (x)) 3362306a36Sopenharmony_ci#define cfi32_to_cpu(map, x) _cfi_to_cpu(32, (map)->swap, (x)) 3462306a36Sopenharmony_ci#define cfi64_to_cpu(map, x) _cfi_to_cpu(64, (map)->swap, (x)) 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci#define _cpu_to_cfi(w, s, x) (cfi_host(s)?(x):_swap_to_cfi(w, s, x)) 3762306a36Sopenharmony_ci#define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x)) 3862306a36Sopenharmony_ci#define _swap_to_cfi(w, s, x) (cfi_be(s)?cpu_to_be##w(x):cpu_to_le##w(x)) 3962306a36Sopenharmony_ci#define _swap_to_cpu(w, s, x) (cfi_be(s)?be##w##_to_cpu(x):le##w##_to_cpu(x)) 40