/* * Copyright © 2001-2010 David Woodhouse <dwmw2@infradead.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ #include <asm/byteorder.h> #define CFI_HOST_ENDIAN 1 #define CFI_LITTLE_ENDIAN 2 #define CFI_BIG_ENDIAN 3 #if !defined([31mCONFIG_MTD_CFI_ADV_OPTIONS[0m) || defined([31mCONFIG_MTD_CFI_NOSWAP[0m) #define CFI_DEFAULT_ENDIAN CFI_HOST_ENDIAN #elif defined([31mCONFIG_MTD_CFI_LE_BYTE_SWAP[0m) #define CFI_DEFAULT_ENDIAN CFI_LITTLE_ENDIAN #elif defined([31mCONFIG_MTD_CFI_BE_BYTE_SWAP[0m) #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)) |