include/linux/mtd/cfi_endian.h

   1 #include <asm/byteorder.h>
   2
   3 #ifndef CONFIG_MTD_CFI_ADV_OPTIONS
   4
   5 #define CFI_HOST_ENDIAN
   6
   7 #else
   8
   9 #ifdef CONFIG_MTD_CFI_NOSWAP
  10 #define CFI_HOST_ENDIAN
  11 #endif
  12
  13 #ifdef CONFIG_MTD_CFI_LE_BYTE_SWAP
  14 #define CFI_LITTLE_ENDIAN
  15 #endif
  16
  17 #ifdef CONFIG_MTD_CFI_BE_BYTE_SWAP
  18 #define CFI_BIG_ENDIAN
  19 #endif
  20
  21 #endif
  22
  23 #if defined(CFI_LITTLE_ENDIAN)
  24 #define cpu_to_cfi8(x) (x)
  25 #define cfi8_to_cpu(x) (x)
  26 #define cpu_to_cfi16(x) cpu_to_le16(x)
  27 #define cpu_to_cfi32(x) cpu_to_le32(x)
  28 #define cpu_to_cfi64(x) cpu_to_le64(x)
  29 #define cfi16_to_cpu(x) le16_to_cpu(x)
  30 #define cfi32_to_cpu(x) le32_to_cpu(x)
  31 #define cfi64_to_cpu(x) le64_to_cpu(x)
  32 #elif defined (CFI_BIG_ENDIAN)
  33 #define cpu_to_cfi8(x) (x)
  34 #define cfi8_to_cpu(x) (x)
  35 #define cpu_to_cfi16(x) cpu_to_be16(x)
  36 #define cpu_to_cfi32(x) cpu_to_be32(x)
  37 #define cpu_to_cfi64(x) cpu_to_be64(x)
  38 #define cfi16_to_cpu(x) be16_to_cpu(x)
  39 #define cfi32_to_cpu(x) be32_to_cpu(x)
  40 #define cfi64_to_cpu(x) be64_to_cpu(x)
  41 #elif defined (CFI_HOST_ENDIAN)
  42 #define cpu_to_cfi8(x) (x)
  43 #define cfi8_to_cpu(x) (x)
  44 #define cpu_to_cfi16(x) (x)
  45 #define cpu_to_cfi32(x) (x)
  46 #define cpu_to_cfi64(x) (x)
  47 #define cfi16_to_cpu(x) (x)
  48 #define cfi32_to_cpu(x) (x)
  49 #define cfi64_to_cpu(x) (x)
  50 #else
  51 #error No CFI endianness defined
  52 #endif