diff options
Diffstat (limited to 'include/linux/mtd/cfi.h')
| -rw-r--r-- | include/linux/mtd/cfi.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index 3c9ea4b7adda..23a568910341 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -1,7 +1,7 @@ /* Common Flash Interface structures * See http://support.intel.com/design/flash/technote/index.htm - * $Id: cfi.h,v 1.56 2005/11/07 11:14:54 gleixner Exp $ + * $Id: cfi.h,v 1.57 2005/11/15 23:28:17 tpoynor Exp $ */ #ifndef __MTD_CFI_H__ @@ -426,6 +426,22 @@ static inline uint8_t cfi_read_query(struct map_info *map, uint32_t addr) } } +static inline uint16_t cfi_read_query16(struct map_info *map, uint32_t addr) +{ + map_word val = map_read(map, addr); + + if (map_bankwidth_is_1(map)) { + return val.x[0] & 0xff; + } else if (map_bankwidth_is_2(map)) { + return cfi16_to_cpu(val.x[0]); + } else { + /* No point in a 64-bit byteswap since that would just be + swapping the responses from different chips, and we are + only interested in one chip (a representative sample) */ + return cfi32_to_cpu(val.x[0]); + } +} + static inline void cfi_udelay(int us) { if (us >= 1000) { |