diff options
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/nand.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index f9af7564118a..afd1cf9b5eaf 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -350,6 +350,9 @@ struct jedec_ecc_info { u8 reserved[2]; } __packed; +/* JEDEC features */ +#define JEDEC_FEATURE_16_BIT_BUS (1 << 0) + struct nand_jedec_params { /* rev info and features block */ /* 'J' 'E' 'S' 'D' */ @@ -925,4 +928,10 @@ static inline int nand_opcode_8bits(unsigned int command) return command == NAND_CMD_READID; } +/* return the supported JEDEC features. */ +static inline int jedec_feature(struct nand_chip *chip) +{ + return chip->jedec_version ? le16_to_cpu(chip->jedec_params.features) + : 0; +} #endif /* __LINUX_MTD_NAND_H */ |