diff options
Diffstat (limited to 'include/linux/mtd/nand.h')
| -rw-r--r-- | include/linux/mtd/nand.h | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 9e6c8f9f306e..32f8612469d8 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -219,6 +219,9 @@ struct nand_chip; /* ONFI feature address */ #define ONFI_FEATURE_ADDR_TIMING_MODE 0x1 +/* Vendor-specific feature address (Micron) */ +#define ONFI_FEATURE_ADDR_READ_RETRY 0x89 + /* ONFI subfeature parameters length */ #define ONFI_SUBFEATURE_PARAM_LEN 4 @@ -279,16 +282,17 @@ struct nand_onfi_params { __le16 io_pin_capacitance_typ; __le16 input_pin_capacitance_typ; u8 input_pin_capacitance_max; - u8 driver_strenght_support; + u8 driver_strength_support; __le16 t_int_r; __le16 t_ald; u8 reserved4[7]; /* vendor */ - u8 reserved5[90]; + __le16 vendor_revision; + u8 vendor[88]; __le16 crc; -} __attribute__((packed)); +} __packed; #define ONFI_CRC_BASE 0x4F4E @@ -326,6 +330,26 @@ struct onfi_ext_param_page { */ } __packed; +struct nand_onfi_vendor_micron { + u8 two_plane_read; + u8 read_cache; + u8 read_unique_id; + u8 dq_imped; + u8 dq_imped_num_settings; + u8 dq_imped_feat_addr; + u8 rb_pulldown_strength; + u8 rb_pulldown_strength_feat_addr; + u8 rb_pulldown_strength_num_settings; + u8 otp_mode; + u8 otp_page_start; + u8 otp_data_prot_addr; + u8 otp_num_pages; + u8 otp_feat_addr; + u8 read_retry_options; + u8 reserved[72]; + u8 param_revision; +} __packed; + /** * struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices * @lock: protection lock @@ -432,6 +456,8 @@ struct nand_buffers { * flash device. * @read_byte: [REPLACEABLE] read one byte from the chip * @read_word: [REPLACEABLE] read one word from the chip + * @write_byte: [REPLACEABLE] write a single byte to the chip on the + * low 8 I/O lines * @write_buf: [REPLACEABLE] write data from the buffer to the chip * @read_buf: [REPLACEABLE] read data from the chip into the buffer * @select_chip: [REPLACEABLE] select chip nr @@ -451,6 +477,8 @@ struct nand_buffers { * commands to the chip. * @waitfunc: [REPLACEABLE] hardwarespecific function for wait on * ready. + * @setup_read_retry: [FLASHSPECIFIC] flash (vendor) specific function for + * setting the read-retry mode. Mostly needed for MLC NAND. * @ecc: [BOARDSPECIFIC] ECC control structure * @buffers: buffer structure for read/write * @hwcontrol: platform-specific hardware control structure @@ -497,6 +525,7 @@ struct nand_buffers { * non 0 if ONFI supported. * @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is * supported, 0 otherwise. + * @read_retries: [INTERN] the number of read retry modes supported * @onfi_set_features: [REPLACEABLE] set the features for ONFI nand * @onfi_get_features: [REPLACEABLE] get the features for ONFI nand * @bbt: [INTERN] bad block table pointer @@ -521,6 +550,7 @@ struct nand_chip { uint8_t (*read_byte)(struct mtd_info *mtd); u16 (*read_word)(struct mtd_info *mtd); + void (*write_byte)(struct mtd_info *mtd, uint8_t byte); void (*write_buf)(struct mtd_info *mtd, const uint8_t *buf, int len); void (*read_buf)(struct mtd_info *mtd, uint8_t *buf, int len); void (*select_chip)(struct mtd_info *mtd, int chip); @@ -544,6 +574,7 @@ struct nand_chip { int feature_addr, uint8_t *subfeature_para); int (*onfi_get_features)(struct mtd_info *mtd, struct nand_chip *chip, int feature_addr, uint8_t *subfeature_para); + int (*setup_read_retry)(struct mtd_info *mtd, int retry_mode); int chip_delay; unsigned int options; @@ -568,6 +599,8 @@ struct nand_chip { int onfi_version; struct nand_onfi_params onfi_params; + int read_retries; + flstate_t state; uint8_t *oob_poi; @@ -600,6 +633,8 @@ struct nand_chip { #define NAND_MFR_AMD 0x01 #define NAND_MFR_MACRONIX 0xc2 #define NAND_MFR_EON 0x92 +#define NAND_MFR_SANDISK 0x45 +#define NAND_MFR_INTEL 0x89 /* The maximum expected count of bytes in the NAND ID sequence */ #define NAND_MAX_ID_LEN 8 |