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-rw-r--r--include/linux/mtd/mtd.h16
-rw-r--r--include/linux/mtd/mtdram.h2
-rw-r--r--include/linux/mtd/nand.h176
-rw-r--r--include/linux/mtd/partitions.h8
4 files changed, 170 insertions, 32 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 8cc0e2fb6894..a1b0b4c8fd79 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -204,12 +204,12 @@ struct mtd_info {
struct mtd_oob_ops *ops);
int (*_write_oob) (struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops);
- int (*_get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf,
- size_t len);
+ int (*_get_fact_prot_info) (struct mtd_info *mtd, size_t len,
+ size_t *retlen, struct otp_info *buf);
int (*_read_fact_prot_reg) (struct mtd_info *mtd, loff_t from,
size_t len, size_t *retlen, u_char *buf);
- int (*_get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf,
- size_t len);
+ int (*_get_user_prot_info) (struct mtd_info *mtd, size_t len,
+ size_t *retlen, struct otp_info *buf);
int (*_read_user_prot_reg) (struct mtd_info *mtd, loff_t from,
size_t len, size_t *retlen, u_char *buf);
int (*_write_user_prot_reg) (struct mtd_info *mtd, loff_t to,
@@ -278,12 +278,12 @@ static inline int mtd_write_oob(struct mtd_info *mtd, loff_t to,
return mtd->_write_oob(mtd, to, ops);
}
-int mtd_get_fact_prot_info(struct mtd_info *mtd, struct otp_info *buf,
- size_t len);
+int mtd_get_fact_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
+ struct otp_info *buf);
int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf);
-int mtd_get_user_prot_info(struct mtd_info *mtd, struct otp_info *buf,
- size_t len);
+int mtd_get_user_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
+ struct otp_info *buf);
int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf);
int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len,
diff --git a/include/linux/mtd/mtdram.h b/include/linux/mtd/mtdram.h
index 68891313875d..628a6a21ddf0 100644
--- a/include/linux/mtd/mtdram.h
+++ b/include/linux/mtd/mtdram.h
@@ -3,6 +3,6 @@
#include <linux/mtd/mtd.h>
int mtdram_init_device(struct mtd_info *mtd, void *mapped_address,
- unsigned long size, char *name);
+ unsigned long size, const char *name);
#endif /* __MTD_MTDRAM_H__ */
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 9e6c8f9f306e..450d61ec7f06 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -52,14 +52,6 @@ extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
#define NAND_MAX_CHIPS 8
/*
- * This constant declares the max. oobsize / page, which
- * is supported now. If you add a chip with bigger oobsize/page
- * adjust this accordingly.
- */
-#define NAND_MAX_OOBSIZE 744
-#define NAND_MAX_PAGESIZE 8192
-
-/*
* Constants for hardware specific CLE/ALE/NCE function
*
* These are bits which can be or'ed to set/clear multiple
@@ -219,6 +211,9 @@ 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 +274,17 @@ 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 +322,104 @@ 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 jedec_ecc_info {
+ u8 ecc_bits;
+ u8 codeword_size;
+ __le16 bb_per_lun;
+ __le16 block_endurance;
+ 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' */
+ u8 sig[4];
+ __le16 revision;
+ __le16 features;
+ u8 opt_cmd[3];
+ __le16 sec_cmd;
+ u8 num_of_param_pages;
+ u8 reserved0[18];
+
+ /* manufacturer information block */
+ char manufacturer[12];
+ char model[20];
+ u8 jedec_id[6];
+ u8 reserved1[10];
+
+ /* memory organization block */
+ __le32 byte_per_page;
+ __le16 spare_bytes_per_page;
+ u8 reserved2[6];
+ __le32 pages_per_block;
+ __le32 blocks_per_lun;
+ u8 lun_count;
+ u8 addr_cycles;
+ u8 bits_per_cell;
+ u8 programs_per_page;
+ u8 multi_plane_addr;
+ u8 multi_plane_op_attr;
+ u8 reserved3[38];
+
+ /* electrical parameter block */
+ __le16 async_sdr_speed_grade;
+ __le16 toggle_ddr_speed_grade;
+ __le16 sync_ddr_speed_grade;
+ u8 async_sdr_features;
+ u8 toggle_ddr_features;
+ u8 sync_ddr_features;
+ __le16 t_prog;
+ __le16 t_bers;
+ __le16 t_r;
+ __le16 t_r_multi_plane;
+ __le16 t_ccs;
+ __le16 io_pin_capacitance_typ;
+ __le16 input_pin_capacitance_typ;
+ __le16 clk_pin_capacitance_typ;
+ u8 driver_strength_support;
+ __le16 t_ald;
+ u8 reserved4[36];
+
+ /* ECC and endurance block */
+ u8 guaranteed_good_blocks;
+ __le16 guaranteed_block_endurance;
+ struct jedec_ecc_info ecc_info[4];
+ u8 reserved5[29];
+
+ /* reserved */
+ u8 reserved6[148];
+
+ /* vendor */
+ __le16 vendor_rev_num;
+ u8 reserved7[88];
+
+ /* CRC for Parameter Page */
+ __le16 crc;
+} __packed;
+
/**
* struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices
* @lock: protection lock
@@ -394,7 +488,7 @@ struct nand_ecc_ctrl {
int (*read_page)(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page);
int (*read_subpage)(struct mtd_info *mtd, struct nand_chip *chip,
- uint32_t offs, uint32_t len, uint8_t *buf);
+ uint32_t offs, uint32_t len, uint8_t *buf, int page);
int (*write_subpage)(struct mtd_info *mtd, struct nand_chip *chip,
uint32_t offset, uint32_t data_len,
const uint8_t *data_buf, int oob_required);
@@ -411,17 +505,17 @@ struct nand_ecc_ctrl {
/**
* struct nand_buffers - buffer structure for read/write
- * @ecccalc: buffer for calculated ECC
- * @ecccode: buffer for ECC read from flash
- * @databuf: buffer for data - dynamically sized
+ * @ecccalc: buffer pointer for calculated ECC, size is oobsize.
+ * @ecccode: buffer pointer for ECC read from flash, size is oobsize.
+ * @databuf: buffer pointer for data, size is (page size + oobsize).
*
* Do not change the order of buffers. databuf and oobrbuf must be in
* consecutive order.
*/
struct nand_buffers {
- uint8_t ecccalc[NAND_MAX_OOBSIZE];
- uint8_t ecccode[NAND_MAX_OOBSIZE];
- uint8_t databuf[NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE];
+ uint8_t *ecccalc;
+ uint8_t *ecccode;
+ uint8_t *databuf;
};
/**
@@ -432,6 +526,8 @@ 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 +547,8 @@ 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
@@ -495,8 +593,13 @@ struct nand_buffers {
* @subpagesize: [INTERN] holds the subpagesize
* @onfi_version: [INTERN] holds the chip ONFI version (BCD encoded),
* non 0 if ONFI supported.
+ * @jedec_version: [INTERN] holds the chip JEDEC version (BCD encoded),
+ * non 0 if JEDEC supported.
* @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is
* supported, 0 otherwise.
+ * @jedec_params: [INTERN] holds the JEDEC parameter page when JEDEC 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 +624,7 @@ 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 +648,7 @@ 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;
@@ -566,7 +671,13 @@ struct nand_chip {
int badblockbits;
int onfi_version;
- struct nand_onfi_params onfi_params;
+ int jedec_version;
+ union {
+ struct nand_onfi_params onfi_params;
+ struct nand_jedec_params jedec_params;
+ };
+
+ int read_retries;
flstate_t state;
@@ -600,6 +711,8 @@ 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
@@ -805,4 +918,29 @@ static inline bool nand_is_slc(struct nand_chip *chip)
{
return chip->bits_per_cell == 1;
}
+
+/**
+ * Check if the opcode's address should be sent only on the lower 8 bits
+ * @command: opcode to check
+ */
+static inline int nand_opcode_8bits(unsigned int command)
+{
+ switch (command) {
+ case NAND_CMD_READID:
+ case NAND_CMD_PARAM:
+ case NAND_CMD_GET_FEATURES:
+ case NAND_CMD_SET_FEATURES:
+ return 1;
+ default:
+ break;
+ }
+ return 0;
+}
+
+/* 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 */
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index 1f8d24bdafda..6a35e6de5da1 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -37,7 +37,7 @@
*/
struct mtd_partition {
- char *name; /* identifier string */
+ const char *name; /* identifier string */
uint64_t size; /* partition size */
uint64_t offset; /* offset within the master MTD space */
uint32_t mask_flags; /* master MTD flags to mask out for this partition */
@@ -76,11 +76,11 @@ struct mtd_part_parser {
struct mtd_part_parser_data *);
};
-extern int register_mtd_parser(struct mtd_part_parser *parser);
-extern int deregister_mtd_parser(struct mtd_part_parser *parser);
+extern void register_mtd_parser(struct mtd_part_parser *parser);
+extern void deregister_mtd_parser(struct mtd_part_parser *parser);
int mtd_is_partition(const struct mtd_info *mtd);
-int mtd_add_partition(struct mtd_info *master, char *name,
+int mtd_add_partition(struct mtd_info *master, const char *name,
long long offset, long long length);
int mtd_del_partition(struct mtd_info *master, int partno);
uint64_t mtd_get_device_size(const struct mtd_info *mtd);
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-25 20:45:37 +0000