From ea7d1eec66898b233ac49f8a60391b96afa25477 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Mon, 30 May 2016 13:57:53 -0500 Subject: mtd: nand: Remove docg4 driver and palmtreo680 flashing tool Commit ad4f54ea86b ("arm: Remove palmtreo680 board") removed the only user of the docg4 driver and the palmtreo680 image flashing tool. This patch removes them. Signed-off-by: Scott Wood Cc: Mike Dunn Cc: Simon Glass --- include/linux/mtd/docg4.h | 132 ---------------------------------------------- 1 file changed, 132 deletions(-) delete mode 100644 include/linux/mtd/docg4.h (limited to 'include') diff --git a/include/linux/mtd/docg4.h b/include/linux/mtd/docg4.h deleted file mode 100644 index 741fc0db46..0000000000 --- a/include/linux/mtd/docg4.h +++ /dev/null @@ -1,132 +0,0 @@ -/* - * Copyright (C) 2013 Mike Dunn - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef __DOCG4_H__ -#define __DOCG4_H__ - -#include -#include - -extern int docg4_nand_init(struct mtd_info *mtd, - struct nand_chip *nand, int devnum); - -/* SPL-related definitions */ -#define DOCG4_IPL_LOAD_BLOCK_COUNT 2 /* number of blocks that IPL loads */ -#define DOCG4_BLOCK_CAPACITY_SPL 0x10000 /* reliable mode; redundant pages */ - -#define DOC_IOSPACE_DATA 0x0800 - -/* register offsets */ -#define DOC_CHIPID 0x1000 -#define DOC_DEVICESELECT 0x100a -#define DOC_ASICMODE 0x100c -#define DOC_DATAEND 0x101e -#define DOC_NOP 0x103e - -#define DOC_FLASHSEQUENCE 0x1032 -#define DOC_FLASHCOMMAND 0x1034 -#define DOC_FLASHADDRESS 0x1036 -#define DOC_FLASHCONTROL 0x1038 -#define DOC_ECCCONF0 0x1040 -#define DOC_ECCCONF1 0x1042 -#define DOC_HAMMINGPARITY 0x1046 -#define DOC_BCH_SYNDROM(idx) (0x1048 + idx) - -#define DOC_ASICMODECONFIRM 0x1072 -#define DOC_CHIPID_INV 0x1074 -#define DOC_POWERMODE 0x107c - -#define DOCG4_MYSTERY_REG 0x1050 - -/* apparently used only to write oob bytes 6 and 7 */ -#define DOCG4_OOB_6_7 0x1052 - -/* DOC_FLASHSEQUENCE register commands */ -#define DOC_SEQ_RESET 0x00 -#define DOCG4_SEQ_PAGE_READ 0x03 -#define DOCG4_SEQ_FLUSH 0x29 -#define DOCG4_SEQ_PAGEWRITE 0x16 -#define DOCG4_SEQ_PAGEPROG 0x1e -#define DOCG4_SEQ_BLOCKERASE 0x24 - -/* DOC_FLASHCOMMAND register commands */ -#define DOCG4_CMD_PAGE_READ 0x00 -#define DOC_CMD_ERASECYCLE2 0xd0 -#define DOCG4_CMD_FLUSH 0x70 -#define DOCG4_CMD_READ2 0x30 -#define DOC_CMD_PROG_BLOCK_ADDR 0x60 -#define DOCG4_CMD_PAGEWRITE 0x80 -#define DOC_CMD_PROG_CYCLE2 0x10 -#define DOC_CMD_RESET 0xff - -/* DOC_POWERMODE register bits */ -#define DOC_POWERDOWN_READY 0x80 - -/* DOC_FLASHCONTROL register bits */ -#define DOC_CTRL_CE 0x10 -#define DOC_CTRL_UNKNOWN 0x40 -#define DOC_CTRL_FLASHREADY 0x01 - -/* DOC_ECCCONF0 register bits */ -#define DOC_ECCCONF0_READ_MODE 0x8000 -#define DOC_ECCCONF0_UNKNOWN 0x2000 -#define DOC_ECCCONF0_ECC_ENABLE 0x1000 -#define DOC_ECCCONF0_DATA_BYTES_MASK 0x07ff - -/* DOC_ECCCONF1 register bits */ -#define DOC_ECCCONF1_BCH_SYNDROM_ERR 0x80 -#define DOC_ECCCONF1_ECC_ENABLE 0x07 -#define DOC_ECCCONF1_PAGE_IS_WRITTEN 0x20 - -/* DOC_ASICMODE register bits */ -#define DOC_ASICMODE_RESET 0x00 -#define DOC_ASICMODE_NORMAL 0x01 -#define DOC_ASICMODE_POWERDOWN 0x02 -#define DOC_ASICMODE_MDWREN 0x04 -#define DOC_ASICMODE_BDETCT_RESET 0x08 -#define DOC_ASICMODE_RSTIN_RESET 0x10 -#define DOC_ASICMODE_RAM_WE 0x20 - -/* good status values read after read/write/erase operations */ -#define DOCG4_PROGSTATUS_GOOD 0x51 -#define DOCG4_PROGSTATUS_GOOD_2 0xe0 - -/* - * On read operations (page and oob-only), the first byte read from I/O reg is a - * status. On error, it reads 0x73; otherwise, it reads either 0x71 (first read - * after reset only) or 0x51, so bit 1 is presumed to be an error indicator. - */ -#define DOCG4_READ_ERROR 0x02 /* bit 1 indicates read error */ - -/* anatomy of the device */ -#define DOCG4_CHIP_SIZE 0x8000000 -#define DOCG4_PAGE_SIZE 0x200 -#define DOCG4_PAGES_PER_BLOCK 0x200 -#define DOCG4_BLOCK_SIZE (DOCG4_PAGES_PER_BLOCK * DOCG4_PAGE_SIZE) -#define DOCG4_NUMBLOCKS (DOCG4_CHIP_SIZE / DOCG4_BLOCK_SIZE) -#define DOCG4_OOB_SIZE 0x10 -#define DOCG4_CHIP_SHIFT 27 /* log_2(DOCG4_CHIP_SIZE) */ -#define DOCG4_PAGE_SHIFT 9 /* log_2(DOCG4_PAGE_SIZE) */ -#define DOCG4_ERASE_SHIFT 18 /* log_2(DOCG4_BLOCK_SIZE) */ - -/* all but the last byte is included in ecc calculation */ -#define DOCG4_BCH_SIZE (DOCG4_PAGE_SIZE + DOCG4_OOB_SIZE - 1) - -#define DOCG4_USERDATA_LEN 520 /* 512 byte page plus 8 oob avail to user */ - -/* expected values from the ID registers */ -#define DOCG4_IDREG1_VALUE 0x0400 -#define DOCG4_IDREG2_VALUE 0xfbff - -/* primitive polynomial used to build the Galois field used by hw ecc gen */ -#define DOCG4_PRIMITIVE_POLY 0x4443 - -#define DOCG4_M 14 /* Galois field is of order 2^14 */ -#define DOCG4_T 4 /* BCH alg corrects up to 4 bit errors */ - -#define DOCG4_FACTORY_BBT_PAGE 16 /* page where read-only factory bbt lives */ - -#endif /* __DOCG4_H__ */ -- cgit v1.2.1 From 151c06ec61d74b77cf27d6d622bab6370c949c66 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Mon, 30 May 2016 13:57:54 -0500 Subject: mtd: nand: Remove nand_info_t typedef This typedef serves no purpose other than causing confusion with struct nand_chip. Signed-off-by: Scott Wood --- include/nand.h | 39 ++++++++++++++++++++------------------- 1 file changed, 20 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/include/nand.h b/include/nand.h index 7cbbbd327a..eb2d76dbc6 100644 --- a/include/nand.h +++ b/include/nand.h @@ -40,27 +40,27 @@ int nand_register(int devnum); extern int board_nand_init(struct nand_chip *nand); #endif -typedef struct mtd_info nand_info_t; - extern int nand_curr_device; -extern nand_info_t nand_info[]; +extern struct mtd_info nand_info[]; -static inline int nand_read(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf) +static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len, + u_char *buf) { return mtd_read(info, ofs, *len, (size_t *)len, buf); } -static inline int nand_write(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf) +static inline int nand_write(struct mtd_info *info, loff_t ofs, size_t *len, + u_char *buf) { return mtd_write(info, ofs, *len, (size_t *)len, buf); } -static inline int nand_block_isbad(nand_info_t *info, loff_t ofs) +static inline int nand_block_isbad(struct mtd_info *info, loff_t ofs) { return mtd_block_isbad(info, ofs); } -static inline int nand_erase(nand_info_t *info, loff_t off, size_t size) +static inline int nand_erase(struct mtd_info *info, loff_t off, size_t size) { struct erase_info instr; @@ -96,27 +96,28 @@ struct nand_erase_options { typedef struct nand_erase_options nand_erase_options_t; -int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, +int nand_read_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length, size_t *actual, loff_t lim, u_char *buffer); #define WITH_DROP_FFS (1 << 0) /* drop trailing all-0xff pages */ #define WITH_WR_VERIFY (1 << 1) /* verify data was written correctly */ -int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, +int nand_write_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length, size_t *actual, loff_t lim, u_char *buffer, int flags); -int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts); -int nand_torture(nand_info_t *nand, loff_t offset); -int nand_verify_page_oob(nand_info_t *nand, struct mtd_oob_ops *ops, - loff_t ofs); -int nand_verify(nand_info_t *nand, loff_t ofs, size_t len, u_char *buf); +int nand_erase_opts(struct mtd_info *mtd, + const nand_erase_options_t *opts); +int nand_torture(struct mtd_info *mtd, loff_t offset); +int nand_verify_page_oob(struct mtd_info *mtd, struct mtd_oob_ops *ops, + loff_t ofs); +int nand_verify(struct mtd_info *mtd, loff_t ofs, size_t len, u_char *buf); #define NAND_LOCK_STATUS_TIGHT 0x01 #define NAND_LOCK_STATUS_UNLOCK 0x04 -int nand_lock(nand_info_t *meminfo, int tight); -int nand_unlock(nand_info_t *meminfo, loff_t start, size_t length, - int allexcept); -int nand_get_lock_status(nand_info_t *meminfo, loff_t offset); +int nand_lock(struct mtd_info *mtd, int tight); +int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length, + int allexcept); +int nand_get_lock_status(struct mtd_info *mtd, loff_t offset); int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst); void nand_deselect(void); @@ -135,6 +136,6 @@ __attribute__((noreturn)) void nand_boot(void); #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is stored as byte number */ #define ENV_OFFSET_SIZE 8 -int get_nand_env_oob(nand_info_t *nand, unsigned long *result); +int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result); #endif int spl_nand_erase_one(int block, int page); -- cgit v1.2.1 From b616d9b0a708eb90eb474e1b6ec6dfe4c48a1678 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Mon, 30 May 2016 13:57:55 -0500 Subject: nand: Embed mtd_info in struct nand_chip nand_info[] is now an array of pointers, with the actual mtd_info instance embedded in struct nand_chip. This is in preparation for syncing the NAND code with Linux 4.6, which makes the same change to struct nand_chip. It's in a separate commit due to the large amount of changes required to accommodate the change to nand_info[]. Signed-off-by: Scott Wood --- include/linux/mtd/nand.h | 1 + include/nand.h | 6 ++++-- 2 files changed, 5 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 23072fdfc3..fe8ac9da29 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -659,6 +659,7 @@ struct nand_buffers { */ struct nand_chip { + struct mtd_info mtd; void __iomem *IO_ADDR_R; void __iomem *IO_ADDR_W; diff --git a/include/nand.h b/include/nand.h index eb2d76dbc6..a4f0f9253d 100644 --- a/include/nand.h +++ b/include/nand.h @@ -33,15 +33,17 @@ extern void nand_init(void); #include #include +int nand_mtd_to_devnum(struct mtd_info *mtd); + #ifdef CONFIG_SYS_NAND_SELF_INIT void board_nand_init(void); -int nand_register(int devnum); +int nand_register(int devnum, struct mtd_info *mtd); #else extern int board_nand_init(struct nand_chip *nand); #endif extern int nand_curr_device; -extern struct mtd_info nand_info[]; +extern struct mtd_info *nand_info[]; static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len, u_char *buf) -- cgit v1.2.1 From 17cb4b8f327eb983cef7c510fcf77f1635a00e48 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Mon, 30 May 2016 13:57:56 -0500 Subject: mtd: nand: Add+use mtd_to/from_nand and nand_get/set_controller_data These functions are part of the Linux 4.6 sync. They are being added before the main sync patch in order to make it easier to address the issue across all NAND drivers (many/most of which do not closely track their Linux counterparts) separately from other merge issues. Signed-off-by: Scott Wood --- include/linux/mtd/nand.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index fe8ac9da29..e1df66b625 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -740,6 +740,26 @@ struct nand_chip { void *priv; }; +static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd) +{ + return container_of(mtd, struct nand_chip, mtd); +} + +static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip) +{ + return &chip->mtd; +} + +static inline void *nand_get_controller_data(struct nand_chip *chip) +{ + return chip->priv; +} + +static inline void nand_set_controller_data(struct nand_chip *chip, void *priv) +{ + chip->priv = priv; +} + /* * NAND Flash Manufacturer ID Codes */ -- cgit v1.2.1 From 81c772521ff26054a3fe75efa87d8daeae83e9b4 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Mon, 30 May 2016 13:57:57 -0500 Subject: mtd: nand: Add page argument to write_page() etc. This change is part of the Linux 4.6 sync. It is being done before the main sync patch in order to make it easier to address the issue across all NAND drivers (many/most of which do not closely track their Linux counterparts) separately from other merge issues. Signed-off-by: Scott Wood --- include/linux/mtd/nand.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index e1df66b625..34945fda70 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -519,16 +519,16 @@ struct nand_ecc_ctrl { int (*read_page_raw)(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page); int (*write_page_raw)(struct mtd_info *mtd, struct nand_chip *chip, - const uint8_t *buf, int oob_required); + const uint8_t *buf, int oob_required, int page); 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, 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); + const uint8_t *data_buf, int oob_required, int page); int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip, - const uint8_t *buf, int oob_required); + const uint8_t *buf, int oob_required, int page); int (*write_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip, int page); int (*read_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip, -- cgit v1.2.1 From ceee07b65875bb01bef55cba06940ef7afc1afba Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Mon, 30 May 2016 13:57:58 -0500 Subject: mtd: nand: Sync with Linux v4.6 Updates the NAND code to match Linux v4.6. The previous sync was from Linux v4.1 in commit d3963721d93fafa. Note that none of the individual NAND drivers tracked Linux closely enough to be synced themselves, other than manually applying a few cross-tree changes. Signed-off-by: Scott Wood Tested-by: Heiko Schocher --- include/linux/mtd/mtd.h | 5 ++++ include/linux/mtd/nand.h | 65 ++++++++++++++++++++++++++++---------------- include/linux/mtd/nand_bch.h | 10 ++----- 3 files changed, 49 insertions(+), 31 deletions(-) (limited to 'include') diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 9da77ec144..cf20674549 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -278,6 +278,11 @@ struct mtd_info { int usecount; }; +static inline int mtd_oobavail(struct mtd_info *mtd, struct mtd_oob_ops *ops) +{ + return ops->mode == MTD_OPS_AUTO_OOB ? mtd->oobavail : mtd->oobsize; +} + int mtd_erase(struct mtd_info *mtd, struct erase_info *instr); #ifndef __UBOOT__ int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 34945fda70..b5a02c3382 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -25,6 +25,8 @@ struct mtd_info; struct nand_flash_dev; +struct device_node; + /* Scan and identify a NAND device */ extern int nand_scan(struct mtd_info *mtd, int max_chips); /* @@ -144,6 +146,14 @@ typedef enum { /* Enable Hardware ECC before syndrome is read back from flash */ #define NAND_ECC_READSYN 2 +/* + * Enable generic NAND 'page erased' check. This check is only done when + * ecc.correct() returns -EBADMSG. + * Set this flag if your implementation does not fix bitflips in erased + * pages and you want to rely on the default implementation. + */ +#define NAND_ECC_GENERIC_ERASED_CHECK BIT(0) + /* Bit mask for flags passed to do_nand_read_ecc */ #define NAND_GET_DEVICE 0x80 @@ -179,6 +189,12 @@ typedef enum { /* Device supports subpage reads */ #define NAND_SUBPAGE_READ 0x00001000 +/* + * Some MLC NANDs need data scrambling to limit bitflips caused by repeated + * patterns. + */ +#define NAND_NEED_SCRAMBLING 0x00002000 + /* Options valid for Samsung large page devices */ #define NAND_SAMSUNG_LP_OPTIONS NAND_CACHEPRG @@ -203,6 +219,11 @@ typedef enum { * before calling nand_scan_tail. */ #define NAND_BUSWIDTH_AUTO 0x00080000 +/* + * This option could be defined by controller drivers to protect against + * kmap'ed, vmalloc'ed highmem buffers being passed from upper layers + */ +#define NAND_USE_BOUNCE_BUFFER 0x00100000 /* Options set by nand scan */ /* bbt has already been read */ @@ -292,15 +313,15 @@ struct nand_onfi_params { __le16 t_r; __le16 t_ccs; __le16 src_sync_timing_mode; - __le16 src_ssync_features; + u8 src_ssync_features; __le16 clk_pin_capacitance_typ; __le16 io_pin_capacitance_typ; __le16 input_pin_capacitance_typ; u8 input_pin_capacitance_max; u8 driver_strength_support; __le16 t_int_r; - __le16 t_ald; - u8 reserved4[7]; + __le16 t_adl; + u8 reserved4[8]; /* vendor */ __le16 vendor_revision; @@ -423,7 +444,7 @@ struct nand_jedec_params { __le16 input_pin_capacitance_typ; __le16 clk_pin_capacitance_typ; u8 driver_strength_support; - __le16 t_ald; + __le16 t_adl; u8 reserved4[36]; /* ECC and endurance block */ @@ -466,12 +487,19 @@ struct nand_hw_control { * @total: total number of ECC bytes per page * @prepad: padding information for syndrome based ECC generators * @postpad: padding information for syndrome based ECC generators + * @options: ECC specific options (see NAND_ECC_XXX flags defined above) * @layout: ECC layout control struct pointer * @priv: pointer to private ECC control data * @hwctl: function to control hardware ECC generator. Must only * be provided if an hardware ECC is available * @calculate: function for ECC calculation or readback from ECC hardware - * @correct: function for ECC correction, matching to ECC generator (sw/hw) + * @correct: function for ECC correction, matching to ECC generator (sw/hw). + * Should return a positive number representing the number of + * corrected bitflips, -EBADMSG if the number of bitflips exceed + * ECC strength, or any other error code if the error is not + * directly related to correction. + * If -EBADMSG is returned the input buffers should be left + * untouched. * @read_page_raw: function to read a raw page without ECC. This function * should hide the specific layout used by the ECC * controller and always return contiguous in-band and @@ -509,6 +537,7 @@ struct nand_ecc_ctrl { int strength; int prepad; int postpad; + unsigned int options; struct nand_ecclayout *layout; void *priv; void (*hwctl)(struct mtd_info *mtd, int mode); @@ -556,6 +585,7 @@ struct nand_buffers { /** * struct nand_chip - NAND Private Flash Chip Data + * @mtd: MTD device registered to the MTD framework * @IO_ADDR_R: [BOARDSPECIFIC] address to read the 8 I/O lines of the * flash device * @IO_ADDR_W: [BOARDSPECIFIC] address to write the 8 I/O lines of the @@ -571,10 +601,6 @@ struct nand_buffers { * @block_markbad: [REPLACEABLE] mark a block bad * @cmd_ctrl: [BOARDSPECIFIC] hardwarespecific function for controlling * ALE/CLE/nCE. Also used to write command and address - * @init_size: [BOARDSPECIFIC] hardwarespecific function for setting - * mtd->oobsize, mtd->writesize and so on. - * @id_data contains the 8 bytes values of NAND_CMD_READID. - * Return with the bus width. * @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accessing * device ready/busy line. If set to NULL no access to * ready/busy is available and the ready/busy information @@ -669,11 +695,9 @@ struct nand_chip { 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); - int (*block_bad)(struct mtd_info *mtd, loff_t ofs, int getchip); + int (*block_bad)(struct mtd_info *mtd, loff_t ofs); int (*block_markbad)(struct mtd_info *mtd, loff_t ofs); void (*cmd_ctrl)(struct mtd_info *mtd, int dat, unsigned int ctrl); - int (*init_size)(struct mtd_info *mtd, struct nand_chip *this, - u8 *id_data); int (*dev_ready)(struct mtd_info *mtd); void (*cmdfunc)(struct mtd_info *mtd, unsigned command, int column, int page_addr); @@ -873,7 +897,6 @@ struct nand_manufacturers { extern struct nand_flash_dev nand_flash_ids[]; extern struct nand_manufacturers nand_manuf_ids[]; -extern int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd); extern int nand_default_bbt(struct mtd_info *mtd); extern int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs); extern int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs); @@ -898,7 +921,6 @@ extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len, * @chip_delay: R/B delay value in us * @options: Option flags, e.g. 16bit buswidth * @bbt_options: BBT option flags, e.g. NAND_BBT_USE_FLASH - * @ecclayout: ECC layout info structure * @part_probe_types: NULL-terminated array of probe types */ struct platform_nand_chip { @@ -906,7 +928,6 @@ struct platform_nand_chip { int chip_offset; int nr_partitions; struct mtd_partition *partitions; - struct nand_ecclayout *ecclayout; int chip_delay; unsigned int options; unsigned int bbt_options; @@ -955,15 +976,6 @@ struct platform_nand_data { struct platform_nand_ctrl ctrl; }; -/* Some helpers to access the data structures */ -static inline -struct platform_nand_chip *get_platform_nandchip(struct mtd_info *mtd) -{ - struct nand_chip *chip = mtd->priv; - - return chip->priv; -} - #ifdef CONFIG_SYS_NAND_ONFI_DETECTION /* return the supported features. */ static inline int onfi_feature(struct nand_chip *chip) @@ -1081,4 +1093,9 @@ struct nand_sdr_timings { /* get timing characteristics from ONFI timing mode. */ const struct nand_sdr_timings *onfi_async_timing_mode_to_sdr_timings(int mode); + +int nand_check_erased_ecc_chunk(void *data, int datalen, + void *ecc, int ecclen, + void *extraoob, int extraooblen, + int threshold); #endif /* __LINUX_MTD_NAND_H */ diff --git a/include/linux/mtd/nand_bch.h b/include/linux/mtd/nand_bch.h index d8754dd8c8..8ea6b04cc3 100644 --- a/include/linux/mtd/nand_bch.h +++ b/include/linux/mtd/nand_bch.h @@ -32,9 +32,7 @@ int nand_bch_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, /* * Initialize BCH encoder/decoder */ -struct nand_bch_control * -nand_bch_init(struct mtd_info *mtd, unsigned int eccsize, - unsigned int eccbytes, struct nand_ecclayout **ecclayout); +struct nand_bch_control *nand_bch_init(struct mtd_info *mtd); /* * Release BCH encoder/decoder resources */ @@ -55,12 +53,10 @@ static inline int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf, unsigned char *read_ecc, unsigned char *calc_ecc) { - return -1; + return -ENOTSUPP; } -static inline struct nand_bch_control * -nand_bch_init(struct mtd_info *mtd, unsigned int eccsize, - unsigned int eccbytes, struct nand_ecclayout **ecclayout) +static inline struct nand_bch_control *nand_bch_init(struct mtd_info *mtd) { return NULL; } -- cgit v1.2.1