Lines Matching full:nand
17 * @bits_per_cell: number of bits per NAND cell
24 * @ntargets: total number of targets exposed by the NAND device
62 * struct nand_pos - NAND position object
63 * @target: the NAND target/die
81 * struct nand_page_io_req - NAND I/O request object
91 * This object is used to pass per-page I/O requests to NAND sub-layers. This
93 * specific NAND layers can focus on translating these information into
114 * struct nand_ecc_req - NAND ECC requirements
147 * struct nand_ops - NAND operations
149 * erasing, this has been taken care of by the generic NAND layer
152 * NAND layer. This method should just write the BBM (Bad Block
160 * NAND layers (SPI NAND, raw NAND, ...).
163 int (*erase)(struct nand_device *nand, const struct nand_pos *pos);
164 int (*markbad)(struct nand_device *nand, const struct nand_pos *pos);
165 bool (*isbad)(struct nand_device *nand, const struct nand_pos *pos);
169 * struct nand_device - NAND device
170 * @mtd: MTD instance attached to the NAND device
175 * @ops: NAND operations attached to the NAND device
177 * Generic NAND object. Specialized NAND layers (raw NAND, SPI NAND, OneNAND)
178 * should declare their own NAND object embedding a nand_device struct (that's
181 * at device detection time to reflect the NAND device
183 * It will take care of converting NAND information into MTD ones, which means
184 * the specialized NAND layers should never manually tweak
197 * struct nand_io_iter - NAND I/O iterator
203 * Can be used by specialized NAND layers to iterate over all pages covered
205 * code needed to read/write data from/to a NAND device.
215 * mtd_to_nanddev() - Get the NAND device attached to the MTD instance
218 * Return: the NAND device embedding @mtd.
226 * nanddev_to_mtd() - Get the MTD device attached to a NAND device
227 * @nand: NAND device
229 * Return: the MTD device embedded in @nand.
231 static inline struct mtd_info *nanddev_to_mtd(struct nand_device *nand) in nanddev_to_mtd() argument
233 return nand->mtd; in nanddev_to_mtd()
238 * @nand: NAND device
242 static inline unsigned int nanddev_bits_per_cell(const struct nand_device *nand) in nanddev_bits_per_cell() argument
244 return nand->memorg.bits_per_cell; in nanddev_bits_per_cell()
248 * nanddev_page_size() - Get NAND page size
249 * @nand: NAND device
253 static inline size_t nanddev_page_size(const struct nand_device *nand) in nanddev_page_size() argument
255 return nand->memorg.pagesize; in nanddev_page_size()
259 * nanddev_per_page_oobsize() - Get NAND OOB size
260 * @nand: NAND device
265 nanddev_per_page_oobsize(const struct nand_device *nand) in nanddev_per_page_oobsize() argument
267 return nand->memorg.oobsize; in nanddev_per_page_oobsize()
272 * @nand: NAND device
277 nanddev_pages_per_eraseblock(const struct nand_device *nand) in nanddev_pages_per_eraseblock() argument
279 return nand->memorg.pages_per_eraseblock; in nanddev_pages_per_eraseblock()
283 * nanddev_per_page_oobsize() - Get NAND erase block size
284 * @nand: NAND device
288 static inline size_t nanddev_eraseblock_size(const struct nand_device *nand) in nanddev_eraseblock_size() argument
290 return nand->memorg.pagesize * nand->memorg.pages_per_eraseblock; in nanddev_eraseblock_size()
295 * @nand: NAND device
300 nanddev_eraseblocks_per_lun(const struct nand_device *nand) in nanddev_eraseblocks_per_lun() argument
302 return nand->memorg.eraseblocks_per_lun; in nanddev_eraseblocks_per_lun()
307 * @nand: NAND device
311 static inline u64 nanddev_target_size(const struct nand_device *nand) in nanddev_target_size() argument
313 return (u64)nand->memorg.luns_per_target * in nanddev_target_size()
314 nand->memorg.eraseblocks_per_lun * in nanddev_target_size()
315 nand->memorg.pages_per_eraseblock * in nanddev_target_size()
316 nand->memorg.pagesize; in nanddev_target_size()
321 * @nand: NAND device
323 * Return: the number of targets/dies exposed by @nand.
325 static inline unsigned int nanddev_ntargets(const struct nand_device *nand) in nanddev_ntargets() argument
327 return nand->memorg.ntargets; in nanddev_ntargets()
332 * @nand: NAND device
334 * Return: the total number of eraseblocks exposed by @nand.
336 static inline unsigned int nanddev_neraseblocks(const struct nand_device *nand) in nanddev_neraseblocks() argument
338 return nand->memorg.ntargets * nand->memorg.luns_per_target * in nanddev_neraseblocks()
339 nand->memorg.eraseblocks_per_lun; in nanddev_neraseblocks()
343 * nanddev_size() - Get NAND size
344 * @nand: NAND device
346 * Return: the total size (in bytes) exposed by @nand.
348 static inline u64 nanddev_size(const struct nand_device *nand) in nanddev_size() argument
350 return nanddev_target_size(nand) * nanddev_ntargets(nand); in nanddev_size()
354 * nanddev_get_memorg() - Extract memory organization info from a NAND device
355 * @nand: NAND device
360 * Return: the memorg object embedded in the NAND device.
363 nanddev_get_memorg(struct nand_device *nand) in nanddev_get_memorg() argument
365 return &nand->memorg; in nanddev_get_memorg()
368 int nanddev_init(struct nand_device *nand, const struct nand_ops *ops,
370 void nanddev_cleanup(struct nand_device *nand);
373 * nanddev_register() - Register a NAND device
374 * @nand: NAND device
376 * Register a NAND device.
378 * registering the MTD device embedded in @nand.
382 static inline int nanddev_register(struct nand_device *nand) in nanddev_register() argument
384 return mtd_device_register(nand->mtd, NULL, 0); in nanddev_register()
388 * nanddev_unregister() - Unregister a NAND device
389 * @nand: NAND device
391 * Unregister a NAND device.
393 * unregistering the MTD device embedded in @nand.
397 static inline int nanddev_unregister(struct nand_device *nand) in nanddev_unregister() argument
399 return mtd_device_unregister(nand->mtd); in nanddev_unregister()
403 * nanddev_set_of_node() - Attach a DT node to a NAND device
404 * @nand: NAND device
407 * Attach a DT node to a NAND device.
409 static inline void nanddev_set_of_node(struct nand_device *nand, in nanddev_set_of_node() argument
412 mtd_set_of_node(nand->mtd, np); in nanddev_set_of_node()
416 * nanddev_get_of_node() - Retrieve the DT node attached to a NAND device
417 * @nand: NAND device
419 * Return: the DT node attached to @nand.
421 static inline const struct device_node *nanddev_get_of_node(struct nand_device *nand) in nanddev_get_of_node() argument
423 return mtd_get_of_node(nand->mtd); in nanddev_get_of_node()
427 * nanddev_offs_to_pos() - Convert an absolute NAND offset into a NAND position
428 * @nand: NAND device
429 * @offs: absolute NAND offset (usually passed by the MTD layer)
430 * @pos: a NAND position object to fill in
434 * Return: the offset within the NAND page pointed by @pos.
436 static inline unsigned int nanddev_offs_to_pos(struct nand_device *nand, in nanddev_offs_to_pos() argument
443 pageoffs = do_div(tmp, nand->memorg.pagesize); in nanddev_offs_to_pos()
444 pos->page = do_div(tmp, nand->memorg.pages_per_eraseblock); in nanddev_offs_to_pos()
445 pos->eraseblock = do_div(tmp, nand->memorg.eraseblocks_per_lun); in nanddev_offs_to_pos()
446 pos->plane = pos->eraseblock % nand->memorg.planes_per_lun; in nanddev_offs_to_pos()
447 pos->lun = do_div(tmp, nand->memorg.luns_per_target); in nanddev_offs_to_pos()
454 * nanddev_pos_cmp() - Compare two NAND positions
455 * @a: First NAND position
456 * @b: Second NAND position
458 * Compares two NAND positions.
481 * nanddev_pos_to_offs() - Convert a NAND position into an absolute offset
482 * @nand: NAND device
483 * @pos: the NAND position to convert
485 * Converts @pos NAND position into an absolute offset.
491 static inline loff_t nanddev_pos_to_offs(struct nand_device *nand, in nanddev_pos_to_offs() argument
499 (pos->target * nand->memorg.luns_per_target)) * in nanddev_pos_to_offs()
500 nand->memorg.eraseblocks_per_lun) * in nanddev_pos_to_offs()
501 nand->memorg.pages_per_eraseblock); in nanddev_pos_to_offs()
503 return (loff_t)npages * nand->memorg.pagesize; in nanddev_pos_to_offs()
507 * nanddev_pos_to_row() - Extract a row address from a NAND position
508 * @nand: NAND device
511 * Converts a NAND position into a row address that can then be passed to the
516 static inline unsigned int nanddev_pos_to_row(struct nand_device *nand, in nanddev_pos_to_row() argument
519 return (pos->lun << nand->rowconv.lun_addr_shift) | in nanddev_pos_to_row()
520 (pos->eraseblock << nand->rowconv.eraseblock_addr_shift) | in nanddev_pos_to_row()
526 * @nand: NAND device
530 * want to iterate over all targets/dies of a NAND device.
532 static inline void nanddev_pos_next_target(struct nand_device *nand, in nanddev_pos_next_target() argument
544 * @nand: NAND device
548 * iterate over all LUNs of a NAND device.
550 static inline void nanddev_pos_next_lun(struct nand_device *nand, in nanddev_pos_next_lun() argument
553 if (pos->lun >= nand->memorg.luns_per_target - 1) in nanddev_pos_next_lun()
554 return nanddev_pos_next_target(nand, pos); in nanddev_pos_next_lun()
564 * @nand: NAND device
568 * want to iterate over all eraseblocks of a NAND device.
570 static inline void nanddev_pos_next_eraseblock(struct nand_device *nand, in nanddev_pos_next_eraseblock() argument
573 if (pos->eraseblock >= nand->memorg.eraseblocks_per_lun - 1) in nanddev_pos_next_eraseblock()
574 return nanddev_pos_next_lun(nand, pos); in nanddev_pos_next_eraseblock()
578 pos->plane = pos->eraseblock % nand->memorg.planes_per_lun; in nanddev_pos_next_eraseblock()
583 * @nand: NAND device
587 * iterate over all pages of a NAND device.
589 static inline void nanddev_pos_next_page(struct nand_device *nand, in nanddev_pos_next_page() argument
592 if (pos->page >= nand->memorg.pages_per_eraseblock - 1) in nanddev_pos_next_page()
593 return nanddev_pos_next_eraseblock(nand, pos); in nanddev_pos_next_page()
599 * nand_io_iter_init - Initialize a NAND I/O iterator
600 * @nand: NAND device
603 * @iter: NAND I/O iterator
605 * Initializes a NAND iterator based on the information passed by the MTD
608 static inline void nanddev_io_iter_init(struct nand_device *nand, in nanddev_io_iter_init() argument
612 struct mtd_info *mtd = nanddev_to_mtd(nand); in nanddev_io_iter_init()
615 iter->req.dataoffs = nanddev_offs_to_pos(nand, offs, &iter->req.pos); in nanddev_io_iter_init()
622 nand->memorg.pagesize - iter->req.dataoffs, in nanddev_io_iter_init()
632 * @nand: NAND device
633 * @iter: NAND I/O iterator
637 static inline void nanddev_io_iter_next_page(struct nand_device *nand, in nanddev_io_iter_next_page() argument
640 nanddev_pos_next_page(nand, &iter->req.pos); in nanddev_io_iter_next_page()
647 iter->req.datalen = min_t(unsigned int, nand->memorg.pagesize, in nanddev_io_iter_next_page()
655 * @nand: NAND device
656 * @iter: NAND I/O iterator
658 * Check whether @iter has reached the end of the NAND portion it was asked to
664 static inline bool nanddev_io_iter_end(struct nand_device *nand, in nanddev_io_iter_end() argument
674 * nand_io_for_each_page - Iterate over all NAND pages contained in an MTD I/O
676 * @nand: NAND device
679 * @iter: NAND I/O iterator
683 #define nanddev_io_for_each_page(nand, start, req, iter) \ argument
684 for (nanddev_io_iter_init(nand, start, req, iter); \
685 !nanddev_io_iter_end(nand, iter); \
686 nanddev_io_iter_next_page(nand, iter))
688 bool nanddev_isbad(struct nand_device *nand, const struct nand_pos *pos);
689 bool nanddev_isreserved(struct nand_device *nand, const struct nand_pos *pos);
690 int nanddev_erase(struct nand_device *nand, const struct nand_pos *pos);
691 int nanddev_markbad(struct nand_device *nand, const struct nand_pos *pos);
703 int nanddev_bbt_init(struct nand_device *nand);
704 void nanddev_bbt_cleanup(struct nand_device *nand);
705 int nanddev_bbt_update(struct nand_device *nand);
706 int nanddev_bbt_get_block_status(const struct nand_device *nand,
708 int nanddev_bbt_set_block_status(struct nand_device *nand, unsigned int entry,
710 int nanddev_bbt_markbad(struct nand_device *nand, unsigned int block);
713 * nanddev_bbt_pos_to_entry() - Convert a NAND position into a BBT entry
714 * @nand: NAND device
715 * @pos: the NAND position we want to get BBT entry for
722 static inline unsigned int nanddev_bbt_pos_to_entry(struct nand_device *nand, in nanddev_bbt_pos_to_entry() argument
726 ((pos->lun + (pos->target * nand->memorg.luns_per_target)) * in nanddev_bbt_pos_to_entry()
727 nand->memorg.eraseblocks_per_lun); in nanddev_bbt_pos_to_entry()
732 * @nand: NAND device
736 static inline bool nanddev_bbt_is_initialized(struct nand_device *nand) in nanddev_bbt_is_initialized() argument
738 return !!nand->bbt.cache; in nanddev_bbt_is_initialized()
741 /* MTD -> NAND helper functions. */