diff options
Diffstat (limited to 'include/linux/mtd/nand.h')
-rw-r--r-- | include/linux/mtd/nand.h | 426 |
1 files changed, 266 insertions, 160 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 102e12c58cb3..63e17d01fde9 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h | |||
@@ -27,15 +27,17 @@ | |||
27 | struct mtd_info; | 27 | struct mtd_info; |
28 | struct nand_flash_dev; | 28 | struct nand_flash_dev; |
29 | /* Scan and identify a NAND device */ | 29 | /* Scan and identify a NAND device */ |
30 | extern int nand_scan (struct mtd_info *mtd, int max_chips); | 30 | extern int nand_scan(struct mtd_info *mtd, int max_chips); |
31 | /* Separate phases of nand_scan(), allowing board driver to intervene | 31 | /* |
32 | * and override command or ECC setup according to flash type */ | 32 | * Separate phases of nand_scan(), allowing board driver to intervene |
33 | * and override command or ECC setup according to flash type. | ||
34 | */ | ||
33 | extern int nand_scan_ident(struct mtd_info *mtd, int max_chips, | 35 | extern int nand_scan_ident(struct mtd_info *mtd, int max_chips, |
34 | struct nand_flash_dev *table); | 36 | struct nand_flash_dev *table); |
35 | extern int nand_scan_tail(struct mtd_info *mtd); | 37 | extern int nand_scan_tail(struct mtd_info *mtd); |
36 | 38 | ||
37 | /* Free resources held by the NAND device */ | 39 | /* Free resources held by the NAND device */ |
38 | extern void nand_release (struct mtd_info *mtd); | 40 | extern void nand_release(struct mtd_info *mtd); |
39 | 41 | ||
40 | /* Internal helper for board drivers which need to override command function */ | 42 | /* Internal helper for board drivers which need to override command function */ |
41 | extern void nand_wait_ready(struct mtd_info *mtd); | 43 | extern void nand_wait_ready(struct mtd_info *mtd); |
@@ -49,12 +51,13 @@ extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len); | |||
49 | /* The maximum number of NAND chips in an array */ | 51 | /* The maximum number of NAND chips in an array */ |
50 | #define NAND_MAX_CHIPS 8 | 52 | #define NAND_MAX_CHIPS 8 |
51 | 53 | ||
52 | /* This constant declares the max. oobsize / page, which | 54 | /* |
55 | * This constant declares the max. oobsize / page, which | ||
53 | * is supported now. If you add a chip with bigger oobsize/page | 56 | * is supported now. If you add a chip with bigger oobsize/page |
54 | * adjust this accordingly. | 57 | * adjust this accordingly. |
55 | */ | 58 | */ |
56 | #define NAND_MAX_OOBSIZE 256 | 59 | #define NAND_MAX_OOBSIZE 576 |
57 | #define NAND_MAX_PAGESIZE 4096 | 60 | #define NAND_MAX_PAGESIZE 8192 |
58 | 61 | ||
59 | /* | 62 | /* |
60 | * Constants for hardware specific CLE/ALE/NCE function | 63 | * Constants for hardware specific CLE/ALE/NCE function |
@@ -88,6 +91,7 @@ extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len); | |||
88 | #define NAND_CMD_RNDIN 0x85 | 91 | #define NAND_CMD_RNDIN 0x85 |
89 | #define NAND_CMD_READID 0x90 | 92 | #define NAND_CMD_READID 0x90 |
90 | #define NAND_CMD_ERASE2 0xd0 | 93 | #define NAND_CMD_ERASE2 0xd0 |
94 | #define NAND_CMD_PARAM 0xec | ||
91 | #define NAND_CMD_RESET 0xff | 95 | #define NAND_CMD_RESET 0xff |
92 | 96 | ||
93 | #define NAND_CMD_LOCK 0x2a | 97 | #define NAND_CMD_LOCK 0x2a |
@@ -152,9 +156,10 @@ typedef enum { | |||
152 | #define NAND_GET_DEVICE 0x80 | 156 | #define NAND_GET_DEVICE 0x80 |
153 | 157 | ||
154 | 158 | ||
155 | /* Option constants for bizarre disfunctionality and real | 159 | /* |
156 | * features | 160 | * Option constants for bizarre disfunctionality and real |
157 | */ | 161 | * features. |
162 | */ | ||
158 | /* Chip can not auto increment pages */ | 163 | /* Chip can not auto increment pages */ |
159 | #define NAND_NO_AUTOINCR 0x00000001 | 164 | #define NAND_NO_AUTOINCR 0x00000001 |
160 | /* Buswitdh is 16 bit */ | 165 | /* Buswitdh is 16 bit */ |
@@ -165,19 +170,27 @@ typedef enum { | |||
165 | #define NAND_CACHEPRG 0x00000008 | 170 | #define NAND_CACHEPRG 0x00000008 |
166 | /* Chip has copy back function */ | 171 | /* Chip has copy back function */ |
167 | #define NAND_COPYBACK 0x00000010 | 172 | #define NAND_COPYBACK 0x00000010 |
168 | /* AND Chip which has 4 banks and a confusing page / block | 173 | /* |
169 | * assignment. See Renesas datasheet for further information */ | 174 | * AND Chip which has 4 banks and a confusing page / block |
175 | * assignment. See Renesas datasheet for further information. | ||
176 | */ | ||
170 | #define NAND_IS_AND 0x00000020 | 177 | #define NAND_IS_AND 0x00000020 |
171 | /* Chip has a array of 4 pages which can be read without | 178 | /* |
172 | * additional ready /busy waits */ | 179 | * Chip has a array of 4 pages which can be read without |
180 | * additional ready /busy waits. | ||
181 | */ | ||
173 | #define NAND_4PAGE_ARRAY 0x00000040 | 182 | #define NAND_4PAGE_ARRAY 0x00000040 |
174 | /* Chip requires that BBT is periodically rewritten to prevent | 183 | /* |
184 | * Chip requires that BBT is periodically rewritten to prevent | ||
175 | * bits from adjacent blocks from 'leaking' in altering data. | 185 | * bits from adjacent blocks from 'leaking' in altering data. |
176 | * This happens with the Renesas AG-AND chips, possibly others. */ | 186 | * This happens with the Renesas AG-AND chips, possibly others. |
187 | */ | ||
177 | #define BBT_AUTO_REFRESH 0x00000080 | 188 | #define BBT_AUTO_REFRESH 0x00000080 |
178 | /* Chip does not require ready check on read. True | 189 | /* |
190 | * Chip does not require ready check on read. True | ||
179 | * for all large page devices, as they do not support | 191 | * for all large page devices, as they do not support |
180 | * autoincrement.*/ | 192 | * autoincrement. |
193 | */ | ||
181 | #define NAND_NO_READRDY 0x00000100 | 194 | #define NAND_NO_READRDY 0x00000100 |
182 | /* Chip does not allow subpage writes */ | 195 | /* Chip does not allow subpage writes */ |
183 | #define NAND_NO_SUBPAGE_WRITE 0x00000200 | 196 | #define NAND_NO_SUBPAGE_WRITE 0x00000200 |
@@ -205,16 +218,27 @@ typedef enum { | |||
205 | #define NAND_CHIPOPTIONS_MSK (0x0000ffff & ~NAND_NO_AUTOINCR) | 218 | #define NAND_CHIPOPTIONS_MSK (0x0000ffff & ~NAND_NO_AUTOINCR) |
206 | 219 | ||
207 | /* Non chip related options */ | 220 | /* Non chip related options */ |
208 | /* Use a flash based bad block table. This option is passed to the | 221 | /* |
209 | * default bad block table function. */ | 222 | * Use a flash based bad block table. OOB identifier is saved in OOB area. |
223 | * This option is passed to the default bad block table function. | ||
224 | */ | ||
210 | #define NAND_USE_FLASH_BBT 0x00010000 | 225 | #define NAND_USE_FLASH_BBT 0x00010000 |
211 | /* This option skips the bbt scan during initialization. */ | 226 | /* This option skips the bbt scan during initialization. */ |
212 | #define NAND_SKIP_BBTSCAN 0x00020000 | 227 | #define NAND_SKIP_BBTSCAN 0x00020000 |
213 | /* This option is defined if the board driver allocates its own buffers | 228 | /* |
214 | (e.g. because it needs them DMA-coherent */ | 229 | * This option is defined if the board driver allocates its own buffers |
230 | * (e.g. because it needs them DMA-coherent). | ||
231 | */ | ||
215 | #define NAND_OWN_BUFFERS 0x00040000 | 232 | #define NAND_OWN_BUFFERS 0x00040000 |
216 | /* Chip may not exist, so silence any errors in scan */ | 233 | /* Chip may not exist, so silence any errors in scan */ |
217 | #define NAND_SCAN_SILENT_NODEV 0x00080000 | 234 | #define NAND_SCAN_SILENT_NODEV 0x00080000 |
235 | /* | ||
236 | * If passed additionally to NAND_USE_FLASH_BBT then BBT code will not touch | ||
237 | * the OOB area. | ||
238 | */ | ||
239 | #define NAND_USE_FLASH_BBT_NO_OOB 0x00100000 | ||
240 | /* Create an empty BBT with no vendor information if the BBT is available */ | ||
241 | #define NAND_CREATE_EMPTY_BBT 0x00200000 | ||
218 | 242 | ||
219 | /* Options set by nand scan */ | 243 | /* Options set by nand scan */ |
220 | /* Nand scan has allocated controller struct */ | 244 | /* Nand scan has allocated controller struct */ |
@@ -227,15 +251,80 @@ typedef enum { | |||
227 | /* Keep gcc happy */ | 251 | /* Keep gcc happy */ |
228 | struct nand_chip; | 252 | struct nand_chip; |
229 | 253 | ||
254 | struct nand_onfi_params { | ||
255 | /* rev info and features block */ | ||
256 | /* 'O' 'N' 'F' 'I' */ | ||
257 | u8 sig[4]; | ||
258 | __le16 revision; | ||
259 | __le16 features; | ||
260 | __le16 opt_cmd; | ||
261 | u8 reserved[22]; | ||
262 | |||
263 | /* manufacturer information block */ | ||
264 | char manufacturer[12]; | ||
265 | char model[20]; | ||
266 | u8 jedec_id; | ||
267 | __le16 date_code; | ||
268 | u8 reserved2[13]; | ||
269 | |||
270 | /* memory organization block */ | ||
271 | __le32 byte_per_page; | ||
272 | __le16 spare_bytes_per_page; | ||
273 | __le32 data_bytes_per_ppage; | ||
274 | __le16 spare_bytes_per_ppage; | ||
275 | __le32 pages_per_block; | ||
276 | __le32 blocks_per_lun; | ||
277 | u8 lun_count; | ||
278 | u8 addr_cycles; | ||
279 | u8 bits_per_cell; | ||
280 | __le16 bb_per_lun; | ||
281 | __le16 block_endurance; | ||
282 | u8 guaranteed_good_blocks; | ||
283 | __le16 guaranteed_block_endurance; | ||
284 | u8 programs_per_page; | ||
285 | u8 ppage_attr; | ||
286 | u8 ecc_bits; | ||
287 | u8 interleaved_bits; | ||
288 | u8 interleaved_ops; | ||
289 | u8 reserved3[13]; | ||
290 | |||
291 | /* electrical parameter block */ | ||
292 | u8 io_pin_capacitance_max; | ||
293 | __le16 async_timing_mode; | ||
294 | __le16 program_cache_timing_mode; | ||
295 | __le16 t_prog; | ||
296 | __le16 t_bers; | ||
297 | __le16 t_r; | ||
298 | __le16 t_ccs; | ||
299 | __le16 src_sync_timing_mode; | ||
300 | __le16 src_ssync_features; | ||
301 | __le16 clk_pin_capacitance_typ; | ||
302 | __le16 io_pin_capacitance_typ; | ||
303 | __le16 input_pin_capacitance_typ; | ||
304 | u8 input_pin_capacitance_max; | ||
305 | u8 driver_strenght_support; | ||
306 | __le16 t_int_r; | ||
307 | __le16 t_ald; | ||
308 | u8 reserved4[7]; | ||
309 | |||
310 | /* vendor */ | ||
311 | u8 reserved5[90]; | ||
312 | |||
313 | __le16 crc; | ||
314 | } __attribute__((packed)); | ||
315 | |||
316 | #define ONFI_CRC_BASE 0x4F4E | ||
317 | |||
230 | /** | 318 | /** |
231 | * struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices | 319 | * struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices |
232 | * @lock: protection lock | 320 | * @lock: protection lock |
233 | * @active: the mtd device which holds the controller currently | 321 | * @active: the mtd device which holds the controller currently |
234 | * @wq: wait queue to sleep on if a NAND operation is in progress | 322 | * @wq: wait queue to sleep on if a NAND operation is in |
235 | * used instead of the per chip wait queue when a hw controller is available | 323 | * progress used instead of the per chip wait queue |
324 | * when a hw controller is available. | ||
236 | */ | 325 | */ |
237 | struct nand_hw_control { | 326 | struct nand_hw_control { |
238 | spinlock_t lock; | 327 | spinlock_t lock; |
239 | struct nand_chip *active; | 328 | struct nand_chip *active; |
240 | wait_queue_head_t wq; | 329 | wait_queue_head_t wq; |
241 | }; | 330 | }; |
@@ -256,51 +345,42 @@ struct nand_hw_control { | |||
256 | * @correct: function for ecc correction, matching to ecc generator (sw/hw) | 345 | * @correct: function for ecc correction, matching to ecc generator (sw/hw) |
257 | * @read_page_raw: function to read a raw page without ECC | 346 | * @read_page_raw: function to read a raw page without ECC |
258 | * @write_page_raw: function to write a raw page without ECC | 347 | * @write_page_raw: function to write a raw page without ECC |
259 | * @read_page: function to read a page according to the ecc generator requirements | 348 | * @read_page: function to read a page according to the ecc generator |
349 | * requirements. | ||
260 | * @read_subpage: function to read parts of the page covered by ECC. | 350 | * @read_subpage: function to read parts of the page covered by ECC. |
261 | * @write_page: function to write a page according to the ecc generator requirements | 351 | * @write_page: function to write a page according to the ecc generator |
352 | * requirements. | ||
262 | * @read_oob: function to read chip OOB data | 353 | * @read_oob: function to read chip OOB data |
263 | * @write_oob: function to write chip OOB data | 354 | * @write_oob: function to write chip OOB data |
264 | */ | 355 | */ |
265 | struct nand_ecc_ctrl { | 356 | struct nand_ecc_ctrl { |
266 | nand_ecc_modes_t mode; | 357 | nand_ecc_modes_t mode; |
267 | int steps; | 358 | int steps; |
268 | int size; | 359 | int size; |
269 | int bytes; | 360 | int bytes; |
270 | int total; | 361 | int total; |
271 | int prepad; | 362 | int prepad; |
272 | int postpad; | 363 | int postpad; |
273 | struct nand_ecclayout *layout; | 364 | struct nand_ecclayout *layout; |
274 | void (*hwctl)(struct mtd_info *mtd, int mode); | 365 | void (*hwctl)(struct mtd_info *mtd, int mode); |
275 | int (*calculate)(struct mtd_info *mtd, | 366 | int (*calculate)(struct mtd_info *mtd, const uint8_t *dat, |
276 | const uint8_t *dat, | 367 | uint8_t *ecc_code); |
277 | uint8_t *ecc_code); | 368 | int (*correct)(struct mtd_info *mtd, uint8_t *dat, uint8_t *read_ecc, |
278 | int (*correct)(struct mtd_info *mtd, uint8_t *dat, | 369 | uint8_t *calc_ecc); |
279 | uint8_t *read_ecc, | 370 | int (*read_page_raw)(struct mtd_info *mtd, struct nand_chip *chip, |
280 | uint8_t *calc_ecc); | 371 | uint8_t *buf, int page); |
281 | int (*read_page_raw)(struct mtd_info *mtd, | 372 | void (*write_page_raw)(struct mtd_info *mtd, struct nand_chip *chip, |
282 | struct nand_chip *chip, | 373 | const uint8_t *buf); |
283 | uint8_t *buf, int page); | 374 | int (*read_page)(struct mtd_info *mtd, struct nand_chip *chip, |
284 | void (*write_page_raw)(struct mtd_info *mtd, | 375 | uint8_t *buf, int page); |
285 | struct nand_chip *chip, | 376 | int (*read_subpage)(struct mtd_info *mtd, struct nand_chip *chip, |
286 | const uint8_t *buf); | 377 | uint32_t offs, uint32_t len, uint8_t *buf); |
287 | int (*read_page)(struct mtd_info *mtd, | 378 | void (*write_page)(struct mtd_info *mtd, struct nand_chip *chip, |
288 | struct nand_chip *chip, | 379 | const uint8_t *buf); |
289 | uint8_t *buf, int page); | 380 | int (*read_oob)(struct mtd_info *mtd, struct nand_chip *chip, int page, |
290 | int (*read_subpage)(struct mtd_info *mtd, | 381 | int sndcmd); |
291 | struct nand_chip *chip, | 382 | int (*write_oob)(struct mtd_info *mtd, struct nand_chip *chip, |
292 | uint32_t offs, uint32_t len, | 383 | int page); |
293 | uint8_t *buf); | ||
294 | void (*write_page)(struct mtd_info *mtd, | ||
295 | struct nand_chip *chip, | ||
296 | const uint8_t *buf); | ||
297 | int (*read_oob)(struct mtd_info *mtd, | ||
298 | struct nand_chip *chip, | ||
299 | int page, | ||
300 | int sndcmd); | ||
301 | int (*write_oob)(struct mtd_info *mtd, | ||
302 | struct nand_chip *chip, | ||
303 | int page); | ||
304 | }; | 384 | }; |
305 | 385 | ||
306 | /** | 386 | /** |
@@ -320,102 +400,132 @@ struct nand_buffers { | |||
320 | 400 | ||
321 | /** | 401 | /** |
322 | * struct nand_chip - NAND Private Flash Chip Data | 402 | * struct nand_chip - NAND Private Flash Chip Data |
323 | * @IO_ADDR_R: [BOARDSPECIFIC] address to read the 8 I/O lines of the flash device | 403 | * @IO_ADDR_R: [BOARDSPECIFIC] address to read the 8 I/O lines of the |
324 | * @IO_ADDR_W: [BOARDSPECIFIC] address to write the 8 I/O lines of the flash device | 404 | * flash device |
405 | * @IO_ADDR_W: [BOARDSPECIFIC] address to write the 8 I/O lines of the | ||
406 | * flash device. | ||
325 | * @read_byte: [REPLACEABLE] read one byte from the chip | 407 | * @read_byte: [REPLACEABLE] read one byte from the chip |
326 | * @read_word: [REPLACEABLE] read one word from the chip | 408 | * @read_word: [REPLACEABLE] read one word from the chip |
327 | * @write_buf: [REPLACEABLE] write data from the buffer to the chip | 409 | * @write_buf: [REPLACEABLE] write data from the buffer to the chip |
328 | * @read_buf: [REPLACEABLE] read data from the chip into the buffer | 410 | * @read_buf: [REPLACEABLE] read data from the chip into the buffer |
329 | * @verify_buf: [REPLACEABLE] verify buffer contents against the chip data | 411 | * @verify_buf: [REPLACEABLE] verify buffer contents against the chip |
412 | * data. | ||
330 | * @select_chip: [REPLACEABLE] select chip nr | 413 | * @select_chip: [REPLACEABLE] select chip nr |
331 | * @block_bad: [REPLACEABLE] check, if the block is bad | 414 | * @block_bad: [REPLACEABLE] check, if the block is bad |
332 | * @block_markbad: [REPLACEABLE] mark the block bad | 415 | * @block_markbad: [REPLACEABLE] mark the block bad |
333 | * @cmd_ctrl: [BOARDSPECIFIC] hardwarespecific funtion for controlling | 416 | * @cmd_ctrl: [BOARDSPECIFIC] hardwarespecific funtion for controlling |
334 | * ALE/CLE/nCE. Also used to write command and address | 417 | * ALE/CLE/nCE. Also used to write command and address |
335 | * @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accesing device ready/busy line | 418 | * @init_size: [BOARDSPECIFIC] hardwarespecific funtion for setting |
336 | * If set to NULL no access to ready/busy is available and the ready/busy information | 419 | * mtd->oobsize, mtd->writesize and so on. |
337 | * is read from the chip status register | 420 | * @id_data contains the 8 bytes values of NAND_CMD_READID. |
338 | * @cmdfunc: [REPLACEABLE] hardwarespecific function for writing commands to the chip | 421 | * Return with the bus width. |
339 | * @waitfunc: [REPLACEABLE] hardwarespecific function for wait on ready | 422 | * @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accesing |
423 | * device ready/busy line. If set to NULL no access to | ||
424 | * ready/busy is available and the ready/busy information | ||
425 | * is read from the chip status register. | ||
426 | * @cmdfunc: [REPLACEABLE] hardwarespecific function for writing | ||
427 | * commands to the chip. | ||
428 | * @waitfunc: [REPLACEABLE] hardwarespecific function for wait on | ||
429 | * ready. | ||
340 | * @ecc: [BOARDSPECIFIC] ecc control ctructure | 430 | * @ecc: [BOARDSPECIFIC] ecc control ctructure |
341 | * @buffers: buffer structure for read/write | 431 | * @buffers: buffer structure for read/write |
342 | * @hwcontrol: platform-specific hardware control structure | 432 | * @hwcontrol: platform-specific hardware control structure |
343 | * @ops: oob operation operands | 433 | * @ops: oob operation operands |
344 | * @erase_cmd: [INTERN] erase command write function, selectable due to AND support | 434 | * @erase_cmd: [INTERN] erase command write function, selectable due |
435 | * to AND support. | ||
345 | * @scan_bbt: [REPLACEABLE] function to scan bad block table | 436 | * @scan_bbt: [REPLACEABLE] function to scan bad block table |
346 | * @chip_delay: [BOARDSPECIFIC] chip dependent delay for transfering data from array to read regs (tR) | 437 | * @chip_delay: [BOARDSPECIFIC] chip dependent delay for transfering |
438 | * data from array to read regs (tR). | ||
347 | * @state: [INTERN] the current state of the NAND device | 439 | * @state: [INTERN] the current state of the NAND device |
348 | * @oob_poi: poison value buffer | 440 | * @oob_poi: poison value buffer |
349 | * @page_shift: [INTERN] number of address bits in a page (column address bits) | 441 | * @page_shift: [INTERN] number of address bits in a page (column |
442 | * address bits). | ||
350 | * @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock | 443 | * @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock |
351 | * @bbt_erase_shift: [INTERN] number of address bits in a bbt entry | 444 | * @bbt_erase_shift: [INTERN] number of address bits in a bbt entry |
352 | * @chip_shift: [INTERN] number of address bits in one chip | 445 | * @chip_shift: [INTERN] number of address bits in one chip |
353 | * @options: [BOARDSPECIFIC] various chip options. They can partly be set to inform nand_scan about | 446 | * @options: [BOARDSPECIFIC] various chip options. They can partly |
354 | * special functionality. See the defines for further explanation | 447 | * be set to inform nand_scan about special functionality. |
355 | * @badblockpos: [INTERN] position of the bad block marker in the oob area | 448 | * See the defines for further explanation. |
449 | * @badblockpos: [INTERN] position of the bad block marker in the oob | ||
450 | * area. | ||
356 | * @cellinfo: [INTERN] MLC/multichip data from chip ident | 451 | * @cellinfo: [INTERN] MLC/multichip data from chip ident |
357 | * @numchips: [INTERN] number of physical chips | 452 | * @numchips: [INTERN] number of physical chips |
358 | * @chipsize: [INTERN] the size of one chip for multichip arrays | 453 | * @chipsize: [INTERN] the size of one chip for multichip arrays |
359 | * @pagemask: [INTERN] page number mask = number of (pages / chip) - 1 | 454 | * @pagemask: [INTERN] page number mask = number of (pages / chip) - 1 |
360 | * @pagebuf: [INTERN] holds the pagenumber which is currently in data_buf | 455 | * @pagebuf: [INTERN] holds the pagenumber which is currently in |
456 | * data_buf. | ||
361 | * @subpagesize: [INTERN] holds the subpagesize | 457 | * @subpagesize: [INTERN] holds the subpagesize |
458 | * @onfi_version: [INTERN] holds the chip ONFI version (BCD encoded), | ||
459 | * non 0 if ONFI supported. | ||
460 | * @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is | ||
461 | * supported, 0 otherwise. | ||
362 | * @ecclayout: [REPLACEABLE] the default ecc placement scheme | 462 | * @ecclayout: [REPLACEABLE] the default ecc placement scheme |
363 | * @bbt: [INTERN] bad block table pointer | 463 | * @bbt: [INTERN] bad block table pointer |
364 | * @bbt_td: [REPLACEABLE] bad block table descriptor for flash lookup | 464 | * @bbt_td: [REPLACEABLE] bad block table descriptor for flash |
465 | * lookup. | ||
365 | * @bbt_md: [REPLACEABLE] bad block table mirror descriptor | 466 | * @bbt_md: [REPLACEABLE] bad block table mirror descriptor |
366 | * @badblock_pattern: [REPLACEABLE] bad block scan pattern used for initial bad block scan | 467 | * @badblock_pattern: [REPLACEABLE] bad block scan pattern used for initial |
367 | * @controller: [REPLACEABLE] a pointer to a hardware controller structure | 468 | * bad block scan. |
368 | * which is shared among multiple independend devices | 469 | * @controller: [REPLACEABLE] a pointer to a hardware controller |
470 | * structure which is shared among multiple independend | ||
471 | * devices. | ||
369 | * @priv: [OPTIONAL] pointer to private chip date | 472 | * @priv: [OPTIONAL] pointer to private chip date |
370 | * @errstat: [OPTIONAL] hardware specific function to perform additional error status checks | 473 | * @errstat: [OPTIONAL] hardware specific function to perform |
371 | * (determine if errors are correctable) | 474 | * additional error status checks (determine if errors are |
475 | * correctable). | ||
372 | * @write_page: [REPLACEABLE] High-level page write function | 476 | * @write_page: [REPLACEABLE] High-level page write function |
373 | */ | 477 | */ |
374 | 478 | ||
375 | struct nand_chip { | 479 | struct nand_chip { |
376 | void __iomem *IO_ADDR_R; | 480 | void __iomem *IO_ADDR_R; |
377 | void __iomem *IO_ADDR_W; | 481 | void __iomem *IO_ADDR_W; |
378 | 482 | ||
379 | uint8_t (*read_byte)(struct mtd_info *mtd); | 483 | uint8_t (*read_byte)(struct mtd_info *mtd); |
380 | u16 (*read_word)(struct mtd_info *mtd); | 484 | u16 (*read_word)(struct mtd_info *mtd); |
381 | void (*write_buf)(struct mtd_info *mtd, const uint8_t *buf, int len); | 485 | void (*write_buf)(struct mtd_info *mtd, const uint8_t *buf, int len); |
382 | void (*read_buf)(struct mtd_info *mtd, uint8_t *buf, int len); | 486 | void (*read_buf)(struct mtd_info *mtd, uint8_t *buf, int len); |
383 | int (*verify_buf)(struct mtd_info *mtd, const uint8_t *buf, int len); | 487 | int (*verify_buf)(struct mtd_info *mtd, const uint8_t *buf, int len); |
384 | void (*select_chip)(struct mtd_info *mtd, int chip); | 488 | void (*select_chip)(struct mtd_info *mtd, int chip); |
385 | int (*block_bad)(struct mtd_info *mtd, loff_t ofs, int getchip); | 489 | int (*block_bad)(struct mtd_info *mtd, loff_t ofs, int getchip); |
386 | int (*block_markbad)(struct mtd_info *mtd, loff_t ofs); | 490 | int (*block_markbad)(struct mtd_info *mtd, loff_t ofs); |
387 | void (*cmd_ctrl)(struct mtd_info *mtd, int dat, | 491 | void (*cmd_ctrl)(struct mtd_info *mtd, int dat, unsigned int ctrl); |
388 | unsigned int ctrl); | 492 | int (*init_size)(struct mtd_info *mtd, struct nand_chip *this, |
389 | int (*dev_ready)(struct mtd_info *mtd); | 493 | u8 *id_data); |
390 | void (*cmdfunc)(struct mtd_info *mtd, unsigned command, int column, int page_addr); | 494 | int (*dev_ready)(struct mtd_info *mtd); |
391 | int (*waitfunc)(struct mtd_info *mtd, struct nand_chip *this); | 495 | void (*cmdfunc)(struct mtd_info *mtd, unsigned command, int column, |
392 | void (*erase_cmd)(struct mtd_info *mtd, int page); | 496 | int page_addr); |
393 | int (*scan_bbt)(struct mtd_info *mtd); | 497 | int(*waitfunc)(struct mtd_info *mtd, struct nand_chip *this); |
394 | int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state, int status, int page); | 498 | void (*erase_cmd)(struct mtd_info *mtd, int page); |
395 | int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip, | 499 | int (*scan_bbt)(struct mtd_info *mtd); |
396 | const uint8_t *buf, int page, int cached, int raw); | 500 | int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state, |
397 | 501 | int status, int page); | |
398 | int chip_delay; | 502 | int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip, |
399 | unsigned int options; | 503 | const uint8_t *buf, int page, int cached, int raw); |
400 | 504 | ||
401 | int page_shift; | 505 | int chip_delay; |
402 | int phys_erase_shift; | 506 | unsigned int options; |
403 | int bbt_erase_shift; | 507 | |
404 | int chip_shift; | 508 | int page_shift; |
405 | int numchips; | 509 | int phys_erase_shift; |
406 | uint64_t chipsize; | 510 | int bbt_erase_shift; |
407 | int pagemask; | 511 | int chip_shift; |
408 | int pagebuf; | 512 | int numchips; |
409 | int subpagesize; | 513 | uint64_t chipsize; |
410 | uint8_t cellinfo; | 514 | int pagemask; |
411 | int badblockpos; | 515 | int pagebuf; |
412 | int badblockbits; | 516 | int subpagesize; |
413 | 517 | uint8_t cellinfo; | |
414 | flstate_t state; | 518 | int badblockpos; |
415 | 519 | int badblockbits; | |
416 | uint8_t *oob_poi; | 520 | |
417 | struct nand_hw_control *controller; | 521 | int onfi_version; |
418 | struct nand_ecclayout *ecclayout; | 522 | struct nand_onfi_params onfi_params; |
523 | |||
524 | flstate_t state; | ||
525 | |||
526 | uint8_t *oob_poi; | ||
527 | struct nand_hw_control *controller; | ||
528 | struct nand_ecclayout *ecclayout; | ||
419 | 529 | ||
420 | struct nand_ecc_ctrl ecc; | 530 | struct nand_ecc_ctrl ecc; |
421 | struct nand_buffers *buffers; | 531 | struct nand_buffers *buffers; |
@@ -423,13 +533,13 @@ struct nand_chip { | |||
423 | 533 | ||
424 | struct mtd_oob_ops ops; | 534 | struct mtd_oob_ops ops; |
425 | 535 | ||
426 | uint8_t *bbt; | 536 | uint8_t *bbt; |
427 | struct nand_bbt_descr *bbt_td; | 537 | struct nand_bbt_descr *bbt_td; |
428 | struct nand_bbt_descr *bbt_md; | 538 | struct nand_bbt_descr *bbt_md; |
429 | 539 | ||
430 | struct nand_bbt_descr *badblock_pattern; | 540 | struct nand_bbt_descr *badblock_pattern; |
431 | 541 | ||
432 | void *priv; | 542 | void *priv; |
433 | }; | 543 | }; |
434 | 544 | ||
435 | /* | 545 | /* |
@@ -473,7 +583,7 @@ struct nand_flash_dev { | |||
473 | */ | 583 | */ |
474 | struct nand_manufacturers { | 584 | struct nand_manufacturers { |
475 | int id; | 585 | int id; |
476 | char * name; | 586 | char *name; |
477 | }; | 587 | }; |
478 | 588 | ||
479 | extern struct nand_flash_dev nand_flash_ids[]; | 589 | extern struct nand_flash_dev nand_flash_ids[]; |
@@ -486,7 +596,7 @@ extern int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt); | |||
486 | extern int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, | 596 | extern int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, |
487 | int allowbbt); | 597 | int allowbbt); |
488 | extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len, | 598 | extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len, |
489 | size_t * retlen, uint8_t * buf); | 599 | size_t *retlen, uint8_t *buf); |
490 | 600 | ||
491 | /** | 601 | /** |
492 | * struct platform_nand_chip - chip level device structure | 602 | * struct platform_nand_chip - chip level device structure |
@@ -502,17 +612,16 @@ extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len, | |||
502 | * @priv: hardware controller specific settings | 612 | * @priv: hardware controller specific settings |
503 | */ | 613 | */ |
504 | struct platform_nand_chip { | 614 | struct platform_nand_chip { |
505 | int nr_chips; | 615 | int nr_chips; |
506 | int chip_offset; | 616 | int chip_offset; |
507 | int nr_partitions; | 617 | int nr_partitions; |
508 | struct mtd_partition *partitions; | 618 | struct mtd_partition *partitions; |
509 | struct nand_ecclayout *ecclayout; | 619 | struct nand_ecclayout *ecclayout; |
510 | int chip_delay; | 620 | int chip_delay; |
511 | unsigned int options; | 621 | unsigned int options; |
512 | const char **part_probe_types; | 622 | const char **part_probe_types; |
513 | void (*set_parts)(uint64_t size, | 623 | void (*set_parts)(uint64_t size, struct platform_nand_chip *chip); |
514 | struct platform_nand_chip *chip); | 624 | void *priv; |
515 | void *priv; | ||
516 | }; | 625 | }; |
517 | 626 | ||
518 | /* Keep gcc happy */ | 627 | /* Keep gcc happy */ |
@@ -534,18 +643,15 @@ struct platform_device; | |||
534 | * All fields are optional and depend on the hardware driver requirements | 643 | * All fields are optional and depend on the hardware driver requirements |
535 | */ | 644 | */ |
536 | struct platform_nand_ctrl { | 645 | struct platform_nand_ctrl { |
537 | int (*probe)(struct platform_device *pdev); | 646 | int (*probe)(struct platform_device *pdev); |
538 | void (*remove)(struct platform_device *pdev); | 647 | void (*remove)(struct platform_device *pdev); |
539 | void (*hwcontrol)(struct mtd_info *mtd, int cmd); | 648 | void (*hwcontrol)(struct mtd_info *mtd, int cmd); |
540 | int (*dev_ready)(struct mtd_info *mtd); | 649 | int (*dev_ready)(struct mtd_info *mtd); |
541 | void (*select_chip)(struct mtd_info *mtd, int chip); | 650 | void (*select_chip)(struct mtd_info *mtd, int chip); |
542 | void (*cmd_ctrl)(struct mtd_info *mtd, int dat, | 651 | void (*cmd_ctrl)(struct mtd_info *mtd, int dat, unsigned int ctrl); |
543 | unsigned int ctrl); | 652 | void (*write_buf)(struct mtd_info *mtd, const uint8_t *buf, int len); |
544 | void (*write_buf)(struct mtd_info *mtd, | 653 | void (*read_buf)(struct mtd_info *mtd, uint8_t *buf, int len); |
545 | const uint8_t *buf, int len); | 654 | void *priv; |
546 | void (*read_buf)(struct mtd_info *mtd, | ||
547 | uint8_t *buf, int len); | ||
548 | void *priv; | ||
549 | }; | 655 | }; |
550 | 656 | ||
551 | /** | 657 | /** |
@@ -554,8 +660,8 @@ struct platform_nand_ctrl { | |||
554 | * @ctrl: controller level device structure | 660 | * @ctrl: controller level device structure |
555 | */ | 661 | */ |
556 | struct platform_nand_data { | 662 | struct platform_nand_data { |
557 | struct platform_nand_chip chip; | 663 | struct platform_nand_chip chip; |
558 | struct platform_nand_ctrl ctrl; | 664 | struct platform_nand_ctrl ctrl; |
559 | }; | 665 | }; |
560 | 666 | ||
561 | /* Some helpers to access the data structures */ | 667 | /* Some helpers to access the data structures */ |