drivers/mtd/nand/denali.h

   1 /*
   2  * NAND Flash Controller Device Driver
   3  * Copyright (c) 2009 - 2010, Intel Corporation and its suppliers.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  */
  19
  20 #include <linux/mtd/nand.h>
  21
  22 #define DEVICE_RESET                            0x0
  23 #define     DEVICE_RESET__BANK0                         0x0001
  24 #define     DEVICE_RESET__BANK1                         0x0002
  25 #define     DEVICE_RESET__BANK2                         0x0004
  26 #define     DEVICE_RESET__BANK3                         0x0008
  27
  28 #define TRANSFER_SPARE_REG                      0x10
  29 #define     TRANSFER_SPARE_REG__FLAG                    0x0001
  30
  31 #define LOAD_WAIT_CNT                           0x20
  32 #define     LOAD_WAIT_CNT__VALUE                        0xffff
  33
  34 #define PROGRAM_WAIT_CNT                        0x30
  35 #define     PROGRAM_WAIT_CNT__VALUE                     0xffff
  36
  37 #define ERASE_WAIT_CNT                          0x40
  38 #define     ERASE_WAIT_CNT__VALUE                       0xffff
  39
  40 #define INT_MON_CYCCNT                          0x50
  41 #define     INT_MON_CYCCNT__VALUE                       0xffff
  42
  43 #define RB_PIN_ENABLED                          0x60
  44 #define     RB_PIN_ENABLED__BANK0                       0x0001
  45 #define     RB_PIN_ENABLED__BANK1                       0x0002
  46 #define     RB_PIN_ENABLED__BANK2                       0x0004
  47 #define     RB_PIN_ENABLED__BANK3                       0x0008
  48
  49 #define MULTIPLANE_OPERATION                    0x70
  50 #define     MULTIPLANE_OPERATION__FLAG                  0x0001
  51
  52 #define MULTIPLANE_READ_ENABLE                  0x80
  53 #define     MULTIPLANE_READ_ENABLE__FLAG                0x0001
  54
  55 #define COPYBACK_DISABLE                        0x90
  56 #define     COPYBACK_DISABLE__FLAG                      0x0001
  57
  58 #define CACHE_WRITE_ENABLE                      0xa0
  59 #define     CACHE_WRITE_ENABLE__FLAG                    0x0001
  60
  61 #define CACHE_READ_ENABLE                       0xb0
  62 #define     CACHE_READ_ENABLE__FLAG                     0x0001
  63
  64 #define PREFETCH_MODE                           0xc0
  65 #define     PREFETCH_MODE__PREFETCH_EN                  0x0001
  66 #define     PREFETCH_MODE__PREFETCH_BURST_LENGTH        0xfff0
  67
  68 #define CHIP_ENABLE_DONT_CARE                   0xd0
  69 #define     CHIP_EN_DONT_CARE__FLAG                     0x01
  70
  71 #define ECC_ENABLE                              0xe0
  72 #define     ECC_ENABLE__FLAG                            0x0001
  73
  74 #define GLOBAL_INT_ENABLE                       0xf0
  75 #define     GLOBAL_INT_EN_FLAG                          0x01
  76
  77 #define WE_2_RE                                 0x100
  78 #define     WE_2_RE__VALUE                              0x003f
  79
  80 #define ADDR_2_DATA                             0x110
  81 #define     ADDR_2_DATA__VALUE                          0x003f
  82
  83 #define RE_2_WE                                 0x120
  84 #define     RE_2_WE__VALUE                              0x003f
  85
  86 #define ACC_CLKS                                0x130
  87 #define     ACC_CLKS__VALUE                             0x000f
  88
  89 #define NUMBER_OF_PLANES                        0x140
  90 #define     NUMBER_OF_PLANES__VALUE                     0x0007
  91
  92 #define PAGES_PER_BLOCK                         0x150
  93 #define     PAGES_PER_BLOCK__VALUE                      0xffff
  94
  95 #define DEVICE_WIDTH                            0x160
  96 #define     DEVICE_WIDTH__VALUE                         0x0003
  97
  98 #define DEVICE_MAIN_AREA_SIZE                   0x170
  99 #define     DEVICE_MAIN_AREA_SIZE__VALUE                0xffff
 100
 101 #define DEVICE_SPARE_AREA_SIZE                  0x180
 102 #define     DEVICE_SPARE_AREA_SIZE__VALUE               0xffff
 103
 104 #define TWO_ROW_ADDR_CYCLES                     0x190
 105 #define     TWO_ROW_ADDR_CYCLES__FLAG                   0x0001
 106
 107 #define MULTIPLANE_ADDR_RESTRICT                0x1a0
 108 #define     MULTIPLANE_ADDR_RESTRICT__FLAG              0x0001
 109
 110 #define ECC_CORRECTION                          0x1b0
 111 #define     ECC_CORRECTION__VALUE                       0x001f
 112
 113 #define READ_MODE                               0x1c0
 114 #define     READ_MODE__VALUE                            0x000f
 115
 116 #define WRITE_MODE                              0x1d0
 117 #define     WRITE_MODE__VALUE                           0x000f
 118
 119 #define COPYBACK_MODE                           0x1e0
 120 #define     COPYBACK_MODE__VALUE                        0x000f
 121
 122 #define RDWR_EN_LO_CNT                          0x1f0
 123 #define     RDWR_EN_LO_CNT__VALUE                       0x001f
 124
 125 #define RDWR_EN_HI_CNT                          0x200
 126 #define     RDWR_EN_HI_CNT__VALUE                       0x001f
 127
 128 #define MAX_RD_DELAY                            0x210
 129 #define     MAX_RD_DELAY__VALUE                         0x000f
 130
 131 #define CS_SETUP_CNT                            0x220
 132 #define     CS_SETUP_CNT__VALUE                         0x001f
 133
 134 #define SPARE_AREA_SKIP_BYTES                   0x230
 135 #define     SPARE_AREA_SKIP_BYTES__VALUE                0x003f
 136
 137 #define SPARE_AREA_MARKER                       0x240
 138 #define     SPARE_AREA_MARKER__VALUE                    0xffff
 139
 140 #define DEVICES_CONNECTED                       0x250
 141 #define     DEVICES_CONNECTED__VALUE                    0x0007
 142
 143 #define DIE_MASK                                0x260
 144 #define     DIE_MASK__VALUE                             0x00ff
 145
 146 #define FIRST_BLOCK_OF_NEXT_PLANE               0x270
 147 #define     FIRST_BLOCK_OF_NEXT_PLANE__VALUE            0xffff
 148
 149 #define WRITE_PROTECT                           0x280
 150 #define     WRITE_PROTECT__FLAG                         0x0001
 151
 152 #define RE_2_RE                                 0x290
 153 #define     RE_2_RE__VALUE                              0x003f
 154
 155 #define MANUFACTURER_ID                         0x300
 156 #define     MANUFACTURER_ID__VALUE                      0x00ff
 157
 158 #define DEVICE_ID                               0x310
 159 #define     DEVICE_ID__VALUE                            0x00ff
 160
 161 #define DEVICE_PARAM_0                          0x320
 162 #define     DEVICE_PARAM_0__VALUE                       0x00ff
 163
 164 #define DEVICE_PARAM_1                          0x330
 165 #define     DEVICE_PARAM_1__VALUE                       0x00ff
 166
 167 #define DEVICE_PARAM_2                          0x340
 168 #define     DEVICE_PARAM_2__VALUE                       0x00ff
 169
 170 #define LOGICAL_PAGE_DATA_SIZE                  0x350
 171 #define     LOGICAL_PAGE_DATA_SIZE__VALUE               0xffff
 172
 173 #define LOGICAL_PAGE_SPARE_SIZE                 0x360
 174 #define     LOGICAL_PAGE_SPARE_SIZE__VALUE              0xffff
 175
 176 #define REVISION                                0x370
 177 #define     REVISION__VALUE                             0xffff
 178
 179 #define ONFI_DEVICE_FEATURES                    0x380
 180 #define     ONFI_DEVICE_FEATURES__VALUE                 0x003f
 181
 182 #define ONFI_OPTIONAL_COMMANDS                  0x390
 183 #define     ONFI_OPTIONAL_COMMANDS__VALUE               0x003f
 184
 185 #define ONFI_TIMING_MODE                        0x3a0
 186 #define     ONFI_TIMING_MODE__VALUE                     0x003f
 187
 188 #define ONFI_PGM_CACHE_TIMING_MODE              0x3b0
 189 #define     ONFI_PGM_CACHE_TIMING_MODE__VALUE           0x003f
 190
 191 #define ONFI_DEVICE_NO_OF_LUNS                  0x3c0
 192 #define     ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS          0x00ff
 193 #define     ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE         0x0100
 194
 195 #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L      0x3d0
 196 #define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L__VALUE   0xffff
 197
 198 #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U      0x3e0
 199 #define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U__VALUE   0xffff
 200
 201 #define FEATURES                                        0x3f0
 202 #define     FEATURES__N_BANKS                           0x0003
 203 #define     FEATURES__ECC_MAX_ERR                       0x003c
 204 #define     FEATURES__DMA                               0x0040
 205 #define     FEATURES__CMD_DMA                           0x0080
 206 #define     FEATURES__PARTITION                         0x0100
 207 #define     FEATURES__XDMA_SIDEBAND                     0x0200
 208 #define     FEATURES__GPREG                             0x0400
 209 #define     FEATURES__INDEX_ADDR                        0x0800
 210
 211 #define TRANSFER_MODE                           0x400
 212 #define     TRANSFER_MODE__VALUE                        0x0003
 213
 214 #define INTR_STATUS(__bank)     (0x410 + ((__bank) * 0x50))
 215 #define INTR_EN(__bank)         (0x420 + ((__bank) * 0x50))
 216
 217 #define     INTR_STATUS__ECC_TRANSACTION_DONE           0x0001
 218 #define     INTR_STATUS__ECC_ERR                        0x0002
 219 #define     INTR_STATUS__DMA_CMD_COMP                   0x0004
 220 #define     INTR_STATUS__TIME_OUT                       0x0008
 221 #define     INTR_STATUS__PROGRAM_FAIL                   0x0010
 222 #define     INTR_STATUS__ERASE_FAIL                     0x0020
 223 #define     INTR_STATUS__LOAD_COMP                      0x0040
 224 #define     INTR_STATUS__PROGRAM_COMP                   0x0080
 225 #define     INTR_STATUS__ERASE_COMP                     0x0100
 226 #define     INTR_STATUS__PIPE_CPYBCK_CMD_COMP           0x0200
 227 #define     INTR_STATUS__LOCKED_BLK                     0x0400
 228 #define     INTR_STATUS__UNSUP_CMD                      0x0800
 229 #define     INTR_STATUS__INT_ACT                        0x1000
 230 #define     INTR_STATUS__RST_COMP                       0x2000
 231 #define     INTR_STATUS__PIPE_CMD_ERR                   0x4000
 232 #define     INTR_STATUS__PAGE_XFER_INC                  0x8000
 233
 234 #define     INTR_EN__ECC_TRANSACTION_DONE               0x0001
 235 #define     INTR_EN__ECC_ERR                            0x0002
 236 #define     INTR_EN__DMA_CMD_COMP                       0x0004
 237 #define     INTR_EN__TIME_OUT                           0x0008
 238 #define     INTR_EN__PROGRAM_FAIL                       0x0010
 239 #define     INTR_EN__ERASE_FAIL                         0x0020
 240 #define     INTR_EN__LOAD_COMP                          0x0040
 241 #define     INTR_EN__PROGRAM_COMP                       0x0080
 242 #define     INTR_EN__ERASE_COMP                         0x0100
 243 #define     INTR_EN__PIPE_CPYBCK_CMD_COMP               0x0200
 244 #define     INTR_EN__LOCKED_BLK                         0x0400
 245 #define     INTR_EN__UNSUP_CMD                          0x0800
 246 #define     INTR_EN__INT_ACT                            0x1000
 247 #define     INTR_EN__RST_COMP                           0x2000
 248 #define     INTR_EN__PIPE_CMD_ERR                       0x4000
 249 #define     INTR_EN__PAGE_XFER_INC                      0x8000
 250
 251 #define PAGE_CNT(__bank)        (0x430 + ((__bank) * 0x50))
 252 #define ERR_PAGE_ADDR(__bank)   (0x440 + ((__bank) * 0x50))
 253 #define ERR_BLOCK_ADDR(__bank)  (0x450 + ((__bank) * 0x50))
 254
 255 #define DATA_INTR                               0x550
 256 #define     DATA_INTR__WRITE_SPACE_AV                   0x0001
 257 #define     DATA_INTR__READ_DATA_AV                     0x0002
 258
 259 #define DATA_INTR_EN                            0x560
 260 #define     DATA_INTR_EN__WRITE_SPACE_AV                0x0001
 261 #define     DATA_INTR_EN__READ_DATA_AV                  0x0002
 262
 263 #define GPREG_0                                 0x570
 264 #define     GPREG_0__VALUE                              0xffff
 265
 266 #define GPREG_1                                 0x580
 267 #define     GPREG_1__VALUE                              0xffff
 268
 269 #define GPREG_2                                 0x590
 270 #define     GPREG_2__VALUE                              0xffff
 271
 272 #define GPREG_3                                 0x5a0
 273 #define     GPREG_3__VALUE                              0xffff
 274
 275 #define ECC_THRESHOLD                           0x600
 276 #define     ECC_THRESHOLD__VALUE                        0x03ff
 277
 278 #define ECC_ERROR_BLOCK_ADDRESS                 0x610
 279 #define     ECC_ERROR_BLOCK_ADDRESS__VALUE              0xffff
 280
 281 #define ECC_ERROR_PAGE_ADDRESS                  0x620
 282 #define     ECC_ERROR_PAGE_ADDRESS__VALUE               0x0fff
 283 #define     ECC_ERROR_PAGE_ADDRESS__BANK                0xf000
 284
 285 #define ECC_ERROR_ADDRESS                       0x630
 286 #define     ECC_ERROR_ADDRESS__OFFSET                   0x0fff
 287 #define     ECC_ERROR_ADDRESS__SECTOR_NR                0xf000
 288
 289 #define ERR_CORRECTION_INFO                     0x640
 290 #define     ERR_CORRECTION_INFO__BYTEMASK               0x00ff
 291 #define     ERR_CORRECTION_INFO__DEVICE_NR              0x0f00
 292 #define     ERR_CORRECTION_INFO__ERROR_TYPE             0x4000
 293 #define     ERR_CORRECTION_INFO__LAST_ERR_INFO          0x8000
 294
 295 #define DMA_ENABLE                              0x700
 296 #define     DMA_ENABLE__FLAG                            0x0001
 297
 298 #define IGNORE_ECC_DONE                         0x710
 299 #define     IGNORE_ECC_DONE__FLAG                       0x0001
 300
 301 #define DMA_INTR                                0x720
 302 #define     DMA_INTR__TARGET_ERROR                      0x0001
 303 #define     DMA_INTR__DESC_COMP_CHANNEL0                0x0002
 304 #define     DMA_INTR__DESC_COMP_CHANNEL1                0x0004
 305 #define     DMA_INTR__DESC_COMP_CHANNEL2                0x0008
 306 #define     DMA_INTR__DESC_COMP_CHANNEL3                0x0010
 307 #define     DMA_INTR__MEMCOPY_DESC_COMP         0x0020
 308
 309 #define DMA_INTR_EN                             0x730
 310 #define     DMA_INTR_EN__TARGET_ERROR                   0x0001
 311 #define     DMA_INTR_EN__DESC_COMP_CHANNEL0             0x0002
 312 #define     DMA_INTR_EN__DESC_COMP_CHANNEL1             0x0004
 313 #define     DMA_INTR_EN__DESC_COMP_CHANNEL2             0x0008
 314 #define     DMA_INTR_EN__DESC_COMP_CHANNEL3             0x0010
 315 #define     DMA_INTR_EN__MEMCOPY_DESC_COMP              0x0020
 316
 317 #define TARGET_ERR_ADDR_LO                      0x740
 318 #define     TARGET_ERR_ADDR_LO__VALUE                   0xffff
 319
 320 #define TARGET_ERR_ADDR_HI                      0x750
 321 #define     TARGET_ERR_ADDR_HI__VALUE                   0xffff
 322
 323 #define CHNL_ACTIVE                             0x760
 324 #define     CHNL_ACTIVE__CHANNEL0                       0x0001
 325 #define     CHNL_ACTIVE__CHANNEL1                       0x0002
 326 #define     CHNL_ACTIVE__CHANNEL2                       0x0004
 327 #define     CHNL_ACTIVE__CHANNEL3                       0x0008
 328
 329 #define ACTIVE_SRC_ID                           0x800
 330 #define     ACTIVE_SRC_ID__VALUE                        0x00ff
 331
 332 #define PTN_INTR                                        0x810
 333 #define     PTN_INTR__CONFIG_ERROR                      0x0001
 334 #define     PTN_INTR__ACCESS_ERROR_BANK0                0x0002
 335 #define     PTN_INTR__ACCESS_ERROR_BANK1                0x0004
 336 #define     PTN_INTR__ACCESS_ERROR_BANK2                0x0008
 337 #define     PTN_INTR__ACCESS_ERROR_BANK3                0x0010
 338 #define     PTN_INTR__REG_ACCESS_ERROR                  0x0020
 339
 340 #define PTN_INTR_EN                             0x820
 341 #define     PTN_INTR_EN__CONFIG_ERROR                   0x0001
 342 #define     PTN_INTR_EN__ACCESS_ERROR_BANK0             0x0002
 343 #define     PTN_INTR_EN__ACCESS_ERROR_BANK1             0x0004
 344 #define     PTN_INTR_EN__ACCESS_ERROR_BANK2             0x0008
 345 #define     PTN_INTR_EN__ACCESS_ERROR_BANK3             0x0010
 346 #define     PTN_INTR_EN__REG_ACCESS_ERROR               0x0020
 347
 348 #define PERM_SRC_ID(__bank)     (0x830 + ((__bank) * 0x40))
 349 #define     PERM_SRC_ID__SRCID                          0x00ff
 350 #define     PERM_SRC_ID__DIRECT_ACCESS_ACTIVE           0x0800
 351 #define     PERM_SRC_ID__WRITE_ACTIVE                   0x2000
 352 #define     PERM_SRC_ID__READ_ACTIVE                    0x4000
 353 #define     PERM_SRC_ID__PARTITION_VALID                0x8000
 354
 355 #define MIN_BLK_ADDR(__bank)    (0x840 + ((__bank) * 0x40))
 356 #define     MIN_BLK_ADDR__VALUE                         0xffff
 357
 358 #define MAX_BLK_ADDR(__bank)    (0x850 + ((__bank) * 0x40))
 359 #define     MAX_BLK_ADDR__VALUE                         0xffff
 360
 361 #define MIN_MAX_BANK(__bank)    (0x860 + ((__bank) * 0x40))
 362 #define     MIN_MAX_BANK__MIN_VALUE                     0x0003
 363 #define     MIN_MAX_BANK__MAX_VALUE                     0x000c
 364
 365
 366 /* ffsdefs.h */
 367 #define CLEAR 0                 /*use this to clear a field instead of "fail"*/
 368 #define SET   1                 /*use this to set a field instead of "pass"*/
 369 #define FAIL 1                  /*failed flag*/
 370 #define PASS 0                  /*success flag*/
 371 #define ERR -1                  /*error flag*/
 372
 373 /* lld.h */
 374 #define GOOD_BLOCK 0
 375 #define DEFECTIVE_BLOCK 1
 376 #define READ_ERROR 2
 377
 378 #define CLK_X  5
 379 #define CLK_MULTI 4
 380
 381 /* spectraswconfig.h */
 382 #define CMD_DMA 0
 383
 384 #define SPECTRA_PARTITION_ID    0
 385 /**** Block Table and Reserved Block Parameters *****/
 386 #define SPECTRA_START_BLOCK     3
 387 #define NUM_FREE_BLOCKS_GATE    30
 388
 389 /* KBV - Updated to LNW scratch register address */
 390 #define SCRATCH_REG_ADDR    CONFIG_MTD_NAND_DENALI_SCRATCH_REG_ADDR
 391 #define SCRATCH_REG_SIZE    64
 392
 393 #define GLOB_HWCTL_DEFAULT_BLKS    2048
 394
 395 #define SUPPORT_15BITECC        1
 396 #define SUPPORT_8BITECC         1
 397
 398 #define CUSTOM_CONF_PARAMS      0
 399
 400 #define ONFI_BLOOM_TIME         1
 401 #define MODE5_WORKAROUND        0
 402
 403 /* lld_nand.h */
 404 /*
 405  * NAND Flash Controller Device Driver
 406  * Copyright (c) 2009, Intel Corporation and its suppliers.
 407  *
 408  * This program is free software; you can redistribute it and/or modify it
 409  * under the terms and conditions of the GNU General Public License,
 410  * version 2, as published by the Free Software Foundation.
 411  *
 412  * This program is distributed in the hope it will be useful, but WITHOUT
 413  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 414  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 415  * more details.
 416  *
 417  * You should have received a copy of the GNU General Public License along with
 418  * this program; if not, write to the Free Software Foundation, Inc.,
 419  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 420  *
 421  */
 422
 423 #ifndef _LLD_NAND_
 424 #define _LLD_NAND_
 425
 426 #define MODE_00    0x00000000
 427 #define MODE_01    0x04000000
 428 #define MODE_10    0x08000000
 429 #define MODE_11    0x0C000000
 430
 431
 432 #define DATA_TRANSFER_MODE              0
 433 #define PROTECTION_PER_BLOCK            1
 434 #define LOAD_WAIT_COUNT                 2
 435 #define PROGRAM_WAIT_COUNT              3
 436 #define ERASE_WAIT_COUNT                4
 437 #define INT_MONITOR_CYCLE_COUNT         5
 438 #define READ_BUSY_PIN_ENABLED           6
 439 #define MULTIPLANE_OPERATION_SUPPORT    7
 440 #define PRE_FETCH_MODE                  8
 441 #define CE_DONT_CARE_SUPPORT            9
 442 #define COPYBACK_SUPPORT                10
 443 #define CACHE_WRITE_SUPPORT             11
 444 #define CACHE_READ_SUPPORT              12
 445 #define NUM_PAGES_IN_BLOCK              13
 446 #define ECC_ENABLE_SELECT               14
 447 #define WRITE_ENABLE_2_READ_ENABLE      15
 448 #define ADDRESS_2_DATA                  16
 449 #define READ_ENABLE_2_WRITE_ENABLE      17
 450 #define TWO_ROW_ADDRESS_CYCLES          18
 451 #define MULTIPLANE_ADDRESS_RESTRICT     19
 452 #define ACC_CLOCKS                      20
 453 #define READ_WRITE_ENABLE_LOW_COUNT     21
 454 #define READ_WRITE_ENABLE_HIGH_COUNT    22
 455
 456 #define ECC_SECTOR_SIZE     512
 457
 458 #define DENALI_BUF_SIZE         (NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE)
 459
 460 struct nand_buf {
 461         int head;
 462         int tail;
 463         uint8_t buf[DENALI_BUF_SIZE];
 464         dma_addr_t dma_buf;
 465 };
 466
 467 #define INTEL_CE4100    1
 468 #define INTEL_MRST      2
 469 #define DT              3
 470
 471 struct denali_nand_info {
 472         struct mtd_info mtd;
 473         struct nand_chip nand;
 474         int flash_bank; /* currently selected chip */
 475         int status;
 476         int platform;
 477         struct nand_buf buf;
 478         struct device *dev;
 479         int total_used_banks;
 480         uint32_t block;  /* stored for future use */
 481         uint16_t page;
 482         void __iomem *flash_reg;  /* Mapped io reg base address */
 483         void __iomem *flash_mem;  /* Mapped io reg base address */
 484
 485         /* elements used by ISR */
 486         struct completion complete;
 487         spinlock_t irq_lock;
 488         uint32_t irq_status;
 489         int irq_debug_array[32];
 490         int idx;
 491         int irq;
 492
 493         uint32_t devnum;        /* represent how many nands connected */
 494         uint32_t fwblks; /* represent how many blocks FW used */
 495         uint32_t totalblks;
 496         uint32_t blksperchip;
 497         uint32_t bbtskipbytes;
 498         uint32_t max_banks;
 499 };
 500
 501 extern int denali_init(struct denali_nand_info *denali);
 502 extern void denali_remove(struct denali_nand_info *denali);
 503
 504 #endif /*_LLD_NAND_*/