summaryrefslogtreecommitdiff
path: root/CMSIS/Driver/Include/Driver_NAND.h
blob: a11a1ed66561f09c411f20b0b96ebf37601ca06d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
/* -----------------------------------------------------------------------------
 * Copyright (c) 2013-2014 ARM Ltd.
 *
 * This software is provided 'as-is', without any express or implied warranty.
 * In no event will the authors be held liable for any damages arising from
 * the use of this software. Permission is granted to anyone to use this
 * software for any purpose, including commercial applications, and to alter
 * it and redistribute it freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software in
 *    a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 *
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 *
 * 3. This notice may not be removed or altered from any source distribution.
 *
 *
 * $Date:        30. May 2014
 * $Revision:    V2.01
 *
 * Project:      NAND Flash Driver definitions
 * -------------------------------------------------------------------------- */

/* History:
 *  Version 2.01
 *    Updated ARM_NAND_ECC_INFO structure and ARM_NAND_ECC_xxx definitions
 *  Version 2.00
 *    New simplified driver:
 *      complexity moved to upper layer (command agnostic)
 *    Added support for:
 *      NV-DDR & NV-DDR2 Interface (ONFI specification)
 *      VCC, VCCQ and VPP Power Supply Control
 *      WP (Write Protect) Control
 *  Version 1.11
 *    Changed prefix ARM_DRV -> ARM_DRIVER
 *  Version 1.10
 *    Namespace prefix ARM_ added
 *  Version 1.00
 *    Initial release
 */

#ifndef __DRIVER_NAND_H
#define __DRIVER_NAND_H

#include "Driver_Common.h"

#define ARM_NAND_API_VERSION ARM_DRIVER_VERSION_MAJOR_MINOR(2,01)  /* API version */


/****** NAND Device Power *****/
#define ARM_NAND_POWER_VCC_Pos           0
#define ARM_NAND_POWER_VCC_Msk          (0x07UL << ARM_NAND_POWER_VCC_Pos)
#define ARM_NAND_POWER_VCC_OFF          (0x01UL << ARM_NAND_POWER_VCC_Pos)  ///< VCC Power off
#define ARM_NAND_POWER_VCC_3V3          (0x02UL << ARM_NAND_POWER_VCC_Pos)  ///< VCC = 3.3V
#define ARM_NAND_POWER_VCC_1V8          (0x03UL << ARM_NAND_POWER_VCC_Pos)  ///< VCC = 1.8V
#define ARM_NAND_POWER_VCCQ_Pos          3
#define ARM_NAND_POWER_VCCQ_Msk         (0x07UL << ARM_NAND_POWER_VCCQ_Pos)
#define ARM_NAND_POWER_VCCQ_OFF         (0x01UL << ARM_NAND_POWER_VCCQ_Pos) ///< VCCQ I/O Power off
#define ARM_NAND_POWER_VCCQ_3V3         (0x02UL << ARM_NAND_POWER_VCCQ_Pos) ///< VCCQ = 3.3V
#define ARM_NAND_POWER_VCCQ_1V8         (0x03UL << ARM_NAND_POWER_VCCQ_Pos) ///< VCCQ = 1.8V
#define ARM_NAND_POWER_VPP_OFF          (1UL << 6)                          ///< VPP off
#define ARM_NAND_POWER_VPP_ON           (1Ul << 7)                          ///< VPP on


/****** NAND Control Codes *****/
#define ARM_NAND_BUS_MODE               (0x01)      ///< Set Bus Mode as specified with arg
#define ARM_NAND_BUS_DATA_WIDTH         (0x02)      ///< Set Bus Data Width as specified with arg
#define ARM_NAND_DRIVER_STRENGTH        (0x03)      ///< Set Driver Strength as specified with arg
#define ARM_NAND_DEVICE_READY_EVENT     (0x04)      ///< Generate \ref ARM_NAND_EVENT_DEVICE_READY; arg: 0=disabled (default), 1=enabled 
#define ARM_NAND_DRIVER_READY_EVENT     (0x05)      ///< Generate \ref ARM_NAND_EVENT_DRIVER_READY; arg: 0=disabled (default), 1=enabled 

/*----- NAND Bus Mode (ONFI - Open NAND Flash Interface) -----*/
#define ARM_NAND_BUS_INTERFACE_Pos       4
#define ARM_NAND_BUS_INTERFACE_Msk      (0x03UL << ARM_NAND_BUS_INTERFACE_Pos)
#define ARM_NAND_BUS_SDR                (0x00UL << ARM_NAND_BUS_INTERFACE_Pos)    ///< Data Interface:    SDR  (Single Data Rate) - Traditional interface (default)
#define ARM_NAND_BUS_DDR                (0x01UL << ARM_NAND_BUS_INTERFACE_Pos)    ///< Data Interface: NV-DDR  (Double Data Rate)
#define ARM_NAND_BUS_DDR2               (0x02UL << ARM_NAND_BUS_INTERFACE_Pos)    ///< Data Interface: NV-DDR2 (Double Data Rate)
#define ARM_NAND_BUS_TIMING_MODE_Pos     0
#define ARM_NAND_BUS_TIMING_MODE_Msk    (0x0FUL << ARM_NAND_BUS_TIMING_MODE_Pos)
#define ARM_NAND_BUS_TIMING_MODE_0      (0x00UL << ARM_NAND_BUS_TIMING_MODE_Pos)  ///< Timing Mode 0 (default)
#define ARM_NAND_BUS_TIMING_MODE_1      (0x01UL << ARM_NAND_BUS_TIMING_MODE_Pos)  ///< Timing Mode 1
#define ARM_NAND_BUS_TIMING_MODE_2      (0x02UL << ARM_NAND_BUS_TIMING_MODE_Pos)  ///< Timing Mode 2
#define ARM_NAND_BUS_TIMING_MODE_3      (0x03UL << ARM_NAND_BUS_TIMING_MODE_Pos)  ///< Timing Mode 3
#define ARM_NAND_BUS_TIMING_MODE_4      (0x04UL << ARM_NAND_BUS_TIMING_MODE_Pos)  ///< Timing Mode 4 (SDR EDO capable)
#define ARM_NAND_BUS_TIMING_MODE_5      (0x05UL << ARM_NAND_BUS_TIMING_MODE_Pos)  ///< Timing Mode 5 (SDR EDO capable)
#define ARM_NAND_BUS_TIMING_MODE_6      (0x06UL << ARM_NAND_BUS_TIMING_MODE_Pos)  ///< Timing Mode 6 (NV-DDR2 only)
#define ARM_NAND_BUS_TIMING_MODE_7      (0x07UL << ARM_NAND_BUS_TIMING_MODE_Pos)  ///< Timing Mode 7 (NV-DDR2 only)
#define ARM_NAND_BUS_DDR2_DO_WCYC_Pos    8
#define ARM_NAND_BUS_DDR2_DO_WCYC_Msk   (0x0FUL << ARM_NAND_BUS_DDR2_DO_WCYC_Pos)
#define ARM_NAND_BUS_DDR2_DO_WCYC_0     (0x00UL << ARM_NAND_BUS_DDR2_DO_WCYC_Pos) ///< DDR2 Data Output Warm-up cycles: 0 (default)
#define ARM_NAND_BUS_DDR2_DO_WCYC_1     (0x01UL << ARM_NAND_BUS_DDR2_DO_WCYC_Pos) ///< DDR2 Data Output Warm-up cycles: 1
#define ARM_NAND_BUS_DDR2_DO_WCYC_2     (0x02UL << ARM_NAND_BUS_DDR2_DO_WCYC_Pos) ///< DDR2 Data Output Warm-up cycles: 2
#define ARM_NAND_BUS_DDR2_DO_WCYC_4     (0x03UL << ARM_NAND_BUS_DDR2_DO_WCYC_Pos) ///< DDR2 Data Output Warm-up cycles: 4
#define ARM_NAND_BUS_DDR2_DI_WCYC_Pos    12
#define ARM_NAND_BUS_DDR2_DI_WCYC_Msk   (0x0FUL << ARM_NAND_BUS_DDR2_DI_WCYC_Pos)
#define ARM_NAND_BUS_DDR2_DI_WCYC_0     (0x00UL << ARM_NAND_BUS_DDR2_DI_WCYC_Pos) ///< DDR2 Data Input Warm-up cycles: 0 (default)
#define ARM_NAND_BUS_DDR2_DI_WCYC_1     (0x01UL << ARM_NAND_BUS_DDR2_DI_WCYC_Pos) ///< DDR2 Data Input Warm-up cycles: 1
#define ARM_NAND_BUS_DDR2_DI_WCYC_2     (0x02UL << ARM_NAND_BUS_DDR2_DI_WCYC_Pos) ///< DDR2 Data Input Warm-up cycles: 2
#define ARM_NAND_BUS_DDR2_DI_WCYC_4     (0x03UL << ARM_NAND_BUS_DDR2_DI_WCYC_Pos) ///< DDR2 Data Input Warm-up cycles: 4
#define ARM_NAND_BUS_DDR2_VEN           (1UL << 16)                               ///< DDR2 Enable external VREFQ as reference
#define ARM_NAND_BUS_DDR2_CMPD          (1UL << 17)                               ///< DDR2 Enable complementary DQS (DQS_c) signal
#define ARM_NAND_BUS_DDR2_CMPR          (1UL << 18)                               ///< DDR2 Enable complementary RE_n (RE_c) signal

/*----- NAND Data Bus Width -----*/
#define ARM_NAND_BUS_DATA_WIDTH_8       (0x00)      ///< Bus Data Width:  8 bit (default)
#define ARM_NAND_BUS_DATA_WIDTH_16      (0x01)      ///< Bus Data Width: 16 bit

/*----- NAND Driver Strength (ONFI - Open NAND Flash Interface) -----*/
#define ARM_NAND_DRIVER_STRENGTH_18     (0x00)      ///< Driver Strength 2.0x = 18 Ohms
#define ARM_NAND_DRIVER_STRENGTH_25     (0x01)      ///< Driver Strength 1.4x = 25 Ohms
#define ARM_NAND_DRIVER_STRENGTH_35     (0x02)      ///< Driver Strength 1.0x = 35 Ohms (default)
#define ARM_NAND_DRIVER_STRENGTH_50     (0x03)      ///< Driver Strength 0.7x = 50 Ohms


/****** NAND ECC for Read/Write Data Mode and Sequence Execution Code *****/
#define ARM_NAND_ECC_INDEX_Pos           0
#define ARM_NAND_ECC_INDEX_Msk          (0xFFUL << ARM_NAND_ECC_INDEX_Pos)
#define ARM_NAND_ECC(n)                 ((n) & ARM_NAND_ECC_INDEX_Msk)     ///< Select ECC
#define ARM_NAND_ECC0                   (1UL << 8)                         ///< Use ECC0 of selected ECC
#define ARM_NAND_ECC1                   (1UL << 9)                         ///< Use ECC1 of selected ECC

/****** NAND Flag for Read/Write Data Mode and Sequence Execution Code *****/
#define ARM_NAND_DRIVER_DONE_EVENT      (1UL << 16) ///< Generate \ref ARM_NAND_EVENT_DRIVER_DONE

/****** NAND Sequence Execution Code *****/
#define ARM_NAND_CODE_SEND_CMD1         (1UL << 17) ///< Send Command 1
#define ARM_NAND_CODE_SEND_ADDR_COL1    (1UL << 18) ///< Send Column Address 1
#define ARM_NAND_CODE_SEND_ADDR_COL2    (1UL << 19) ///< Send Column Address 2
#define ARM_NAND_CODE_SEND_ADDR_ROW1    (1UL << 20) ///< Send Row Address 1
#define ARM_NAND_CODE_SEND_ADDR_ROW2    (1UL << 21) ///< Send Row Address 2
#define ARM_NAND_CODE_SEND_ADDR_ROW3    (1UL << 22) ///< Send Row Address 3
#define ARM_NAND_CODE_INC_ADDR_ROW      (1UL << 23) ///< Auto-increment Row Address
#define ARM_NAND_CODE_WRITE_DATA        (1UL << 24) ///< Write Data
#define ARM_NAND_CODE_SEND_CMD2         (1UL << 25) ///< Send Command 2
#define ARM_NAND_CODE_WAIT_BUSY         (1UL << 26) ///< Wait while R/Bn busy
#define ARM_NAND_CODE_READ_DATA         (1UL << 27) ///< Read Data
#define ARM_NAND_CODE_SEND_CMD3         (1UL << 28) ///< Send Command 3
#define ARM_NAND_CODE_READ_STATUS       (1UL << 29) ///< Read Status byte and check FAIL bit (bit 0)

/*----- NAND Sequence Execution Code: Command -----*/
#define ARM_NAND_CODE_CMD1_Pos           0
#define ARM_NAND_CODE_CMD1_Msk          (0xFFUL << ARM_NAND_CODE_CMD1_Pos)
#define ARM_NAND_CODE_CMD2_Pos           8
#define ARM_NAND_CODE_CMD2_Msk          (0xFFUL << ARM_NAND_CODE_CMD2_Pos)
#define ARM_NAND_CODE_CMD3_Pos           16
#define ARM_NAND_CODE_CMD3_Msk          (0xFFUL << ARM_NAND_CODE_CMD3_Pos)

/*----- NAND Sequence Execution Code: Column Address -----*/
#define ARM_NAND_CODE_ADDR_COL1_Pos      0
#define ARM_NAND_CODE_ADDR_COL1_Msk     (0xFFUL << ARM_NAND_CODE_ADDR_COL1_Pos)
#define ARM_NAND_CODE_ADDR_COL2_Pos      8
#define ARM_NAND_CODE_ADDR_COL2_Msk     (0xFFUL << ARM_NAND_CODE_ADDR_COL2_Pos)

/*----- NAND Sequence Execution Code: Row Address -----*/
#define ARM_NAND_CODE_ADDR_ROW1_Pos      0
#define ARM_NAND_CODE_ADDR_ROW1_Msk     (0xFFUL << ARM_NAND_CODE_ADDR_ROW1_Pos)
#define ARM_NAND_CODE_ADDR_ROW2_Pos      8
#define ARM_NAND_CODE_ADDR_ROW2_Msk     (0xFFUL << ARM_NAND_CODE_ADDR_ROW2_Pos)
#define ARM_NAND_CODE_ADDR_ROW3_Pos      16
#define ARM_NAND_CODE_ADDR_ROW3_Msk     (0xFFUL << ARM_NAND_CODE_ADDR_ROW3_Pos)


/****** NAND specific error codes *****/
#define ARM_NAND_ERROR_ECC              (ARM_DRIVER_ERROR_SPECIFIC - 1)     ///< ECC generation/correction failed


/**
\brief NAND ECC (Error Correction Code) Information
*/
typedef struct _ARM_NAND_ECC_INFO {
  uint32_t type             :  2;       ///< Type: 1=ECC0 over Data, 2=ECC0 over Data+Spare, 3=ECC0 over Data and ECC1 over Spare
  uint32_t page_layout      :  1;       ///< Page layout: 0=|Data0|Spare0|...|DataN-1|SpareN-1|, 1=|Data0|...|DataN-1|Spare0|...|SpareN-1|
  uint32_t page_count       :  3;       ///< Number of virtual pages: N = 2 ^ page_count
  uint32_t page_size        :  4;       ///< Virtual Page size (Data+Spare): 0=512+16, 1=1k+32, 2=2k+64, 3=4k+128, 4=8k+256, 8=512+28, 9=1k+56, 10=2k+112, 11=4k+224, 12=8k+448
  uint32_t reserved         : 14;       ///< Reserved (must be zero)
  uint32_t correctable_bits :  8;       ///< Number of correctable bits (based on 512 byte codeword size)
  uint16_t codeword_size [2];           ///< Number of bytes over which ECC is calculated
  uint16_t ecc_size      [2];           ///< ECC size in bytes (rounded up)
  uint16_t ecc_offset    [2];           ///< ECC offset in bytes (where ECC starts in Spare area) 
} ARM_NAND_ECC_INFO;


/**
\brief NAND Status
*/
typedef struct _ARM_NAND_STATUS {
  uint32_t busy      : 1;               ///< Driver busy flag
  uint32_t ecc_error : 1;               ///< ECC error detected (cleared on next Read/WriteData or ExecuteSequence)
} ARM_NAND_STATUS;


/****** NAND Event *****/
#define ARM_NAND_EVENT_DEVICE_READY     (1UL << 0)  ///< Device Ready: R/Bn rising edge
#define ARM_NAND_EVENT_DRIVER_READY     (1UL << 1)  ///< Driver Ready
#define ARM_NAND_EVENT_DRIVER_DONE      (1UL << 2)  ///< Driver operation done
#define ARM_NAND_EVENT_ECC_ERROR        (1UL << 3)  ///< ECC could not correct data


// Function documentation
/**
  \fn            ARM_DRIVER_VERSION ARM_NAND_GetVersion (void)
  \brief         Get driver version.
  \return        \ref ARM_DRIVER_VERSION
*/
/**
  \fn            ARM_NAND_CAPABILITIES ARM_NAND_GetCapabilities (void)
  \brief         Get driver capabilities.
  \return        \ref ARM_NAND_CAPABILITIES
*/
/**
  \fn            int32_t ARM_NAND_Initialize (ARM_NAND_SignalEvent_t cb_event)
  \brief         Initialize the NAND Interface.
  \param[in]     cb_event  Pointer to \ref ARM_NAND_SignalEvent
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_Uninitialize (void)
  \brief         De-initialize the NAND Interface.
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_PowerControl (ARM_POWER_STATE state)
  \brief         Control the NAND interface power.
  \param[in]     state  Power state
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_DevicePower (uint32_t voltage)
  \brief         Set device power supply voltage.
  \param[in]     voltage  NAND Device supply voltage
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_WriteProtect (uint32_t dev_num, bool enable)
  \brief         Control WPn (Write Protect).
  \param[in]     dev_num  Device number
  \param[in]     enable
                - \b false Write Protect off
                - \b true  Write Protect on
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_ChipEnable (uint32_t dev_num, bool enable)
  \brief         Control CEn (Chip Enable).
  \param[in]     dev_num  Device number
  \param[in]     enable
                - \b false Chip Enable off
                - \b true  Chip Enable on
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_GetDeviceBusy (uint32_t dev_num)
  \brief         Get Device Busy pin state.
  \param[in]     dev_num  Device number
  \return        1=busy, 0=not busy, or error
*/
/**
  \fn            int32_t ARM_NAND_SendCommand (uint32_t dev_num, uint8_t cmd)
  \brief         Send command to NAND device.
  \param[in]     dev_num  Device number
  \param[in]     cmd      Command
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_SendAddress (uint32_t dev_num, uint8_t addr)
  \brief         Send address to NAND device.
  \param[in]     dev_num  Device number
  \param[in]     addr     Address
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_ReadData (uint32_t dev_num, void *data, uint32_t cnt, uint32_t mode)
  \brief         Read data from NAND device.
  \param[in]     dev_num  Device number
  \param[out]    data     Pointer to buffer for data to read from NAND device
  \param[in]     cnt      Number of data items to read
  \param[in]     mode     Operation mode
  \return        number of data items read or \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_WriteData (uint32_t dev_num, const void *data, uint32_t cnt, uint32_t mode)
  \brief         Write data to NAND device.
  \param[in]     dev_num  Device number
  \param[out]    data     Pointer to buffer with data to write to NAND device
  \param[in]     cnt      Number of data items to write
  \param[in]     mode     Operation mode
  \return        number of data items written or \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_ExecuteSequence (uint32_t dev_num, uint32_t code, uint32_t cmd,
                                                   uint32_t addr_col, uint32_t addr_row,
                                                   void *data, uint32_t data_cnt,
                                                   uint8_t *status, uint32_t *count)
  \brief         Execute sequence of operations.
  \param[in]     dev_num  Device number
  \param[in]     code     Sequence code
  \param[in]     cmd      Command(s)
  \param[in]     addr_col Column address
  \param[in]     addr_row Row address
  \param[in,out] data     Pointer to data to be written or read 
  \param[in]     data_cnt Number of data items in one iteration
  \param[out]    status   Pointer to status read
  \param[in,out] count    Number of iterations
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_AbortSequence (uint32_t dev_num)
  \brief         Abort sequence execution.
  \param[in]     dev_num  Device number
  \return        \ref execution_status
*/
/**
  \fn            int32_t ARM_NAND_Control (uint32_t dev_num, uint32_t control, uint32_t arg)
  \brief         Control NAND Interface.
  \param[in]     dev_num  Device number
  \param[in]     control  Operation
  \param[in]     arg      Argument of operation
  \return        \ref execution_status
*/
/**
  \fn            ARM_NAND_STATUS ARM_NAND_GetStatus (uint32_t dev_num)
  \brief         Get NAND status.
  \param[in]     dev_num  Device number
  \return        NAND status \ref ARM_NAND_STATUS
*/
/**
  \fn            int32_t ARM_NAND_InquireECC (int32_t index, ARM_NAND_ECC_INFO *info)
  \brief         Inquire about available ECC.
  \param[in]     index   Device number
  \param[out]    info    Pointer to ECC information \ref ARM_NAND_ECC_INFO retrieved
  \return        \ref execution_status
*/

/**
  \fn            void ARM_NAND_SignalEvent (uint32_t dev_num, uint32_t event)
  \brief         Signal NAND event.
  \param[in]     dev_num  Device number
  \param[in]     event    Event notification mask
  \return        none
*/

typedef void (*ARM_NAND_SignalEvent_t) (uint32_t dev_num, uint32_t event);    ///< Pointer to \ref ARM_NAND_SignalEvent : Signal NAND Event.


/**
\brief NAND Driver Capabilities.
*/
typedef struct _ARM_NAND_CAPABILITIES {
  uint32_t event_device_ready  : 1;     ///< Signal Device Ready event (R/Bn rising edge)
  uint32_t reentrant_operation : 1;     ///< Supports re-entrant operation (SendCommand/Address, Read/WriteData)
  uint32_t sequence_operation  : 1;     ///< Supports Sequence operation (ExecuteSequence, AbortSequence)
  uint32_t vcc                 : 1;     ///< Supports VCC Power Supply Control
  uint32_t vcc_1v8             : 1;     ///< Supports 1.8 VCC Power Supply
  uint32_t vccq                : 1;     ///< Supports VCCQ I/O Power Supply Control
  uint32_t vccq_1v8            : 1;     ///< Supports 1.8 VCCQ I/O Power Supply
  uint32_t vpp                 : 1;     ///< Supports VPP High Voltage Power Supply Control
  uint32_t wp                  : 1;     ///< Supports WPn (Write Protect) Control
  uint32_t ce_lines            : 4;     ///< Number of CEn (Chip Enable) lines: ce_lines + 1
  uint32_t ce_manual           : 1;     ///< Supports manual CEn (Chip Enable) Control
  uint32_t rb_monitor          : 1;     ///< Supports R/Bn (Ready/Busy) Monitoring
  uint32_t data_width_16       : 1;     ///< Supports 16-bit data
  uint32_t ddr                 : 1;     ///< Supports NV-DDR  Data Interface (ONFI)
  uint32_t ddr2                : 1;     ///< Supports NV-DDR2 Data Interface (ONFI)
  uint32_t sdr_timing_mode     : 3;     ///< Fastest (highest) SDR     Timing Mode supported (ONFI)
  uint32_t ddr_timing_mode     : 3;     ///< Fastest (highest) NV_DDR  Timing Mode supported (ONFI)
  uint32_t ddr2_timing_mode    : 3;     ///< Fastest (highest) NV_DDR2 Timing Mode supported (ONFI)
  uint32_t driver_strength_18  : 1;     ///< Supports Driver Strength 2.0x = 18 Ohms
  uint32_t driver_strength_25  : 1;     ///< Supports Driver Strength 1.4x = 25 Ohms
  uint32_t driver_strength_50  : 1;     ///< Supports Driver Strength 0.7x = 50 Ohms
} ARM_NAND_CAPABILITIES;


/**
\brief Access structure of the NAND Driver.
*/
typedef struct _ARM_DRIVER_NAND {
  ARM_DRIVER_VERSION    (*GetVersion)     (void);                                                             ///< Pointer to \ref ARM_NAND_GetVersion : Get driver version.
  ARM_NAND_CAPABILITIES (*GetCapabilities)(void);                                                             ///< Pointer to \ref ARM_NAND_GetCapabilities : Get driver capabilities.
  int32_t               (*Initialize)     (ARM_NAND_SignalEvent_t cb_event);                                  ///< Pointer to \ref ARM_NAND_Initialize : Initialize NAND Interface.
  int32_t               (*Uninitialize)   (void);                                                             ///< Pointer to \ref ARM_NAND_Uninitialize : De-initialize NAND Interface.
  int32_t               (*PowerControl)   (ARM_POWER_STATE state);                                            ///< Pointer to \ref ARM_NAND_PowerControl : Control NAND Interface Power.
  int32_t               (*DevicePower)    (uint32_t voltage);                                                 ///< Pointer to \ref ARM_NAND_DevicePower : Set device power supply voltage.
  int32_t               (*WriteProtect)   (uint32_t dev_num, bool enable);                                    ///< Pointer to \ref ARM_NAND_WriteProtect : Control WPn (Write Protect).
  int32_t               (*ChipEnable)     (uint32_t dev_num, bool enable);                                    ///< Pointer to \ref ARM_NAND_ChipEnable : Control CEn (Chip Enable).
  int32_t               (*GetDeviceBusy)  (uint32_t dev_num);                                                 ///< Pointer to \ref ARM_NAND_GetDeviceBusy : Get Device Busy pin state.
  int32_t               (*SendCommand)    (uint32_t dev_num, uint8_t cmd);                                    ///< Pointer to \ref ARM_NAND_SendCommand : Send command to NAND device.
  int32_t               (*SendAddress)    (uint32_t dev_num, uint8_t addr);                                   ///< Pointer to \ref ARM_NAND_SendAddress : Send address to NAND device.
  int32_t               (*ReadData)       (uint32_t dev_num,       void *data, uint32_t cnt, uint32_t mode);  ///< Pointer to \ref ARM_NAND_ReadData : Read data from NAND device.
  int32_t               (*WriteData)      (uint32_t dev_num, const void *data, uint32_t cnt, uint32_t mode);  ///< Pointer to \ref ARM_NAND_WriteData : Write data to NAND device.
  int32_t               (*ExecuteSequence)(uint32_t dev_num, uint32_t code, uint32_t cmd,
                                           uint32_t addr_col, uint32_t addr_row,
                                           void *data, uint32_t data_cnt,
                                           uint8_t *status, uint32_t *count);                                 ///< Pointer to \ref ARM_NAND_ExecuteSequence : Execute sequence of operations.
  int32_t               (*AbortSequence)  (uint32_t dev_num);                                                 ///< Pointer to \ref ARM_NAND_AbortSequence : Abort sequence execution. 
  int32_t               (*Control)        (uint32_t dev_num, uint32_t control, uint32_t arg);                 ///< Pointer to \ref ARM_NAND_Control : Control NAND Interface.
  ARM_NAND_STATUS       (*GetStatus)      (uint32_t dev_num);                                                 ///< Pointer to \ref ARM_NAND_GetStatus : Get NAND status.
  int32_t               (*InquireECC)     ( int32_t index, ARM_NAND_ECC_INFO *info);                          ///< Pointer to \ref ARM_NAND_InquireECC : Inquire about available ECC. 
} const ARM_DRIVER_NAND;

#endif /* __DRIVER_NAND_H */