1 /* SPDX-License-Identifier: GPL-2.0 */
3 * NAND Flash Controller Device Driver
4 * Copyright (c) 2009 - 2010, Intel Corporation and its suppliers.
10 #include <linux/bitops.h>
11 #include <linux/completion.h>
12 #include <linux/mtd/rawnand.h>
13 #include <linux/spinlock_types.h>
14 #include <linux/types.h>
16 #define DEVICE_RESET 0x0
17 #define DEVICE_RESET__BANK(bank) BIT(bank)
19 #define TRANSFER_SPARE_REG 0x10
20 #define TRANSFER_SPARE_REG__FLAG BIT(0)
22 #define LOAD_WAIT_CNT 0x20
23 #define LOAD_WAIT_CNT__VALUE GENMASK(15, 0)
25 #define PROGRAM_WAIT_CNT 0x30
26 #define PROGRAM_WAIT_CNT__VALUE GENMASK(15, 0)
28 #define ERASE_WAIT_CNT 0x40
29 #define ERASE_WAIT_CNT__VALUE GENMASK(15, 0)
31 #define INT_MON_CYCCNT 0x50
32 #define INT_MON_CYCCNT__VALUE GENMASK(15, 0)
34 #define RB_PIN_ENABLED 0x60
35 #define RB_PIN_ENABLED__BANK(bank) BIT(bank)
37 #define MULTIPLANE_OPERATION 0x70
38 #define MULTIPLANE_OPERATION__FLAG BIT(0)
40 #define MULTIPLANE_READ_ENABLE 0x80
41 #define MULTIPLANE_READ_ENABLE__FLAG BIT(0)
43 #define COPYBACK_DISABLE 0x90
44 #define COPYBACK_DISABLE__FLAG BIT(0)
46 #define CACHE_WRITE_ENABLE 0xa0
47 #define CACHE_WRITE_ENABLE__FLAG BIT(0)
49 #define CACHE_READ_ENABLE 0xb0
50 #define CACHE_READ_ENABLE__FLAG BIT(0)
52 #define PREFETCH_MODE 0xc0
53 #define PREFETCH_MODE__PREFETCH_EN BIT(0)
54 #define PREFETCH_MODE__PREFETCH_BURST_LENGTH GENMASK(15, 4)
56 #define CHIP_ENABLE_DONT_CARE 0xd0
57 #define CHIP_EN_DONT_CARE__FLAG BIT(0)
59 #define ECC_ENABLE 0xe0
60 #define ECC_ENABLE__FLAG BIT(0)
62 #define GLOBAL_INT_ENABLE 0xf0
63 #define GLOBAL_INT_EN_FLAG BIT(0)
65 #define TWHR2_AND_WE_2_RE 0x100
66 #define TWHR2_AND_WE_2_RE__WE_2_RE GENMASK(5, 0)
67 #define TWHR2_AND_WE_2_RE__TWHR2 GENMASK(13, 8)
69 #define TCWAW_AND_ADDR_2_DATA 0x110
70 /* The width of ADDR_2_DATA is 6 bit for old IP, 7 bit for new IP */
71 #define TCWAW_AND_ADDR_2_DATA__ADDR_2_DATA GENMASK(6, 0)
72 #define TCWAW_AND_ADDR_2_DATA__TCWAW GENMASK(13, 8)
75 #define RE_2_WE__VALUE GENMASK(5, 0)
77 #define ACC_CLKS 0x130
78 #define ACC_CLKS__VALUE GENMASK(3, 0)
80 #define NUMBER_OF_PLANES 0x140
81 #define NUMBER_OF_PLANES__VALUE GENMASK(2, 0)
83 #define PAGES_PER_BLOCK 0x150
84 #define PAGES_PER_BLOCK__VALUE GENMASK(15, 0)
86 #define DEVICE_WIDTH 0x160
87 #define DEVICE_WIDTH__VALUE GENMASK(1, 0)
89 #define DEVICE_MAIN_AREA_SIZE 0x170
90 #define DEVICE_MAIN_AREA_SIZE__VALUE GENMASK(15, 0)
92 #define DEVICE_SPARE_AREA_SIZE 0x180
93 #define DEVICE_SPARE_AREA_SIZE__VALUE GENMASK(15, 0)
95 #define TWO_ROW_ADDR_CYCLES 0x190
96 #define TWO_ROW_ADDR_CYCLES__FLAG BIT(0)
98 #define MULTIPLANE_ADDR_RESTRICT 0x1a0
99 #define MULTIPLANE_ADDR_RESTRICT__FLAG BIT(0)
101 #define ECC_CORRECTION 0x1b0
102 #define ECC_CORRECTION__VALUE GENMASK(4, 0)
103 #define ECC_CORRECTION__ERASE_THRESHOLD GENMASK(31, 16)
105 #define READ_MODE 0x1c0
106 #define READ_MODE__VALUE GENMASK(3, 0)
108 #define WRITE_MODE 0x1d0
109 #define WRITE_MODE__VALUE GENMASK(3, 0)
111 #define COPYBACK_MODE 0x1e0
112 #define COPYBACK_MODE__VALUE GENMASK(3, 0)
114 #define RDWR_EN_LO_CNT 0x1f0
115 #define RDWR_EN_LO_CNT__VALUE GENMASK(4, 0)
117 #define RDWR_EN_HI_CNT 0x200
118 #define RDWR_EN_HI_CNT__VALUE GENMASK(4, 0)
120 #define MAX_RD_DELAY 0x210
121 #define MAX_RD_DELAY__VALUE GENMASK(3, 0)
123 #define CS_SETUP_CNT 0x220
124 #define CS_SETUP_CNT__VALUE GENMASK(4, 0)
125 #define CS_SETUP_CNT__TWB GENMASK(17, 12)
127 #define SPARE_AREA_SKIP_BYTES 0x230
128 #define SPARE_AREA_SKIP_BYTES__VALUE GENMASK(5, 0)
130 #define SPARE_AREA_MARKER 0x240
131 #define SPARE_AREA_MARKER__VALUE GENMASK(15, 0)
133 #define DEVICES_CONNECTED 0x250
134 #define DEVICES_CONNECTED__VALUE GENMASK(2, 0)
136 #define DIE_MASK 0x260
137 #define DIE_MASK__VALUE GENMASK(7, 0)
139 #define FIRST_BLOCK_OF_NEXT_PLANE 0x270
140 #define FIRST_BLOCK_OF_NEXT_PLANE__VALUE GENMASK(15, 0)
142 #define WRITE_PROTECT 0x280
143 #define WRITE_PROTECT__FLAG BIT(0)
145 #define RE_2_RE 0x290
146 #define RE_2_RE__VALUE GENMASK(5, 0)
148 #define MANUFACTURER_ID 0x300
149 #define MANUFACTURER_ID__VALUE GENMASK(7, 0)
151 #define DEVICE_ID 0x310
152 #define DEVICE_ID__VALUE GENMASK(7, 0)
154 #define DEVICE_PARAM_0 0x320
155 #define DEVICE_PARAM_0__VALUE GENMASK(7, 0)
157 #define DEVICE_PARAM_1 0x330
158 #define DEVICE_PARAM_1__VALUE GENMASK(7, 0)
160 #define DEVICE_PARAM_2 0x340
161 #define DEVICE_PARAM_2__VALUE GENMASK(7, 0)
163 #define LOGICAL_PAGE_DATA_SIZE 0x350
164 #define LOGICAL_PAGE_DATA_SIZE__VALUE GENMASK(15, 0)
166 #define LOGICAL_PAGE_SPARE_SIZE 0x360
167 #define LOGICAL_PAGE_SPARE_SIZE__VALUE GENMASK(15, 0)
169 #define REVISION 0x370
170 #define REVISION__VALUE GENMASK(15, 0)
172 #define ONFI_DEVICE_FEATURES 0x380
173 #define ONFI_DEVICE_FEATURES__VALUE GENMASK(5, 0)
175 #define ONFI_OPTIONAL_COMMANDS 0x390
176 #define ONFI_OPTIONAL_COMMANDS__VALUE GENMASK(5, 0)
178 #define ONFI_TIMING_MODE 0x3a0
179 #define ONFI_TIMING_MODE__VALUE GENMASK(5, 0)
181 #define ONFI_PGM_CACHE_TIMING_MODE 0x3b0
182 #define ONFI_PGM_CACHE_TIMING_MODE__VALUE GENMASK(5, 0)
184 #define ONFI_DEVICE_NO_OF_LUNS 0x3c0
185 #define ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS GENMASK(7, 0)
186 #define ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE BIT(8)
188 #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L 0x3d0
189 #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L__VALUE GENMASK(15, 0)
191 #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U 0x3e0
192 #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U__VALUE GENMASK(15, 0)
194 #define FEATURES 0x3f0
195 #define FEATURES__N_BANKS GENMASK(1, 0)
196 #define FEATURES__ECC_MAX_ERR GENMASK(5, 2)
197 #define FEATURES__DMA BIT(6)
198 #define FEATURES__CMD_DMA BIT(7)
199 #define FEATURES__PARTITION BIT(8)
200 #define FEATURES__XDMA_SIDEBAND BIT(9)
201 #define FEATURES__GPREG BIT(10)
202 #define FEATURES__INDEX_ADDR BIT(11)
204 #define TRANSFER_MODE 0x400
205 #define TRANSFER_MODE__VALUE GENMASK(1, 0)
207 #define INTR_STATUS(bank) (0x410 + (bank) * 0x50)
208 #define INTR_EN(bank) (0x420 + (bank) * 0x50)
209 /* bit[1:0] is used differently depending on IP version */
210 #define INTR__ECC_UNCOR_ERR BIT(0) /* new IP */
211 #define INTR__ECC_TRANSACTION_DONE BIT(0) /* old IP */
212 #define INTR__ECC_ERR BIT(1) /* old IP */
213 #define INTR__DMA_CMD_COMP BIT(2)
214 #define INTR__TIME_OUT BIT(3)
215 #define INTR__PROGRAM_FAIL BIT(4)
216 #define INTR__ERASE_FAIL BIT(5)
217 #define INTR__LOAD_COMP BIT(6)
218 #define INTR__PROGRAM_COMP BIT(7)
219 #define INTR__ERASE_COMP BIT(8)
220 #define INTR__PIPE_CPYBCK_CMD_COMP BIT(9)
221 #define INTR__LOCKED_BLK BIT(10)
222 #define INTR__UNSUP_CMD BIT(11)
223 #define INTR__INT_ACT BIT(12)
224 #define INTR__RST_COMP BIT(13)
225 #define INTR__PIPE_CMD_ERR BIT(14)
226 #define INTR__PAGE_XFER_INC BIT(15)
227 #define INTR__ERASED_PAGE BIT(16)
229 #define PAGE_CNT(bank) (0x430 + (bank) * 0x50)
230 #define ERR_PAGE_ADDR(bank) (0x440 + (bank) * 0x50)
231 #define ERR_BLOCK_ADDR(bank) (0x450 + (bank) * 0x50)
233 #define ECC_THRESHOLD 0x600
234 #define ECC_THRESHOLD__VALUE GENMASK(9, 0)
236 #define ECC_ERROR_BLOCK_ADDRESS 0x610
237 #define ECC_ERROR_BLOCK_ADDRESS__VALUE GENMASK(15, 0)
239 #define ECC_ERROR_PAGE_ADDRESS 0x620
240 #define ECC_ERROR_PAGE_ADDRESS__VALUE GENMASK(11, 0)
241 #define ECC_ERROR_PAGE_ADDRESS__BANK GENMASK(15, 12)
243 #define ECC_ERROR_ADDRESS 0x630
244 #define ECC_ERROR_ADDRESS__OFFSET GENMASK(11, 0)
245 #define ECC_ERROR_ADDRESS__SECTOR GENMASK(15, 12)
247 #define ERR_CORRECTION_INFO 0x640
248 #define ERR_CORRECTION_INFO__BYTE GENMASK(7, 0)
249 #define ERR_CORRECTION_INFO__DEVICE GENMASK(11, 8)
250 #define ERR_CORRECTION_INFO__UNCOR BIT(14)
251 #define ERR_CORRECTION_INFO__LAST_ERR BIT(15)
253 #define ECC_COR_INFO(bank) (0x650 + (bank) / 2 * 0x10)
254 #define ECC_COR_INFO__SHIFT(bank) ((bank) % 2 * 8)
255 #define ECC_COR_INFO__MAX_ERRORS GENMASK(6, 0)
256 #define ECC_COR_INFO__UNCOR_ERR BIT(7)
258 #define CFG_DATA_BLOCK_SIZE 0x6b0
260 #define CFG_LAST_DATA_BLOCK_SIZE 0x6c0
262 #define CFG_NUM_DATA_BLOCKS 0x6d0
264 #define CFG_META_DATA_SIZE 0x6e0
266 #define DMA_ENABLE 0x700
267 #define DMA_ENABLE__FLAG BIT(0)
269 #define IGNORE_ECC_DONE 0x710
270 #define IGNORE_ECC_DONE__FLAG BIT(0)
272 #define DMA_INTR 0x720
273 #define DMA_INTR_EN 0x730
274 #define DMA_INTR__TARGET_ERROR BIT(0)
275 #define DMA_INTR__DESC_COMP_CHANNEL0 BIT(1)
276 #define DMA_INTR__DESC_COMP_CHANNEL1 BIT(2)
277 #define DMA_INTR__DESC_COMP_CHANNEL2 BIT(3)
278 #define DMA_INTR__DESC_COMP_CHANNEL3 BIT(4)
279 #define DMA_INTR__MEMCOPY_DESC_COMP BIT(5)
281 #define TARGET_ERR_ADDR_LO 0x740
282 #define TARGET_ERR_ADDR_LO__VALUE GENMASK(15, 0)
284 #define TARGET_ERR_ADDR_HI 0x750
285 #define TARGET_ERR_ADDR_HI__VALUE GENMASK(15, 0)
287 #define CHNL_ACTIVE 0x760
288 #define CHNL_ACTIVE__CHANNEL0 BIT(0)
289 #define CHNL_ACTIVE__CHANNEL1 BIT(1)
290 #define CHNL_ACTIVE__CHANNEL2 BIT(2)
291 #define CHNL_ACTIVE__CHANNEL3 BIT(3)
293 struct denali_nand_info {
294 struct nand_chip nand;
295 unsigned long clk_rate; /* core clock rate */
296 unsigned long clk_x_rate; /* bus interface clock rate */
297 int active_bank; /* currently selected bank */
299 void __iomem *reg; /* Register Interface */
300 void __iomem *host; /* Host Data/Command Interface */
301 struct completion complete;
302 spinlock_t irq_lock; /* protect irq_mask and irq_status */
303 u32 irq_mask; /* interrupts we are waiting for */
304 u32 irq_status; /* interrupts that have happened */
306 void *buf; /* for syndrome layout conversion */
308 int dma_avail; /* can support DMA? */
309 int devs_per_cs; /* devices connected in parallel */
310 int oob_skip_bytes; /* number of bytes reserved for BBM */
312 unsigned int revision; /* IP revision */
313 unsigned int caps; /* IP capability (or quirk) */
314 const struct nand_ecc_caps *ecc_caps;
315 u32 (*host_read)(struct denali_nand_info *denali, u32 addr);
316 void (*host_write)(struct denali_nand_info *denali, u32 addr, u32 data);
317 void (*setup_dma)(struct denali_nand_info *denali, dma_addr_t dma_addr,
318 int page, int write);
321 #define DENALI_CAP_HW_ECC_FIXUP BIT(0)
322 #define DENALI_CAP_DMA_64BIT BIT(1)
324 int denali_calc_ecc_bytes(int step_size, int strength);
325 int denali_init(struct denali_nand_info *denali);
326 void denali_remove(struct denali_nand_info *denali);
328 #endif /* __DENALI_H__ */