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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2018 Macronix
4 *
5 * Author: Boris Brezillon <boris.brezillon@bootlin.com>
6 */
7
8#include <linux/device.h>
9#include <linux/kernel.h>
10#include <linux/mtd/spinand.h>
11
12#define SPINAND_MFR_MACRONIX 0xC2
13#define MACRONIX_ECCSR_MASK 0x0F
14
15static SPINAND_OP_VARIANTS(read_cache_variants,
16 SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
17 SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
18 SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
19 SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
20
21static SPINAND_OP_VARIANTS(write_cache_variants,
22 SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
23 SPINAND_PROG_LOAD(true, 0, NULL, 0));
24
25static SPINAND_OP_VARIANTS(update_cache_variants,
26 SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
27 SPINAND_PROG_LOAD(false, 0, NULL, 0));
28
29static int mx35lfxge4ab_ooblayout_ecc(struct mtd_info *mtd, int section,
30 struct mtd_oob_region *region)
31{
32 return -ERANGE;
33}
34
35static int mx35lfxge4ab_ooblayout_free(struct mtd_info *mtd, int section,
36 struct mtd_oob_region *region)
37{
38 if (section)
39 return -ERANGE;
40
41 region->offset = 2;
42 region->length = mtd->oobsize - 2;
43
44 return 0;
45}
46
47static const struct mtd_ooblayout_ops mx35lfxge4ab_ooblayout = {
48 .ecc = mx35lfxge4ab_ooblayout_ecc,
49 .free = mx35lfxge4ab_ooblayout_free,
50};
51
52static int mx35lf1ge4ab_get_eccsr(struct spinand_device *spinand, u8 *eccsr)
53{
54 struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(0x7c, 1),
55 SPI_MEM_OP_NO_ADDR,
56 SPI_MEM_OP_DUMMY(1, 1),
57 SPI_MEM_OP_DATA_IN(1, eccsr, 1));
58
59 int ret = spi_mem_exec_op(spinand->spimem, &op);
60 if (ret)
61 return ret;
62
63 *eccsr &= MACRONIX_ECCSR_MASK;
64 return 0;
65}
66
67static int mx35lf1ge4ab_ecc_get_status(struct spinand_device *spinand,
68 u8 status)
69{
70 struct nand_device *nand = spinand_to_nand(spinand);
71 u8 eccsr;
72
73 switch (status & STATUS_ECC_MASK) {
74 case STATUS_ECC_NO_BITFLIPS:
75 return 0;
76
77 case STATUS_ECC_UNCOR_ERROR:
78 return -EBADMSG;
79
80 case STATUS_ECC_HAS_BITFLIPS:
81 /*
82 * Let's try to retrieve the real maximum number of bitflips
83 * in order to avoid forcing the wear-leveling layer to move
84 * data around if it's not necessary.
85 */
86 if (mx35lf1ge4ab_get_eccsr(spinand, &eccsr))
87 return nand->eccreq.strength;
88
89 if (WARN_ON(eccsr > nand->eccreq.strength || !eccsr))
90 return nand->eccreq.strength;
91
92 return eccsr;
93
94 default:
95 break;
96 }
97
98 return -EINVAL;
99}
100
101static const struct spinand_info macronix_spinand_table[] = {
102 SPINAND_INFO("MX35LF1GE4AB",
103 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x12),
104 NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
105 NAND_ECCREQ(4, 512),
106 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
107 &write_cache_variants,
108 &update_cache_variants),
109 SPINAND_HAS_QE_BIT,
110 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
111 mx35lf1ge4ab_ecc_get_status)),
112 SPINAND_INFO("MX35LF2GE4AB",
113 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x22),
114 NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 1, 1),
115 NAND_ECCREQ(4, 512),
116 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
117 &write_cache_variants,
118 &update_cache_variants),
119 SPINAND_HAS_QE_BIT,
120 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
121};
122
123static const struct spinand_manufacturer_ops macronix_spinand_manuf_ops = {
124};
125
126const struct spinand_manufacturer macronix_spinand_manufacturer = {
127 .id = SPINAND_MFR_MACRONIX,
128 .name = "Macronix",
129 .chips = macronix_spinand_table,
130 .nchips = ARRAY_SIZE(macronix_spinand_table),
131 .ops = ¯onix_spinand_manuf_ops,
132};
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2018 Macronix
4 *
5 * Author: Boris Brezillon <boris.brezillon@bootlin.com>
6 */
7
8#include <linux/device.h>
9#include <linux/kernel.h>
10#include <linux/mtd/spinand.h>
11
12#define SPINAND_MFR_MACRONIX 0xC2
13#define MACRONIX_ECCSR_MASK 0x0F
14
15static SPINAND_OP_VARIANTS(read_cache_variants,
16 SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
17 SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
18 SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
19 SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
20
21static SPINAND_OP_VARIANTS(write_cache_variants,
22 SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
23 SPINAND_PROG_LOAD(true, 0, NULL, 0));
24
25static SPINAND_OP_VARIANTS(update_cache_variants,
26 SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
27 SPINAND_PROG_LOAD(false, 0, NULL, 0));
28
29static int mx35lfxge4ab_ooblayout_ecc(struct mtd_info *mtd, int section,
30 struct mtd_oob_region *region)
31{
32 return -ERANGE;
33}
34
35static int mx35lfxge4ab_ooblayout_free(struct mtd_info *mtd, int section,
36 struct mtd_oob_region *region)
37{
38 if (section)
39 return -ERANGE;
40
41 region->offset = 2;
42 region->length = mtd->oobsize - 2;
43
44 return 0;
45}
46
47static const struct mtd_ooblayout_ops mx35lfxge4ab_ooblayout = {
48 .ecc = mx35lfxge4ab_ooblayout_ecc,
49 .free = mx35lfxge4ab_ooblayout_free,
50};
51
52static int mx35lf1ge4ab_get_eccsr(struct spinand_device *spinand, u8 *eccsr)
53{
54 struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(0x7c, 1),
55 SPI_MEM_OP_NO_ADDR,
56 SPI_MEM_OP_DUMMY(1, 1),
57 SPI_MEM_OP_DATA_IN(1, eccsr, 1));
58
59 int ret = spi_mem_exec_op(spinand->spimem, &op);
60 if (ret)
61 return ret;
62
63 *eccsr &= MACRONIX_ECCSR_MASK;
64 return 0;
65}
66
67static int mx35lf1ge4ab_ecc_get_status(struct spinand_device *spinand,
68 u8 status)
69{
70 struct nand_device *nand = spinand_to_nand(spinand);
71 u8 eccsr;
72
73 switch (status & STATUS_ECC_MASK) {
74 case STATUS_ECC_NO_BITFLIPS:
75 return 0;
76
77 case STATUS_ECC_UNCOR_ERROR:
78 return -EBADMSG;
79
80 case STATUS_ECC_HAS_BITFLIPS:
81 /*
82 * Let's try to retrieve the real maximum number of bitflips
83 * in order to avoid forcing the wear-leveling layer to move
84 * data around if it's not necessary.
85 */
86 if (mx35lf1ge4ab_get_eccsr(spinand, &eccsr))
87 return nanddev_get_ecc_conf(nand)->strength;
88
89 if (WARN_ON(eccsr > nanddev_get_ecc_conf(nand)->strength ||
90 !eccsr))
91 return nanddev_get_ecc_conf(nand)->strength;
92
93 return eccsr;
94
95 default:
96 break;
97 }
98
99 return -EINVAL;
100}
101
102static const struct spinand_info macronix_spinand_table[] = {
103 SPINAND_INFO("MX35LF1GE4AB",
104 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x12),
105 NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
106 NAND_ECCREQ(4, 512),
107 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
108 &write_cache_variants,
109 &update_cache_variants),
110 SPINAND_HAS_QE_BIT,
111 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
112 mx35lf1ge4ab_ecc_get_status)),
113 SPINAND_INFO("MX35LF2GE4AB",
114 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x22),
115 NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 1, 1),
116 NAND_ECCREQ(4, 512),
117 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
118 &write_cache_variants,
119 &update_cache_variants),
120 SPINAND_HAS_QE_BIT,
121 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
122 SPINAND_INFO("MX35LF2GE4AD",
123 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x26),
124 NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
125 NAND_ECCREQ(8, 512),
126 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
127 &write_cache_variants,
128 &update_cache_variants),
129 0,
130 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
131 mx35lf1ge4ab_ecc_get_status)),
132 SPINAND_INFO("MX35LF4GE4AD",
133 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x37),
134 NAND_MEMORG(1, 4096, 128, 64, 2048, 40, 1, 1, 1),
135 NAND_ECCREQ(8, 512),
136 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
137 &write_cache_variants,
138 &update_cache_variants),
139 0,
140 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
141 mx35lf1ge4ab_ecc_get_status)),
142 SPINAND_INFO("MX35LF1G24AD",
143 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x14),
144 NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
145 NAND_ECCREQ(8, 512),
146 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
147 &write_cache_variants,
148 &update_cache_variants),
149 0,
150 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
151 SPINAND_INFO("MX35LF2G24AD",
152 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x24),
153 NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
154 NAND_ECCREQ(8, 512),
155 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
156 &write_cache_variants,
157 &update_cache_variants),
158 0,
159 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
160 SPINAND_INFO("MX35LF4G24AD",
161 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x35),
162 NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 2, 1, 1),
163 NAND_ECCREQ(8, 512),
164 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
165 &write_cache_variants,
166 &update_cache_variants),
167 0,
168 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, NULL)),
169 SPINAND_INFO("MX31LF1GE4BC",
170 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x1e),
171 NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
172 NAND_ECCREQ(8, 512),
173 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
174 &write_cache_variants,
175 &update_cache_variants),
176 0 /*SPINAND_HAS_QE_BIT*/,
177 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
178 mx35lf1ge4ab_ecc_get_status)),
179 SPINAND_INFO("MX31UF1GE4BC",
180 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x9e),
181 NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
182 NAND_ECCREQ(8, 512),
183 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
184 &write_cache_variants,
185 &update_cache_variants),
186 0 /*SPINAND_HAS_QE_BIT*/,
187 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
188 mx35lf1ge4ab_ecc_get_status)),
189
190 SPINAND_INFO("MX35LF2G14AC",
191 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x20),
192 NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 1, 1),
193 NAND_ECCREQ(4, 512),
194 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
195 &write_cache_variants,
196 &update_cache_variants),
197 SPINAND_HAS_QE_BIT,
198 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
199 mx35lf1ge4ab_ecc_get_status)),
200 SPINAND_INFO("MX35UF4G24AD",
201 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xb5),
202 NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 2, 1, 1),
203 NAND_ECCREQ(8, 512),
204 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
205 &write_cache_variants,
206 &update_cache_variants),
207 SPINAND_HAS_QE_BIT,
208 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
209 mx35lf1ge4ab_ecc_get_status)),
210 SPINAND_INFO("MX35UF4GE4AD",
211 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xb7),
212 NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
213 NAND_ECCREQ(8, 512),
214 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
215 &write_cache_variants,
216 &update_cache_variants),
217 SPINAND_HAS_QE_BIT,
218 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
219 mx35lf1ge4ab_ecc_get_status)),
220 SPINAND_INFO("MX35UF2G14AC",
221 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa0),
222 NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 1, 1),
223 NAND_ECCREQ(4, 512),
224 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
225 &write_cache_variants,
226 &update_cache_variants),
227 SPINAND_HAS_QE_BIT,
228 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
229 mx35lf1ge4ab_ecc_get_status)),
230 SPINAND_INFO("MX35UF2G24AD",
231 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa4),
232 NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 1, 1),
233 NAND_ECCREQ(8, 512),
234 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
235 &write_cache_variants,
236 &update_cache_variants),
237 SPINAND_HAS_QE_BIT,
238 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
239 mx35lf1ge4ab_ecc_get_status)),
240 SPINAND_INFO("MX35UF2GE4AD",
241 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa6),
242 NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
243 NAND_ECCREQ(8, 512),
244 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
245 &write_cache_variants,
246 &update_cache_variants),
247 SPINAND_HAS_QE_BIT,
248 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
249 mx35lf1ge4ab_ecc_get_status)),
250 SPINAND_INFO("MX35UF2GE4AC",
251 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa2),
252 NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
253 NAND_ECCREQ(4, 512),
254 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
255 &write_cache_variants,
256 &update_cache_variants),
257 SPINAND_HAS_QE_BIT,
258 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
259 mx35lf1ge4ab_ecc_get_status)),
260 SPINAND_INFO("MX35UF1G14AC",
261 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x90),
262 NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
263 NAND_ECCREQ(4, 512),
264 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
265 &write_cache_variants,
266 &update_cache_variants),
267 SPINAND_HAS_QE_BIT,
268 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
269 mx35lf1ge4ab_ecc_get_status)),
270 SPINAND_INFO("MX35UF1G24AD",
271 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x94),
272 NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
273 NAND_ECCREQ(8, 512),
274 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
275 &write_cache_variants,
276 &update_cache_variants),
277 SPINAND_HAS_QE_BIT,
278 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
279 mx35lf1ge4ab_ecc_get_status)),
280 SPINAND_INFO("MX35UF1GE4AD",
281 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x96),
282 NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
283 NAND_ECCREQ(8, 512),
284 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
285 &write_cache_variants,
286 &update_cache_variants),
287 SPINAND_HAS_QE_BIT,
288 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
289 mx35lf1ge4ab_ecc_get_status)),
290 SPINAND_INFO("MX35UF1GE4AC",
291 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x92),
292 NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
293 NAND_ECCREQ(4, 512),
294 SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
295 &write_cache_variants,
296 &update_cache_variants),
297 SPINAND_HAS_QE_BIT,
298 SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout,
299 mx35lf1ge4ab_ecc_get_status)),
300
301};
302
303static const struct spinand_manufacturer_ops macronix_spinand_manuf_ops = {
304};
305
306const struct spinand_manufacturer macronix_spinand_manufacturer = {
307 .id = SPINAND_MFR_MACRONIX,
308 .name = "Macronix",
309 .chips = macronix_spinand_table,
310 .nchips = ARRAY_SIZE(macronix_spinand_table),
311 .ops = ¯onix_spinand_manuf_ops,
312};