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
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020-2021 Rockchip Electronics Co., Ltd.
*
* Author: Dingqiang Lin <jon.lin@rock-chips.com>
*/
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/mtd/spinand.h>
#define FM25G01B_STATUS_ECC_MASK (7 << 4)
#define FM25G01B_STATUS_ECC_NO_BITFLIPS (0 << 4)
#define FM25G01B_STATUS_ECC_1_3_BITFLIPS (1 << 4)
#define FM25G01B_STATUS_ECC_4_BITFLIPS (2 << 4)
#define FM25G01B_STATUS_ECC_5_BITFLIPS (3 << 4)
#define FM25G01B_STATUS_ECC_6_BITFLIPS (4 << 4)
#define FM25G01B_STATUS_ECC_7_BITFLIPS (5 << 4)
#define FM25G01B_STATUS_ECC_8_BITFLIPS (6 << 4)
#define FM25G01B_STATUS_ECC_UNCOR_ERROR (7 << 4)
#define FM25S01BI3_STATUS_ECC_MASK (7 << 4)
#define FM25S01BI3_STATUS_ECC_NO_BITFLIPS (0 << 4)
#define FM25S01BI3_STATUS_ECC_1_3_BITFLIPS (1 << 4)
#define FM25S01BI3_STATUS_ECC_UNCOR_ERROR (2 << 4)
#define FM25S01BI3_STATUS_ECC_4_6_BITFLIPS (3 << 4)
#define FM25S01BI3_STATUS_ECC_7_8_BITFLIPS (5 << 4)
#define SPINAND_MFR_FMSH 0xA1
static SPINAND_OP_VARIANTS(read_cache_variants,
SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(0, 2, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_4S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_2S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_FAST_1S_1S_1S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_1S_OP(0, 1, NULL, 0, 0));
static SPINAND_OP_VARIANTS(write_cache_variants,
SPINAND_PROG_LOAD_1S_1S_4S_OP(true, 0, NULL, 0),
SPINAND_PROG_LOAD_1S_1S_1S_OP(true, 0, NULL, 0));
static SPINAND_OP_VARIANTS(update_cache_variants,
SPINAND_PROG_LOAD_1S_1S_4S_OP(false, 0, NULL, 0),
SPINAND_PROG_LOAD_1S_1S_1S_OP(false, 0, NULL, 0));
static SPINAND_OP_VARIANTS(fm25g_read_cache_variants,
SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_4S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_2S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_FAST_1S_1S_1S_OP(0, 1, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_1S_OP(0, 1, NULL, 0, 0));
static int fm25g01b_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
region->offset = 64;
region->length = 64;
return 0;
}
static int fm25g01b_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
/* reserve 2 bytes for the BBM */
region->offset = 2;
region->length = 62;
return 0;
}
static int fm25g01b_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
switch (status & FM25G01B_STATUS_ECC_MASK) {
case FM25G01B_STATUS_ECC_NO_BITFLIPS:
return 0;
case FM25G01B_STATUS_ECC_1_3_BITFLIPS:
return 3;
case FM25G01B_STATUS_ECC_4_BITFLIPS:
return 4;
case FM25G01B_STATUS_ECC_5_BITFLIPS:
return 5;
case FM25G01B_STATUS_ECC_6_BITFLIPS:
return 6;
case FM25G01B_STATUS_ECC_7_BITFLIPS:
return 7;
case FM25G01B_STATUS_ECC_8_BITFLIPS:
return 8;
case FM25G01B_STATUS_ECC_UNCOR_ERROR:
return -EBADMSG;
default:
break;
}
return -EINVAL;
}
static int fm25s01a_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
return -ERANGE;
}
static int fm25s01a_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
region->offset = 2;
region->length = 62;
return 0;
}
static int fm25s01bi3_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
switch (status & FM25S01BI3_STATUS_ECC_MASK) {
case FM25S01BI3_STATUS_ECC_NO_BITFLIPS:
return 0;
case FM25S01BI3_STATUS_ECC_UNCOR_ERROR:
return -EBADMSG;
case FM25S01BI3_STATUS_ECC_1_3_BITFLIPS:
return 3;
case FM25S01BI3_STATUS_ECC_4_6_BITFLIPS:
return 6;
case FM25S01BI3_STATUS_ECC_7_8_BITFLIPS:
return 8;
default:
break;
}
return -EINVAL;
}
static int fm25s01bi3_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
region->offset = 64;
region->length = 64;
return 0;
}
static int fm25s01bi3_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section > 3)
return -ERANGE;
region->offset = (16 * section) + 4;
region->length = 12;
return 0;
}
static const struct mtd_ooblayout_ops fm25g01b_ooblayout = {
.ecc = fm25g01b_ooblayout_ecc,
.free = fm25g01b_ooblayout_free,
};
static const struct mtd_ooblayout_ops fm25s01a_ooblayout = {
.ecc = fm25s01a_ooblayout_ecc,
.free = fm25s01a_ooblayout_free,
};
static const struct mtd_ooblayout_ops fm25s01bi3_ooblayout = {
.ecc = fm25s01bi3_ooblayout_ecc,
.free = fm25s01bi3_ooblayout_free,
};
static const struct spinand_info fmsh_spinand_table[] = {
SPINAND_INFO("FM25G01B",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xd1),
NAND_MEMORG(1, 2048, 128, 64, 1024, 21, 1, 1, 1),
NAND_ECCREQ(8, 528),
SPINAND_INFO_OP_VARIANTS(&fm25g_read_cache_variants,
&write_cache_variants,
&update_cache_variants),
SPINAND_HAS_QE_BIT,
SPINAND_ECCINFO(&fm25g01b_ooblayout,
fm25g01b_ecc_get_status)),
SPINAND_INFO("FM25G02B",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xd2),
NAND_MEMORG(1, 2048, 128, 64, 2048, 41, 1, 1, 1),
NAND_ECCREQ(8, 528),
SPINAND_INFO_OP_VARIANTS(&fm25g_read_cache_variants,
&write_cache_variants,
&update_cache_variants),
SPINAND_HAS_QE_BIT,
SPINAND_ECCINFO(&fm25g01b_ooblayout,
fm25g01b_ecc_get_status)),
SPINAND_INFO("FM25S01A",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xE4),
NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
NAND_ECCREQ(1, 512),
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
&write_cache_variants,
&update_cache_variants),
0,
SPINAND_ECCINFO(&fm25s01a_ooblayout, NULL)),
SPINAND_INFO("FM25S01BI3",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xd4),
NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
NAND_ECCREQ(8, 512),
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
&write_cache_variants,
&update_cache_variants),
SPINAND_HAS_QE_BIT,
SPINAND_ECCINFO(&fm25s01bi3_ooblayout,
fm25s01bi3_ecc_get_status)),
};
static const struct spinand_manufacturer_ops fmsh_spinand_manuf_ops = {
};
const struct spinand_manufacturer fmsh_spinand_manufacturer = {
.id = SPINAND_MFR_FMSH,
.name = "Fudan Micro",
.chips = fmsh_spinand_table,
.nchips = ARRAY_SIZE(fmsh_spinand_table),
.ops = &fmsh_spinand_manuf_ops,
};
|
