1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2
3 #include <commonlib/helpers.h>
4 #include <spi_flash.h>
5 #include <spi-generic.h>
6
7 #include "spi_flash_internal.h"
8
9 /* M25Pxx-specific commands */
10 #define CMD_M25PXX_WREN 0x06 /* Write Enable */
11 #define CMD_M25PXX_WRDI 0x04 /* Write Disable */
12 #define CMD_M25PXX_RDSR 0x05 /* Read Status Register */
13 #define CMD_M25PXX_WRSR 0x01 /* Write Status Register */
14 #define CMD_M25PXX_READ 0x03 /* Read Data Bytes */
15 #define CMD_M25PXX_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */
16 #define CMD_M25PXX_PP 0x02 /* Page Program */
17 #define CMD_M25PXX_SSE 0x20 /* Subsector Erase */
18 #define CMD_M25PXX_SE 0xd8 /* Sector Erase */
19 #define CMD_M25PXX_BE 0xc7 /* Bulk Erase */
20 #define CMD_M25PXX_DP 0xb9 /* Deep Power-down */
21 #define CMD_M25PXX_RES 0xab /* Release from DP, and Read Signature */
22
23 /*
24 * Device ID = (memory_type << 8) + memory_capacity
25 */
26 #define STM_ID_M25P10 0x2011
27 #define STM_ID_M25P20 0x2012
28 #define STM_ID_M25P40 0x2013
29 #define STM_ID_M25P80 0x2014
30 #define STM_ID_M25P16 0x2015
31 #define STM_ID_M25P32 0x2016
32 #define STM_ID_M25P64 0x2017
33 #define STM_ID_M25P128 0x2018
34 #define STM_ID_M25PX80 0x7114
35 #define STM_ID_M25PX16 0x7115
36 #define STM_ID_M25PX32 0x7116
37 #define STM_ID_M25PX64 0x7117
38 #define STM_ID_M25PE80 0x8014
39 #define STM_ID_M25PE16 0x8015
40 #define STM_ID_M25PE32 0x8016
41 #define STM_ID_M25PE64 0x8017
42 #define STM_ID_N25Q016__3E 0xba15
43 #define STM_ID_N25Q032__3E 0xba16
44 #define STM_ID_N25Q064__3E 0xba17
45 #define STM_ID_N25Q128__3E 0xba18
46 #define STM_ID_N25Q256__3E 0xba19
47 #define STM_ID_N25Q016__1E 0xbb15
48 #define STM_ID_N25Q032__1E 0xbb16
49 #define STM_ID_N25Q064__1E 0xbb17
50 #define STM_ID_N25Q128__1E 0xbb18
51 #define STM_ID_N25Q256__1E 0xbb19
52
53 static const struct spi_flash_part_id flash_table_se32k[] = {
54 {
55 /* M25P10 */
56 .id[0] = STM_ID_M25P10,
57 .nr_sectors_shift = 2,
58 },
59 };
60
61 static const struct spi_flash_part_id flash_table_se64k[] = {
62 {
63 /* M25P16 */
64 .id[0] = STM_ID_M25P16,
65 .nr_sectors_shift = 5,
66 },
67 {
68 /* M25P20 */
69 .id[0] = STM_ID_M25P20,
70 .nr_sectors_shift = 2,
71 },
72 {
73 /* M25P32 */
74 .id[0] = STM_ID_M25P32,
75 .nr_sectors_shift = 6,
76 },
77 {
78 /* M25P40 */
79 .id[0] = STM_ID_M25P40,
80 .nr_sectors_shift = 3,
81 },
82 {
83 /* M25P64 */
84 .id[0] = STM_ID_M25P64,
85 .nr_sectors_shift = 7,
86 },
87 {
88 /* M25P80 */
89 .id[0] = STM_ID_M25P80,
90 .nr_sectors_shift = 4,
91 },
92 {
93 /* M25PX80 */
94 .id[0] = STM_ID_M25PX80,
95 .nr_sectors_shift = 4,
96 },
97 {
98 /* M25PX16 */
99 .id[0] = STM_ID_M25PX16,
100 .nr_sectors_shift = 5,
101 },
102 {
103 /* M25PX32 */
104 .id[0] = STM_ID_M25PX32,
105 .nr_sectors_shift = 6,
106 },
107 {
108 /* M25PX64 */
109 .id[0] = STM_ID_M25PX64,
110 .nr_sectors_shift = 7,
111 },
112 {
113 /* M25PE80 */
114 .id[0] = STM_ID_M25PE80,
115 .nr_sectors_shift = 4,
116 },
117 {
118 /* M25PE16 */
119 .id[0] = STM_ID_M25PE16,
120 .nr_sectors_shift = 5,
121 },
122 {
123 /* M25PE32 */
124 .id[0] = STM_ID_M25PE32,
125 .nr_sectors_shift = 6,
126 },
127 {
128 /* M25PE64 */
129 .id[0] = STM_ID_M25PE64,
130 .nr_sectors_shift = 7,
131 },
132 };
133
134 static const struct spi_flash_part_id flash_table_se256k[] = {
135 {
136 /* M25P128 */
137 .id[0] = STM_ID_M25P128,
138 .nr_sectors_shift = 6,
139 },
140 };
141
142 static const struct spi_flash_part_id flash_table_sse[] = {
143 {
144 /* N25Q016..3E */
145 .id[0] = STM_ID_N25Q016__3E,
146 .nr_sectors_shift = 9,
147 },
148 {
149 /* N25Q032..3E */
150 .id[0] = STM_ID_N25Q032__3E,
151 .nr_sectors_shift = 10,
152 },
153 {
154 /* N25Q064..3E */
155 .id[0] = STM_ID_N25Q064__3E,
156 .nr_sectors_shift = 11,
157 },
158 {
159 /* N25Q128..3E */
160 .id[0] = STM_ID_N25Q128__3E,
161 .nr_sectors_shift = 12,
162 },
163 {
164 /* N25Q256..3E */
165 .id[0] = STM_ID_N25Q256__3E,
166 .nr_sectors_shift = 13,
167 },
168 {
169 /* N25Q016..1E */
170 .id[0] = STM_ID_N25Q016__1E,
171 .nr_sectors_shift = 9,
172 },
173 {
174 /* N25Q032..1E */
175 .id[0] = STM_ID_N25Q032__1E,
176 .nr_sectors_shift = 10,
177 },
178 {
179 /* N25Q064..1E */
180 .id[0] = STM_ID_N25Q064__1E,
181 .nr_sectors_shift = 11,
182 },
183 {
184 /* N25Q128..1E */
185 .id[0] = STM_ID_N25Q128__1E,
186 .nr_sectors_shift = 12,
187 },
188 {
189 /* N25Q256..1E */
190 .id[0] = STM_ID_N25Q256__1E,
191 .nr_sectors_shift = 13,
192 },
193 };
194
stmicro_release_deep_sleep_identify(const struct spi_slave * spi,u8 * idcode)195 int stmicro_release_deep_sleep_identify(const struct spi_slave *spi, u8 *idcode)
196 {
197 if (spi_flash_cmd(spi, CMD_M25PXX_RES, idcode, 4))
198 return -1;
199
200 /* Assuming ST parts identify with 0x1X to release from deep
201 power down and read electronic signature. */
202 if ((idcode[3] & 0xf0) != 0x10)
203 return -1;
204
205 /* Fix up the idcode to mimic rdid jedec instruction. */
206 idcode[0] = 0x20;
207 idcode[1] = 0x20;
208 idcode[2] = idcode[3] + 1;
209
210 return 0;
211 }
212
213 const struct spi_flash_vendor_info spi_flash_stmicro1_vi = {
214 .id = VENDOR_ID_STMICRO,
215 .page_size_shift = 8,
216 .sector_size_kib_shift = 5,
217 .match_id_mask[0] = 0xffff,
218 .ids = flash_table_se32k,
219 .nr_part_ids = ARRAY_SIZE(flash_table_se32k),
220 .desc = &spi_flash_pp_0xd8_sector_desc,
221 };
222
223 const struct spi_flash_vendor_info spi_flash_stmicro2_vi = {
224 .id = VENDOR_ID_STMICRO,
225 .page_size_shift = 8,
226 .sector_size_kib_shift = 6,
227 .match_id_mask[0] = 0xffff,
228 .ids = flash_table_se64k,
229 .nr_part_ids = ARRAY_SIZE(flash_table_se64k),
230 .desc = &spi_flash_pp_0xd8_sector_desc,
231 };
232
233 const struct spi_flash_vendor_info spi_flash_stmicro3_vi = {
234 .id = VENDOR_ID_STMICRO,
235 .page_size_shift = 8,
236 .sector_size_kib_shift = 8,
237 .match_id_mask[0] = 0xffff,
238 .ids = flash_table_se256k,
239 .nr_part_ids = ARRAY_SIZE(flash_table_se256k),
240 .desc = &spi_flash_pp_0xd8_sector_desc,
241 };
242
243 const struct spi_flash_vendor_info spi_flash_stmicro4_vi = {
244 .id = VENDOR_ID_STMICRO,
245 .page_size_shift = 8,
246 .sector_size_kib_shift = 2,
247 .match_id_mask[0] = 0xffff,
248 .ids = flash_table_sse,
249 .nr_part_ids = ARRAY_SIZE(flash_table_sse),
250 .desc = &spi_flash_pp_0x20_sector_desc,
251 };
252