]> git.karo-electronics.de Git - karo-tx-uboot.git/blob - drivers/mtd/spi/sf_internal.h
sf: Remove SECT_32K
[karo-tx-uboot.git] / drivers / mtd / spi / sf_internal.h
1 /*
2  * SPI flash internal definitions
3  *
4  * Copyright (C) 2008 Atmel Corporation
5  * Copyright (C) 2013 Jagannadha Sutradharudu Teki, Xilinx Inc.
6  *
7  * SPDX-License-Identifier:     GPL-2.0+
8  */
9
10 #ifndef _SF_INTERNAL_H_
11 #define _SF_INTERNAL_H_
12
13 #include <linux/types.h>
14 #include <linux/compiler.h>
15
16 /* Dual SPI flash memories - see SPI_COMM_DUAL_... */
17 enum spi_dual_flash {
18         SF_SINGLE_FLASH = 0,
19         SF_DUAL_STACKED_FLASH   = BIT(0),
20         SF_DUAL_PARALLEL_FLASH  = BIT(1),
21 };
22
23 /* sf param flags */
24 enum {
25 #ifndef CONFIG_SPI_FLASH_USE_4K_SECTORS
26         SECT_4K         = 0,
27 #else
28         SECT_4K         = BIT(0),
29 #endif
30         E_FSR           = BIT(1),
31         SST_WR          = BIT(2),
32         WR_QPP          = BIT(3),
33         RD_QUAD         = BIT(4),
34         RD_DUAL         = BIT(5),
35         RD_QUADIO       = BIT(6),
36         RD_DUALIO       = BIT(7),
37 };
38 #define RD_FULL         RD_QUAD | RD_DUAL | RD_QUADIO | RD_DUALIO
39
40 enum spi_nor_option_flags {
41         SNOR_F_SST_WR           = BIT(0),
42         SNOR_F_USE_FSR          = BIT(1),
43 };
44
45 #define SPI_FLASH_3B_ADDR_LEN           3
46 #define SPI_FLASH_CMD_LEN               (1 + SPI_FLASH_3B_ADDR_LEN)
47 #define SPI_FLASH_16MB_BOUN             0x1000000
48
49 /* CFI Manufacture ID's */
50 #define SPI_FLASH_CFI_MFR_SPANSION      0x01
51 #define SPI_FLASH_CFI_MFR_STMICRO       0x20
52 #define SPI_FLASH_CFI_MFR_MACRONIX      0xc2
53 #define SPI_FLASH_CFI_MFR_SST           0xbf
54 #define SPI_FLASH_CFI_MFR_WINBOND       0xef
55 #define SPI_FLASH_CFI_MFR_ATMEL         0x1f
56
57 /* Erase commands */
58 #define CMD_ERASE_4K                    0x20
59 #define CMD_ERASE_CHIP                  0xc7
60 #define CMD_ERASE_64K                   0xd8
61
62 /* Write commands */
63 #define CMD_WRITE_STATUS                0x01
64 #define CMD_PAGE_PROGRAM                0x02
65 #define CMD_WRITE_DISABLE               0x04
66 #define CMD_WRITE_ENABLE                0x06
67 #define CMD_QUAD_PAGE_PROGRAM           0x32
68 #define CMD_WRITE_EVCR                  0x61
69
70 /* Read commands */
71 #define CMD_READ_ARRAY_SLOW             0x03
72 #define CMD_READ_ARRAY_FAST             0x0b
73 #define CMD_READ_DUAL_OUTPUT_FAST       0x3b
74 #define CMD_READ_DUAL_IO_FAST           0xbb
75 #define CMD_READ_QUAD_OUTPUT_FAST       0x6b
76 #define CMD_READ_QUAD_IO_FAST           0xeb
77 #define CMD_READ_ID                     0x9f
78 #define CMD_READ_STATUS                 0x05
79 #define CMD_READ_STATUS1                0x35
80 #define CMD_READ_CONFIG                 0x35
81 #define CMD_FLAG_STATUS                 0x70
82 #define CMD_READ_EVCR                   0x65
83
84 /* Bank addr access commands */
85 #ifdef CONFIG_SPI_FLASH_BAR
86 # define CMD_BANKADDR_BRWR              0x17
87 # define CMD_BANKADDR_BRRD              0x16
88 # define CMD_EXTNADDR_WREAR             0xC5
89 # define CMD_EXTNADDR_RDEAR             0xC8
90 #endif
91
92 /* Common status */
93 #define STATUS_WIP                      BIT(0)
94 #define STATUS_QEB_WINSPAN              BIT(1)
95 #define STATUS_QEB_MXIC                 BIT(6)
96 #define STATUS_PEC                      BIT(7)
97 #define STATUS_QEB_MICRON               BIT(7)
98 #define SR_BP0                          BIT(2)  /* Block protect 0 */
99 #define SR_BP1                          BIT(3)  /* Block protect 1 */
100 #define SR_BP2                          BIT(4)  /* Block protect 2 */
101
102 /* Flash timeout values */
103 #define SPI_FLASH_PROG_TIMEOUT          (2 * CONFIG_SYS_HZ)
104 #define SPI_FLASH_PAGE_ERASE_TIMEOUT    (5 * CONFIG_SYS_HZ)
105 #define SPI_FLASH_SECTOR_ERASE_TIMEOUT  (10 * CONFIG_SYS_HZ)
106
107 /* SST specific */
108 #ifdef CONFIG_SPI_FLASH_SST
109 # define CMD_SST_BP             0x02    /* Byte Program */
110 # define CMD_SST_AAI_WP         0xAD    /* Auto Address Incr Word Program */
111
112 int sst_write_wp(struct spi_flash *flash, u32 offset, size_t len,
113                 const void *buf);
114 int sst_write_bp(struct spi_flash *flash, u32 offset, size_t len,
115                 const void *buf);
116 #endif
117
118 #ifdef CONFIG_SPI_FLASH_SPANSION
119 /* Used for Spansion S25FS-S family flash only. */
120 #define CMD_SPANSION_RDAR       0x65 /* Read any device register */
121 #define CMD_SPANSION_WRAR       0x71 /* Write any device register */
122 #endif
123 /**
124  * struct spi_flash_params - SPI/QSPI flash device params structure
125  *
126  * @name:               Device name ([MANUFLETTER][DEVTYPE][DENSITY][EXTRAINFO])
127  * @jedec:              Device jedec ID (0x[1byte_manuf_id][2byte_dev_id])
128  * @ext_jedec:          Device ext_jedec ID
129  * @sector_size:        Isn't necessarily a sector size from vendor,
130  *                      the size listed here is what works with CMD_ERASE_64K
131  * @nr_sectors:         No.of sectors on this device
132  * @flags:              Important param, for flash specific behaviour
133  */
134 struct spi_flash_params {
135         const char *name;
136         u32 jedec;
137         u16 ext_jedec;
138         u32 sector_size;
139         u32 nr_sectors;
140         u16 flags;
141 };
142
143 extern const struct spi_flash_params spi_flash_params_table[];
144
145 /* Send a single-byte command to the device and read the response */
146 int spi_flash_cmd(struct spi_slave *spi, u8 cmd, void *response, size_t len);
147
148 /*
149  * Send a multi-byte command to the device and read the response. Used
150  * for flash array reads, etc.
151  */
152 int spi_flash_cmd_read(struct spi_slave *spi, const u8 *cmd,
153                 size_t cmd_len, void *data, size_t data_len);
154
155 /*
156  * Send a multi-byte command to the device followed by (optional)
157  * data. Used for programming the flash array, etc.
158  */
159 int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len,
160                 const void *data, size_t data_len);
161
162
163 /* Flash erase(sectors) operation, support all possible erase commands */
164 int spi_flash_cmd_erase_ops(struct spi_flash *flash, u32 offset, size_t len);
165
166 /* Lock stmicro spi flash region */
167 int stm_lock(struct spi_flash *flash, u32 ofs, size_t len);
168
169 /* Unlock stmicro spi flash region */
170 int stm_unlock(struct spi_flash *flash, u32 ofs, size_t len);
171
172 /* Check if a stmicro spi flash region is completely locked */
173 int stm_is_locked(struct spi_flash *flash, u32 ofs, size_t len);
174
175 /* Enable writing on the SPI flash */
176 static inline int spi_flash_cmd_write_enable(struct spi_flash *flash)
177 {
178         return spi_flash_cmd(flash->spi, CMD_WRITE_ENABLE, NULL, 0);
179 }
180
181 /* Disable writing on the SPI flash */
182 static inline int spi_flash_cmd_write_disable(struct spi_flash *flash)
183 {
184         return spi_flash_cmd(flash->spi, CMD_WRITE_DISABLE, NULL, 0);
185 }
186
187 /*
188  * Used for spi_flash write operation
189  * - SPI claim
190  * - spi_flash_cmd_write_enable
191  * - spi_flash_cmd_write
192  * - spi_flash_cmd_wait_ready
193  * - SPI release
194  */
195 int spi_flash_write_common(struct spi_flash *flash, const u8 *cmd,
196                 size_t cmd_len, const void *buf, size_t buf_len);
197
198 /*
199  * Flash write operation, support all possible write commands.
200  * Write the requested data out breaking it up into multiple write
201  * commands as needed per the write size.
202  */
203 int spi_flash_cmd_write_ops(struct spi_flash *flash, u32 offset,
204                 size_t len, const void *buf);
205
206 /*
207  * Same as spi_flash_cmd_read() except it also claims/releases the SPI
208  * bus. Used as common part of the ->read() operation.
209  */
210 int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd,
211                 size_t cmd_len, void *data, size_t data_len);
212
213 /* Flash read operation, support all possible read commands */
214 int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset,
215                 size_t len, void *data);
216
217 #ifdef CONFIG_SPI_FLASH_MTD
218 int spi_flash_mtd_register(struct spi_flash *flash);
219 void spi_flash_mtd_unregister(void);
220 #endif
221
222 /**
223  * spi_flash_scan - scan the SPI FLASH
224  * @flash:      the spi flash structure
225  *
226  * The drivers can use this fuction to scan the SPI FLASH.
227  * In the scanning, it will try to get all the necessary information to
228  * fill the spi_flash{}.
229  *
230  * Return: 0 for success, others for failure.
231  */
232 int spi_flash_scan(struct spi_flash *flash);
233
234 #endif /* _SF_INTERNAL_H_ */