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71f95118 | 1 | /* |
4a6ee172 | 2 | * Copyright 2008,2010 Freescale Semiconductor, Inc |
272cc70b AF |
3 | * Andy Fleming |
4 | * | |
5 | * Based (loosely) on the Linux code | |
71f95118 WD |
6 | * |
7 | * See file CREDITS for list of people who contributed to this | |
8 | * project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; either version 2 of | |
13 | * the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
abe2c93f | 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
71f95118 WD |
18 | * GNU General Public License for more details. |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
23 | * MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | #ifndef _MMC_H_ | |
27 | #define _MMC_H_ | |
71f95118 | 28 | |
272cc70b | 29 | #include <linux/list.h> |
0d986e61 | 30 | #include <linux/compiler.h> |
272cc70b AF |
31 | |
32 | #define SD_VERSION_SD 0x20000 | |
1741c64d | 33 | #define SD_VERSION_3 (SD_VERSION_SD | 0x300) |
64f4a619 JC |
34 | #define SD_VERSION_2 (SD_VERSION_SD | 0x200) |
35 | #define SD_VERSION_1_0 (SD_VERSION_SD | 0x100) | |
36 | #define SD_VERSION_1_10 (SD_VERSION_SD | 0x10a) | |
272cc70b AF |
37 | #define MMC_VERSION_MMC 0x10000 |
38 | #define MMC_VERSION_UNKNOWN (MMC_VERSION_MMC) | |
64f4a619 JC |
39 | #define MMC_VERSION_1_2 (MMC_VERSION_MMC | 0x102) |
40 | #define MMC_VERSION_1_4 (MMC_VERSION_MMC | 0x104) | |
41 | #define MMC_VERSION_2_2 (MMC_VERSION_MMC | 0x202) | |
42 | #define MMC_VERSION_3 (MMC_VERSION_MMC | 0x300) | |
43 | #define MMC_VERSION_4 (MMC_VERSION_MMC | 0x400) | |
44 | #define MMC_VERSION_4_1 (MMC_VERSION_MMC | 0x401) | |
45 | #define MMC_VERSION_4_2 (MMC_VERSION_MMC | 0x402) | |
46 | #define MMC_VERSION_4_3 (MMC_VERSION_MMC | 0x403) | |
47 | #define MMC_VERSION_4_41 (MMC_VERSION_MMC | 0x429) | |
48 | #define MMC_VERSION_4_5 (MMC_VERSION_MMC | 0x405) | |
272cc70b AF |
49 | |
50 | #define MMC_MODE_HS 0x001 | |
51 | #define MMC_MODE_HS_52MHz 0x010 | |
52 | #define MMC_MODE_4BIT 0x100 | |
53 | #define MMC_MODE_8BIT 0x200 | |
d52ebf10 | 54 | #define MMC_MODE_SPI 0x400 |
b1f1e821 | 55 | #define MMC_MODE_HC 0x800 |
272cc70b | 56 | |
62722036 ŁM |
57 | #define MMC_MODE_MASK_WIDTH_BITS (MMC_MODE_4BIT | MMC_MODE_8BIT) |
58 | #define MMC_MODE_WIDTH_BITS_SHIFT 8 | |
59 | ||
272cc70b AF |
60 | #define SD_DATA_4BIT 0x00040000 |
61 | ||
79b91de9 | 62 | #define IS_SD(x) (x->version & SD_VERSION_SD) |
272cc70b AF |
63 | |
64 | #define MMC_DATA_READ 1 | |
65 | #define MMC_DATA_WRITE 2 | |
66 | ||
67 | #define NO_CARD_ERR -16 /* No SD/MMC card inserted */ | |
68 | #define UNUSABLE_ERR -17 /* Unusable Card */ | |
69 | #define COMM_ERR -18 /* Communications Error */ | |
70 | #define TIMEOUT -19 | |
71 | ||
341188b9 HS |
72 | #define MMC_CMD_GO_IDLE_STATE 0 |
73 | #define MMC_CMD_SEND_OP_COND 1 | |
74 | #define MMC_CMD_ALL_SEND_CID 2 | |
75 | #define MMC_CMD_SET_RELATIVE_ADDR 3 | |
76 | #define MMC_CMD_SET_DSR 4 | |
272cc70b | 77 | #define MMC_CMD_SWITCH 6 |
341188b9 | 78 | #define MMC_CMD_SELECT_CARD 7 |
272cc70b | 79 | #define MMC_CMD_SEND_EXT_CSD 8 |
341188b9 HS |
80 | #define MMC_CMD_SEND_CSD 9 |
81 | #define MMC_CMD_SEND_CID 10 | |
272cc70b | 82 | #define MMC_CMD_STOP_TRANSMISSION 12 |
341188b9 HS |
83 | #define MMC_CMD_SEND_STATUS 13 |
84 | #define MMC_CMD_SET_BLOCKLEN 16 | |
85 | #define MMC_CMD_READ_SINGLE_BLOCK 17 | |
86 | #define MMC_CMD_READ_MULTIPLE_BLOCK 18 | |
272cc70b AF |
87 | #define MMC_CMD_WRITE_SINGLE_BLOCK 24 |
88 | #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25 | |
e6f99a56 LW |
89 | #define MMC_CMD_ERASE_GROUP_START 35 |
90 | #define MMC_CMD_ERASE_GROUP_END 36 | |
91 | #define MMC_CMD_ERASE 38 | |
341188b9 | 92 | #define MMC_CMD_APP_CMD 55 |
d52ebf10 TC |
93 | #define MMC_CMD_SPI_READ_OCR 58 |
94 | #define MMC_CMD_SPI_CRC_ON_OFF 59 | |
341188b9 | 95 | |
341188b9 | 96 | #define SD_CMD_SEND_RELATIVE_ADDR 3 |
272cc70b | 97 | #define SD_CMD_SWITCH_FUNC 6 |
341188b9 HS |
98 | #define SD_CMD_SEND_IF_COND 8 |
99 | ||
100 | #define SD_CMD_APP_SET_BUS_WIDTH 6 | |
e6f99a56 LW |
101 | #define SD_CMD_ERASE_WR_BLK_START 32 |
102 | #define SD_CMD_ERASE_WR_BLK_END 33 | |
341188b9 | 103 | #define SD_CMD_APP_SEND_OP_COND 41 |
272cc70b AF |
104 | #define SD_CMD_APP_SEND_SCR 51 |
105 | ||
106 | /* SCR definitions in different words */ | |
107 | #define SD_HIGHSPEED_BUSY 0x00020000 | |
108 | #define SD_HIGHSPEED_SUPPORTED 0x00020000 | |
109 | ||
110 | #define MMC_HS_TIMING 0x00000100 | |
111 | #define MMC_HS_52MHZ 0x2 | |
112 | ||
abe2c93f TC |
113 | #define OCR_BUSY 0x80000000 |
114 | #define OCR_HCS 0x40000000 | |
31cacbab RR |
115 | #define OCR_VOLTAGE_MASK 0x007FFF80 |
116 | #define OCR_ACCESS_MODE 0x60000000 | |
272cc70b | 117 | |
e6f99a56 LW |
118 | #define SECURE_ERASE 0x80000000 |
119 | ||
5d4fc8d9 | 120 | #define MMC_STATUS_MASK (~0x0206BF7F) |
abe2c93f TC |
121 | #define MMC_STATUS_RDY_FOR_DATA (1 << 8) |
122 | #define MMC_STATUS_CURR_STATE (0xf << 9) | |
ed018b21 | 123 | #define MMC_STATUS_ERROR (1 << 19) |
5d4fc8d9 | 124 | |
d617c426 JK |
125 | #define MMC_STATE_PRG (7 << 9) |
126 | ||
272cc70b AF |
127 | #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ |
128 | #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ | |
129 | #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */ | |
130 | #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */ | |
131 | #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */ | |
132 | #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */ | |
133 | #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */ | |
134 | #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */ | |
135 | #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */ | |
136 | #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */ | |
137 | #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */ | |
138 | #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */ | |
139 | #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */ | |
140 | #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */ | |
141 | #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ | |
142 | #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ | |
143 | #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ | |
144 | ||
145 | #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */ | |
146 | #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte | |
147 | addressed by index which are | |
148 | 1 in value field */ | |
149 | #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte | |
150 | addressed by index, which are | |
151 | 1 in value field */ | |
152 | #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */ | |
153 | ||
154 | #define SD_SWITCH_CHECK 0 | |
155 | #define SD_SWITCH_SWITCH 1 | |
156 | ||
157 | /* | |
158 | * EXT_CSD fields | |
159 | */ | |
0560db18 LW |
160 | #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */ |
161 | #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ | |
162 | #define EXT_CSD_PART_CONF 179 /* R/W */ | |
163 | #define EXT_CSD_BUS_WIDTH 183 /* R/W */ | |
164 | #define EXT_CSD_HS_TIMING 185 /* R/W */ | |
165 | #define EXT_CSD_REV 192 /* RO */ | |
166 | #define EXT_CSD_CARD_TYPE 196 /* RO */ | |
167 | #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ | |
168 | #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ | |
8948ea83 | 169 | #define EXT_CSD_BOOT_MULT 226 /* RO */ |
272cc70b AF |
170 | |
171 | /* | |
172 | * EXT_CSD field definitions | |
173 | */ | |
174 | ||
abe2c93f TC |
175 | #define EXT_CSD_CMD_SET_NORMAL (1 << 0) |
176 | #define EXT_CSD_CMD_SET_SECURE (1 << 1) | |
177 | #define EXT_CSD_CMD_SET_CPSECURE (1 << 2) | |
272cc70b | 178 | |
abe2c93f TC |
179 | #define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */ |
180 | #define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */ | |
272cc70b AF |
181 | |
182 | #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */ | |
183 | #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ | |
184 | #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ | |
341188b9 | 185 | |
1de97f98 AF |
186 | #define R1_ILLEGAL_COMMAND (1 << 22) |
187 | #define R1_APP_CMD (1 << 5) | |
188 | ||
272cc70b | 189 | #define MMC_RSP_PRESENT (1 << 0) |
abe2c93f TC |
190 | #define MMC_RSP_136 (1 << 1) /* 136 bit response */ |
191 | #define MMC_RSP_CRC (1 << 2) /* expect valid crc */ | |
192 | #define MMC_RSP_BUSY (1 << 3) /* card may send busy */ | |
193 | #define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */ | |
272cc70b | 194 | |
abe2c93f TC |
195 | #define MMC_RSP_NONE (0) |
196 | #define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) | |
272cc70b AF |
197 | #define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \ |
198 | MMC_RSP_BUSY) | |
abe2c93f TC |
199 | #define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC) |
200 | #define MMC_RSP_R3 (MMC_RSP_PRESENT) | |
201 | #define MMC_RSP_R4 (MMC_RSP_PRESENT) | |
202 | #define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) | |
203 | #define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) | |
204 | #define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) | |
272cc70b | 205 | |
bc897b1d LW |
206 | #define MMCPART_NOAVAILABLE (0xff) |
207 | #define PART_ACCESS_MASK (0x7) | |
208 | #define PART_SUPPORT (0x1) | |
71f95118 | 209 | |
8bfa195e SG |
210 | /* Maximum block size for MMC */ |
211 | #define MMC_MAX_BLOCK_LEN 512 | |
212 | ||
1de97f98 AF |
213 | struct mmc_cid { |
214 | unsigned long psn; | |
215 | unsigned short oid; | |
216 | unsigned char mid; | |
217 | unsigned char prv; | |
218 | unsigned char mdt; | |
219 | char pnm[7]; | |
220 | }; | |
221 | ||
272cc70b AF |
222 | struct mmc_cmd { |
223 | ushort cmdidx; | |
224 | uint resp_type; | |
225 | uint cmdarg; | |
0b453ffe | 226 | uint response[4]; |
272cc70b AF |
227 | }; |
228 | ||
229 | struct mmc_data { | |
230 | union { | |
231 | char *dest; | |
232 | const char *src; /* src buffers don't get written to */ | |
233 | }; | |
234 | uint flags; | |
235 | uint blocks; | |
236 | uint blocksize; | |
237 | }; | |
238 | ||
239 | struct mmc { | |
240 | struct list_head link; | |
241 | char name[32]; | |
242 | void *priv; | |
243 | uint voltages; | |
244 | uint version; | |
bc897b1d | 245 | uint has_init; |
272cc70b AF |
246 | uint f_min; |
247 | uint f_max; | |
248 | int high_capacity; | |
249 | uint bus_width; | |
250 | uint clock; | |
251 | uint card_caps; | |
252 | uint host_caps; | |
253 | uint ocr; | |
254 | uint scr[2]; | |
255 | uint csd[4]; | |
0b453ffe | 256 | uint cid[4]; |
272cc70b | 257 | ushort rca; |
bc897b1d LW |
258 | char part_config; |
259 | char part_num; | |
272cc70b AF |
260 | uint tran_speed; |
261 | uint read_bl_len; | |
262 | uint write_bl_len; | |
e6f99a56 | 263 | uint erase_grp_size; |
272cc70b AF |
264 | u64 capacity; |
265 | block_dev_desc_t block_dev; | |
266 | int (*send_cmd)(struct mmc *mmc, | |
267 | struct mmc_cmd *cmd, struct mmc_data *data); | |
268 | void (*set_ios)(struct mmc *mmc); | |
269 | int (*init)(struct mmc *mmc); | |
48972d90 | 270 | int (*getcd)(struct mmc *mmc); |
d23d8d7e | 271 | int (*getwp)(struct mmc *mmc); |
57418d21 | 272 | uint b_max; |
272cc70b AF |
273 | }; |
274 | ||
275 | int mmc_register(struct mmc *mmc); | |
276 | int mmc_initialize(bd_t *bis); | |
277 | int mmc_init(struct mmc *mmc); | |
278 | int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size); | |
4a6ee172 | 279 | void mmc_set_clock(struct mmc *mmc, uint clock); |
272cc70b | 280 | struct mmc *find_mmc_device(int dev_num); |
89716964 | 281 | int mmc_set_dev(int dev_num); |
272cc70b | 282 | void print_mmc_devices(char separator); |
ea6ebe21 | 283 | int get_mmc_num(void); |
314284b1 | 284 | int board_mmc_getcd(struct mmc *mmc); |
bc897b1d | 285 | int mmc_switch_part(int dev_num, unsigned int part_num); |
48972d90 | 286 | int mmc_getcd(struct mmc *mmc); |
d23d8d7e | 287 | int mmc_getwp(struct mmc *mmc); |
0d986e61 | 288 | void spl_mmc_load(void) __noreturn; |
272cc70b | 289 | |
1592ef85 | 290 | #ifdef CONFIG_GENERIC_MMC |
d52ebf10 TC |
291 | #define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI) |
292 | struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode); | |
1592ef85 | 293 | #else |
272cc70b AF |
294 | int mmc_legacy_init(int verbose); |
295 | #endif | |
1592ef85 | 296 | |
71f95118 | 297 | #endif /* _MMC_H_ */ |