1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright 2008,2010 Freescale Semiconductor, Inc
6 * Based (loosely) on the Linux code
12 #include <linux/bitops.h>
13 #include <linux/list.h>
14 #include <linux/sizes.h>
15 #include <linux/compiler.h>
16 #include <linux/dma-direction.h>
21 #if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
22 #define MMC_SUPPORTS_TUNING
24 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
25 #define MMC_SUPPORTS_TUNING
28 /* SD/MMC version bits; 8 flags, 8 major, 8 minor, 8 change */
29 #define SD_VERSION_SD (1U << 31)
30 #define MMC_VERSION_MMC (1U << 30)
32 #define MAKE_SDMMC_VERSION(a, b, c) \
33 ((((u32)(a)) << 16) | ((u32)(b) << 8) | (u32)(c))
34 #define MAKE_SD_VERSION(a, b, c) \
35 (SD_VERSION_SD | MAKE_SDMMC_VERSION(a, b, c))
36 #define MAKE_MMC_VERSION(a, b, c) \
37 (MMC_VERSION_MMC | MAKE_SDMMC_VERSION(a, b, c))
39 #define EXTRACT_SDMMC_MAJOR_VERSION(x) \
40 (((u32)(x) >> 16) & 0xff)
41 #define EXTRACT_SDMMC_MINOR_VERSION(x) \
42 (((u32)(x) >> 8) & 0xff)
43 #define EXTRACT_SDMMC_CHANGE_VERSION(x) \
46 #define SD_VERSION_3 MAKE_SD_VERSION(3, 0, 0)
47 #define SD_VERSION_2 MAKE_SD_VERSION(2, 0, 0)
48 #define SD_VERSION_1_0 MAKE_SD_VERSION(1, 0, 0)
49 #define SD_VERSION_1_10 MAKE_SD_VERSION(1, 10, 0)
51 #define MMC_VERSION_UNKNOWN MAKE_MMC_VERSION(0, 0, 0)
52 #define MMC_VERSION_1_2 MAKE_MMC_VERSION(1, 2, 0)
53 #define MMC_VERSION_1_4 MAKE_MMC_VERSION(1, 4, 0)
54 #define MMC_VERSION_2_2 MAKE_MMC_VERSION(2, 2, 0)
55 #define MMC_VERSION_3 MAKE_MMC_VERSION(3, 0, 0)
56 #define MMC_VERSION_4 MAKE_MMC_VERSION(4, 0, 0)
57 #define MMC_VERSION_4_1 MAKE_MMC_VERSION(4, 1, 0)
58 #define MMC_VERSION_4_2 MAKE_MMC_VERSION(4, 2, 0)
59 #define MMC_VERSION_4_3 MAKE_MMC_VERSION(4, 3, 0)
60 #define MMC_VERSION_4_4 MAKE_MMC_VERSION(4, 4, 0)
61 #define MMC_VERSION_4_41 MAKE_MMC_VERSION(4, 4, 1)
62 #define MMC_VERSION_4_5 MAKE_MMC_VERSION(4, 5, 0)
63 #define MMC_VERSION_5_0 MAKE_MMC_VERSION(5, 0, 0)
64 #define MMC_VERSION_5_1 MAKE_MMC_VERSION(5, 1, 0)
66 #define MMC_CAP(mode) (1 << mode)
67 #define MMC_MODE_HS (MMC_CAP(MMC_HS) | MMC_CAP(SD_HS))
68 #define MMC_MODE_HS_52MHz MMC_CAP(MMC_HS_52)
69 #define MMC_MODE_DDR_52MHz MMC_CAP(MMC_DDR_52)
70 #define MMC_MODE_HS200 MMC_CAP(MMC_HS_200)
71 #define MMC_MODE_HS400 MMC_CAP(MMC_HS_400)
72 #define MMC_MODE_HS400_ES MMC_CAP(MMC_HS_400_ES)
74 #define MMC_CAP_NONREMOVABLE BIT(14)
75 #define MMC_CAP_NEEDS_POLL BIT(15)
76 #define MMC_CAP_CD_ACTIVE_HIGH BIT(16)
78 #define MMC_MODE_8BIT BIT(30)
79 #define MMC_MODE_4BIT BIT(29)
80 #define MMC_MODE_1BIT BIT(28)
81 #define MMC_MODE_SPI BIT(27)
84 #define SD_DATA_4BIT 0x00040000
86 #define IS_SD(x) ((x)->version & SD_VERSION_SD)
87 #define IS_MMC(x) ((x)->version & MMC_VERSION_MMC)
89 #define MMC_DATA_READ 1
90 #define MMC_DATA_WRITE 2
92 #define MMC_CMD_GO_IDLE_STATE 0
93 #define MMC_CMD_SEND_OP_COND 1
94 #define MMC_CMD_ALL_SEND_CID 2
95 #define MMC_CMD_SET_RELATIVE_ADDR 3
96 #define MMC_CMD_SET_DSR 4
97 #define MMC_CMD_SWITCH 6
98 #define MMC_CMD_SELECT_CARD 7
99 #define MMC_CMD_SEND_EXT_CSD 8
100 #define MMC_CMD_SEND_CSD 9
101 #define MMC_CMD_SEND_CID 10
102 #define MMC_CMD_STOP_TRANSMISSION 12
103 #define MMC_CMD_SEND_STATUS 13
104 #define MMC_CMD_SET_BLOCKLEN 16
105 #define MMC_CMD_READ_SINGLE_BLOCK 17
106 #define MMC_CMD_READ_MULTIPLE_BLOCK 18
107 #define MMC_CMD_SEND_TUNING_BLOCK 19
108 #define MMC_CMD_SEND_TUNING_BLOCK_HS200 21
109 #define MMC_CMD_SET_BLOCK_COUNT 23
110 #define MMC_CMD_WRITE_SINGLE_BLOCK 24
111 #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25
112 #define MMC_CMD_ERASE_GROUP_START 35
113 #define MMC_CMD_ERASE_GROUP_END 36
114 #define MMC_CMD_ERASE 38
115 #define MMC_CMD_APP_CMD 55
116 #define MMC_CMD_SPI_READ_OCR 58
117 #define MMC_CMD_SPI_CRC_ON_OFF 59
118 #define MMC_CMD_RES_MAN 62
120 #define MMC_CMD62_ARG1 0xefac62ec
121 #define MMC_CMD62_ARG2 0xcbaea7
124 #define SD_CMD_SEND_RELATIVE_ADDR 3
125 #define SD_CMD_SWITCH_FUNC 6
126 #define SD_CMD_SEND_IF_COND 8
127 #define SD_CMD_SWITCH_UHS18V 11
129 #define SD_CMD_APP_SET_BUS_WIDTH 6
130 #define SD_CMD_APP_SD_STATUS 13
131 #define SD_CMD_ERASE_WR_BLK_START 32
132 #define SD_CMD_ERASE_WR_BLK_END 33
133 #define SD_CMD_APP_SEND_OP_COND 41
134 #define SD_CMD_APP_SEND_SCR 51
136 static inline bool mmc_is_tuning_cmd(uint cmdidx)
138 if ((cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200) ||
139 (cmdidx == MMC_CMD_SEND_TUNING_BLOCK))
144 /* SCR definitions in different words */
145 #define SD_HIGHSPEED_BUSY 0x00020000
146 #define SD_HIGHSPEED_SUPPORTED 0x00020000
148 #define UHS_SDR12_BUS_SPEED 0
149 #define HIGH_SPEED_BUS_SPEED 1
150 #define UHS_SDR25_BUS_SPEED 1
151 #define UHS_SDR50_BUS_SPEED 2
152 #define UHS_SDR104_BUS_SPEED 3
153 #define UHS_DDR50_BUS_SPEED 4
155 #define SD_MODE_UHS_SDR12 BIT(UHS_SDR12_BUS_SPEED)
156 #define SD_MODE_UHS_SDR25 BIT(UHS_SDR25_BUS_SPEED)
157 #define SD_MODE_UHS_SDR50 BIT(UHS_SDR50_BUS_SPEED)
158 #define SD_MODE_UHS_SDR104 BIT(UHS_SDR104_BUS_SPEED)
159 #define SD_MODE_UHS_DDR50 BIT(UHS_DDR50_BUS_SPEED)
161 #define OCR_BUSY 0x80000000
162 #define OCR_HCS 0x40000000
163 #define OCR_S18R 0x1000000
164 #define OCR_VOLTAGE_MASK 0x007FFF80
165 #define OCR_ACCESS_MODE 0x60000000
167 #define MMC_ERASE_ARG 0x00000000
168 #define MMC_SECURE_ERASE_ARG 0x80000000
169 #define MMC_TRIM_ARG 0x00000001
170 #define MMC_DISCARD_ARG 0x00000003
171 #define MMC_SECURE_TRIM1_ARG 0x80000001
172 #define MMC_SECURE_TRIM2_ARG 0x80008000
174 #define MMC_STATUS_MASK (~0x0206BF7F)
175 #define MMC_STATUS_SWITCH_ERROR (1 << 7)
176 #define MMC_STATUS_RDY_FOR_DATA (1 << 8)
177 #define MMC_STATUS_CURR_STATE (0xf << 9)
178 #define MMC_STATUS_ERROR (1 << 19)
180 #define MMC_STATE_PRG (7 << 9)
182 #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */
183 #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */
184 #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */
185 #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */
186 #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */
187 #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */
188 #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */
189 #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */
190 #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */
191 #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */
192 #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */
193 #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */
194 #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */
195 #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */
196 #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */
197 #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */
198 #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */
200 #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */
201 #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte
202 addressed by index which are
204 #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte
205 addressed by index, which are
207 #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */
209 #define SD_SWITCH_CHECK 0
210 #define SD_SWITCH_SWITCH 1
215 #define EXT_CSD_ENH_START_ADDR 136 /* R/W */
216 #define EXT_CSD_ENH_SIZE_MULT 140 /* R/W */
217 #define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
218 #define EXT_CSD_PARTITION_SETTING 155 /* R/W */
219 #define EXT_CSD_PARTITIONS_ATTRIBUTE 156 /* R/W */
220 #define EXT_CSD_MAX_ENH_SIZE_MULT 157 /* R */
221 #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */
222 #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
223 #define EXT_CSD_BKOPS_EN 163 /* R/W & R/W/E */
224 #define EXT_CSD_WR_REL_PARAM 166 /* R */
225 #define EXT_CSD_WR_REL_SET 167 /* R/W */
226 #define EXT_CSD_RPMB_MULT 168 /* RO */
227 #define EXT_CSD_USER_WP 171 /* R/W & R/W/C_P & R/W/E_P */
228 #define EXT_CSD_BOOT_WP 173 /* R/W & R/W/C_P */
229 #define EXT_CSD_BOOT_WP_STATUS 174 /* R */
230 #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
231 #define EXT_CSD_BOOT_BUS_WIDTH 177
232 #define EXT_CSD_PART_CONF 179 /* R/W */
233 #define EXT_CSD_BUS_WIDTH 183 /* R/W */
234 #define EXT_CSD_STROBE_SUPPORT 184 /* R/W */
235 #define EXT_CSD_HS_TIMING 185 /* R/W */
236 #define EXT_CSD_REV 192 /* RO */
237 #define EXT_CSD_CARD_TYPE 196 /* RO */
238 #define EXT_CSD_PART_SWITCH_TIME 199 /* RO */
239 #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
240 #define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */
241 #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */
242 #define EXT_CSD_BOOT_MULT 226 /* RO */
243 #define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */
244 #define EXT_CSD_BKOPS_SUPPORT 502 /* RO */
247 * EXT_CSD field definitions
250 #define EXT_CSD_CMD_SET_NORMAL (1 << 0)
251 #define EXT_CSD_CMD_SET_SECURE (1 << 1)
252 #define EXT_CSD_CMD_SET_CPSECURE (1 << 2)
254 #define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */
255 #define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */
256 #define EXT_CSD_CARD_TYPE_DDR_1_8V (1 << 2)
257 #define EXT_CSD_CARD_TYPE_DDR_1_2V (1 << 3)
258 #define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \
259 | EXT_CSD_CARD_TYPE_DDR_1_2V)
261 #define EXT_CSD_CARD_TYPE_HS200_1_8V BIT(4) /* Card can run at 200MHz */
262 /* SDR mode @1.8V I/O */
263 #define EXT_CSD_CARD_TYPE_HS200_1_2V BIT(5) /* Card can run at 200MHz */
264 /* SDR mode @1.2V I/O */
265 #define EXT_CSD_CARD_TYPE_HS200 (EXT_CSD_CARD_TYPE_HS200_1_8V | \
266 EXT_CSD_CARD_TYPE_HS200_1_2V)
267 #define EXT_CSD_CARD_TYPE_HS400_1_8V BIT(6)
268 #define EXT_CSD_CARD_TYPE_HS400_1_2V BIT(7)
269 #define EXT_CSD_CARD_TYPE_HS400 (EXT_CSD_CARD_TYPE_HS400_1_8V | \
270 EXT_CSD_CARD_TYPE_HS400_1_2V)
272 #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
273 #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
274 #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
275 #define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */
276 #define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */
277 #define EXT_CSD_DDR_FLAG BIT(2) /* Flag for DDR mode */
278 #define EXT_CSD_BUS_WIDTH_STROBE BIT(7) /* Enhanced strobe mode */
280 #define EXT_CSD_TIMING_LEGACY 0 /* no high speed */
281 #define EXT_CSD_TIMING_HS 1 /* HS */
282 #define EXT_CSD_TIMING_HS200 2 /* HS200 */
283 #define EXT_CSD_TIMING_HS400 3 /* HS400 */
284 #define EXT_CSD_DRV_STR_SHIFT 4 /* Driver Strength shift */
286 #define EXT_CSD_BOOT_ACK_ENABLE (1 << 6)
287 #define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3)
288 #define EXT_CSD_PARTITION_ACCESS_ENABLE (1 << 0)
289 #define EXT_CSD_PARTITION_ACCESS_DISABLE (0 << 0)
291 #define EXT_CSD_BOOT_ACK(x) (x << 6)
292 #define EXT_CSD_BOOT_PART_NUM(x) (x << 3)
293 #define EXT_CSD_PARTITION_ACCESS(x) (x << 0)
295 #define EXT_CSD_EXTRACT_BOOT_ACK(x) (((x) >> 6) & 0x1)
296 #define EXT_CSD_EXTRACT_BOOT_PART(x) (((x) >> 3) & 0x7)
297 #define EXT_CSD_EXTRACT_PARTITION_ACCESS(x) ((x) & 0x7)
299 #define EXT_CSD_BOOT_BUS_WIDTH_MODE(x) (x << 3)
300 #define EXT_CSD_BOOT_BUS_WIDTH_RESET(x) (x << 2)
301 #define EXT_CSD_BOOT_BUS_WIDTH_WIDTH(x) (x)
303 #define EXT_CSD_PARTITION_SETTING_COMPLETED (1 << 0)
305 #define EXT_CSD_ENH_USR (1 << 0) /* user data area is enhanced */
306 #define EXT_CSD_ENH_GP(x) (1 << ((x)+1)) /* GP part (x+1) is enhanced */
308 #define EXT_CSD_HS_CTRL_REL (1 << 0) /* host controlled WR_REL_SET */
310 #define EXT_CSD_WR_DATA_REL_USR (1 << 0) /* user data area WR_REL */
311 #define EXT_CSD_WR_DATA_REL_GP(x) (1 << ((x)+1)) /* GP part (x+1) WR_REL */
313 #define R1_ILLEGAL_COMMAND (1 << 22)
314 #define R1_APP_CMD (1 << 5)
316 #define MMC_RSP_PRESENT (1 << 0)
317 #define MMC_RSP_136 (1 << 1) /* 136 bit response */
318 #define MMC_RSP_CRC (1 << 2) /* expect valid crc */
319 #define MMC_RSP_BUSY (1 << 3) /* card may send busy */
320 #define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
322 #define MMC_RSP_NONE (0)
323 #define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
324 #define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \
326 #define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
327 #define MMC_RSP_R3 (MMC_RSP_PRESENT)
328 #define MMC_RSP_R4 (MMC_RSP_PRESENT)
329 #define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
330 #define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
331 #define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
333 #define MMCPART_NOAVAILABLE (0xff)
334 #define PART_ACCESS_MASK (0x7)
335 #define PART_SUPPORT (0x1)
336 #define ENHNCD_SUPPORT (0x2)
337 #define PART_ENH_ATTRIB (0x1f)
339 #define MMC_QUIRK_RETRY_SEND_CID BIT(0)
340 #define MMC_QUIRK_RETRY_SET_BLOCKLEN BIT(1)
341 #define MMC_QUIRK_RETRY_APP_CMD BIT(2)
344 MMC_SIGNAL_VOLTAGE_000 = 0,
345 MMC_SIGNAL_VOLTAGE_120 = 1,
346 MMC_SIGNAL_VOLTAGE_180 = 2,
347 MMC_SIGNAL_VOLTAGE_330 = 4,
350 #define MMC_ALL_SIGNAL_VOLTAGE (MMC_SIGNAL_VOLTAGE_120 |\
351 MMC_SIGNAL_VOLTAGE_180 |\
352 MMC_SIGNAL_VOLTAGE_330)
354 /* Maximum block size for MMC */
355 #define MMC_MAX_BLOCK_LEN 512
357 /* The number of MMC physical partitions. These consist of:
358 * boot partitions (2), general purpose partitions (4) in MMC v4.4.
360 #define MMC_NUM_BOOT_PARTITION 2
361 #define MMC_PART_RPMB 3 /* RPMB partition number */
363 /* Driver model support */
366 * struct mmc_uclass_priv - Holds information about a device used by the uclass
368 struct mmc_uclass_priv {
373 * mmc_get_mmc_dev() - get the MMC struct pointer for a device
375 * Provided that the device is already probed and ready for use, this value
379 * @return associated mmc struct pointer if available, else NULL
381 struct mmc *mmc_get_mmc_dev(const struct udevice *dev);
383 /* End of driver model support */
404 const char *src; /* src buffers don't get written to */
414 #if CONFIG_IS_ENABLED(DM_MMC)
417 * deferred_probe() - Some configurations that need to be deferred
418 * to just before enumerating the device
420 * @dev: Device to init
421 * @return 0 if Ok, -ve if error
423 int (*deferred_probe)(struct udevice *dev);
425 * send_cmd() - Send a command to the MMC device
427 * @dev: Device to receive the command
428 * @cmd: Command to send
429 * @data: Additional data to send/receive
430 * @return 0 if OK, -ve on error
432 int (*send_cmd)(struct udevice *dev, struct mmc_cmd *cmd,
433 struct mmc_data *data);
436 * set_ios() - Set the I/O speed/width for an MMC device
438 * @dev: Device to update
439 * @return 0 if OK, -ve on error
441 int (*set_ios)(struct udevice *dev);
444 * get_cd() - See whether a card is present
446 * @dev: Device to check
447 * @return 0 if not present, 1 if present, -ve on error
449 int (*get_cd)(struct udevice *dev);
452 * get_wp() - See whether a card has write-protect enabled
454 * @dev: Device to check
455 * @return 0 if write-enabled, 1 if write-protected, -ve on error
457 int (*get_wp)(struct udevice *dev);
459 #ifdef MMC_SUPPORTS_TUNING
461 * execute_tuning() - Start the tuning process
463 * @dev: Device to start the tuning
464 * @opcode: Command opcode to send
465 * @return 0 if OK, -ve on error
467 int (*execute_tuning)(struct udevice *dev, uint opcode);
471 * wait_dat0() - wait until dat0 is in the target state
472 * (CLK must be running during the wait)
474 * @dev: Device to check
475 * @state: target state
476 * @timeout_us: timeout in us
477 * @return 0 if dat0 is in the target state, -ve on error
479 int (*wait_dat0)(struct udevice *dev, int state, int timeout_us);
481 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
482 /* set_enhanced_strobe() - set HS400 enhanced strobe */
483 int (*set_enhanced_strobe)(struct udevice *dev);
487 * host_power_cycle - host specific tasks in power cycle sequence
488 * Called between mmc_power_off() and
491 * @dev: Device to check
492 * @return 0 if not present, 1 if present, -ve on error
494 int (*host_power_cycle)(struct udevice *dev);
497 * get_b_max - get maximum length of single transfer
498 * Called before reading blocks from the card,
499 * useful for system which have e.g. DMA limits
500 * on various memory ranges.
502 * @dev: Device to check
503 * @dst: Destination buffer in memory
504 * @blkcnt: Total number of blocks in this transfer
505 * @return maximum number of blocks for this transfer
507 int (*get_b_max)(struct udevice *dev, void *dst, lbaint_t blkcnt);
510 #define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops)
512 int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
513 struct mmc_data *data);
514 int dm_mmc_set_ios(struct udevice *dev);
515 int dm_mmc_get_cd(struct udevice *dev);
516 int dm_mmc_get_wp(struct udevice *dev);
517 int dm_mmc_execute_tuning(struct udevice *dev, uint opcode);
518 int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us);
519 int dm_mmc_host_power_cycle(struct udevice *dev);
520 int dm_mmc_deferred_probe(struct udevice *dev);
521 int dm_mmc_get_b_max(struct udevice *dev, void *dst, lbaint_t blkcnt);
523 /* Transition functions for compatibility */
524 int mmc_set_ios(struct mmc *mmc);
525 int mmc_getcd(struct mmc *mmc);
526 int mmc_getwp(struct mmc *mmc);
527 int mmc_execute_tuning(struct mmc *mmc, uint opcode);
528 int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us);
529 int mmc_set_enhanced_strobe(struct mmc *mmc);
530 int mmc_host_power_cycle(struct mmc *mmc);
531 int mmc_deferred_probe(struct mmc *mmc);
532 int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt);
536 int (*send_cmd)(struct mmc *mmc,
537 struct mmc_cmd *cmd, struct mmc_data *data);
538 int (*set_ios)(struct mmc *mmc);
539 int (*init)(struct mmc *mmc);
540 int (*getcd)(struct mmc *mmc);
541 int (*getwp)(struct mmc *mmc);
542 int (*host_power_cycle)(struct mmc *mmc);
543 int (*get_b_max)(struct mmc *mmc, void *dst, lbaint_t blkcnt);
549 #if !CONFIG_IS_ENABLED(DM_MMC)
550 const struct mmc_ops *ops;
557 unsigned char part_type;
561 unsigned int au; /* In sectors */
562 unsigned int erase_timeout; /* In milliseconds */
563 unsigned int erase_offset; /* In milliseconds */
583 const char *mmc_mode_name(enum bus_mode mode);
584 void mmc_dump_capabilities(const char *text, uint caps);
586 static inline bool mmc_is_mode_ddr(enum bus_mode mode)
588 if (mode == MMC_DDR_52)
590 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
591 else if (mode == UHS_DDR50)
594 #if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
595 else if (mode == MMC_HS_400)
598 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
599 else if (mode == MMC_HS_400_ES)
606 #define UHS_CAPS (MMC_CAP(UHS_SDR12) | MMC_CAP(UHS_SDR25) | \
607 MMC_CAP(UHS_SDR50) | MMC_CAP(UHS_SDR104) | \
610 static inline bool supports_uhs(uint caps)
612 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
613 return (caps & UHS_CAPS) ? true : false;
620 * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
621 * with mmc_get_mmc_dev().
623 * TODO struct mmc should be in mmc_private but it's hard to fix right now
626 #if !CONFIG_IS_ENABLED(BLK)
627 struct list_head link;
629 const struct mmc_config *cfg; /* provided configuration */
634 bool clk_disable; /* true if the clock can be turned off */
638 enum mmc_voltage signal_voltage;
652 u8 gen_cmd6_time; /* units: 10 ms */
653 u8 part_switch_time; /* units: 10 ms */
655 uint legacy_speed; /* speed for the legacy mode provided by the card */
657 #if CONFIG_IS_ENABLED(MMC_WRITE)
659 uint erase_grp_size; /* in 512-byte sectors */
661 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
662 uint hc_wp_grp_size; /* in 512-byte sectors */
664 #if CONFIG_IS_ENABLED(MMC_WRITE)
665 struct sd_ssr ssr; /* SD status register */
672 #ifndef CONFIG_SPL_BUILD
676 #if !CONFIG_IS_ENABLED(BLK)
677 struct blk_desc block_dev;
679 char op_cond_pending; /* 1 if we are waiting on an op_cond command */
680 char init_in_progress; /* 1 if we have done mmc_start_init() */
681 char preinit; /* start init as early as possible */
683 #if CONFIG_IS_ENABLED(DM_MMC)
684 struct udevice *dev; /* Device for this MMC controller */
685 #if CONFIG_IS_ENABLED(DM_REGULATOR)
686 struct udevice *vmmc_supply; /* Main voltage regulator (Vcc)*/
687 struct udevice *vqmmc_supply; /* IO voltage regulator (Vccq)*/
691 u32 cardtype; /* cardtype read from the MMC */
692 enum mmc_voltage current_voltage;
693 enum bus_mode selected_mode; /* mode currently used */
694 enum bus_mode best_mode; /* best mode is the supported mode with the
695 * highest bandwidth. It may not always be the
696 * operating mode due to limitations when
697 * accessing the boot partitions
702 struct mmc_hwpart_conf {
704 uint enh_start; /* in 512-byte sectors */
705 uint enh_size; /* in 512-byte sectors, if 0 no enh area */
706 unsigned wr_rel_change : 1;
707 unsigned wr_rel_set : 1;
710 uint size; /* in 512-byte sectors */
711 unsigned enhanced : 1;
712 unsigned wr_rel_change : 1;
713 unsigned wr_rel_set : 1;
717 enum mmc_hwpart_conf_mode {
718 MMC_HWPART_CONF_CHECK,
720 MMC_HWPART_CONF_COMPLETE,
723 struct mmc *mmc_create(const struct mmc_config *cfg, void *priv);
726 * mmc_bind() - Set up a new MMC device ready for probing
728 * A child block device is bound with the IF_TYPE_MMC interface type. This
729 * allows the device to be used with CONFIG_BLK
731 * @dev: MMC device to set up
733 * @cfg: MMC configuration
734 * @return 0 if OK, -ve on error
736 int mmc_bind(struct udevice *dev, struct mmc *mmc,
737 const struct mmc_config *cfg);
738 void mmc_destroy(struct mmc *mmc);
741 * mmc_unbind() - Unbind a MMC device's child block device
744 * @return 0 if OK, -ve on error
746 int mmc_unbind(struct udevice *dev);
747 int mmc_initialize(struct bd_info *bis);
748 int mmc_init_device(int num);
749 int mmc_init(struct mmc *mmc);
750 int mmc_send_tuning(struct mmc *mmc, u32 opcode, int *cmd_error);
752 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
753 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
754 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
755 int mmc_deinit(struct mmc *mmc);
759 * mmc_of_parse() - Parse the device tree to get the capabilities of the host
762 * @cfg: MMC configuration
763 * @return 0 if OK, -ve on error
765 int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg);
767 int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
770 * mmc_voltage_to_mv() - Convert a mmc_voltage in mV
772 * @voltage: The mmc_voltage to convert
773 * @return the value in mV if OK, -EINVAL on error (invalid mmc_voltage value)
775 int mmc_voltage_to_mv(enum mmc_voltage voltage);
778 * mmc_set_clock() - change the bus clock
780 * @clock: bus frequency in Hz
781 * @disable: flag indicating if the clock must on or off
782 * @return 0 if OK, -ve on error
784 int mmc_set_clock(struct mmc *mmc, uint clock, bool disable);
786 #define MMC_CLK_ENABLE false
787 #define MMC_CLK_DISABLE true
789 struct mmc *find_mmc_device(int dev_num);
790 int mmc_set_dev(int dev_num);
791 void print_mmc_devices(char separator);
794 * get_mmc_num() - get the total MMC device number
796 * @return 0 if there is no MMC device, else the number of devices
798 int get_mmc_num(void);
799 int mmc_switch_part(struct mmc *mmc, unsigned int part_num);
800 int mmc_hwpart_config(struct mmc *mmc, const struct mmc_hwpart_conf *conf,
801 enum mmc_hwpart_conf_mode mode);
803 #if !CONFIG_IS_ENABLED(DM_MMC)
804 int mmc_getcd(struct mmc *mmc);
805 int board_mmc_getcd(struct mmc *mmc);
806 int mmc_getwp(struct mmc *mmc);
807 int board_mmc_getwp(struct mmc *mmc);
810 int mmc_set_dsr(struct mmc *mmc, u16 val);
811 /* Function to change the size of boot partition and rpmb partitions */
812 int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
813 unsigned long rpmbsize);
814 /* Function to modify the PARTITION_CONFIG field of EXT_CSD */
815 int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access);
816 /* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */
817 int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode);
818 /* Function to modify the RST_n_FUNCTION field of EXT_CSD */
819 int mmc_set_rst_n_function(struct mmc *mmc, u8 enable);
820 /* Functions to read / write the RPMB partition */
821 int mmc_rpmb_set_key(struct mmc *mmc, void *key);
822 int mmc_rpmb_get_counter(struct mmc *mmc, unsigned long *counter);
823 int mmc_rpmb_read(struct mmc *mmc, void *addr, unsigned short blk,
824 unsigned short cnt, unsigned char *key);
825 int mmc_rpmb_write(struct mmc *mmc, void *addr, unsigned short blk,
826 unsigned short cnt, unsigned char *key);
829 * mmc_rpmb_route_frames() - route RPMB data frames
830 * @mmc Pointer to a MMC device struct
831 * @req Request data frames
832 * @reqlen Length of data frames in bytes
833 * @rsp Supplied buffer for response data frames
834 * @rsplen Length of supplied buffer for response data frames
836 * The RPMB data frames are routed to/from some external entity, for
837 * example a Trusted Exectuion Environment in an arm TrustZone protected
838 * secure world. It's expected that it's the external entity who is in
839 * control of the RPMB key.
841 * Returns 0 on success, < 0 on error.
843 int mmc_rpmb_route_frames(struct mmc *mmc, void *req, unsigned long reqlen,
844 void *rsp, unsigned long rsplen);
846 #ifdef CONFIG_CMD_BKOPS_ENABLE
847 int mmc_set_bkops_enable(struct mmc *mmc);
851 * Start device initialization and return immediately; it does not block on
852 * polling OCR (operation condition register) status. Useful for checking
853 * the presence of SD/eMMC when no card detect logic is available.
855 * @param mmc Pointer to a MMC device struct
856 * @return 0 on success, <0 on error.
858 int mmc_get_op_cond(struct mmc *mmc);
861 * Start device initialization and return immediately; it does not block on
862 * polling OCR (operation condition register) status. Then you should call
863 * mmc_init, which would block on polling OCR status and complete the device
866 * @param mmc Pointer to a MMC device struct
867 * @return 0 on success, <0 on error.
869 int mmc_start_init(struct mmc *mmc);
872 * Set preinit flag of mmc device.
874 * This will cause the device to be pre-inited during mmc_initialize(),
875 * which may save boot time if the device is not accessed until later.
876 * Some eMMC devices take 200-300ms to init, but unfortunately they
877 * must be sent a series of commands to even get them to start preparing
880 * @param mmc Pointer to a MMC device struct
881 * @param preinit preinit flag value
883 void mmc_set_preinit(struct mmc *mmc, int preinit);
885 #ifdef CONFIG_MMC_SPI
886 #define mmc_host_is_spi(mmc) ((mmc)->cfg->host_caps & MMC_MODE_SPI)
888 #define mmc_host_is_spi(mmc) 0
891 void board_mmc_power_init(void);
892 int board_mmc_init(struct bd_info *bis);
893 int cpu_mmc_init(struct bd_info *bis);
894 int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr);
895 # ifdef CONFIG_SYS_MMC_ENV_PART
896 extern uint mmc_get_env_part(struct mmc *mmc);
898 int mmc_get_env_dev(void);
900 /* Minimum partition switch timeout in units of 10-milliseconds */
901 #define MMC_MIN_PART_SWITCH_TIME 30 /* 300 ms */
903 /* Set block count limit because of 16 bit register limit on some hardware*/
904 #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT
905 #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535
909 * mmc_get_blk_desc() - Get the block descriptor for an MMC device
912 * @return block device if found, else NULL
914 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc);
917 * mmc_send_ext_csd() - read the extended CSD register
920 * @ext_csd a cache aligned buffer of length MMC_MAX_BLOCK_LEN allocated by
921 * the caller, e.g. using
922 * ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN)
923 * Return: 0 for success
925 int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd);
928 * mmc_boot_wp() - power on write protect boot partitions
930 * The boot partitions are write protected until the next power cycle.
932 * Return: 0 for success
934 int mmc_boot_wp(struct mmc *mmc);
936 static inline enum dma_data_direction mmc_get_dma_dir(struct mmc_data *data)
938 return data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE;