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)
181 #define MMC_STATE_TRANS (4 << 9)
183 #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */
184 #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */
185 #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */
186 #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */
187 #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */
188 #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */
189 #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */
190 #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */
191 #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */
192 #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */
193 #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */
194 #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */
195 #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */
196 #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */
197 #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */
198 #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */
199 #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */
201 #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */
202 #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte
203 addressed by index which are
205 #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte
206 addressed by index, which are
208 #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */
210 #define SD_SWITCH_CHECK 0
211 #define SD_SWITCH_SWITCH 1
216 #define EXT_CSD_ENH_START_ADDR 136 /* R/W */
217 #define EXT_CSD_ENH_SIZE_MULT 140 /* R/W */
218 #define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
219 #define EXT_CSD_PARTITION_SETTING 155 /* R/W */
220 #define EXT_CSD_PARTITIONS_ATTRIBUTE 156 /* R/W */
221 #define EXT_CSD_MAX_ENH_SIZE_MULT 157 /* R */
222 #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */
223 #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
224 #define EXT_CSD_BKOPS_EN 163 /* R/W & R/W/E */
225 #define EXT_CSD_WR_REL_PARAM 166 /* R */
226 #define EXT_CSD_WR_REL_SET 167 /* R/W */
227 #define EXT_CSD_RPMB_MULT 168 /* RO */
228 #define EXT_CSD_USER_WP 171 /* R/W & R/W/C_P & R/W/E_P */
229 #define EXT_CSD_BOOT_WP 173 /* R/W & R/W/C_P */
230 #define EXT_CSD_BOOT_WP_STATUS 174 /* R */
231 #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
232 #define EXT_CSD_BOOT_BUS_WIDTH 177
233 #define EXT_CSD_PART_CONF 179 /* R/W */
234 #define EXT_CSD_BUS_WIDTH 183 /* R/W */
235 #define EXT_CSD_STROBE_SUPPORT 184 /* R/W */
236 #define EXT_CSD_HS_TIMING 185 /* R/W */
237 #define EXT_CSD_REV 192 /* RO */
238 #define EXT_CSD_CARD_TYPE 196 /* RO */
239 #define EXT_CSD_PART_SWITCH_TIME 199 /* RO */
240 #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
241 #define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */
242 #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */
243 #define EXT_CSD_BOOT_MULT 226 /* RO */
244 #define EXT_CSD_SEC_FEATURE 231 /* RO */
245 #define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */
246 #define EXT_CSD_BKOPS_SUPPORT 502 /* RO */
249 * EXT_CSD field definitions
252 #define EXT_CSD_CMD_SET_NORMAL (1 << 0)
253 #define EXT_CSD_CMD_SET_SECURE (1 << 1)
254 #define EXT_CSD_CMD_SET_CPSECURE (1 << 2)
256 #define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */
257 #define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */
258 #define EXT_CSD_CARD_TYPE_DDR_1_8V (1 << 2)
259 #define EXT_CSD_CARD_TYPE_DDR_1_2V (1 << 3)
260 #define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \
261 | EXT_CSD_CARD_TYPE_DDR_1_2V)
263 #define EXT_CSD_CARD_TYPE_HS200_1_8V BIT(4) /* Card can run at 200MHz */
264 /* SDR mode @1.8V I/O */
265 #define EXT_CSD_CARD_TYPE_HS200_1_2V BIT(5) /* Card can run at 200MHz */
266 /* SDR mode @1.2V I/O */
267 #define EXT_CSD_CARD_TYPE_HS200 (EXT_CSD_CARD_TYPE_HS200_1_8V | \
268 EXT_CSD_CARD_TYPE_HS200_1_2V)
269 #define EXT_CSD_CARD_TYPE_HS400_1_8V BIT(6)
270 #define EXT_CSD_CARD_TYPE_HS400_1_2V BIT(7)
271 #define EXT_CSD_CARD_TYPE_HS400 (EXT_CSD_CARD_TYPE_HS400_1_8V | \
272 EXT_CSD_CARD_TYPE_HS400_1_2V)
274 #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
275 #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
276 #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
277 #define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */
278 #define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */
279 #define EXT_CSD_DDR_FLAG BIT(2) /* Flag for DDR mode */
280 #define EXT_CSD_BUS_WIDTH_STROBE BIT(7) /* Enhanced strobe mode */
282 #define EXT_CSD_TIMING_LEGACY 0 /* no high speed */
283 #define EXT_CSD_TIMING_HS 1 /* HS */
284 #define EXT_CSD_TIMING_HS200 2 /* HS200 */
285 #define EXT_CSD_TIMING_HS400 3 /* HS400 */
286 #define EXT_CSD_DRV_STR_SHIFT 4 /* Driver Strength shift */
288 #define EXT_CSD_BOOT_ACK_ENABLE (1 << 6)
289 #define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3)
290 #define EXT_CSD_PARTITION_ACCESS_ENABLE (1 << 0)
291 #define EXT_CSD_PARTITION_ACCESS_DISABLE (0 << 0)
293 #define EXT_CSD_BOOT_ACK(x) (x << 6)
294 #define EXT_CSD_BOOT_PART_NUM(x) (x << 3)
295 #define EXT_CSD_PARTITION_ACCESS(x) (x << 0)
297 #define EXT_CSD_EXTRACT_BOOT_ACK(x) (((x) >> 6) & 0x1)
298 #define EXT_CSD_EXTRACT_BOOT_PART(x) (((x) >> 3) & 0x7)
299 #define EXT_CSD_EXTRACT_PARTITION_ACCESS(x) ((x) & 0x7)
301 #define EXT_CSD_BOOT_BUS_WIDTH_MODE(x) (x << 3)
302 #define EXT_CSD_BOOT_BUS_WIDTH_RESET(x) (x << 2)
303 #define EXT_CSD_BOOT_BUS_WIDTH_WIDTH(x) (x)
305 #define EXT_CSD_PARTITION_SETTING_COMPLETED (1 << 0)
307 #define EXT_CSD_ENH_USR (1 << 0) /* user data area is enhanced */
308 #define EXT_CSD_ENH_GP(x) (1 << ((x)+1)) /* GP part (x+1) is enhanced */
310 #define EXT_CSD_HS_CTRL_REL (1 << 0) /* host controlled WR_REL_SET */
312 #define EXT_CSD_BOOT_WP_B_SEC_WP_SEL (0x80) /* enable partition selector */
313 #define EXT_CSD_BOOT_WP_B_PWR_WP_SEC_SEL (0x02) /* partition selector to protect */
314 #define EXT_CSD_BOOT_WP_B_PWR_WP_EN (0x01) /* power-on write-protect */
316 #define EXT_CSD_WR_DATA_REL_USR (1 << 0) /* user data area WR_REL */
317 #define EXT_CSD_WR_DATA_REL_GP(x) (1 << ((x)+1)) /* GP part (x+1) WR_REL */
319 #define EXT_CSD_SEC_FEATURE_TRIM_EN (1 << 4) /* Support secure & insecure trim */
321 #define R1_ILLEGAL_COMMAND (1 << 22)
322 #define R1_APP_CMD (1 << 5)
324 #define MMC_RSP_PRESENT (1 << 0)
325 #define MMC_RSP_136 (1 << 1) /* 136 bit response */
326 #define MMC_RSP_CRC (1 << 2) /* expect valid crc */
327 #define MMC_RSP_BUSY (1 << 3) /* card may send busy */
328 #define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
330 #define MMC_RSP_NONE (0)
331 #define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
332 #define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \
334 #define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
335 #define MMC_RSP_R3 (MMC_RSP_PRESENT)
336 #define MMC_RSP_R4 (MMC_RSP_PRESENT)
337 #define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
338 #define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
339 #define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
341 #define MMCPART_NOAVAILABLE (0xff)
342 #define PART_ACCESS_MASK (0x7)
343 #define PART_SUPPORT (0x1)
344 #define ENHNCD_SUPPORT (0x2)
345 #define PART_ENH_ATTRIB (0x1f)
347 #define MMC_QUIRK_RETRY_SEND_CID BIT(0)
348 #define MMC_QUIRK_RETRY_SET_BLOCKLEN BIT(1)
349 #define MMC_QUIRK_RETRY_APP_CMD BIT(2)
352 MMC_SIGNAL_VOLTAGE_000
= 0,
353 MMC_SIGNAL_VOLTAGE_120
= 1,
354 MMC_SIGNAL_VOLTAGE_180
= 2,
355 MMC_SIGNAL_VOLTAGE_330
= 4,
358 #define MMC_ALL_SIGNAL_VOLTAGE (MMC_SIGNAL_VOLTAGE_120 |\
359 MMC_SIGNAL_VOLTAGE_180 |\
360 MMC_SIGNAL_VOLTAGE_330)
362 /* Maximum block size for MMC */
363 #define MMC_MAX_BLOCK_LEN 512
365 /* The number of MMC physical partitions. These consist of:
366 * boot partitions (2), general purpose partitions (4) in MMC v4.4.
368 #define MMC_NUM_BOOT_PARTITION 2
369 #define MMC_PART_RPMB 3 /* RPMB partition number */
371 /* timing specification used */
372 #define MMC_TIMING_LEGACY 0
373 #define MMC_TIMING_MMC_HS 1
374 #define MMC_TIMING_SD_HS 2
375 #define MMC_TIMING_UHS_SDR12 3
376 #define MMC_TIMING_UHS_SDR25 4
377 #define MMC_TIMING_UHS_SDR50 5
378 #define MMC_TIMING_UHS_SDR104 6
379 #define MMC_TIMING_UHS_DDR50 7
380 #define MMC_TIMING_MMC_DDR52 8
381 #define MMC_TIMING_MMC_HS200 9
382 #define MMC_TIMING_MMC_HS400 10
384 /* Driver model support */
387 * struct mmc_uclass_priv - Holds information about a device used by the uclass
389 struct mmc_uclass_priv
{
394 * mmc_get_mmc_dev() - get the MMC struct pointer for a device
396 * Provided that the device is already probed and ready for use, this value
400 * Return: associated mmc struct pointer if available, else NULL
402 struct mmc
*mmc_get_mmc_dev(const struct udevice
*dev
);
404 /* End of driver model support */
425 const char *src
; /* src buffers don't get written to */
435 #if CONFIG_IS_ENABLED(DM_MMC)
438 * deferred_probe() - Some configurations that need to be deferred
439 * to just before enumerating the device
441 * @dev: Device to init
442 * @return 0 if Ok, -ve if error
444 int (*deferred_probe
)(struct udevice
*dev
);
446 * reinit() - Re-initialization to clear old configuration for
449 * @dev: Device to reinit
450 * @return 0 if Ok, -ve if error
452 int (*reinit
)(struct udevice
*dev
);
454 * send_cmd() - Send a command to the MMC device
456 * @dev: Device to receive the command
457 * @cmd: Command to send
458 * @data: Additional data to send/receive
459 * @return 0 if OK, -ve on error
461 int (*send_cmd
)(struct udevice
*dev
, struct mmc_cmd
*cmd
,
462 struct mmc_data
*data
);
465 * set_ios() - Set the I/O speed/width for an MMC device
467 * @dev: Device to update
468 * @return 0 if OK, -ve on error
470 int (*set_ios
)(struct udevice
*dev
);
473 * get_cd() - See whether a card is present
475 * @dev: Device to check
476 * @return 0 if not present, 1 if present, -ve on error
478 int (*get_cd
)(struct udevice
*dev
);
481 * get_wp() - See whether a card has write-protect enabled
483 * @dev: Device to check
484 * @return 0 if write-enabled, 1 if write-protected, -ve on error
486 int (*get_wp
)(struct udevice
*dev
);
488 #ifdef MMC_SUPPORTS_TUNING
490 * execute_tuning() - Start the tuning process
492 * @dev: Device to start the tuning
493 * @opcode: Command opcode to send
494 * @return 0 if OK, -ve on error
496 int (*execute_tuning
)(struct udevice
*dev
, uint opcode
);
500 * wait_dat0() - wait until dat0 is in the target state
501 * (CLK must be running during the wait)
503 * @dev: Device to check
504 * @state: target state
505 * @timeout_us: timeout in us
506 * @return 0 if dat0 is in the target state, -ve on error
508 int (*wait_dat0
)(struct udevice
*dev
, int state
, int timeout_us
);
510 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
511 /* set_enhanced_strobe() - set HS400 enhanced strobe */
512 int (*set_enhanced_strobe
)(struct udevice
*dev
);
516 * host_power_cycle - host specific tasks in power cycle sequence
517 * Called between mmc_power_off() and
520 * @dev: Device to check
521 * @return 0 if not present, 1 if present, -ve on error
523 int (*host_power_cycle
)(struct udevice
*dev
);
526 * get_b_max - get maximum length of single transfer
527 * Called before reading blocks from the card,
528 * useful for system which have e.g. DMA limits
529 * on various memory ranges.
531 * @dev: Device to check
532 * @dst: Destination buffer in memory
533 * @blkcnt: Total number of blocks in this transfer
534 * @return maximum number of blocks for this transfer
536 int (*get_b_max
)(struct udevice
*dev
, void *dst
, lbaint_t blkcnt
);
539 * hs400_prepare_ddr - prepare to switch to DDR mode
541 * @dev: Device to check
542 * @return 0 if success, -ve on error
544 int (*hs400_prepare_ddr
)(struct udevice
*dev
);
547 #define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops)
549 /* Transition functions for compatibility */
550 int mmc_set_ios(struct mmc
*mmc
);
551 int mmc_getcd(struct mmc
*mmc
);
552 int mmc_getwp(struct mmc
*mmc
);
553 int mmc_execute_tuning(struct mmc
*mmc
, uint opcode
);
554 int mmc_wait_dat0(struct mmc
*mmc
, int state
, int timeout_us
);
555 int mmc_set_enhanced_strobe(struct mmc
*mmc
);
556 int mmc_host_power_cycle(struct mmc
*mmc
);
557 int mmc_deferred_probe(struct mmc
*mmc
);
558 int mmc_reinit(struct mmc
*mmc
);
559 int mmc_get_b_max(struct mmc
*mmc
, void *dst
, lbaint_t blkcnt
);
560 int mmc_hs400_prepare_ddr(struct mmc
*mmc
);
561 int mmc_send_stop_transmission(struct mmc
*mmc
, bool write
);
565 int (*send_cmd
)(struct mmc
*mmc
,
566 struct mmc_cmd
*cmd
, struct mmc_data
*data
);
567 int (*set_ios
)(struct mmc
*mmc
);
568 int (*init
)(struct mmc
*mmc
);
569 int (*getcd
)(struct mmc
*mmc
);
570 int (*getwp
)(struct mmc
*mmc
);
571 int (*host_power_cycle
)(struct mmc
*mmc
);
572 int (*get_b_max
)(struct mmc
*mmc
, void *dst
, lbaint_t blkcnt
);
573 int (*wait_dat0
)(struct mmc
*mmc
, int state
, int timeout_us
);
576 static inline int mmc_hs400_prepare_ddr(struct mmc
*mmc
)
584 #if !CONFIG_IS_ENABLED(DM_MMC)
585 const struct mmc_ops
*ops
;
592 unsigned char part_type
;
593 #ifdef CONFIG_MMC_PWRSEQ
594 struct udevice
*pwr_dev
;
599 unsigned int au
; /* In sectors */
600 unsigned int erase_timeout
; /* In milliseconds */
601 unsigned int erase_offset
; /* In milliseconds */
621 const char *mmc_mode_name(enum bus_mode mode
);
622 void mmc_dump_capabilities(const char *text
, uint caps
);
624 static inline bool mmc_is_mode_ddr(enum bus_mode mode
)
626 if (mode
== MMC_DDR_52
)
628 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
629 else if (mode
== UHS_DDR50
)
632 #if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
633 else if (mode
== MMC_HS_400
)
636 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
637 else if (mode
== MMC_HS_400_ES
)
644 #define UHS_CAPS (MMC_CAP(UHS_SDR12) | MMC_CAP(UHS_SDR25) | \
645 MMC_CAP(UHS_SDR50) | MMC_CAP(UHS_SDR104) | \
648 static inline bool supports_uhs(uint caps
)
650 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
651 return (caps
& UHS_CAPS
) ? true : false;
658 * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
659 * with mmc_get_mmc_dev().
661 * TODO struct mmc should be in mmc_private but it's hard to fix right now
664 #if !CONFIG_IS_ENABLED(BLK)
665 struct list_head link
;
667 const struct mmc_config
*cfg
; /* provided configuration */
672 bool clk_disable
; /* true if the clock can be turned off */
676 enum mmc_voltage signal_voltage
;
690 u8 gen_cmd6_time
; /* units: 10 ms */
691 u8 part_switch_time
; /* units: 10 ms */
693 uint legacy_speed
; /* speed for the legacy mode provided by the card */
696 #if CONFIG_IS_ENABLED(MMC_WRITE)
698 uint erase_grp_size
; /* in 512-byte sectors */
700 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
701 uint hc_wp_grp_size
; /* in 512-byte sectors */
703 #if CONFIG_IS_ENABLED(MMC_WRITE)
704 struct sd_ssr ssr
; /* SD status register */
711 #ifndef CONFIG_SPL_BUILD
715 #if !CONFIG_IS_ENABLED(BLK)
716 struct blk_desc block_dev
;
718 char op_cond_pending
; /* 1 if we are waiting on an op_cond command */
719 char init_in_progress
; /* 1 if we have done mmc_start_init() */
720 char preinit
; /* start init as early as possible */
722 #if CONFIG_IS_ENABLED(DM_MMC)
723 struct udevice
*dev
; /* Device for this MMC controller */
724 #if CONFIG_IS_ENABLED(DM_REGULATOR)
725 struct udevice
*vmmc_supply
; /* Main voltage regulator (Vcc)*/
726 struct udevice
*vqmmc_supply
; /* IO voltage regulator (Vccq)*/
730 u32 cardtype
; /* cardtype read from the MMC */
731 enum mmc_voltage current_voltage
;
732 enum bus_mode selected_mode
; /* mode currently used */
733 enum bus_mode best_mode
; /* best mode is the supported mode with the
734 * highest bandwidth. It may not always be the
735 * operating mode due to limitations when
736 * accessing the boot partitions
741 enum bus_mode user_speed_mode
; /* input speed mode from user */
744 #if CONFIG_IS_ENABLED(DM_MMC)
745 #define mmc_to_dev(_mmc) _mmc->dev
747 #define mmc_to_dev(_mmc) NULL
750 struct mmc_hwpart_conf
{
752 uint enh_start
; /* in 512-byte sectors */
753 uint enh_size
; /* in 512-byte sectors, if 0 no enh area */
754 unsigned wr_rel_change
: 1;
755 unsigned wr_rel_set
: 1;
758 uint size
; /* in 512-byte sectors */
759 unsigned enhanced
: 1;
760 unsigned wr_rel_change
: 1;
761 unsigned wr_rel_set
: 1;
765 enum mmc_hwpart_conf_mode
{
766 MMC_HWPART_CONF_CHECK
,
768 MMC_HWPART_CONF_COMPLETE
,
771 struct mmc
*mmc_create(const struct mmc_config
*cfg
, void *priv
);
774 * mmc_bind() - Set up a new MMC device ready for probing
776 * A child block device is bound with the UCLASS_MMC interface type. This
777 * allows the device to be used with CONFIG_BLK
779 * @dev: MMC device to set up
781 * @cfg: MMC configuration
782 * Return: 0 if OK, -ve on error
784 int mmc_bind(struct udevice
*dev
, struct mmc
*mmc
,
785 const struct mmc_config
*cfg
);
786 void mmc_destroy(struct mmc
*mmc
);
789 * mmc_unbind() - Unbind a MMC device's child block device
792 * Return: 0 if OK, -ve on error
794 int mmc_unbind(struct udevice
*dev
);
795 int mmc_initialize(struct bd_info
*bis
);
796 int mmc_init_device(int num
);
797 int mmc_init(struct mmc
*mmc
);
798 int mmc_send_tuning(struct mmc
*mmc
, u32 opcode
, int *cmd_error
);
799 int mmc_send_cmd(struct mmc
*mmc
, struct mmc_cmd
*cmd
, struct mmc_data
*data
);
800 int mmc_deinit(struct mmc
*mmc
);
803 * mmc_of_parse() - Parse the device tree to get the capabilities of the host
806 * @cfg: MMC configuration
807 * Return: 0 if OK, -ve on error
809 int mmc_of_parse(struct udevice
*dev
, struct mmc_config
*cfg
);
811 #ifdef CONFIG_MMC_PWRSEQ
813 * mmc_pwrseq_get_power() - get a power device from device tree
816 * @cfg: MMC configuration
817 * Return: 0 if OK, -ve on error
819 int mmc_pwrseq_get_power(struct udevice
*dev
, struct mmc_config
*cfg
);
822 int mmc_read(struct mmc
*mmc
, u64 src
, uchar
*dst
, int size
);
825 * mmc_voltage_to_mv() - Convert a mmc_voltage in mV
827 * @voltage: The mmc_voltage to convert
828 * Return: the value in mV if OK, -EINVAL on error (invalid mmc_voltage value)
830 int mmc_voltage_to_mv(enum mmc_voltage voltage
);
833 * mmc_set_clock() - change the bus clock
835 * @clock: bus frequency in Hz
836 * @disable: flag indicating if the clock must on or off
837 * Return: 0 if OK, -ve on error
839 int mmc_set_clock(struct mmc
*mmc
, uint clock
, bool disable
);
841 #define MMC_CLK_ENABLE false
842 #define MMC_CLK_DISABLE true
844 struct mmc
*find_mmc_device(int dev_num
);
845 int mmc_set_dev(int dev_num
);
846 void print_mmc_devices(char separator
);
849 * get_mmc_num() - get the total MMC device number
851 * Return: 0 if there is no MMC device, else the number of devices
853 int get_mmc_num(void);
854 int mmc_switch_part(struct mmc
*mmc
, unsigned int part_num
);
855 int mmc_hwpart_config(struct mmc
*mmc
, const struct mmc_hwpart_conf
*conf
,
856 enum mmc_hwpart_conf_mode mode
);
858 #if !CONFIG_IS_ENABLED(DM_MMC)
859 int mmc_getcd(struct mmc
*mmc
);
860 int board_mmc_getcd(struct mmc
*mmc
);
861 int mmc_getwp(struct mmc
*mmc
);
862 int board_mmc_getwp(struct mmc
*mmc
);
865 int mmc_set_dsr(struct mmc
*mmc
, u16 val
);
866 /* Function to change the size of boot partition and rpmb partitions */
867 int mmc_boot_partition_size_change(struct mmc
*mmc
, unsigned long bootsize
,
868 unsigned long rpmbsize
);
869 /* Function to modify the PARTITION_CONFIG field of EXT_CSD */
870 int mmc_set_part_conf(struct mmc
*mmc
, u8 ack
, u8 part_num
, u8 access
);
871 /* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */
872 int mmc_set_boot_bus_width(struct mmc
*mmc
, u8 width
, u8 reset
, u8 mode
);
873 /* Function to modify the RST_n_FUNCTION field of EXT_CSD */
874 int mmc_set_rst_n_function(struct mmc
*mmc
, u8 enable
);
875 /* Functions to read / write the RPMB partition */
876 int mmc_rpmb_set_key(struct mmc
*mmc
, void *key
);
877 int mmc_rpmb_get_counter(struct mmc
*mmc
, unsigned long *counter
);
878 int mmc_rpmb_read(struct mmc
*mmc
, void *addr
, unsigned short blk
,
879 unsigned short cnt
, unsigned char *key
);
880 int mmc_rpmb_write(struct mmc
*mmc
, void *addr
, unsigned short blk
,
881 unsigned short cnt
, unsigned char *key
);
884 * mmc_rpmb_route_frames() - route RPMB data frames
885 * @mmc Pointer to a MMC device struct
886 * @req Request data frames
887 * @reqlen Length of data frames in bytes
888 * @rsp Supplied buffer for response data frames
889 * @rsplen Length of supplied buffer for response data frames
891 * The RPMB data frames are routed to/from some external entity, for
892 * example a Trusted Exectuion Environment in an arm TrustZone protected
893 * secure world. It's expected that it's the external entity who is in
894 * control of the RPMB key.
896 * Returns 0 on success, < 0 on error.
898 int mmc_rpmb_route_frames(struct mmc
*mmc
, void *req
, unsigned long reqlen
,
899 void *rsp
, unsigned long rsplen
);
902 * mmc_set_bkops_enable() - enable background operations
903 * @param mmc Pointer to a MMC device struct
904 * @param autobkops Enable automatic bkops, not manual bkops
905 * @param enable Enable bkops, not disable
907 * Enable or disable automatic or manual background operation of the eMMC.
909 * Return: 0 on success, <0 on error.
911 int mmc_set_bkops_enable(struct mmc
*mmc
, bool autobkops
, bool enable
);
914 * Start device initialization and return immediately; it does not block on
915 * polling OCR (operation condition register) status. Useful for checking
916 * the presence of SD/eMMC when no card detect logic is available.
918 * @param mmc Pointer to a MMC device struct
919 * @param quiet Be quiet, do not print error messages when card is not detected.
920 * Return: 0 on success, <0 on error.
922 int mmc_get_op_cond(struct mmc
*mmc
, bool quiet
);
925 * Start device initialization and return immediately; it does not block on
926 * polling OCR (operation condition register) status. Then you should call
927 * mmc_init, which would block on polling OCR status and complete the device
930 * @param mmc Pointer to a MMC device struct
931 * Return: 0 on success, <0 on error.
933 int mmc_start_init(struct mmc
*mmc
);
936 * Set preinit flag of mmc device.
938 * This will cause the device to be pre-inited during mmc_initialize(),
939 * which may save boot time if the device is not accessed until later.
940 * Some eMMC devices take 200-300ms to init, but unfortunately they
941 * must be sent a series of commands to even get them to start preparing
944 * @param mmc Pointer to a MMC device struct
945 * @param preinit preinit flag value
947 void mmc_set_preinit(struct mmc
*mmc
, int preinit
);
949 #ifdef CONFIG_MMC_SPI
950 #define mmc_host_is_spi(mmc) ((mmc)->cfg->host_caps & MMC_MODE_SPI)
952 #define mmc_host_is_spi(mmc) 0
955 #define mmc_dev(x) ((x)->dev)
957 void board_mmc_power_init(void);
958 int board_mmc_init(struct bd_info
*bis
);
959 int cpu_mmc_init(struct bd_info
*bis
);
960 int mmc_get_env_addr(struct mmc
*mmc
, int copy
, u32
*env_addr
);
961 # ifdef CONFIG_SYS_MMC_ENV_PART
962 extern uint
mmc_get_env_part(struct mmc
*mmc
);
964 int mmc_get_env_dev(void);
966 /* Minimum partition switch timeout in units of 10-milliseconds */
967 #define MMC_MIN_PART_SWITCH_TIME 30 /* 300 ms */
970 * mmc_get_blk_desc() - Get the block descriptor for an MMC device
973 * Return: block descriptor if found, else NULL
975 struct blk_desc
*mmc_get_blk_desc(struct mmc
*mmc
);
978 * mmc_get_blk() - Get the block device for an MMC device
981 * @blkp: Returns pointer to probed block device on sucesss
983 * Return: 0 on success, -ve on error
985 int mmc_get_blk(struct udevice
*dev
, struct udevice
**blkp
);
988 * mmc_send_ext_csd() - read the extended CSD register
991 * @ext_csd a cache aligned buffer of length MMC_MAX_BLOCK_LEN allocated by
992 * the caller, e.g. using
993 * ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN)
994 * Return: 0 for success
996 int mmc_send_ext_csd(struct mmc
*mmc
, u8
*ext_csd
);
999 * mmc_boot_wp() - power on write protect boot partitions
1001 * The boot partitions are write protected until the next power cycle.
1003 * Return: 0 for success
1005 int mmc_boot_wp(struct mmc
*mmc
);
1008 * mmc_boot_wp_single_partition() - set write protection to a boot partition.
1010 * This function sets a single boot partition to protect and leave the
1011 * other partition writable.
1013 * @param mmc the mmc device.
1014 * @param partition 0 - first boot partition, 1 - second boot partition.
1015 * @return 0 for success
1017 int mmc_boot_wp_single_partition(struct mmc
*mmc
, int partition
);
1019 static inline enum dma_data_direction
mmc_get_dma_dir(struct mmc_data
*data
)
1021 return data
->flags
& MMC_DATA_WRITE
? DMA_TO_DEVICE
: DMA_FROM_DEVICE
;
1024 #endif /* _MMC_H_ */