4  * SPDX-License-Identifier: Apache-2.0
25 	scr->flags = 0U;  in sdmmc_decode_scr()
26 	scr->scr_structure = (uint8_t)((raw_scr[0U] & 0xF0000000U) >> 28U);  in sdmmc_decode_scr()
27 	scr->sd_spec = (uint8_t)((raw_scr[0U] & 0xF000000U) >> 24U);  in sdmmc_decode_scr()
29 		scr->flags |= SD_SCR_DATA_STATUS_AFTER_ERASE;  in sdmmc_decode_scr()
31 	scr->sd_sec = (uint8_t)((raw_scr[0U] & 0x700000U) >> 20U);  in sdmmc_decode_scr()
32 	scr->sd_width = (uint8_t)((raw_scr[0U] & 0xF0000U) >> 16U);  in sdmmc_decode_scr()
34 		scr->flags |= SD_SCR_SPEC3;  in sdmmc_decode_scr()
36 	scr->sd_ext_sec = (uint8_t)((raw_scr[0U] & 0x7800U) >> 10U);  in sdmmc_decode_scr()
37 	scr->cmd_support = (uint8_t)(raw_scr[0U] & 0x3U);  in sdmmc_decode_scr()
38 	scr->rsvd = raw_scr[1U];  in sdmmc_decode_scr()
40 	switch (scr->sd_spec) {  in sdmmc_decode_scr()
49 		if (scr->flags & SD_SCR_SPEC3) {  in sdmmc_decode_scr()
71 	struct sdhc_command cmd;  in sdmmc_spi_send_ocr()  local
74 	cmd.opcode = SD_SPI_READ_OCR;  in sdmmc_spi_send_ocr()
75 	cmd.arg = arg;  in sdmmc_spi_send_ocr()
76 	cmd.response_type = SD_SPI_RSP_TYPE_R3;  in sdmmc_spi_send_ocr()
77 	cmd.timeout_ms = CONFIG_SD_CMD_TIMEOUT;  in sdmmc_spi_send_ocr()
78 	cmd.retries = CONFIG_SD_CMD_RETRIES;  in sdmmc_spi_send_ocr()
80 	ret = sdhc_request(card->sdhc, &cmd, NULL);  in sdmmc_spi_send_ocr()
87 	card->ocr = cmd.response[1];  in sdmmc_spi_send_ocr()
88 	if (card->ocr == 0) {  in sdmmc_spi_send_ocr()
90 		return -ENOTSUP;  in sdmmc_spi_send_ocr()
99 	struct sdhc_command cmd;  in sdmmc_send_ocr()  local
103 	cmd.opcode = SD_APP_SEND_OP_COND;  in sdmmc_send_ocr()
104 	cmd.arg = ocr;  in sdmmc_send_ocr()
105 	cmd.response_type = (SD_RSP_TYPE_R3 | SD_SPI_RSP_TYPE_R1);  in sdmmc_send_ocr()
106 	cmd.timeout_ms = CONFIG_SD_CMD_TIMEOUT;  in sdmmc_send_ocr()
107 	cmd.retries = CONFIG_SD_CMD_RETRIES;  in sdmmc_send_ocr()
118 		ret = sdhc_request(card->sdhc, &cmd, NULL);  in sdmmc_send_ocr()
131 		if (card->host_props.is_spi) {  in sdmmc_send_ocr()
132 			if (!(cmd.response[0] & SD_SPI_R1IDLE_STATE)) {  in sdmmc_send_ocr()
136 			if ((cmd.response[0U] & SD_OCR_PWR_BUSY_FLAG)) {  in sdmmc_send_ocr()
145 		return -ETIMEDOUT;  in sdmmc_send_ocr()
148 	if (!card->host_props.is_spi) {  in sdmmc_send_ocr()
150 		card->ocr = cmd.response[0U];  in sdmmc_send_ocr()
158 	struct sdhc_command cmd = {0};  in sdmmc_read_scr()  local
164 	uint32_t *scr = (uint32_t *)card->card_buffer;  in sdmmc_read_scr()
167 	ret = sdmmc_app_command(card, card->relative_addr);  in sdmmc_read_scr()
173 	cmd.opcode = SD_APP_SEND_SCR;  in sdmmc_read_scr()
174 	cmd.arg = 0;  in sdmmc_read_scr()
175 	cmd.response_type = (SD_RSP_TYPE_R1 | SD_SPI_RSP_TYPE_R1);  in sdmmc_read_scr()
176 	cmd.timeout_ms = CONFIG_SD_CMD_TIMEOUT;  in sdmmc_read_scr()
177 	cmd.retries = CONFIG_SD_CMD_RETRIES;  in sdmmc_read_scr()
184 	ret = sdhc_request(card->sdhc, &cmd, &data);  in sdmmc_read_scr()
192 	sdmmc_decode_scr(&card_scr, raw_scr, &card->sd_version);  in sdmmc_read_scr()
193 	LOG_DBG("SD reports specification version %d", card->sd_version);  in sdmmc_read_scr()
196 		card->flags |= SD_4BITS_WIDTH;  in sdmmc_read_scr()
200 		card->flags |= SD_SPEED_CLASS_CONTROL_FLAG;  in sdmmc_read_scr()
202 	/* Check for set block count (CMD 23) support */  in sdmmc_read_scr()
204 		card->flags |= SD_CMD23_FLAG;  in sdmmc_read_scr()
212 	struct sdhc_command cmd = {0};  in sdmmc_set_blocklen()  local
214 	cmd.opcode = SD_SET_BLOCK_SIZE;  in sdmmc_set_blocklen()
215 	cmd.arg = block_len;  in sdmmc_set_blocklen()
216 	cmd.response_type = (SD_RSP_TYPE_R1 | SD_SPI_RSP_TYPE_R1);  in sdmmc_set_blocklen()
217 	cmd.timeout_ms = CONFIG_SD_CMD_TIMEOUT;  in sdmmc_set_blocklen()
218 	cmd.retries = CONFIG_SD_CMD_RETRIES;  in sdmmc_set_blocklen()
220 	return sdhc_request(card->sdhc, &cmd, NULL);  in sdmmc_set_blocklen()
229 	struct sdhc_command cmd = {0};  in sdmmc_set_bus_width()  local
237 	ret = sdmmc_app_command(card, card->relative_addr);  in sdmmc_set_bus_width()
243 	cmd.opcode = SD_APP_SET_BUS_WIDTH;  in sdmmc_set_bus_width()
244 	cmd.response_type = SD_RSP_TYPE_R1;  in sdmmc_set_bus_width()
245 	cmd.timeout_ms = CONFIG_SD_CMD_TIMEOUT;  in sdmmc_set_bus_width()
246 	cmd.retries = CONFIG_SD_CMD_RETRIES;  in sdmmc_set_bus_width()
250 		cmd.arg = 0U;  in sdmmc_set_bus_width()
253 		cmd.arg = 2U;  in sdmmc_set_bus_width()
256 		return -ENOTSUP;  in sdmmc_set_bus_width()
259 	ret = sdhc_request(card->sdhc, &cmd, NULL);  in sdmmc_set_bus_width()
264 	ret = sd_check_response(&cmd);  in sdmmc_set_bus_width()
266 		LOG_DBG("ACMD6 reports error, response 0x%x", cmd.response[0U]);  in sdmmc_set_bus_width()
270 	card->bus_io.bus_width = width;  in sdmmc_set_bus_width()
271 	ret = sdhc_set_io(card->sdhc, &card->bus_io);  in sdmmc_set_bus_width()
280  * See table 4-32 in SD physical specification for argument details.
288 	struct sdhc_command cmd = {0};  in sdmmc_switch()  local
291 	cmd.opcode = SD_SWITCH;  in sdmmc_switch()
292 	cmd.arg = ((mode & 0x1) << 31) | 0x00FFFFFF;  in sdmmc_switch()
293 	cmd.arg &= ~(0xFU << (group * 4));  in sdmmc_switch()
294 	cmd.arg |= (value & 0xF) << (group * 4);  in sdmmc_switch()
295 	cmd.response_type = (SD_RSP_TYPE_R1 | SD_SPI_RSP_TYPE_R1);  in sdmmc_switch()
296 	cmd.timeout_ms = CONFIG_SD_CMD_TIMEOUT;  in sdmmc_switch()
297 	cmd.retries = CONFIG_SD_CMD_RETRIES;  in sdmmc_switch()
304 	return sdhc_request(card->sdhc, &cmd, &data);  in sdmmc_switch()
312 	if (card->sd_version < SD_SPEC_VER1_1) {  in sdmmc_read_switch()
317 	/* Use card internal buffer to read 64 byte switch data */  in sdmmc_read_switch()
318 	status = card->card_buffer;  in sdmmc_read_switch()
320 	 * Setting switch to zero will read card's support values,  in sdmmc_read_switch()
329 	 * See table 4-11 and 4.3.10.4 of physical layer specification for  in sdmmc_read_switch()
331 	 * read bits 400-408.  in sdmmc_read_switch()
337 		card->switch_caps.hs_max_dtr = HS_MAX_DTR;  in sdmmc_read_switch()
339 		card->switch_caps.hs_max_dtr = HS_UNSUPPORTED;  in sdmmc_read_switch()
343 		card->switch_caps.uhs_max_dtr = UHS_SDR104_MAX_DTR;  in sdmmc_read_switch()
345 		card->switch_caps.uhs_max_dtr = UHS_DDR50_MAX_DTR;  in sdmmc_read_switch()
347 		card->switch_caps.uhs_max_dtr = UHS_SDR50_MAX_DTR;  in sdmmc_read_switch()
349 		card->switch_caps.uhs_max_dtr = UHS_SDR25_MAX_DTR;  in sdmmc_read_switch()
351 		card->switch_caps.uhs_max_dtr = UHS_SDR12_MAX_DTR;  in sdmmc_read_switch()
353 		card->switch_caps.uhs_max_dtr = UHS_UNSUPPORTED;  in sdmmc_read_switch()
355 	if (card->sd_version >= SD_SPEC_VER3_0) {  in sdmmc_read_switch()
356 		card->switch_caps.bus_speed = status[13];  in sdmmc_read_switch()
357 		card->switch_caps.sd_drv_type = status[9];  in sdmmc_read_switch()
358 		card->switch_caps.sd_current_limit = status[7];  in sdmmc_read_switch()
367 	 * selection is defined using values 0x0-0xF.  in sdmmc_select_bus_speed()
369 	if ((card->flags & SD_1800MV_FLAG) && sdmmc_host_uhs(&card->host_props) &&  in sdmmc_select_bus_speed()
370 	    !(card->host_props.is_spi) && IS_ENABLED(CONFIG_SD_UHS_PROTOCOL)) {  in sdmmc_select_bus_speed()
372 		if (card->host_props.host_caps.sdr104_support &&  in sdmmc_select_bus_speed()
373 		    (card->switch_caps.bus_speed & UHS_SDR104_BUS_SPEED)) {  in sdmmc_select_bus_speed()
374 			card->card_speed = SD_TIMING_SDR104;  in sdmmc_select_bus_speed()
375 		} else if (card->host_props.host_caps.ddr50_support &&  in sdmmc_select_bus_speed()
376 			   (card->switch_caps.bus_speed & UHS_DDR50_BUS_SPEED)) {  in sdmmc_select_bus_speed()
377 			card->card_speed = SD_TIMING_DDR50;  in sdmmc_select_bus_speed()
378 		} else if (card->host_props.host_caps.sdr50_support &&  in sdmmc_select_bus_speed()
379 			   (card->switch_caps.bus_speed & UHS_SDR50_BUS_SPEED)) {  in sdmmc_select_bus_speed()
380 			card->card_speed = SD_TIMING_SDR50;  in sdmmc_select_bus_speed()
381 		} else if (card->switch_caps.bus_speed & UHS_SDR12_BUS_SPEED) {  in sdmmc_select_bus_speed()
382 			card->card_speed = SD_TIMING_SDR25;  in sdmmc_select_bus_speed()
384 			card->card_speed = SD_TIMING_SDR12;  in sdmmc_select_bus_speed()
388 		if (card->host_props.host_caps.high_spd_support &&  in sdmmc_select_bus_speed()
389 		    (card->switch_caps.bus_speed & HIGH_SPEED_BUS_SPEED)) {  in sdmmc_select_bus_speed()
390 			card->card_speed = SD_TIMING_HIGH_SPEED;  in sdmmc_select_bus_speed()
392 			card->card_speed = SD_TIMING_DEFAULT;  in sdmmc_select_bus_speed()
401 	uint8_t *status = card->card_buffer;  in sdmmc_select_driver_type()
407 	if (card->host_props.host_caps.drv_type_c_support &&  in sdmmc_select_driver_type()
408 	    (card->switch_caps.sd_drv_type & SD_DRIVER_TYPE_C)) {  in sdmmc_select_driver_type()
409 		card->bus_io.driver_type = SD_DRIVER_TYPE_C;  in sdmmc_select_driver_type()
412 				   (find_msb_set(SD_DRIVER_TYPE_C) - 1), status);  in sdmmc_select_driver_type()
421 	int max_current = -1;  in sdmmc_set_current_limit()
422 	uint8_t *status = card->card_buffer;  in sdmmc_set_current_limit()
424 	if ((card->card_speed != SD_TIMING_SDR50) && (card->card_speed != SD_TIMING_SDR104) &&  in sdmmc_set_current_limit()
425 	    (card->card_speed != SD_TIMING_DDR50)) {  in sdmmc_set_current_limit()
427 	} else if (card->host_props.max_current_180 >= 800 &&  in sdmmc_set_current_limit()
428 		   (card->switch_caps.sd_current_limit & SD_MAX_CURRENT_800MA)) {  in sdmmc_set_current_limit()
430 	} else if (card->host_props.max_current_180 >= 600 &&  in sdmmc_set_current_limit()
431 		   (card->switch_caps.sd_current_limit & SD_MAX_CURRENT_600MA)) {  in sdmmc_set_current_limit()
433 	} else if (card->host_props.max_current_180 >= 400 &&  in sdmmc_set_current_limit()
434 		   (card->switch_caps.sd_current_limit & SD_MAX_CURRENT_400MA)) {  in sdmmc_set_current_limit()
436 	} else if (card->host_props.max_current_180 >= 200 &&  in sdmmc_set_current_limit()
437 		   (card->switch_caps.sd_current_limit & SD_MAX_CURRENT_200MA)) {  in sdmmc_set_current_limit()
440 	if (max_current != -1) {  in sdmmc_set_current_limit()
461 	uint8_t *status = card->card_buffer;  in sdmmc_set_bus_speed()
469 	if ((card->flags & SD_1800MV_FLAG) && sdmmc_host_uhs(&card->host_props) &&  in sdmmc_set_bus_speed()
470 	    !(card->host_props.is_spi) && IS_ENABLED(CONFIG_SD_UHS_PROTOCOL)) {  in sdmmc_set_bus_speed()
472 		card_clock = MIN(card->host_props.f_max, card->switch_caps.uhs_max_dtr);  in sdmmc_set_bus_speed()
473 		switch (card->card_speed) {  in sdmmc_set_bus_speed()
495 		card_clock = MIN(card->host_props.f_max, card->switch_caps.hs_max_dtr);  in sdmmc_set_bus_speed()
496 		switch (card->card_speed) {  in sdmmc_set_bus_speed()
510 	ret = sdmmc_switch(card, SD_SWITCH_SET, SD_GRP_TIMING_MODE, card->card_speed, status);  in sdmmc_set_bus_speed()
515 	if ((status[16] & 0xF) != card->card_speed) {  in sdmmc_set_bus_speed()
519 		card->bus_io.timing = timing;  in sdmmc_set_bus_speed()
520 		card->bus_io.clock = card_clock;  in sdmmc_set_bus_speed()
521 		LOG_DBG("Setting bus clock to: %d", card->bus_io.clock);  in sdmmc_set_bus_speed()
522 		ret = sdhc_set_io(card->sdhc, &card->bus_io);  in sdmmc_set_bus_speed()
532  * Init UHS capable SD card. Follows figure 3-16 in physical layer specification.
564 	if (card->card_speed == SD_TIMING_SDR50 || card->card_speed == SD_TIMING_SDR104 ||  in sdmmc_init_uhs()
565 	    card->card_speed == SD_TIMING_DDR50) {  in sdmmc_init_uhs()
567 		ret = sdhc_execute_tuning(card->sdhc);  in sdmmc_init_uhs()
580 	if ((!card->host_props.host_caps.high_spd_support) ||  in sdmmc_init_hs()
581 	    (card->sd_version < SD_SPEC_VER1_1) ||  in sdmmc_init_hs()
582 	    (card->switch_caps.hs_max_dtr == HS_UNSUPPORTED)) {  in sdmmc_init_hs()
594 	if (card->flags & SD_4BITS_WIDTH) {  in sdmmc_init_hs()
615 	if (card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_SPI_MODE)) {  in sdmmc_card_init()
622 		return -ENOTSUP;  in sdmmc_card_init()
628 	card->type = CARD_SDMMC;  in sdmmc_card_init()
630 	if (card->flags & SD_SDHC_FLAG) {  in sdmmc_card_init()
633 			if (card->host_props.host_caps.vol_180_support) {  in sdmmc_card_init()
642 		if (card->host_props.host_caps.vol_300_support) {  in sdmmc_card_init()
658 	if (card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_SPI_MODE)) {  in sdmmc_card_init()
666 	if (card->ocr & SD_OCR_CARD_CAP_FLAG) {  in sdmmc_card_init()
667 		card->flags |= SD_HIGH_CAPACITY_FLAG;  in sdmmc_card_init()
669 	if (card->ocr & SD_OCR_SWITCH_18_ACCEPT_FLAG) {  in sdmmc_card_init()
671 		card->flags |= SD_1800MV_FLAG;  in sdmmc_card_init()
674 	if (card->ocr & SD_OCR_VDD29_30FLAG) {  in sdmmc_card_init()
675 		card->flags |= SD_3000MV_FLAG;  in sdmmc_card_init()
682 	if ((card->flags & SD_1800MV_FLAG) && (card->host_props.host_caps.vol_180_support) &&  in sdmmc_card_init()
683 	    (!card->host_props.is_spi) && IS_ENABLED(CONFIG_SD_UHS_PROTOCOL)) {  in sdmmc_card_init()
687 			card->host_props.host_caps.vol_180_support = false;  in sdmmc_card_init()
693 			card->status = CARD_ERROR;  in sdmmc_card_init()
697 	/* Read the card's CID (card identification register) */  in sdmmc_card_init()
702 	if (!card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_NATIVE_MODE)) {  in sdmmc_card_init()
717 	if (!card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_NATIVE_MODE)) {  in sdmmc_card_init()
728 	if (card->host_props.f_max < SD_CLOCK_25MHZ) {  in sdmmc_card_init()
730 			card->host_props.f_max);  in sdmmc_card_init()
731 		card->bus_io.clock = card->host_props.f_max;  in sdmmc_card_init()
733 		card->bus_io.clock = SD_CLOCK_25MHZ;  in sdmmc_card_init()
735 	ret = sdhc_set_io(card->sdhc, &card->bus_io);  in sdmmc_card_init()
740 	/* Read SD SCR (SD configuration register),  in sdmmc_card_init()
747 	/* Read switch capabilities to determine what speeds card supports */  in sdmmc_card_init()
748 	if (!card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_NATIVE_MODE)) {  in sdmmc_card_init()
751 			LOG_ERR("Failed to read card functions");  in sdmmc_card_init()
755 	if ((card->flags & SD_1800MV_FLAG) && sdmmc_host_uhs(&card->host_props) &&  in sdmmc_card_init()
756 	    !(card->host_props.is_spi) && IS_ENABLED(CONFIG_SD_UHS_PROTOCOL)) {  in sdmmc_card_init()
762 		if ((card->flags & SD_HIGH_CAPACITY_FLAG) == 0) {  in sdmmc_card_init()
769 			card->block_size = 512;  in sdmmc_card_init()
780 int sdmmc_ioctl(struct sd_card *card, uint8_t cmd, void *buf)  in sdmmc_ioctl()  argument
782 	return card_ioctl(card, cmd, buf);  in sdmmc_ioctl()