4  * SPDX-License-Identifier: Apache-2.0
26 	scr->flags = 0U;  in sdmmc_decode_scr()
27 	scr->scr_structure = (uint8_t)((raw_scr[0U] & 0xF0000000U) >> 28U);  in sdmmc_decode_scr()
28 	scr->sd_spec = (uint8_t)((raw_scr[0U] & 0xF000000U) >> 24U);  in sdmmc_decode_scr()
30 		scr->flags |= SD_SCR_DATA_STATUS_AFTER_ERASE;  in sdmmc_decode_scr()
32 	scr->sd_sec = (uint8_t)((raw_scr[0U] & 0x700000U) >> 20U);  in sdmmc_decode_scr()
33 	scr->sd_width = (uint8_t)((raw_scr[0U] & 0xF0000U) >> 16U);  in sdmmc_decode_scr()
35 		scr->flags |= SD_SCR_SPEC3;  in sdmmc_decode_scr()
37 	scr->sd_ext_sec = (uint8_t)((raw_scr[0U] & 0x7800U) >> 10U);  in sdmmc_decode_scr()
38 	scr->cmd_support = (uint8_t)(raw_scr[0U] & 0x3U);  in sdmmc_decode_scr()
39 	scr->rsvd = raw_scr[1U];  in sdmmc_decode_scr()
41 	switch (scr->sd_spec) {  in sdmmc_decode_scr()
50 		if (scr->flags & SD_SCR_SPEC3) {  in sdmmc_decode_scr()
79 	ret = sdhc_request(card->sdhc, &cmd, NULL);  in sdmmc_spi_send_ocr()
86 	card->ocr = cmd.response[1];  in sdmmc_spi_send_ocr()
87 	if (card->ocr == 0) {  in sdmmc_spi_send_ocr()
89 		return -ENOTSUP;  in sdmmc_spi_send_ocr()
115 		ret = sdhc_request(card->sdhc, &cmd, NULL);  in sdmmc_send_ocr()
128 		if (card->host_props.is_spi) {  in sdmmc_send_ocr()
142 		return -ETIMEDOUT;  in sdmmc_send_ocr()
145 	if (!card->host_props.is_spi) {  in sdmmc_send_ocr()
147 		card->ocr = cmd.response[0U];  in sdmmc_send_ocr()
161 	uint32_t *scr = (uint32_t *)card->card_buffer;  in sdmmc_read_scr()
164 	ret = sdmmc_app_command(card, card->relative_addr);  in sdmmc_read_scr()
180 	ret = sdhc_request(card->sdhc, &cmd, &data);  in sdmmc_read_scr()
188 	sdmmc_decode_scr(&card_scr, raw_scr, &card->sd_version);  in sdmmc_read_scr()
189 	LOG_DBG("SD reports specification version %d", card->sd_version);  in sdmmc_read_scr()
192 		card->flags |= SD_4BITS_WIDTH;  in sdmmc_read_scr()
196 		card->flags |= SD_SPEED_CLASS_CONTROL_FLAG;  in sdmmc_read_scr()
200 		card->flags |= SD_CMD23_FLAG;  in sdmmc_read_scr()
215 	return sdhc_request(card->sdhc, &cmd, NULL);  in sdmmc_set_blocklen()
232 	ret = sdmmc_app_command(card, card->relative_addr);  in sdmmc_set_bus_width()
248 		return -ENOTSUP;  in sdmmc_set_bus_width()
251 	ret = sdhc_request(card->sdhc, &cmd, NULL);  in sdmmc_set_bus_width()
262 	card->bus_io.bus_width = width;  in sdmmc_set_bus_width()
263 	ret = sdhc_set_io(card->sdhc, &card->bus_io);  in sdmmc_set_bus_width()
272  * See table 4-32 in SD physical specification for argument details.
275  * blocks should be left as 0xF (no effect on current function)
295 	return sdhc_request(card->sdhc, &cmd, &data);  in sdmmc_switch()
303 	if (card->sd_version < SD_SPEC_VER1_1) {  in sdmmc_read_switch()
309 	status = card->card_buffer;  in sdmmc_read_switch()
320 	 * See table 4-11 and 4.3.10.4 of physical layer specification for  in sdmmc_read_switch()
322 	 * read bits 400-408.  in sdmmc_read_switch()
327 		card->switch_caps.hs_max_dtr = HS_MAX_DTR;  in sdmmc_read_switch()
329 	if (card->sd_version >= SD_SPEC_VER3_0) {  in sdmmc_read_switch()
330 		card->switch_caps.bus_speed = status[13];  in sdmmc_read_switch()
331 		card->switch_caps.sd_drv_type = status[9];  in sdmmc_read_switch()
332 		card->switch_caps.sd_current_limit = status[7];  in sdmmc_read_switch()
341 	 * selection is defined using values 0x0-0xF.  in sdmmc_select_bus_speed()
343 	if (card->host_props.host_caps.sdr104_support &&  in sdmmc_select_bus_speed()
344 		(card->switch_caps.bus_speed & UHS_SDR104_BUS_SPEED) &&  in sdmmc_select_bus_speed()
345 		(card->host_props.f_max >= SD_CLOCK_208MHZ)) {  in sdmmc_select_bus_speed()
346 		card->card_speed = SD_TIMING_SDR104;  in sdmmc_select_bus_speed()
347 	} else if (card->host_props.host_caps.ddr50_support &&  in sdmmc_select_bus_speed()
348 		(card->switch_caps.bus_speed & UHS_DDR50_BUS_SPEED) &&  in sdmmc_select_bus_speed()
349 		(card->host_props.f_max >= SD_CLOCK_50MHZ)) {  in sdmmc_select_bus_speed()
350 		card->card_speed = SD_TIMING_DDR50;  in sdmmc_select_bus_speed()
351 	} else if (card->host_props.host_caps.sdr50_support &&  in sdmmc_select_bus_speed()
352 		(card->switch_caps.bus_speed & UHS_SDR50_BUS_SPEED) &&  in sdmmc_select_bus_speed()
353 		(card->host_props.f_max >= SD_CLOCK_100MHZ)) {  in sdmmc_select_bus_speed()
354 		card->card_speed = SD_TIMING_SDR50;  in sdmmc_select_bus_speed()
355 	} else if (card->host_props.host_caps.high_spd_support &&  in sdmmc_select_bus_speed()
356 		(card->switch_caps.bus_speed & UHS_SDR12_BUS_SPEED) &&  in sdmmc_select_bus_speed()
357 		(card->host_props.f_max >= SD_CLOCK_25MHZ)) {  in sdmmc_select_bus_speed()
358 		card->card_speed = SD_TIMING_SDR12;  in sdmmc_select_bus_speed()
366 	uint8_t *status = card->card_buffer;  in sdmmc_select_driver_type()
370 	 * since it should result in lower current consumption if supported.  in sdmmc_select_driver_type()
372 	if (card->host_props.host_caps.drv_type_c_support &&  in sdmmc_select_driver_type()
373 		(card->switch_caps.sd_drv_type & SD_DRIVER_TYPE_C)) {  in sdmmc_select_driver_type()
374 		card->bus_io.driver_type = SD_DRIVER_TYPE_C;  in sdmmc_select_driver_type()
378 			(find_msb_set(SD_DRIVER_TYPE_C) - 1), status);  in sdmmc_select_driver_type()
383 /* Sets current limit for SD card */
387 	int max_current = -1;  in sdmmc_set_current_limit()
388 	uint8_t *status = card->card_buffer;  in sdmmc_set_current_limit()
390 	if ((card->card_speed != SD_TIMING_SDR50) &&  in sdmmc_set_current_limit()
391 		(card->card_speed != SD_TIMING_SDR104) &&  in sdmmc_set_current_limit()
392 		(card->card_speed != SD_TIMING_DDR50)) {  in sdmmc_set_current_limit()
393 		return 0; /* Cannot set current limit */  in sdmmc_set_current_limit()
394 	} else if (card->host_props.max_current_180 >= 800 &&  in sdmmc_set_current_limit()
395 		(card->switch_caps.sd_current_limit & SD_MAX_CURRENT_800MA)) {  in sdmmc_set_current_limit()
397 	} else if (card->host_props.max_current_180 >= 600 &&  in sdmmc_set_current_limit()
398 		(card->switch_caps.sd_current_limit & SD_MAX_CURRENT_600MA)) {  in sdmmc_set_current_limit()
400 	} else if (card->host_props.max_current_180 >= 400 &&  in sdmmc_set_current_limit()
401 		(card->switch_caps.sd_current_limit & SD_MAX_CURRENT_400MA)) {  in sdmmc_set_current_limit()
403 	} else if (card->host_props.max_current_180 >= 200 &&  in sdmmc_set_current_limit()
404 		(card->switch_caps.sd_current_limit & SD_MAX_CURRENT_200MA)) {  in sdmmc_set_current_limit()
407 	if (max_current != -1) {  in sdmmc_set_current_limit()
408 		LOG_DBG("Changing SD current limit: %d", max_current);  in sdmmc_set_current_limit()
409 		/* Switch SD current */  in sdmmc_set_current_limit()
413 			LOG_DBG("Failed to set SD current limit");  in sdmmc_set_current_limit()
417 			/* Status response indicates card did not select request limit */  in sdmmc_set_current_limit()
418 			LOG_WRN("Card did not accept current limit");  in sdmmc_set_current_limit()
429 	uint8_t *status = card->card_buffer;  in sdmmc_set_bus_speed()
431 	switch (card->card_speed) {  in sdmmc_set_bus_speed()
434 		card->switch_caps.uhs_max_dtr = SD_CLOCK_208MHZ;  in sdmmc_set_bus_speed()
438 		card->switch_caps.uhs_max_dtr = SD_CLOCK_50MHZ;  in sdmmc_set_bus_speed()
442 		card->switch_caps.uhs_max_dtr = SD_CLOCK_100MHZ;  in sdmmc_set_bus_speed()
446 		card->switch_caps.uhs_max_dtr = SD_CLOCK_50MHZ;  in sdmmc_set_bus_speed()
450 		card->switch_caps.uhs_max_dtr = SD_CLOCK_25MHZ;  in sdmmc_set_bus_speed()
460 		card->card_speed, status);  in sdmmc_set_bus_speed()
465 	if ((status[16] & 0xF) != card->card_speed) {  in sdmmc_set_bus_speed()
469 		card->bus_io.timing = timing;  in sdmmc_set_bus_speed()
470 		card->bus_io.clock = card->switch_caps.uhs_max_dtr;  in sdmmc_set_bus_speed()
471 		LOG_DBG("Setting bus clock to: %d", card->bus_io.clock);  in sdmmc_set_bus_speed()
472 		ret = sdhc_set_io(card->sdhc, &card->bus_io);  in sdmmc_set_bus_speed()
482  * Init UHS capable SD card. Follows figure 3-16 in physical layer specification.
505 		LOG_DBG("Failed to set card current limit");  in sdmmc_init_uhs()
514 	if (card->card_speed == SD_TIMING_SDR50 ||  in sdmmc_init_uhs()
515 		card->card_speed == SD_TIMING_SDR104 ||  in sdmmc_init_uhs()
516 		card->card_speed == SD_TIMING_DDR50) {  in sdmmc_init_uhs()
518 		ret = sdhc_execute_tuning(card->sdhc);  in sdmmc_init_uhs()
531 	if ((!card->host_props.host_caps.high_spd_support) ||  in sdmmc_init_hs()
532 		(card->sd_version < SD_SPEC_VER1_1) ||  in sdmmc_init_hs()
533 		(card->switch_caps.hs_max_dtr == 0)) {  in sdmmc_init_hs()
537 	card->card_speed = SD_TIMING_SDR25;  in sdmmc_init_hs()
543 	if (card->flags & SD_4BITS_WIDTH) {  in sdmmc_init_hs()
564 	if (card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_SPI_MODE)) {  in sdmmc_card_init()
571 		return -ENOTSUP;  in sdmmc_card_init()
577 	card->type = CARD_SDMMC;  in sdmmc_card_init()
579 	if (card->flags & SD_SDHC_FLAG) {  in sdmmc_card_init()
582 			if (card->host_props.host_caps.vol_180_support) {  in sdmmc_card_init()
591 		if (card->host_props.host_caps.vol_300_support) {  in sdmmc_card_init()
607 	if (card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_SPI_MODE)) {  in sdmmc_card_init()
615 	if (card->ocr & SD_OCR_CARD_CAP_FLAG) {  in sdmmc_card_init()
616 		card->flags |= SD_HIGH_CAPACITY_FLAG;  in sdmmc_card_init()
618 	if (card->ocr & SD_OCR_SWITCH_18_ACCEPT_FLAG) {  in sdmmc_card_init()
620 		card->flags |= SD_1800MV_FLAG;  in sdmmc_card_init()
623 	if (card->ocr & SD_OCR_VDD29_30FLAG) {  in sdmmc_card_init()
624 		card->flags |= SD_3000MV_FLAG;  in sdmmc_card_init()
631 	if ((card->flags & SD_1800MV_FLAG) &&  in sdmmc_card_init()
632 		(card->host_props.host_caps.vol_180_support) &&  in sdmmc_card_init()
633 		(!card->host_props.is_spi) &&  in sdmmc_card_init()
638 			card->host_props.host_caps.vol_180_support = false;  in sdmmc_card_init()
644 			card->status = CARD_ERROR;  in sdmmc_card_init()
653 	if (!card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_NATIVE_MODE)) {  in sdmmc_card_init()
668 	if (!card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_NATIVE_MODE)) {  in sdmmc_card_init()
679 	if (card->host_props.f_max < SD_CLOCK_25MHZ) {  in sdmmc_card_init()
681 			card->host_props.f_max);  in sdmmc_card_init()
682 		card->bus_io.clock = card->host_props.f_max;  in sdmmc_card_init()
684 		card->bus_io.clock = SD_CLOCK_25MHZ;  in sdmmc_card_init()
686 	ret = sdhc_set_io(card->sdhc, &card->bus_io);  in sdmmc_card_init()
699 	if (!card->host_props.is_spi && IS_ENABLED(CONFIG_SDHC_SUPPORTS_NATIVE_MODE)) {  in sdmmc_card_init()
706 	if ((card->flags & SD_1800MV_FLAG) &&  in sdmmc_card_init()
707 		sdmmc_host_uhs(&card->host_props) &&  in sdmmc_card_init()
708 		!(card->host_props.is_spi) &&  in sdmmc_card_init()
715 		if ((card->flags & SD_HIGH_CAPACITY_FLAG) == 0) {  in sdmmc_card_init()
722 			card->block_size = 512;  in sdmmc_card_init()