4  * SPDX-License-Identifier: Apache-2.0
21 /* Idle all cards on bus. Can be used to clear errors on cards */
32 	return sdhc_request(card->sdhc, &cmd, NULL);  in sd_idle()
38  * - CMD0 (SD reset)
39  * - CMD8 (SD voltage check)
60 	ret = sdhc_request(card->sdhc, &cmd, NULL);  in sd_send_interface_condition()
66 	if (card->host_props.is_spi) {  in sd_send_interface_condition()
78 		return -ENOTSUP;  in sd_send_interface_condition()
81 	card->flags |= SD_SDHC_FLAG;  in sd_send_interface_condition()
91 	__ASSERT_NO_MSG(card->host_props.is_spi);  in sd_enable_crc()
97 	return sdhc_request(card->sdhc, &cmd, NULL);  in sd_enable_crc()
107 	if (ret == -ETIMEDOUT) {  in sd_common_init()
114 	if (card->host_props.is_spi &&  in sd_common_init()
124 	struct sdhc_io *bus_io = &card->bus_io;  in sd_init_io()
125 	struct sdhc_host_props *host_props = &card->host_props;  in sd_init_io()
129 	bus_io->clock = 0;  in sd_init_io()
131 	bus_io->bus_mode = SDHC_BUSMODE_PUSHPULL;  in sd_init_io()
132 	bus_io->power_mode = SDHC_POWER_ON;  in sd_init_io()
133 	bus_io->bus_width = SDHC_BUS_WIDTH1BIT;  in sd_init_io()
135 	bus_io->timing = SDHC_TIMING_LEGACY;  in sd_init_io()
137 	if (host_props->host_caps.vol_330_support) {  in sd_init_io()
140 	} else if (host_props->host_caps.vol_300_support) {  in sd_init_io()
149 	bus_io->signal_voltage = voltage;  in sd_init_io()
153 	bus_io->power_mode = SDHC_POWER_OFF;  in sd_init_io()
154 	ret = sdhc_set_io(card->sdhc, bus_io);  in sd_init_io()
159 	sd_delay(card->host_props.power_delay);  in sd_init_io()
160 	bus_io->power_mode = SDHC_POWER_ON;  in sd_init_io()
161 	ret = sdhc_set_io(card->sdhc, bus_io);  in sd_init_io()
167 	card->card_voltage = voltage;  in sd_init_io()
169 	card->flags = 0U;  in sd_init_io()
171 	sd_delay(card->host_props.power_delay);  in sd_init_io()
172 	/* Start bus clock */  in sd_init_io()
173 	bus_io->clock = SDMMC_CLOCK_400KHZ;  in sd_init_io()
174 	ret = sdhc_set_io(card->sdhc, bus_io);  in sd_init_io()
176 		LOG_ERR("Could not start bus clock");  in sd_init_io()
230 	return -ENOTSUP;  in sd_command_init()
239 		return -ENODEV;  in sd_init()
241 	card->sdhc = sdhc_dev;  in sd_init()
242 	ret = sdhc_get_host_props(card->sdhc, &card->host_props);  in sd_init()
249 	ret = k_mutex_init(&card->lock);  in sd_init()
254 	ret = k_mutex_lock(&card->lock, K_MSEC(CONFIG_SD_INIT_TIMEOUT));  in sd_init()
256 		LOG_ERR("Timeout while trying to acquire card mutex");  in sd_init()
263 		k_mutex_unlock(&card->lock);  in sd_init()
272 	 * - set card status to error  in sd_init()
273 	 * - re init host I/O (will also toggle power to the SD card)  in sd_init()
274 	 * - retry initialization once more  in sd_init()
281 		card->status = CARD_ERROR;  in sd_init()
286 			k_mutex_unlock(&card->lock);  in sd_init()
292 			k_mutex_unlock(&card->lock);  in sd_init()
297 		k_mutex_unlock(&card->lock);  in sd_init()
298 		card->status = CARD_ERROR;  in sd_init()
302 	card->status = CARD_INITIALIZED;  in sd_init()
304 	ret = k_mutex_unlock(&card->lock);  in sd_init()