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/Zephyr-latest/subsys/sd/
DKconfig11 Enable MMC protocol support. Required for eMMC cards to function.
16 Enable SDMMC protocol support. Required for SD memory cards to
22 Enable SDIO protocol support. Required for SD I/O cards to function.
100 Enable support for ultra high speed SD cards. This can be disabled to
Dsd.c21 /* Idle all cards on bus. Can be used to clear errors on cards */
36 * Perform init required for both SD and SDIO cards.
134 /* Cards start with legacy timing and Maximum voltage Host controller support */ in sd_init_io()
Dmmc.c165 * Legacy MMC cards will initialize slowly in mmc_card_init()
258 /* SD high Capacity is >2GB, the same as sector supporting MMC cards. */ in mmc_send_op_cond()
308 LOG_ERR("Legacy MMC cards are not supported."); in mmc_read_csd()
Dsd_ops.c355 * cycle. Some cards will only drive these in sdmmc_switch_voltage()
511 /* SDSC cards require block size in bytes, not blocks */ in card_read()
667 /* SDSC cards require block size in bytes, not blocks */ in card_write()
Dsdmmc.c575 /* Performs initialization for SD high speed cards */
647 /* Momentary delay before initialization OCR. Some cards will in sdmmc_card_init()
/Zephyr-latest/doc/services/storage/disk/
Daccess.rst14 Since many disk devices (such as SD cards) are hotpluggable, the disk access
44 SD cards via SPI. These drivers use disk driver interface and a file system
45 can access the SD cards via disk access API.
46 Both standard and high-capacity SD cards are supported.
55 Zephyr supports SD memory cards via the disk driver API, or via the SDMMC
57 but also supports direct block level access to cards. The SDMMC subsystem
59 with attached SD cards.
/Zephyr-latest/dts/bindings/sdhc/
Dsdhc.yaml37 the SDHC is capable of negotiating with cards on the bus.
44 cards first will select when attached to the SDHC bus
Dzephyr,sdhc-spi-slot.yaml19 Clock polarity to use for SPI SDHC. Some cards respond properly
/Zephyr-latest/include/zephyr/drivers/
Dsdhc.h88 * Many host controllers can control power to attached SD cards.
100 * Only relevant in SD mode, SPI does not support bus width. UHS cards will
101 * use 4 bit data bus, all cards start in 1 bit mode
112 * Used by SD host controller to determine the timing of the cards attached
113 * to the bus. Cards start with legacy timing, but UHS-II cards can go up to
142 * UHS cards can run with 1.8V signalling for improved power consumption. Legacy
143 * cards may support 3.0V signalling, and all cards start at 3.3V.
242 SDHC_INT_SDIO = BIT(0), /*!< Card interrupt, used by SDIO cards */
306 * attached SD cards.
361 * requires cards be powered up to detect presence, it should do so in
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/Zephyr-latest/tests/drivers/disk/disk_performance/
DREADME.txt5 was tested with SD cards, but can be used for other disk devices as well.
/Zephyr-latest/boards/shields/pmod_sd/doc/
Dindex.rst9 The Digilent Pmod SD (Revision B) allows system boards to read from and write to SD cards.
/Zephyr-latest/boards/ct/ctcc/doc/
Dindex.rst6 Connectivity Cards come with either M.2 or mPCIe form factor with various SoCs, enabling different
48 `Connectivity Cards Website`_ and for SoC information: `Nordic Semiconductor Infocenter`_.
258 .. _Connectivity Cards Website:
259 https://cthings.co/products/connectivity-cards
/Zephyr-latest/include/zephyr/sd/
Dsd_spec.h25 * specific to SDIO cards, or cards running in SPI mode instead of native SD
34 SDIO_SEND_OP_COND = 5, /* SDIO cards only */
212 * cards in native SD mode.
370 /* Maximum data rate possible for SD high speed cards */
376 /* Maximum data rate possible for SD uhs cards */
819 * Card common control registers, present on all SDIO cards
Dsd.h71 unsigned int num_io: 3; /*!< I/O function count. 0 for SD cards */
/Zephyr-latest/doc/_extensions/zephyr/domain/static/css/
Dboard-catalog.css96 /* Three cards per row */
/Zephyr-latest/tests/drivers/sdhc/src/
Dmain.c187 * modern cards are SDHC or better, and should respond as such. in ZTEST()
/Zephyr-latest/tests/subsys/sd/mmc/src/
Dmain.c14 #define SECTOR_SIZE 512 /* subsystem should set all cards to 512 byte blocks */
/Zephyr-latest/tests/subsys/sd/sdmmc/src/
Dmain.c15 #define SECTOR_SIZE 512 /* subsystem should set all cards to 512 byte blocks */
/Zephyr-latest/drivers/sdhc/
Dsdhc_esp32.c44 * of SD memory cards (most data transfers are multiples of 512 bytes).
105 * For cards which aren't UHS-1 or UHS-2 cards, which we don't support,
107 * Note: for non-UHS-1 cards, HS mode is optional.
Dsdhc_renesas_ra.c276 * For SDHC and SDXC cards, there are no erase group restrictions. in sdhc_ra_request()
Dsdhc_spi.c245 /* Some cards are slow, and need more time to respond. Continue in sdhc_spi_response_get()
/Zephyr-latest/boards/nxp/mimxrt685_evk/
Dmimxrt685_evk_mimxrt685s_cm33.dts341 /* Quick fix for 1.8V SD cards on RT600- disable 1.8V negotiation */
/Zephyr-latest/boards/nxp/imx95_evk/doc/
Dindex.rst36 - Supports Ethernet PHY daughter cards that can be configured to operate
/Zephyr-latest/boards/ezurio/bl5340_dvk/doc/
Dindex.rst184 An on-board micro SD card slot is available for use with micro SD cards.
/Zephyr-latest/doc/releases/
Drelease-notes-3.4.rst964 * Support was added for using CPOL/CPHA SPI clock modes with SD cards, as
965 some cards require the SPI clock switch to low when not active

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