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CONFIG_MMC_SPI: MMC/SD/SDIO over SPI

General informations

The Linux kernel configuration item CONFIG_MMC_SPI has multiple definitions:

MMC/SD over SPI (EXPERIMENTAL) found in drivers/mmc/host/Kconfig

The configuration item CONFIG_MMC_SPI:

Help text

Some systems accss MMC/SD cards using a SPI controller instead of using a "native" MMC/SD controller. This has a disadvantage of being relatively high overhead, but a compensating advantage of working on many systems without dedicated MMC/SD controllers.

If unsure, or if your system has no SPI master driver, say N.

MMC/SD over SPI found in drivers/mmc/host/Kconfig

The configuration item CONFIG_MMC_SPI:

Help text

Some systems accss MMC/SD cards using a SPI controller instead of using a "native" MMC/SD controller. This has a disadvantage of being relatively high overhead, but a compensating advantage of working on many systems without dedicated MMC/SD controllers.

If unsure, or if your system has no SPI master driver, say N.

MMC/SD/SDIO over SPI found in drivers/mmc/host/Kconfig

The configuration item CONFIG_MMC_SPI:

Help text

Some systems access MMC/SD/SDIO cards using a SPI controller instead of using a "native" MMC/SD/SDIO controller. This has a disadvantage of being relatively high overhead, but a compensating advantage of working on many systems without dedicated MMC/SD/SDIO controllers.

If unsure, or if your system has no SPI master driver, say N.

Hardware

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