# # MMC core configuration # config MMC_CLKGATE bool "MMC host clock gating" help This will attempt to aggressively gate the clock to the MMC card. This is done to save power due to gating off the logic and bus noise when the MMC card is not in use. Your host driver has to support handling this in order for it to be of any use. If unsure, say N. config MMC_EMBEDDED_SDIO boolean "MMC embedded SDIO device support (EXPERIMENTAL)" help If you say Y here, support will be added for embedded SDIO devices which do not contain the necessary enumeration support in hardware to be properly detected. config MMC_PARANOID_SD_INIT bool "Enable paranoid SD card initialization (EXPERIMENTAL)" help If you say Y here, the MMC layer will be extra paranoid about re-trying SD init requests. This can be a useful work-around for buggy controllers and hardware. Enable if you are experiencing issues with SD detection.