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# MMC/SD card drivers
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comment "MMC/SD Card Drivers"

config MMC_BLOCK
        tristate "MMC block device driver"
        depends on BLOCK
        default y
        help
          Say Y here to enable the MMC block device driver support.
          This provides a block device driver, which you can use to
          mount the filesystem. Almost everyone wishing MMC support
          should say Y or M here.

config MMC_BLOCK_BOUNCE
        bool "Use bounce buffer for simple hosts"
        depends on MMC_BLOCK
        default y
        help
          SD/MMC is a high latency protocol where it is crucial to
          send large requests in order to get high performance. Many
          controllers, however, are restricted to continuous memory
          (i.e. they can't do scatter-gather), something the kernel
          rarely can provide.

          Say Y here to help these restricted hosts by bouncing
          requests back and forth from a large buffer. You will get
          a big performance gain at the cost of up to 64 KiB of
          physical memory.

          If unsure, say Y here.

config SDIO_UART
        tristate "SDIO UART/GPS class support"
        depends on MMC
        help
          SDIO function driver for SDIO cards that implements the UART
          class, as well as the GPS class which appears like a UART.