drivers/block/Kconfig

   1 config BLK
   2         bool "Support block devices"
   3         depends on DM
   4         default y if DM_MMC
   5         help
   6           Enable support for block devices, such as SCSI, MMC and USB
   7           flash sticks. These provide a block-level interface which permits
   8           reading, writing and (in some cases) erasing blocks. Block
   9           devices often have a partition table which allows the device to
  10           be partitioned into several areas, called 'partitions' in U-Boot.
  11           A filesystem can be placed in each partition.
  12
  13 config HAVE_BLOCK_DEVICE
  14         bool "Enable Legacy Block Device"
  15         help
  16           Some devices require block support whether or not DM is enabled
  17
  18 config SPL_BLK
  19         bool "Support block devices in SPL"
  20         depends on SPL_DM && BLK
  21         default y
  22         help
  23           Enable support for block devices, such as SCSI, MMC and USB
  24           flash sticks. These provide a block-level interface which permits
  25           reading, writing and (in some cases) erasing blocks. Block
  26           devices often have a partition table which allows the device to
  27           be partitioned into several areas, called 'partitions' in U-Boot.
  28           A filesystem can be placed in each partition.
  29
  30 config BLOCK_CACHE
  31         bool "Use block device cache"
  32         default n
  33         help
  34           This option enables a disk-block cache for all block devices.
  35           This is most useful when accessing filesystems under U-Boot since
  36           it will prevent repeated reads from directory structures and other
  37           filesystem data structures.
  38
  39 config IDE
  40         bool "Support IDE controllers"
  41         select HAVE_BLOCK_DEVICE
  42         help
  43           Enables support for IDE (Integrated Drive Electronics) hard drives.
  44           This allows access to raw blocks and filesystems on an IDE drive
  45           from U-Boot. See also CMD_IDE which provides an 'ide' command for
  46           performing various IDE operations.