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 SPL_BLK
  14         bool "Support block devices in SPL"
  15         depends on SPL_DM && BLK
  16         default y
  17         help
  18           Enable support for block devices, such as SCSI, MMC and USB
  19           flash sticks. These provide a block-level interface which permits
  20           reading, writing and (in some cases) erasing blocks. Block
  21           devices often have a partition table which allows the device to
  22           be partitioned into several areas, called 'partitions' in U-Boot.
  23           A filesystem can be placed in each partition.
  24
  25 config BLOCK_CACHE
  26         bool "Use block device cache"
  27         default n
  28         help
  29           This option enables a disk-block cache for all block devices.
  30           This is most useful when accessing filesystems under U-Boot since
  31           it will prevent repeated reads from directory structures and other
  32           filesystem data structures.
  33
  34 config IDE
  35         bool "Support IDE controllers"
  36         help
  37           Enables support for IDE (Integrated Drive Electronics) hard drives.
  38           This allows access to raw blocks and filesystems on an IDE drive
  39           from U-Boot. See also CMD_IDE which provides an 'ide' command for
  40           performing various IDE operations.