Kconfig 3.0 KB

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  1. config BLK
  2. bool "Support block devices"
  3. depends on DM
  4. default y if DM_MMC || DM_USB
  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. config HAVE_BLOCK_DEVICE
  13. bool "Enable Legacy Block Device"
  14. help
  15. Some devices require block support whether or not DM is enabled
  16. config SPL_BLK
  17. bool "Support block devices in SPL"
  18. depends on SPL_DM && BLK
  19. default y
  20. help
  21. Enable support for block devices, such as SCSI, MMC and USB
  22. flash sticks. These provide a block-level interface which permits
  23. reading, writing and (in some cases) erasing blocks. Block
  24. devices often have a partition table which allows the device to
  25. be partitioned into several areas, called 'partitions' in U-Boot.
  26. A filesystem can be placed in each partition.
  27. config TPL_BLK
  28. bool "Support block devices in TPL"
  29. depends on TPL_DM && BLK
  30. default y
  31. help
  32. Enable support for block devices, such as SCSI, MMC and USB
  33. flash sticks. These provide a block-level interface which permits
  34. reading, writing and (in some cases) erasing blocks. Block
  35. devices often have a partition table which allows the device to
  36. be partitioned into several areas, called 'partitions' in U-Boot.
  37. A filesystem can be placed in each partition.
  38. config BLOCK_CACHE
  39. bool "Use block device cache"
  40. depends on BLK
  41. default y
  42. help
  43. This option enables a disk-block cache for all block devices.
  44. This is most useful when accessing filesystems under U-Boot since
  45. it will prevent repeated reads from directory structures and other
  46. filesystem data structures.
  47. config SPL_BLOCK_CACHE
  48. bool "Use block device cache in SPL"
  49. depends on SPL_BLK
  50. help
  51. This option enables the disk-block cache in SPL
  52. config TPL_BLOCK_CACHE
  53. bool "Use block device cache in TPL"
  54. depends on TPL_BLK
  55. help
  56. This option enables the disk-block cache in TPL
  57. config EFI_MEDIA
  58. bool "Support EFI media drivers"
  59. default y if EFI || SANDBOX
  60. help
  61. Enable this to support media devices on top of UEFI. This enables
  62. just the uclass so you also need a specific driver to make this do
  63. anything.
  64. For sandbox there is a test driver.
  65. if EFI_MEDIA
  66. config EFI_MEDIA_SANDBOX
  67. bool "Sandbox EFI media driver"
  68. depends on SANDBOX
  69. default y
  70. help
  71. Enables a simple sandbox media driver, used for testing just the
  72. EFI_MEDIA uclass. It does not do anything useful, since sandbox does
  73. not actually support running on top of UEFI.
  74. endif # EFI_MEDIA
  75. config IDE
  76. bool "Support IDE controllers"
  77. select HAVE_BLOCK_DEVICE
  78. help
  79. Enables support for IDE (Integrated Drive Electronics) hard drives.
  80. This allows access to raw blocks and filesystems on an IDE drive
  81. from U-Boot. See also CMD_IDE which provides an 'ide' command for
  82. performing various IDE operations.