| config BLK |
| bool "Support block devices" |
| depends on DM |
| default y if DM_MMC || DM_USB |
| help |
| Enable support for block devices, such as SCSI, MMC and USB |
| flash sticks. These provide a block-level interface which permits |
| reading, writing and (in some cases) erasing blocks. Block |
| devices often have a partition table which allows the device to |
| be partitioned into several areas, called 'partitions' in U-Boot. |
| A filesystem can be placed in each partition. |
| |
| config HAVE_BLOCK_DEVICE |
| bool "Enable Legacy Block Device" |
| help |
| Some devices require block support whether or not DM is enabled |
| |
| config SPL_BLK |
| bool "Support block devices in SPL" |
| depends on SPL_DM && BLK |
| default y |
| help |
| Enable support for block devices, such as SCSI, MMC and USB |
| flash sticks. These provide a block-level interface which permits |
| reading, writing and (in some cases) erasing blocks. Block |
| devices often have a partition table which allows the device to |
| be partitioned into several areas, called 'partitions' in U-Boot. |
| A filesystem can be placed in each partition. |
| |
| config TPL_BLK |
| bool "Support block devices in TPL" |
| depends on TPL_DM && BLK |
| default y |
| help |
| Enable support for block devices, such as SCSI, MMC and USB |
| flash sticks. These provide a block-level interface which permits |
| reading, writing and (in some cases) erasing blocks. Block |
| devices often have a partition table which allows the device to |
| be partitioned into several areas, called 'partitions' in U-Boot. |
| A filesystem can be placed in each partition. |
| |
| config BLOCK_CACHE |
| bool "Use block device cache" |
| depends on BLK |
| default y |
| help |
| This option enables a disk-block cache for all block devices. |
| This is most useful when accessing filesystems under U-Boot since |
| it will prevent repeated reads from directory structures and other |
| filesystem data structures. |
| |
| config SPL_BLOCK_CACHE |
| bool "Use block device cache in SPL" |
| depends on SPL_BLK |
| help |
| This option enables the disk-block cache in SPL |
| |
| config TPL_BLOCK_CACHE |
| bool "Use block device cache in TPL" |
| depends on TPL_BLK |
| help |
| This option enables the disk-block cache in TPL |
| |
| config EFI_MEDIA |
| bool "Support EFI media drivers" |
| default y if EFI || SANDBOX |
| help |
| Enable this to support media devices on top of UEFI. This enables |
| just the uclass so you also need a specific driver to make this do |
| anything. |
| |
| For sandbox there is a test driver. |
| |
| if EFI_MEDIA |
| |
| config EFI_MEDIA_SANDBOX |
| bool "Sandbox EFI media driver" |
| depends on SANDBOX |
| default y |
| help |
| Enables a simple sandbox media driver, used for testing just the |
| EFI_MEDIA uclass. It does not do anything useful, since sandbox does |
| not actually support running on top of UEFI. |
| |
| config EFI_MEDIA_BLK |
| bool "EFI media block driver" |
| depends on EFI_APP |
| default y |
| help |
| Enables a block driver for providing access to UEFI devices. This |
| allows use of block devices detected by the underlying UEFI |
| implementation. With this it is possible to use filesystems on these |
| devices, for example. |
| |
| endif # EFI_MEDIA |
| |
| config IDE |
| bool "Support IDE controllers" |
| select HAVE_BLOCK_DEVICE |
| help |
| Enables support for IDE (Integrated Drive Electronics) hard drives. |
| This allows access to raw blocks and filesystems on an IDE drive |
| from U-Boot. See also CMD_IDE which provides an 'ide' command for |
| performing various IDE operations. |