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- config BLK
- bool "Support block devices"
- depends on DM
- default y if DM_MMC
- 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 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
- default n
- help
- This option enables the disk-block cache in SPL
- 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.
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