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![Simon Glass](/assets/img/avatar_default.png)
At present if U-Boot proper uses driver model for MMC, then SPL has to also. While this is desirable, it places a significant barrier to moving to driver model in some cases. For example, with a space-constrained SPL it may be necessary to enable CONFIG_SPL_OF_PLATDATA which involves adjusting some drivers. Add new SPL versions of the options for DM_MMC, DM_MMC_OPS and BLK. By default these follow their non-SPL versions, but this can be changed by boards which need it. Signed-off-by: Simon Glass <sjg@chromium.org>
41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
config BLK
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bool "Support block devices"
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depends on DM
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default y if DM_MMC
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help
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Enable support for block devices, such as SCSI, MMC and USB
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flash sticks. These provide a block-level interface which permits
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reading, writing and (in some cases) erasing blocks. Block
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devices often have a partition table which allows the device to
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be partitioned into several areas, called 'partitions' in U-Boot.
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A filesystem can be placed in each partition.
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config SPL_BLK
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bool "Support block devices in SPL"
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depends on SPL_DM && BLK
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default y
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help
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Enable support for block devices, such as SCSI, MMC and USB
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flash sticks. These provide a block-level interface which permits
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reading, writing and (in some cases) erasing blocks. Block
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devices often have a partition table which allows the device to
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be partitioned into several areas, called 'partitions' in U-Boot.
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A filesystem can be placed in each partition.
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config BLOCK_CACHE
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bool "Use block device cache"
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default n
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help
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This option enables a disk-block cache for all block devices.
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This is most useful when accessing filesystems under U-Boot since
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it will prevent repeated reads from directory structures and other
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filesystem data structures.
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config IDE
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bool "Support IDE controllers"
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help
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Enables support for IDE (Integrated Drive Electronics) hard drives.
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This allows access to raw blocks and filesystems on an IDE drive
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from U-Boot. See also CMD_IDE which provides an 'ide' command for
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performing various IDE operations.
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