mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-27 07:01:24 +00:00
731ba3c0be
Generally block devices are not enabled in TPL, but in case they are, add a Kconfig option for the block cache. This allows the setting (default off) to be found with CONFIG_IS_ENABLED(). Signed-off-by: Simon Glass <sjg@chromium.org>
73 lines
2.4 KiB
Text
73 lines
2.4 KiB
Text
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 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
|
|
default n
|
|
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
|
|
default n
|
|
help
|
|
This option enables the disk-block cache in TPL
|
|
|
|
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.
|