| 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 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" |
| default n |
| 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 IDE |
| bool "Support IDE controllers" |
| 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. |
| |
| config SYSTEMACE |
| bool "Xilinx SystemACE support" |
| help |
| Adding this option adds support for Xilinx SystemACE chips attached |
| via some sort of local bus. The address of the chip must also be |
| defined in the CONFIG_SYS_SYSTEMACE_BASE macro. |
| |
| When SystemACE support is added, the "ace" device type becomes |
| available to the fat commands, i.e. fatls. |
| |
| config SYS_SYSTEMACE_BASE |
| hex "Base address of SystemACE chip" |
| depends on SYSTEMACE |
| |
| config SYS_SYSTEMACE_WIDTH |
| int "Word size of access to the of SystemACE chip" |
| depends on SYSTEMACE |