projects / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 09d71aac SG |
1 | config BLK |
| 2 | bool "Support block devices" | |
| 3 | depends on DM | |
| 896a74f6 | 4 | default y if DM_MMC |
| 09d71aac SG |
5 | help |
| 6 | Enable support for block devices, such as SCSI, MMC and USB | |
| 7 | flash sticks. These provide a block-level interface which permits | |
| 8 | reading, writing and (in some cases) erasing blocks. Block | |
| 9 | devices often have a partition table which allows the device to | |
| 10 | be partitioned into several areas, called 'partitions' in U-Boot. | |
| 11 | A filesystem can be placed in each partition. | |
| 12 | ||
| 1811a928 AF |
13 | config HAVE_BLOCK_DEVICE |
| 14 | bool "Enable Legacy Block Device" | |
| 15 | help | |
| 16 | Some devices require block support whether or not DM is enabled | |
| 17 | ||
| c4d660d4 SG |
18 | config SPL_BLK |
| 19 | bool "Support block devices in SPL" | |
| 20 | depends on SPL_DM && BLK | |
| 21 | default y | |
| 22 | help | |
| 23 | Enable support for block devices, such as SCSI, MMC and USB | |
| 24 | flash sticks. These provide a block-level interface which permits | |
| 25 | reading, writing and (in some cases) erasing blocks. Block | |
| 26 | devices often have a partition table which allows the device to | |
| 27 | be partitioned into several areas, called 'partitions' in U-Boot. | |
| 28 | A filesystem can be placed in each partition. | |
| 29 | ||
| e40cf34a EN |
30 | config BLOCK_CACHE |
| 31 | bool "Use block device cache" | |
| 32 | default n | |
| 33 | help | |
| 34 | This option enables a disk-block cache for all block devices. | |
| 35 | This is most useful when accessing filesystems under U-Boot since | |
| 36 | it will prevent repeated reads from directory structures and other | |
| 37 | filesystem data structures. | |
| e8a016b5 | 38 | |
| fc843a02 SG |
39 | config IDE |
| 40 | bool "Support IDE controllers" | |
| 1811a928 | 41 | select HAVE_BLOCK_DEVICE |
| fc843a02 SG |
42 | help |
| 43 | Enables support for IDE (Integrated Drive Electronics) hard drives. | |
| 44 | This allows access to raw blocks and filesystems on an IDE drive | |
| 45 | from U-Boot. See also CMD_IDE which provides an 'ide' command for | |
| 46 | performing various IDE operations. |