1config BLK 2 bool "Support block devices" 3 depends on DM 4 default y if DM_MMC 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 13config AHCI 14 bool "Support SATA controllers with driver model" 15 depends on DM 16 help 17 This enables a uclass for disk controllers in U-Boot. Various driver 18 types can use this, such as AHCI/SATA. It does not provide any standard 19 operations at present. The block device interface has not been converted 20 to driver model. 21 22config DM_SCSI 23 bool "Support SCSI controllers with driver model" 24 depends on BLK 25 help 26 This option enables the SCSI (Small Computer System Interface) uclass 27 which supports SCSI and SATA HDDs. For every device configuration 28 (IDs/LUNs) a block device is created with RAW read/write and 29 filesystem support. 30 31config BLOCK_CACHE 32 bool "Use block device cache" 33 default n 34 help 35 This option enables a disk-block cache for all block devices. 36 This is most useful when accessing filesystems under U-Boot since 37 it will prevent repeated reads from directory structures and other 38 filesystem data structures. 39 40menu "SATA/SCSI device support" 41 42config SATA_CEVA 43 bool "Ceva Sata controller" 44 depends on AHCI 45 depends on DM_SCSI 46 help 47 This option enables Ceva Sata controller hard IP available on Xilinx 48 ZynqMP. Support up to 2 external devices. Complient with SATA 3.1 and 49 AHCI 1.3 specifications with hot-plug detect feature. 50 51endmenu 52