Allow the selection of CONFIG_BLOCK_CACHE, CONFIG_CMD_BLOCK_CACHE using menuconfig.
Signed-off-by: Eric Nelson eric@nelint.com --- drivers/block/Kconfig | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index f35c4d4..6529efb 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -18,3 +18,22 @@ config DISK types can use this, such as AHCI/SATA. It does not provide any standard operations at present. The block device interface has not been converted to driver model. + +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. + +config CMD_BLOCK_CACHE + bool "Include block device cache control command (blkcache)" + depends on BLOCK_CACHE + default y if BLOCK_CACHE + help + Enable the blkcache command, which can be used to control the + operation of the cache functions. + This is most useful when fine-tuning the operation of the cache + during development, but also allows the cache to be disabled when + it might hurt performance (e.g. when using the ums command).