[U-Boot] [PATCHv2] block: Have BLOCK_CACHE default to y in some cases

[Tom Rini]

When dealing with filesystems that come from block devices we can get a
noticeable performance gain in some use cases from having the block
cache enabled.  The code paths are valid in other cases when we have BLK
set and may provide wins in raw reads in some use cases, so have this be
default when BLK is enabled.

Signed-off-by: Tom Rini <trini at konsulko.com>
---
Changes in v2:
- Make this default y, unconditionally but depend on BLK which is
  required for the functionality to be used.
---
 drivers/block/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 15fd1bcb2b7e..0792373cfc48 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -29,7 +29,8 @@ config SPL_BLK
 
 config BLOCK_CACHE
 	bool "Use block device cache"
-	default n
+	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
-- 
2.7.4