blk: Support block drivers in TPL
At present it is not possible to enable/disable block drivers in TPL. This
is needed to provide sandbox support. Add a Kconfig option and adjust the
Makefile.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index f9502b3..33f4aa2 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -27,6 +27,18 @@
be partitioned into several areas, called 'partitions' in U-Boot.
A filesystem can be placed in each partition.
+config TPL_BLK
+ bool "Support block devices in TPL"
+ depends on TPL_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"
depends on BLK