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 f9502b36bacd56f52b3796969d03aeac3ccdd6cc..33f4aa24185447663529cc461347fb0bc27f01a7 100644 (file)
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -27,6 +27,18 @@ config SPL_BLK
          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

diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index 0e80ce94058fef014763e7cfbb2aec1c7ff15825..055d42f7d4af263b5e7c476ef7e889e56618812c 100644 (file)
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -11,4 +11,4 @@ endif
 
 obj-$(CONFIG_IDE) += ide.o
 obj-$(CONFIG_SANDBOX) += sandbox.o
-obj-$(CONFIG_$(SPL_)BLOCK_CACHE) += blkcache.o
+obj-$(CONFIG_$(SPL_TPL_)BLOCK_CACHE) += blkcache.o