ubi: ubifs: Add documentation for README

Describe the needed CONFIG tokens to enable UBI and UBIFS support.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>

diff --git a/README b/README
index 276fac9c6eb61bdca4ce6f399937bcd4681a16aa..81d3681dca70d4edb53de2ac9cb71facb98cb953 100644 (file)
--- a/README
+++ b/README
@@ -2806,6 +2806,22 @@ FIT uImage format:
                Adds the MTD partitioning infrastructure from the Linux
                kernel. Needed for UBI support.
 
+- UBI support
+               CONFIG_CMD_UBI
+
+               Adds commands for interacting with MTD partitions formatted
+               with the UBI flash translation layer
+
+               Requires also defining CONFIG_RBTREE
+
+- UBIFS support
+               CONFIG_CMD_UBIFS
+
+               Adds commands for interacting with UBI volumes formatted as
+               UBIFS.  UBIFS is read-only in u-boot.
+
+               Requires UBI support as well as CONFIG_LZO
+
 - SPL framework
                CONFIG_SPL
                Enable building of SPL globally.