binman: doc: Add documentation to htmldocs

Add a link to binman's documentation and adjust the files so that it is
accessible. Use the name README.rst so it is easy to discover when binman
is installed without U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>

3 files changed, 28 insertions, 0 deletions

diff --git a/doc/develop/index.rst b/doc/develop/index.rst
index 444df679578..3edffbc6373 100644
--- a/doc/develop/index.rst
+++ b/doc/develop/index.rst
@@ -26,6 +26,14 @@ Debugging
    crash_dumps
    trace
 
+Packaging
+---------
+
+.. toctree::
+   :maxdepth: 1
+
+   package/index
+
 Testing
 -------
 
diff --git a/doc/develop/package/binman.rst b/doc/develop/package/binman.rst
new file mode 120000
index 00000000000..2e26e84b7d2
--- /dev/null
+++ b/doc/develop/package/binman.rst
@@ -0,0 +1 @@
+../../../tools/binman/binman.rst
\ No newline at end of file
diff --git a/doc/develop/package/index.rst b/doc/develop/package/index.rst
new file mode 100644
index 00000000000..9374be2e62c
--- /dev/null
+++ b/doc/develop/package/index.rst
@@ -0,0 +1,19 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Package U-Boot
+==============
+
+U-Boot uses Flat Image Tree (FIT) as a standard file format for packaging
+images that it it reads and boots. Documentation about FIT is available at
+doc/uImage.FIT
+
+U-Boot also provides binman for cases not covered by FIT. Examples include
+initial execution (since FIT itself does not have an executable header) and
+dealing with device boundaries, such as the read-only/read-write separation in
+SPI flash.
+
+
+.. toctree::
+   :maxdepth: 2
+
+   binman