binman: Support updating all device tree files
Binman currently supports updating the main device tree with things like
the position of each entry. Extend this support to SPL and TPL as well,
since they may need (a subset of) this information.
Also adjust DTB output files to have a .out extension since this seems
clearer than having a .dtb extension with 'out' in the name somwhere.
Also add a few missing comments and update the DT setup code to use
ReadFile and WriteFile().
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/README.entries b/tools/binman/README.entries
index 5cb52a9..091fb5c 100644
--- a/tools/binman/README.entries
+++ b/tools/binman/README.entries
@@ -26,6 +26,15 @@
+Entry: blob-dtb: A blob that holds a device tree
+------------------------------------------------
+
+This is a blob containing a device tree. The contents of the blob are
+obtained from the list of available device-tree files, managed by the
+'state' module.
+
+
+
Entry: blob-named-by-arg: A blob entry which gets its filename property from its subclass
-----------------------------------------------------------------------------------------
@@ -309,6 +318,9 @@
U-Boot. U-Boot needs this to know what devices are present and which drivers
to activate.
+Note: This is mostly an internal entry type, used by others. This allows
+binman to know which entries contain a device tree.
+
Entry: u-boot-dtb-with-ucode: A U-Boot device tree file, with the microcode removed