binman: Add an etype for external binary blobs
It is useful to be able to distinguish between ordinary blobs such as
u-boot.bin and external blobs that cannot be build by the U-Boot build
system. If the external blobs are not available for some reason, then we
know that a value image cannot be built.
Introduce a new 'blob-ext' entry type for that.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/tools/binman/README.entries b/tools/binman/README.entries
index 4f2c48f..46f6ab1 100644
--- a/tools/binman/README.entries
+++ b/tools/binman/README.entries
@@ -42,6 +42,16 @@
+Entry: blob-ext: Entry containing an externally built binary blob
+-----------------------------------------------------------------
+
+Note: This should not be used by itself. It is normally used as a parent
+class by other entry types.
+
+See 'blob' for Properties / Entry arguments.
+
+
+
Entry: blob-named-by-arg: A blob entry which gets its filename property from its subclass
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