1 files changed, 15 insertions, 0 deletions

diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 0ef00bd6e54..86e3cd0d26a 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -1136,6 +1136,21 @@ When kbuild executes, the following steps are followed (roughly):
               resulting in the target file being recompiled for no
               obvious reason.
 
+    dtc
+        Create flattend device tree blob object suitable for linking
+        into vmlinux. Device tree blobs linked into vmlinux are placed
+        in an init section in the image. Platform code *must* copy the
+        blob to non-init memory prior to calling unflatten_device_tree().
+
+        Example:
+                #arch/x86/platform/ce4100/Makefile
+                clean-files := *dtb.S
+
+                DTC_FLAGS := -p 1024
+                obj-y += foo.dtb.o
+
+                $(obj)/%.dtb: $(src)/%.dts
+                        $(call cmd,dtc)
 
 --- 6.7 Custom kbuild commands