--- zzzz-none-000/linux-3.10.107/Documentation/devicetree/00-INDEX	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/devicetree/00-INDEX	2021-02-04 17:41:59.000000000 +0000
@@ -8,3 +8,5 @@
 	- this file
 booting-without-of.txt
 	- Booting Linux without Open Firmware, describes history and format of device trees.
+usage-model.txt
+	- How Linux uses DT and what DT aims to solve.
\ No newline at end of file