diff --git a/tools/kwboot.c b/tools/kwboot.c
index 6fa6dff..6a1a030 100644
--- a/tools/kwboot.c
+++ b/tools/kwboot.c
@@ -4,6 +4,8 @@
  *           Armada 39x
  *
  * (c) 2012 Daniel Stodden <daniel.stodden@gmail.com>
+ * (c) 2021 Pali Rohár <pali@kernel.org>
+ * (c) 2021 Marek Behún <marek.behun@nic.cz>
  *
  * References: marvell.com, "88F6180, 88F6190, 88F6192, and 88F6281
  *   Integrated Controller: Functional Specifications" December 2,