diff --git a/platform/kendryte/k210/platform.h b/platform/kendryte/k210/platform.h
index b9e5a870..982d942e 100644
--- a/platform/kendryte/k210/platform.h
+++ b/platform/kendryte/k210/platform.h
@@ -1,4 +1,8 @@
-/* Copyright 2018 Canaan Inc.
+/*
+ * SPDX-License-Identifier:    Apache-2.0
+ *
+ * Copyright 2018 Canaan Inc.
+ * Copyright (c) 2019 Western Digital Corporation or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/platform/kendryte/k210/sysctl.c b/platform/kendryte/k210/sysctl.c
index 5977e330..8f8622d8 100644
--- a/platform/kendryte/k210/sysctl.c
+++ b/platform/kendryte/k210/sysctl.c
@@ -1,4 +1,8 @@
-/* Copyright 2018 Canaan Inc.
+/*
+ * SPDX-License-Identifier:    Apache-2.0
+ *
+ * Copyright 2018 Canaan Inc.
+ * Copyright (c) 2019 Western Digital Corporation or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/platform/kendryte/k210/sysctl.h b/platform/kendryte/k210/sysctl.h
index aa95d628..357acc5b 100644
--- a/platform/kendryte/k210/sysctl.h
+++ b/platform/kendryte/k210/sysctl.h
@@ -1,4 +1,8 @@
-/* Copyright 2018 Canaan Inc.
+/*
+ * SPDX-License-Identifier:    Apache-2.0
+ *
+ * Copyright 2018 Canaan Inc.
+ * Copyright (c) 2019 Western Digital Corporation or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/platform/kendryte/k210/uarths.c b/platform/kendryte/k210/uarths.c
index 34fcf394..3b3cbb90 100644
--- a/platform/kendryte/k210/uarths.c
+++ b/platform/kendryte/k210/uarths.c
@@ -1,4 +1,8 @@
-/* Copyright 2018 Canaan Inc.
+/*
+ * SPDX-License-Identifier:    Apache-2.0
+ *
+ * Copyright 2018 Canaan Inc.
+ * Copyright (c) 2019 Western Digital Corporation or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/platform/kendryte/k210/uarths.h b/platform/kendryte/k210/uarths.h
index f247a63a..ad3308ce 100644
--- a/platform/kendryte/k210/uarths.h
+++ b/platform/kendryte/k210/uarths.h
@@ -1,4 +1,8 @@
-/* Copyright 2018 Canaan Inc.
+/*
+ * SPDX-License-Identifier:    Apache-2.0
+ *
+ * Copyright 2018 Canaan Inc.
+ * Copyright (c) 2019 Western Digital Corporation or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.