diff --git a/plat/arm/board/morello/morello_private.h b/plat/arm/board/morello/morello_private.h
new file mode 100644
index 0000000..ea2fce9
--- /dev/null
+++ b/plat/arm/board/morello/morello_private.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2023, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MORELLO_PRIVATE_H
+#define MORELLO_PRIVATE_H
+
+#include <lib/psci/psci.h>
+
+void morello_pwr_domain_off(const psci_power_state_t *target_state);
+void morello_pwr_domain_suspend(const psci_power_state_t *target_state);
+
+#endif /* MORELLO_PRIVATE_H */