Introduce preliminary support for Neoverse Zeus

Change-Id: If56d1e200a31bd716726d7fdc1cc0ae8a63ba3ee
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
diff --git a/include/lib/cpus/aarch64/neoverse_zeus.h b/include/lib/cpus/aarch64/neoverse_zeus.h
new file mode 100644
index 0000000..f094727
--- /dev/null
+++ b/include/lib/cpus/aarch64/neoverse_zeus.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2019, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef NEOVERSE_ZEUS_H
+#define NEOVERSE_ZEUS_H
+
+#define NEOVERSE_ZEUS_MIDR					U(0x410FD400)
+
+/*******************************************************************************
+ * CPU Extended Control register specific definitions.
+ ******************************************************************************/
+#define NEOVERSE_ZEUS_CPUECTLR_EL1				S3_0_C15_C1_4
+
+/*******************************************************************************
+ * CPU Power Control register specific definitions
+ ******************************************************************************/
+#define NEOVERSE_ZEUS_CPUPWRCTLR_EL1				S3_0_C15_C2_7
+#define NEOVERSE_ZEUS_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
+
+#endif /* NEOVERSE_ZEUS_H */