/** @file\r
-*\r
-* Copyright (c) 2011-2013, ARM Limited. All rights reserved.\r
-*\r
-* This program and the accompanying materials\r
-* are licensed and made available under the terms and conditions of the BSD License\r
-* which accompanies this distribution. The full text of the license may be found at\r
-* http://opensource.org/licenses/bsd-license.php\r
-*\r
-* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-*\r
+\r
+ Copyright (c) 2011-2017, ARM Limited. All rights reserved.\r
+\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
+\r
**/\r
\r
#include "PrePi.h"\r
if (ArmReadCurrentEL () == AARCH64_EL2) {\r
// Trap General Exceptions. All exceptions that would be routed to EL1 are routed to EL2\r
ArmWriteHcr (ARM_HCR_TGE);\r
+\r
+ /* Enable Timer access for non-secure EL1 and EL0\r
+ The cnthctl_el2 register bits are architecturally\r
+ UNKNOWN on reset.\r
+ Disable event stream as it is not in use at this stage\r
+ */\r
+ ArmWriteCntHctl (CNTHCTL_EL2_EL1PCTEN | CNTHCTL_EL2_EL1PCEN);\r
}\r
}\r