projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 1bc83266 HL |
1 | /** @file\r |
| 2 | *\r | |
| 0e077330 | 3 | * Copyright (c) 2011-2017, ARM Limited. All rights reserved.\r |
| 1bc83266 HL |
4 | *\r |
| 5 | * This program and the accompanying materials\r | |
| 6 | * are licensed and made available under the terms and conditions of the BSD License\r | |
| 7 | * which accompanies this distribution. The full text of the license may be found at\r | |
| 8 | * http://opensource.org/licenses/bsd-license.php\r | |
| 9 | *\r | |
| 10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 12 | *\r | |
| 13 | **/\r | |
| 14 | \r | |
| 15 | #include "PrePi.h"\r | |
| 16 | \r | |
| 17 | #include <Chipset/AArch64.h>\r | |
| 18 | \r | |
| 19 | VOID\r | |
| 20 | ArchInitialize (\r | |
| 21 | VOID\r | |
| 22 | )\r | |
| 23 | {\r | |
| 24 | // Enable Floating Point\r | |
| 25 | if (FixedPcdGet32 (PcdVFPEnabled)) {\r | |
| 26 | ArmEnableVFP ();\r | |
| 27 | }\r | |
| 28 | \r | |
| 29 | if (ArmReadCurrentEL () == AARCH64_EL2) {\r | |
| 30 | // Trap General Exceptions. All exceptions that would be routed to EL1 are routed to EL2\r | |
| 31 | ArmWriteHcr (ARM_HCR_TGE);\r | |
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32 | \r |
| 33 | /* Enable Timer access for non-secure EL1 and EL0\r | |
| 34 | The cnthctl_el2 register bits are architecturally\r | |
| 35 | UNKNOWN on reset.\r | |
| 36 | Disable event stream as it is not in use at this stage\r | |
| 37 | */\r | |
| 38 | ArmWriteCntHctl (CNTHCTL_EL2_EL1PCTEN | CNTHCTL_EL2_EL1PCEN);\r | |
| 1bc83266 HL |
39 | }\r |
| 40 | }\r |