projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 1bc83266 | 1 | /** @file\r |
| 5a5440d0 PG |
2 | \r |
| 3 | Copyright (c) 2011-2017, ARM Limited. All rights reserved.\r | |
| 4 | \r | |
| 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
| 6 | \r | |
| 1bc83266 HL |
7 | **/\r |
| 8 | \r | |
| 9 | #include "PrePi.h"\r | |
| 10 | \r | |
| 11 | #include <Chipset/AArch64.h>\r | |
| 12 | \r | |
| 13 | VOID\r | |
| 14 | ArchInitialize (\r | |
| 15 | VOID\r | |
| 16 | )\r | |
| 17 | {\r | |
| 18 | // Enable Floating Point\r | |
| 19 | if (FixedPcdGet32 (PcdVFPEnabled)) {\r | |
| 20 | ArmEnableVFP ();\r | |
| 21 | }\r | |
| 22 | \r | |
| 23 | if (ArmReadCurrentEL () == AARCH64_EL2) {\r | |
| 24 | // Trap General Exceptions. All exceptions that would be routed to EL1 are routed to EL2\r | |
| 25 | ArmWriteHcr (ARM_HCR_TGE);\r | |
| 0e077330 SM |
26 | \r |
| 27 | /* Enable Timer access for non-secure EL1 and EL0\r | |
| 28 | The cnthctl_el2 register bits are architecturally\r | |
| 29 | UNKNOWN on reset.\r | |
| 30 | Disable event stream as it is not in use at this stage\r | |
| 31 | */\r | |
| 32 | ArmWriteCntHctl (CNTHCTL_EL2_EL1PCTEN | CNTHCTL_EL2_EL1PCEN);\r | |
| 1bc83266 HL |
33 | }\r |
| 34 | }\r |