projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| dff72027 OM |
1 | /** @file\r |
| 2 | \r | |
| 3 | Copyright (c) 2014-2015, ARM Ltd. All rights reserved.\r | |
| 4 | \r | |
| 5 | This program and the accompanying materials are licensed and made available\r | |
| 6 | under the terms and conditions of the BSD License which accompanies this\r | |
| 7 | 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, WITHOUT\r | |
| 11 | WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 12 | \r | |
| 13 | **/\r | |
| 14 | \r | |
| 15 | #include "ArmVExpressInternal.h"\r | |
| 16 | \r | |
| 17 | //\r | |
| 18 | // Description of the two AARCH64 model platforms :\r | |
| 19 | // just the platform id for the time being.\r | |
| 20 | // Platform ids are defined in ArmVExpressInternal.h for\r | |
| 21 | // all "ArmVExpress-like" platforms (AARCH64 or ARM architecture,\r | |
| 22 | // model or hardware platforms).\r | |
| 23 | //\r | |
| 24 | CONST ARM_VEXPRESS_PLATFORM ArmVExpressPlatforms[] = {\r | |
| 25 | { ARM_FVP_VEXPRESS_AEMv8x4 },\r | |
| 26 | { ARM_FVP_BASE_AEMv8x4_AEMv8x4 },\r | |
| 27 | { ARM_FVP_FOUNDATION },\r | |
| 28 | { ARM_FVP_VEXPRESS_UNKNOWN }\r | |
| 29 | };\r | |
| 30 | \r | |
| 31 | /**\r | |
| 32 | Get information about the VExpress platform the firmware is running on.\r | |
| 33 | \r | |
| 34 | @param[out] Platform Address where the pointer to the platform information\r | |
| 35 | (type ARM_VEXPRESS_PLATFORM*) should be stored.\r | |
| 36 | The returned pointer does not point to an allocated\r | |
| 37 | memory area.\r | |
| 38 | \r | |
| 39 | @retval EFI_SUCCESS The platform information was returned.\r | |
| 40 | @retval EFI_NOT_FOUND The platform was not recognised.\r | |
| 41 | \r | |
| 42 | **/\r | |
| 43 | EFI_STATUS\r | |
| 44 | ArmVExpressGetPlatform (\r | |
| 45 | OUT CONST ARM_VEXPRESS_PLATFORM** Platform\r | |
| 46 | )\r | |
| 47 | {\r | |
| 48 | EFI_STATUS Status;\r | |
| 49 | UINT32 SysId;\r | |
| 50 | \r | |
| 51 | ASSERT (Platform != NULL);\r | |
| 52 | \r | |
| 53 | Status = EFI_NOT_FOUND;\r | |
| 54 | \r | |
| 55 | SysId = MmioRead32 (ARM_VE_SYS_ID_REG);\r | |
| 56 | if (SysId != ARM_RTSM_SYS_ID) {\r | |
| 57 | // Take out the FVP GIC variant to reduce the permutations. The GIC driver\r | |
| 58 | // detects the version and does the right thing.\r | |
| 59 | SysId &= ~ARM_FVP_SYS_ID_VARIANT_MASK;\r | |
| 60 | if (SysId == (ARM_FVP_BASE_SYS_ID & ~ARM_FVP_SYS_ID_VARIANT_MASK)) {\r | |
| 61 | Status = ArmVExpressGetPlatformFromId (ARM_FVP_BASE_AEMv8x4_AEMv8x4, Platform);\r | |
| 62 | } else if (SysId == (ARM_FVP_FOUNDATION_SYS_ID & ~ARM_FVP_SYS_ID_VARIANT_MASK)) {\r | |
| 63 | Status = ArmVExpressGetPlatformFromId (ARM_FVP_FOUNDATION, Platform);\r | |
| 64 | }\r | |
| 65 | } else {\r | |
| 66 | Status = ArmVExpressGetPlatformFromId (ARM_FVP_VEXPRESS_AEMv8x4, Platform);\r | |
| 67 | }\r | |
| 68 | \r | |
| 69 | if (EFI_ERROR (Status)) {\r | |
| 70 | DEBUG ((EFI_D_ERROR, "Unsupported AArch64 RTSM (SysId:0x%X).\n", SysId));\r | |
| 71 | ASSERT_EFI_ERROR (Status);\r | |
| 72 | }\r | |
| 73 | \r | |
| 74 | return Status;\r | |
| 75 | }\r |