projects / mirror_edk2.git / blame
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|---|---|---|
| 3cbfba02 DW |
1 | /** @file\r |
| 2 | \r | |
| 3 | Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
| 4 | \r\r | |
| 5 | This program and the accompanying materials are licensed and made available under\r\r | |
| 6 | the terms and conditions of the BSD License that accompanies this distribution. \r\r | |
| 7 | The full text of the license may be found at \r\r | |
| 8 | http://opensource.org/licenses/bsd-license.php. \r\r | |
| 9 | \r\r | |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r\r | |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r\r | |
| 12 | \r\r | |
| 13 | \r | |
| 14 | Module Name:\r | |
| 15 | \r | |
| 16 | \r | |
| 17 | ExI.c\r | |
| 18 | \r | |
| 19 | Abstract:\r | |
| 20 | \r | |
| 21 | ExI configuration based on setup option\r | |
| 22 | \r | |
| 23 | \r | |
| 24 | --*/\r | |
| 25 | \r | |
| 26 | \r | |
| 27 | #include "PlatformDxe.h"\r | |
| 28 | \r | |
| 29 | #define PchLpcPciCfg32(Register) MmioRead32 (MmPciAddress (0, DEFAULT_PCI_BUS_NUMBER_PCH, PCI_DEVICE_NUMBER_PCH_LPC, 0, Register))\r | |
| 30 | \r | |
| 31 | //\r | |
| 32 | // Procedure: GetPmcBase\r | |
| 33 | //\r | |
| 34 | // Description: This function read content of B:D:F 0:31:0, offset 44h (for\r | |
| 35 | // PmcBase)\r | |
| 36 | //\r | |
| 37 | // Input: None\r | |
| 38 | //\r | |
| 39 | // Output: 32 bit PmcBase\r | |
| 40 | //\r | |
| 41 | UINT32\r | |
| 42 | GetPmcBase (\r | |
| 43 | VOID\r | |
| 44 | )\r | |
| 45 | {\r | |
| 46 | return (PchLpcPciCfg32 (R_PCH_LPC_PMC_BASE) & B_PCH_LPC_PMC_BASE_BAR);\r | |
| 47 | }\r | |
| 48 | \r | |
| 49 | /**\r | |
| 50 | Configure ExI.\r | |
| 51 | \r | |
| 52 | @param ImageHandle Pointer to the loaded image protocol for this driver\r | |
| 53 | @param SystemTable Pointer to the EFI System Table\r | |
| 54 | \r | |
| 55 | @retval EFI_SUCCESS The driver initializes correctly.\r | |
| 56 | **/\r | |
| 57 | VOID\r | |
| 58 | InitExI (\r | |
| 59 | )\r | |
| 60 | {\r | |
| 61 | EFI_STATUS Status;\r | |
| 62 | \r | |
| 63 | SYSTEM_CONFIGURATION SystemConfiguration;\r | |
| 64 | UINTN VarSize;\r | |
| 65 | \r | |
| 66 | VarSize = sizeof(SYSTEM_CONFIGURATION);\r | |
| 67 | \r | |
| 68 | Status = gRT->GetVariable(\r | |
| 69 | L"Setup",\r | |
| 70 | &gEfiNormalSetupGuid,\r | |
| 71 | NULL,\r | |
| 72 | &VarSize,\r | |
| 73 | &SystemConfiguration\r | |
| 74 | );\r | |
| 75 | \r | |
| 76 | ASSERT_EFI_ERROR(Status);\r | |
| 77 | \r | |
| 78 | if (SystemConfiguration.ExISupport == 1) {\r | |
| 79 | MmioOr32 ((UINTN) (GetPmcBase() + R_PCH_PMC_MTPMC1), (UINT32) BIT0+BIT1+BIT2);\r | |
| 80 | } else if (SystemConfiguration.ExISupport == 0) {\r | |
| 81 | MmioAnd32 ((UINTN) (GetPmcBase() + R_PCH_PMC_MTPMC1), ~((UINT32) BIT0+BIT1+BIT2)); //clear bit 0,1,2\r | |
| 82 | }\r | |
| 83 | }\r |