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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 | |
620f2891 TH |
76 | if (EFI_ERROR (Status) || VarSize != sizeof(SYSTEM_CONFIGURATION)) {\r |
77 | //The setup variable is corrupted\r | |
78 | VarSize = sizeof(SYSTEM_CONFIGURATION);\r | |
79 | Status = gRT->GetVariable(\r | |
80 | L"SetupRecovery",\r | |
81 | &gEfiNormalSetupGuid,\r | |
82 | NULL,\r | |
83 | &VarSize,\r | |
84 | &SystemConfiguration\r | |
85 | );\r | |
86 | ASSERT_EFI_ERROR (Status);\r | |
87 | } \r | |
3cbfba02 DW |
88 | \r |
89 | if (SystemConfiguration.ExISupport == 1) {\r | |
90 | MmioOr32 ((UINTN) (GetPmcBase() + R_PCH_PMC_MTPMC1), (UINT32) BIT0+BIT1+BIT2);\r | |
91 | } else if (SystemConfiguration.ExISupport == 0) {\r | |
92 | MmioAnd32 ((UINTN) (GetPmcBase() + R_PCH_PMC_MTPMC1), ~((UINT32) BIT0+BIT1+BIT2)); //clear bit 0,1,2\r | |
93 | }\r | |
94 | }\r |