1 /** @file
2
3 Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
4
5
6 This program and the accompanying materials are licensed and made available under
7
8 the terms and conditions of the BSD License that accompanies this distribution.
9
10 The full text of the license may be found at
11
12 http://opensource.org/licenses/bsd-license.php.
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14
15
16 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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18 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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20
21
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23 Module Name:
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25
26 PlatformSsaInitPeim.c
27
28 Abstract:
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30
PlatformSsaInit(IN SYSTEM_CONFIGURATION * SystemConfiguration,IN CONST EFI_PEI_SERVICES ** PeiServices)31 --*/
32
33 #include "PlatformEarlyInit.h"
34
35 /**
36 Perform SSA related platform initialization.
37
38 **/
39 VOID
40 PlatformSsaInit (
41 IN SYSTEM_CONFIGURATION *SystemConfiguration,
42 IN CONST EFI_PEI_SERVICES **PeiServices
43 )
44 {
45
46 DEBUG ((EFI_D_ERROR, "PlatformSsaInit() - Start\n"));
47 DEBUG ((EFI_D_ERROR, "PlatformSsaInit() - SystemConfiguration->ISPDevSel 0x%x\n",SystemConfiguration->ISPDevSel));
48 if(SystemConfiguration->ISPDevSel == 0x02)
49 {
50 //
51 // Device 3 Interrupt Route
52 //
53 MmioWrite16 (
54 (ILB_BASE_ADDRESS + R_PCH_ILB_D3IR),
55 V_PCH_ILB_DXXIR_IAR_PIRQH // For IUNIT
56 );
57 MmioRead16(ILB_BASE_ADDRESS + R_PCH_ILB_D3IR); // Read Posted Writes Register
58 DEBUG ((EFI_D_ERROR, "PlatformSsaInit() - Device 3 Interrupt Route Done\n"));
59 }
60
61 //
62 // Device 2 Interrupt Route
63 //
64 MmioWrite16 (
65 (ILB_BASE_ADDRESS + R_PCH_ILB_D2IR),
66 V_PCH_ILB_DXXIR_IAR_PIRQA // For IGD
67 );
68 MmioRead16(ILB_BASE_ADDRESS + R_PCH_ILB_D2IR); // Read Posted Writes Register
69 DEBUG ((EFI_D_ERROR, "PlatformSsaInit() - Device 2 Interrupt Route Done\n"));
70
71 return;
72 }
73