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a3f98646 | 1 | /** @file |
2 | ||
3 | Copyright (c) 2008-2009, Apple Inc. All rights reserved. | |
4 | ||
5 | All rights reserved. This program and the accompanying materials | |
6 | are licensed and made available under the terms and conditions of the BSD License | |
7 | which accompanies this distribution. The full text of the license may be found at | |
8 | http://opensource.org/licenses/bsd-license.php | |
9 | ||
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | ||
13 | **/ | |
14 | ||
15 | #include <Uefi.h> | |
16 | ||
17 | #include <Library/ArmLib.h> | |
18 | #include <Library/CacheMaintenanceLib.h> | |
19 | #include <Library/MemoryAllocationLib.h> | |
20 | #include <Library/IoLib.h> | |
21 | #include <Library/PcdLib.h> | |
22 | #include <Library/DebugLib.h> | |
23 | #include <Library/UefiBootServicesTableLib.h> | |
24 | #include <Library/BeagleBoardSystemLib.h> | |
25 | ||
26 | #include <Omap3530/Omap3530.h> | |
27 | ||
28 | VOID | |
29 | ResetSystem ( | |
30 | IN EFI_RESET_TYPE ResetType | |
31 | ) | |
32 | { | |
33 | switch (ResetType) { | |
34 | case EfiResetWarm: | |
35 | //Perform warm reset of the system. | |
36 | GoLittleEndian(PcdGet32(PcdFlashFvMainBase)); | |
37 | break; | |
38 | case EfiResetCold: | |
39 | case EfiResetShutdown: | |
40 | default: | |
41 | //Perform cold reset of the system. | |
43263288 | 42 | MmioOr32 (PRM_RSTCTRL, RST_DPLL3); |
43 | while ((MmioRead32 (PRM_RSTST) & GLOBAL_COLD_RST) != 0x1); | |
a3f98646 | 44 | break; |
45 | } | |
46 | ||
47 | //Should never come here. | |
48 | ASSERT(FALSE); | |
49 | } | |
50 | ||
51 | VOID | |
52 | ShutdownEfi ( | |
53 | VOID | |
54 | ) | |
55 | { | |
56 | EFI_STATUS Status; | |
57 | UINTN MemoryMapSize; | |
58 | EFI_MEMORY_DESCRIPTOR *MemoryMap; | |
59 | UINTN MapKey; | |
60 | UINTN DescriptorSize; | |
61 | UINTN DescriptorVersion; | |
62 | UINTN Pages; | |
63 | ||
64 | MemoryMap = NULL; | |
65 | MemoryMapSize = 0; | |
66 | do { | |
67 | Status = gBS->GetMemoryMap ( | |
68 | &MemoryMapSize, | |
69 | MemoryMap, | |
70 | &MapKey, | |
71 | &DescriptorSize, | |
72 | &DescriptorVersion | |
73 | ); | |
74 | if (Status == EFI_BUFFER_TOO_SMALL) { | |
75 | ||
76 | Pages = EFI_SIZE_TO_PAGES (MemoryMapSize) + 1; | |
77 | MemoryMap = AllocatePages (Pages); | |
78 | ||
79 | // | |
80 | // Get System MemoryMap | |
81 | // | |
82 | Status = gBS->GetMemoryMap ( | |
83 | &MemoryMapSize, | |
84 | MemoryMap, | |
85 | &MapKey, | |
86 | &DescriptorSize, | |
87 | &DescriptorVersion | |
88 | ); | |
89 | // Don't do anything between the GetMemoryMap() and ExitBootServices() | |
90 | if (!EFI_ERROR (Status)) { | |
91 | Status = gBS->ExitBootServices (gImageHandle, MapKey); | |
92 | if (EFI_ERROR (Status)) { | |
93 | FreePages (MemoryMap, Pages); | |
94 | MemoryMap = NULL; | |
95 | MemoryMapSize = 0; | |
96 | } | |
97 | } | |
98 | } | |
99 | } while (EFI_ERROR (Status)); | |
100 | ||
101 | //Clean and invalidate caches. | |
102 | WriteBackInvalidateDataCache(); | |
103 | InvalidateInstructionCache(); | |
104 | ||
105 | //Turning off Caches and MMU | |
106 | ArmDisableDataCache(); | |
107 | ArmDisableInstructionCache(); | |
108 | ArmDisableMmu(); | |
109 | } | |
110 |