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1 | /** @file\r | |
2 | Template library implementation to support ResetSystem Runtime call.\r | |
3 | \r | |
4 | Fill in the templates with what ever makes you system reset.\r | |
5 | \r | |
6 | \r | |
7 | Copyright (c) 2008-2009, Apple Inc. All rights reserved.\r | |
8 | \r | |
9 | All rights reserved. This program and the accompanying materials\r | |
10 | are licensed and made available under the terms and conditions of the BSD License\r | |
11 | which accompanies this distribution. The full text of the license may be found at\r | |
12 | http://opensource.org/licenses/bsd-license.php\r | |
13 | \r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
16 | \r | |
17 | **/\r | |
18 | \r | |
19 | \r | |
20 | #include <PiDxe.h>\r | |
21 | \r | |
22 | #include <Library/PcdLib.h>\r | |
23 | #include <Library/ArmLib.h>\r | |
24 | #include <Library/CacheMaintenanceLib.h>\r | |
25 | #include <Library/DebugLib.h>\r | |
26 | #include <Library/EfiResetSystemLib.h>\r | |
27 | \r | |
28 | #include <Library/BeagleBoardSystemLib.h>\r | |
29 | \r | |
30 | /**\r | |
31 | Resets the entire platform.\r | |
32 | \r | |
33 | @param ResetType The type of reset to perform.\r | |
34 | @param ResetStatus The status code for the reset.\r | |
35 | @param DataSize The size, in bytes, of WatchdogData.\r | |
36 | @param ResetData For a ResetType of EfiResetCold, EfiResetWarm, or\r | |
37 | EfiResetShutdown the data buffer starts with a Null-terminated\r | |
38 | Unicode string, optionally followed by additional binary data.\r | |
39 | \r | |
40 | **/\r | |
41 | EFI_STATUS\r | |
42 | EFIAPI\r | |
43 | LibResetSystem (\r | |
44 | IN EFI_RESET_TYPE ResetType,\r | |
45 | IN EFI_STATUS ResetStatus,\r | |
46 | IN UINTN DataSize,\r | |
47 | IN CHAR16 *ResetData OPTIONAL\r | |
48 | )\r | |
49 | {\r | |
50 | if (ResetData != NULL) {\r | |
51 | DEBUG((EFI_D_ERROR, "%s", ResetData));\r | |
52 | }\r | |
53 | \r | |
54 | switch (ResetType) {\r | |
55 | case EfiResetWarm:\r | |
56 | // Map a warm reset into a cold reset\r | |
57 | case EfiResetCold:\r | |
58 | case EfiResetShutdown:\r | |
59 | default:\r | |
60 | // Perform cold reset of the system.\r | |
61 | MmioOr32 (PRM_RSTCTRL, RST_DPLL3);\r | |
62 | while ((MmioRead32 (PRM_RSTST) & GLOBAL_COLD_RST) != 0x1);\r | |
63 | break;\r | |
64 | }\r | |
65 | \r | |
66 | // If the reset didn't work, return an error.\r | |
67 | ASSERT (FALSE);\r | |
68 | return EFI_DEVICE_ERROR;\r | |
69 | }\r | |
70 | \r | |
71 | \r | |
72 | \r | |
73 | /**\r | |
74 | Initialize any infrastructure required for LibResetSystem () to function.\r | |
75 | \r | |
76 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
77 | @param SystemTable A pointer to the EFI System Table.\r | |
78 | \r | |
79 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r | |
80 | \r | |
81 | **/\r | |
82 | EFI_STATUS\r | |
83 | EFIAPI\r | |
84 | LibInitializeResetSystem (\r | |
85 | IN EFI_HANDLE ImageHandle,\r | |
86 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
87 | )\r | |
88 | {\r | |
89 | return EFI_SUCCESS;\r | |
90 | }\r | |
91 | \r |