1 /** @file 2 Template library implementation to support ResetSystem Runtime call. 3 4 Fill in the templates with what ever makes you system reset. 5 6 Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> 7 Copyright (c) 2013, ARM Ltd. All rights reserved.<BR> 8 9 This program and the accompanying materials 10 are licensed and made available under the terms and conditions of the BSD License 11 which accompanies this distribution. The full text of the license may be found at 12 http://opensource.org/licenses/bsd-license.php 13 14 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 15 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 16 17 **/ 18 19 #include <PiDxe.h> 20 21 #include <Library/BaseLib.h> 22 #include <Library/DebugLib.h> 23 #include <Library/EfiResetSystemLib.h> 24 #include <Library/ArmPlatformSysConfigLib.h> 25 26 #include <ArmPlatform.h> 27 28 /** 29 Resets the entire platform. 30 31 @param ResetType The type of reset to perform. 32 @param ResetStatus The status code for the reset. 33 @param DataSize The size, in bytes, of WatchdogData. 34 @param ResetData For a ResetType of EfiResetCold, EfiResetWarm, or 35 EfiResetShutdown the data buffer starts with a Null-terminated 36 Unicode string, optionally followed by additional binary data. 37 38 **/ 39 EFI_STATUS 40 EFIAPI 41 LibResetSystem ( 42 IN EFI_RESET_TYPE ResetType, 43 IN EFI_STATUS ResetStatus, 44 IN UINTN DataSize, 45 IN CHAR16 *ResetData OPTIONAL 46 ) 47 { 48 switch (ResetType) { 49 case EfiResetPlatformSpecific: 50 // Map the platform specific reset as reboot 51 case EfiResetWarm: 52 // Map a warm reset into a cold reset 53 case EfiResetCold: 54 // Send the REBOOT function to the platform microcontroller 55 ArmPlatformSysConfigSet (SYS_CFG_REBOOT, 0); 56 57 // We should never be here 58 while(1); 59 case EfiResetShutdown: 60 // Send the SHUTDOWN function to the platform microcontroller 61 ArmPlatformSysConfigSet (SYS_CFG_SHUTDOWN, 0); 62 63 // We should never be here 64 while(1); 65 } 66 67 ASSERT(FALSE); 68 return EFI_UNSUPPORTED; 69 } 70 71 /** 72 Initialize any infrastructure required for LibResetSystem () to function. 73 74 @param ImageHandle The firmware allocated handle for the EFI image. 75 @param SystemTable A pointer to the EFI System Table. 76 77 @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS. 78 79 **/ 80 EFI_STATUS 81 EFIAPI 82 LibInitializeResetSystem ( 83 IN EFI_HANDLE ImageHandle, 84 IN EFI_SYSTEM_TABLE *SystemTable 85 ) 86 { 87 return EFI_SUCCESS; 88 } 89
