mirror of https://github.com/acidanthera/audk.git
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/** @file
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Template library implementation to support ResetSystem Runtime call.
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Fill in the templates with what ever makes you system reset.
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Copyright (c) 2008-2009, Apple Inc. All rights reserved.
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include <Library/PcdLib.h>
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#include <Library/ArmLib.h>
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#include <Library/CacheMaintenanceLib.h>
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#include <Library/DebugLib.h>
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#include <Library/EfiResetSystemLib.h>
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/**
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Resets the entire platform.
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@param ResetType The type of reset to perform.
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@param ResetStatus The status code for the reset.
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@param DataSize The size, in bytes, of WatchdogData.
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@param ResetData For a ResetType of EfiResetCold, EfiResetWarm, or
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EfiResetShutdown the data buffer starts with a Null-terminated
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Unicode string, optionally followed by additional binary data.
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**/
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EFI_STATUS
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EFIAPI
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LibResetSystem (
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IN EFI_RESET_TYPE ResetType,
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IN EFI_STATUS ResetStatus,
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IN UINTN DataSize,
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IN CHAR16 *ResetData OPTIONAL
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)
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{
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if (ResetData != NULL) {
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DEBUG((EFI_D_ERROR, "%s", ResetData));
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}
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switch (ResetType) {
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case EfiResetWarm:
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// Map a warm reset into a cold reset
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case EfiResetCold:
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case EfiResetShutdown:
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default:
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// Perform cold reset of the system.
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MmioOr32 (PRM_RSTCTRL, RST_DPLL3);
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while ((MmioRead32 (PRM_RSTST) & GLOBAL_COLD_RST) != 0x1);
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break;
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}
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// If the reset didn't work, return an error.
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ASSERT (FALSE);
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return EFI_DEVICE_ERROR;
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}
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/**
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Initialize any infrastructure required for LibResetSystem () to function.
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@param ImageHandle The firmware allocated handle for the EFI image.
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@param SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
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**/
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EFI_STATUS
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EFIAPI
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LibInitializeResetSystem (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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return EFI_SUCCESS;
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}
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