mirror of https://github.com/acidanthera/audk.git
111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
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/** @file
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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 <Uefi.h>
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#include <Library/ArmLib.h>
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#include <Library/CacheMaintenanceLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/IoLib.h>
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#include <Library/PcdLib.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/BeagleBoardSystemLib.h>
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#include <Omap3530/Omap3530.h>
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VOID
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ResetSystem (
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IN EFI_RESET_TYPE ResetType
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)
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{
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switch (ResetType) {
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case EfiResetWarm:
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//Perform warm reset of the system.
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GoLittleEndian(PcdGet32(PcdFlashFvMainBase));
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break;
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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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//Should never come here.
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ASSERT(FALSE);
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}
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VOID
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ShutdownEfi (
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VOID
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)
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{
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EFI_STATUS Status;
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UINTN MemoryMapSize;
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EFI_MEMORY_DESCRIPTOR *MemoryMap;
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UINTN MapKey;
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UINTN DescriptorSize;
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UINTN DescriptorVersion;
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UINTN Pages;
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MemoryMap = NULL;
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MemoryMapSize = 0;
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do {
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Status = gBS->GetMemoryMap (
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&MemoryMapSize,
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MemoryMap,
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&MapKey,
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&DescriptorSize,
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&DescriptorVersion
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);
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if (Status == EFI_BUFFER_TOO_SMALL) {
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Pages = EFI_SIZE_TO_PAGES (MemoryMapSize) + 1;
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MemoryMap = AllocatePages (Pages);
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//
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// Get System MemoryMap
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//
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Status = gBS->GetMemoryMap (
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&MemoryMapSize,
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MemoryMap,
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&MapKey,
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&DescriptorSize,
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&DescriptorVersion
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);
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// Don't do anything between the GetMemoryMap() and ExitBootServices()
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if (!EFI_ERROR (Status)) {
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Status = gBS->ExitBootServices (gImageHandle, MapKey);
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if (EFI_ERROR (Status)) {
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FreePages (MemoryMap, Pages);
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MemoryMap = NULL;
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MemoryMapSize = 0;
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}
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}
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}
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} while (EFI_ERROR (Status));
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//Clean and invalidate caches.
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WriteBackInvalidateDataCache();
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InvalidateInstructionCache();
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//Turning off Caches and MMU
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ArmDisableDataCache();
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ArmDisableInstructionCache();
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ArmDisableMmu();
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}
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