2ef2b01e07
ArmPkg - Supoprt for ARM specific things that can change as the architecture changes. Plus semihosting JTAG drivers. EmbeddedPkg - Generic support for an embeddded platform. Including a light weight command line shell. BeagleBoardPkg - Platform specifics for BeagleBoard. SD Card works, but USB has issues. Looks like a bug in the open source USB stack (Our internal stack works fine). git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9518 6f19259b-4bc3-4df7-8a09-765794883524
155 lines
3.5 KiB
C
155 lines
3.5 KiB
C
/** @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 "CpuDxe.h"
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EFI_STATUS
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EFIAPI
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CpuFlushCpuDataCache (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_PHYSICAL_ADDRESS Start,
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IN UINT64 Length,
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IN EFI_CPU_FLUSH_TYPE FlushType
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)
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{
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switch (FlushType) {
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case EfiCpuFlushTypeWriteBack:
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WriteBackDataCacheRange((VOID *)(UINTN)Start, (UINTN)Length);
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break;
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case EfiCpuFlushTypeInvalidate:
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InvalidateDataCacheRange((VOID *)(UINTN)Start, (UINTN)Length);
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break;
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case EfiCpuFlushTypeWriteBackInvalidate:
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WriteBackInvalidateDataCacheRange((VOID *)(UINTN)Start, (UINTN)Length);
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break;
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default:
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return EFI_INVALID_PARAMETER;
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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CpuEnableInterrupt (
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IN EFI_CPU_ARCH_PROTOCOL *This
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)
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{
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if (ArmProcessorMode() != ARM_PROCESSOR_MODE_IRQ) {
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ArmEnableInterrupts();
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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CpuDisableInterrupt (
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IN EFI_CPU_ARCH_PROTOCOL *This
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)
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{
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if (ArmProcessorMode() != ARM_PROCESSOR_MODE_IRQ) {
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ArmDisableInterrupts();
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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CpuGetInterruptState (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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OUT BOOLEAN *State
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)
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{
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if (State == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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*State = ArmGetInterruptState();
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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CpuInit (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_CPU_INIT_TYPE InitType
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)
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{
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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CpuRegisterInterruptHandler (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_EXCEPTION_TYPE InterruptType,
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IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
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)
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{
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return RegisterInterruptHandler(InterruptType, InterruptHandler);
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}
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EFI_STATUS
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EFIAPI
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CpuGetTimerValue (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN UINT32 TimerIndex,
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OUT UINT64 *TimerValue,
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OUT UINT64 *TimerPeriod OPTIONAL
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)
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{
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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CpuSetMemoryAttributes (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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IN UINT64 Attributes
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)
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{
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return EFI_UNSUPPORTED;
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}
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//
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// Globals used to initialize the protocol
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//
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EFI_HANDLE mCpuHandle = NULL;
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EFI_CPU_ARCH_PROTOCOL mCpu = {
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CpuFlushCpuDataCache,
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CpuEnableInterrupt,
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CpuDisableInterrupt,
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CpuGetInterruptState,
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CpuInit,
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CpuRegisterInterruptHandler,
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CpuGetTimerValue,
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CpuSetMemoryAttributes,
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0, // NumberOfTimers
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4, // DmaBufferAlignment
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};
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EFI_STATUS
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CpuDxeInitialize (
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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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InitializeExceptions(&mCpu);
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return gBS->InstallMultipleProtocolInterfaces(&mCpuHandle, &gEfiCpuArchProtocolGuid, &mCpu, NULL);
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}
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