Adding support for BeagleBoard.
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
This commit is contained in:
AJFISH
247
ArmPkg/Drivers/CpuDxe/DebugSupport.c
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247
ArmPkg/Drivers/CpuDxe/DebugSupport.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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/** @file
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DXE Cpu Driver.
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May need some porting work for platform specifics.
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Copyright (c) 2008, Apple Inc
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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_PERIODIC_CALLBACK gPeriodicCallBack = (EFI_PERIODIC_CALLBACK)NULL;
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EFI_DEBUG_SUPPORT_PERIODIC_CALLBACK_PROTOCOL *gDebugSupportCallback = NULL;
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EFI_STATUS
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EFIAPI
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DebugSupportGetMaximumProcessorIndex (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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OUT UINTN *MaxProcessorIndex
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)
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/*++
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Routine Description: This is a DebugSupport protocol member function.
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Arguments:
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This - The DebugSupport instance
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MaxProcessorIndex - The maximuim supported processor index
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Returns:
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Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
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--*/
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{
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*MaxProcessorIndex = 0;
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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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DebugSupportRegisterPeriodicCallback (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN EFI_PERIODIC_CALLBACK PeriodicCallback
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)
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/*++
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Routine Description: This is a DebugSupport protocol member function.
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Arguments:
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This - The DebugSupport instance
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ProcessorIndex - Which processor the callback applies to.
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PeriodicCallback - Callback function
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Returns:
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EFI_SUCCESS
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EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
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no handler registered for it
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EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
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Other possible return values are passed through from UnHookEntry and HookEntry.
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--*/
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{
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if (ProcessorIndex != 0) {
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return EFI_INVALID_PARAMETER;
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}
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if ((gPeriodicCallBack != (EFI_PERIODIC_CALLBACK)NULL) && (PeriodicCallback != (EFI_PERIODIC_CALLBACK)NULL)) {
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return EFI_ALREADY_STARTED;
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}
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gPeriodicCallBack = PeriodicCallback;
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if (gDebugSupportCallback != NULL) {
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//
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// We can only update this protocol if the Register Protocol Notify has fired. If it fires
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// after this call it will update with gPeriodicCallBack value.
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//
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gDebugSupportCallback->PeriodicCallback = gPeriodicCallBack;
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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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DebugSupportRegisterExceptionCallback (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN EFI_EXCEPTION_CALLBACK NewCallback,
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IN EFI_EXCEPTION_TYPE ExceptionType
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)
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/*++
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Routine Description:
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This is a DebugSupport protocol member function.
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This code executes in boot services context.
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Arguments:
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This - The DebugSupport instance
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ProcessorIndex - Which processor the callback applies to.
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NewCallback - Callback function
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ExceptionType - Which exception to hook
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Returns:
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EFI_SUCCESS
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EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
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no handler registered for it
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EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
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Other possible return values are passed through from UnHookEntry and HookEntry.
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--*/
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{
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if (ProcessorIndex != 0) {
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return EFI_INVALID_PARAMETER;
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}
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return RegisterDebuggerInterruptHandler (ExceptionType, NewCallback);
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}
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EFI_STATUS
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EFIAPI
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DebugSupportInvalidateInstructionCache (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN VOID *Start,
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IN UINT64 Length
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)
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/*++
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Routine Description:
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This is a DebugSupport protocol member function.
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Calls assembly routine to flush cache.
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Arguments:
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This - The DebugSupport instance
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ProcessorIndex - Which processor the callback applies to.
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Start - Physical base of the memory range to be invalidated
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Length - mininum number of bytes in instruction cache to invalidate
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Returns:
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EFI_SUCCESS - always return success
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--*/
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{
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if (ProcessorIndex != 0) {
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return EFI_INVALID_PARAMETER;
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}
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InvalidateInstructionCache();
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return EFI_SUCCESS;
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}
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//
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// This is a global that is the actual interface
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//
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EFI_DEBUG_SUPPORT_PROTOCOL gDebugSupportProtocolInterface = {
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IsaArm, // Fixme to be more generic
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DebugSupportGetMaximumProcessorIndex,
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DebugSupportRegisterPeriodicCallback,
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DebugSupportRegisterExceptionCallback,
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DebugSupportInvalidateInstructionCache
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};
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VOID
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EFIAPI
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DebugSupportPeriodicCallbackEventProtocolNotify (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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EFI_STATUS Status;
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Status = gBS->LocateProtocol (&gEfiDebugSupportPeriodicCallbackProtocolGuid, NULL, (VOID **)&gDebugSupportCallback);
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if (!EFI_ERROR (Status)) {
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gDebugSupportCallback->PeriodicCallback = gPeriodicCallBack;
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}
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}
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VOID *gRegistration = NULL;
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EFI_DEBUG_SUPPORT_PROTOCOL *
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InitilaizeDebugSupport (
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VOID
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)
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{
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// RPN gEfiDebugSupportPeriodicCallbackProtocolGuid
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EFI_STATUS Status;
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EFI_EVENT Event;
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if (!FeaturePcdGet (PcdCpuDxeProduceDebugSupport)) {
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// Don't include this code unless Feature Flag is set
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return NULL;
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}
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Status = gBS->CreateEvent (
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EVT_NOTIFY_SIGNAL,
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TPL_CALLBACK,
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DebugSupportPeriodicCallbackEventProtocolNotify,
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NULL,
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&Event
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);
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ASSERT_EFI_ERROR (Status);
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Status = gBS->RegisterProtocolNotify (&gEfiDebugSupportPeriodicCallbackProtocolGuid, Event, &gRegistration);
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ASSERT_EFI_ERROR (Status);
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//
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// We assume the Timer must depend on our driver to register interrupts so we don't need to do
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// a gBS->SignalEvent (Event) here to check to see if the protocol allready exists
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//
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return &gDebugSupportProtocolInterface;
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}
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