audk/ArmPkg/Drivers/ArmGic/ArmGicDxe.c

60 lines
1.6 KiB
C

/*++
Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
ArmGicDxe.c
Abstract:
Driver implementing the GIC interrupt controller protocol
--*/
#include <PiDxe.h>
#include "ArmGicDxe.h"
/**
Initialize the state information for the CPU Architectural Protocol
@param ImageHandle of the loaded driver
@param SystemTable Pointer to the System Table
@retval EFI_SUCCESS Protocol registered
@retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure
@retval EFI_DEVICE_ERROR Hardware problems
@retval EFI_UNSUPPORTED GIC version not supported
**/
EFI_STATUS
InterruptDxeInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
ARM_GIC_ARCH_REVISION Revision;
Revision = ArmGicGetSupportedArchRevision ();
if (Revision == ARM_GIC_ARCH_REVISION_2) {
Status = GicV2DxeInitialize (ImageHandle, SystemTable);
} else if (Revision == ARM_GIC_ARCH_REVISION_3) {
Status = GicV3DxeInitialize (ImageHandle, SystemTable);
} else {
Status = EFI_UNSUPPORTED;
}
return Status;
}