2011-09-27 18:33:20 +02:00
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/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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Copyright (c) 2011, ARM Limited. All rights reserved.
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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 <Chipset/ARM1176JZ-S.h>
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#include <Library/ArmLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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VOID
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EFIAPI
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ArmWriteVBar (
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IN UINT32 VectorBase
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)
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{
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ASSERT(FeaturePcdGet (PcdRelocateVectorTable) == TRUE);
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if (VectorBase == 0x0) {
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ArmSetLowVectors ();
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} else if (VectorBase == 0xFFFF0000) {
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ArmSetHighVectors ();
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} else {
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// Feature not supported by ARM11. The Vector Table is either at 0x0 or 0xFFFF0000
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ASSERT(0);
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}
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}
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UINT32
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EFIAPI
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ArmReadVBar (
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VOID
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)
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{
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ASSERT((FeaturePcdGet (PcdRelocateVectorTable) == TRUE) && ((PcdGet32 (PcdCpuVectorBaseAddress) == 0x0) || (PcdGet32 (PcdCpuVectorBaseAddress) == 0xFFFF0000)));
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return PcdGet32 (PcdCpuVectorBaseAddress);
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}
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