2011-09-27 18:26:03 +02:00
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//
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2012-05-02 21:55:32 +02:00
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// Copyright (c) 2011-2012, ARM Limited. All rights reserved.
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2011-09-27 18:26:03 +02:00
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//
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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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//
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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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//
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2011-11-02 00:32:04 +01:00
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#include <AsmMacroIoLib.h>
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2011-09-27 18:26:03 +02:00
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#include <Library/ArmCpuLib.h>
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#include <Chipset/ArmCortexA9.h>
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.text
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.align 3
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GCC_ASM_EXPORT(ArmGetScuBaseAddress)
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// IN None
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// OUT r0 = SCU Base Address
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ASM_PFX(ArmGetScuBaseAddress):
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// Read Configuration Base Address Register. ArmCBar cannot be called to get
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// the Configuration BAR as a stack is not necessary setup. The SCU is at the
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// offset 0x0000 from the Private Memory Region.
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mrc p15, 4, r0, c15, c0, 0
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bx lr
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