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//
// Copyright (c) 2011, ARM Limited. All rights reserved.
//
// 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.
//
//
#include <AsmMacroIoLib.h>
#include <Base.h>
#include <Library/PcdLib.h>
#include <Chipset/ArmV7.h>
#include <AutoGen.h>
INCLUDE AsmMacroIoLib.inc
EXPORT ArmIsScuEnable
EXPORT ArmGetScuBaseAddress
AREA ArmV7MPCore, CODE, READONLY
// IN None
// OUT r0 = SCU Base Address
ArmGetScuBaseAddress
// Read Configuration Base Address Register. ArmCBar cannot be called to get
// the Configuration BAR as a stack is not necessary setup. The SCU is at the
// offset 0x0000 from the Private Memory Region.
mrc p15, 4, r0, c15, c0, 0
bx\s\slr
// IN None
// OUT r1 = SCU enabled (boolean)
ArmIsScuEnable
// Read Configuration Base Address Register. ArmCBar cannot be called to get
// the Configuration BAR as a stack is not necessary setup. The SCU is at the
// offset 0x0000 from the Private Memory Region.
mrc p15, 4, r0, c15, c0, 0
add r1, r0, #SCU_CONTROL_OFFSET
ldr r1, [r1]
and r1, r1, #1
bx lr
END
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