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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
.text
.align 2
GCC_ASM_EXPORT(ArmIsScuEnable)
GCC_ASM_EXPORT(ArmGetScuBaseAddress)
# IN None
# OUT r0 = SCU Base Address
ASM_PFX(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)
ASM_PFX(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
ASM_FUNCTION_REMOVE_IF_UNREFERENCED
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