37 lines
876 B
ArmAsm
37 lines
876 B
ArmAsm
/*
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* Copyright (C) 2010-2011 Apple Inc. All rights reserved.
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*
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* This document is the property of Apple Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Inc.
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*/
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#include <arch/arm/assembler.h>
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.text
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ARM_FUNCTION _platform_start
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// Configure the first half of the cache as RAM
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mov r2, #0xFF000000 // L2CCONFIG0.AcpMask[7:0] = 0xFF
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orr r2, r2, #0x000F0000 // L2CCONFIG0.RamWayMask[7:0] = 0x0F
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orr r2, r2, #0x00000002 // L2CCONFIG0.RamEna = 1
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mcr p15, 1, r2, c15, c2, 0 // Write to L2CCONFIG0
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isb // Wait for the write to take effect
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bx lr
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ARM_FUNCTION _miu_read_l2cadrmap
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mrc p15, 1, r0, c15, c2, 4
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bx lr
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ARM_FUNCTION _miu_write_l2cadrmap
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mcr p15, 1, r0, c15, c2, 4
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isb
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bx lr
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