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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
//------------------------------------------------------------------------------
/// \unit
///
/// !Purpose
///
/// Methods to manage the Coprocessor 15. Coprocessor 15, or System Control
/// Coprocessor CP15, is used to configure and control all the items in the
/// list below:
/// • ARM core
/// • Caches (ICache, DCache and write buffer)
/// • TCM
/// • MMU
/// • Other system options
///
/// !Usage
///
/// -# Enable or disable D cache with Enable_D_Cache and Disable_D_Cache
/// -# Enable or disable I cache with Enable_I_Cache and Disable_I_Cache
///
//------------------------------------------------------------------------------
#ifndef _CP15_H
#define _CP15_H
#ifdef CP15_PRESENT
//-----------------------------------------------------------------------------
// Exported functions
//-----------------------------------------------------------------------------
extern void CP15_Enable_I_Cache(void);
extern unsigned int CP15_Is_I_CacheEnabled(void);
extern void CP15_Enable_I_Cache(void);
extern void CP15_Disable_I_Cache(void);
extern unsigned int CP15_Is_MMUEnabled(void);
extern void CP15_EnableMMU(void);
extern void CP15_DisableMMU(void);
extern unsigned int CP15_Is_DCacheEnabled(void);
extern void CP15_Enable_D_Cache(void);
extern void CP15_Disable_D_Cache(void);
//-----------------------------------------------------------------------------
// External functions defined in cp15.S
//-----------------------------------------------------------------------------
extern unsigned int _readControlRegister(void);
extern void _writeControlRegister(unsigned int value);
extern void _waitForInterrupt(void);
extern void _writeTTB(unsigned int value);
extern void _writeDomain(unsigned int value);
extern void _writeITLBLockdown(unsigned int value);
extern void _prefetchICacheLine(unsigned int value);
#endif // CP15_PRESENT
#endif // #ifndef _CP15_H
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