| /* ---------------------------------------------------------------------------- | |
| * 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 | |