53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
|
|
* Copyright (c) 2014 Wind River Systems, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Cache helper functions (ARC)
|
|
*
|
|
* This file contains private nanokernel structures definitions and various
|
|
* other definitions for the ARCv2 processor architecture.
|
|
*/
|
|
|
|
#ifndef _ARCV2_CACHE__H_
|
|
#define _ARCV2_CACHE__H_
|
|
|
|
#include <arch/cpu.h>
|
|
|
|
#ifndef _ASMLANGUAGE
|
|
|
|
#define CACHE_ENABLE 0x00
|
|
#define CACHE_DISABLE 0x01
|
|
#define CACHE_DIRECT 0x00
|
|
#define CACHE_CACHE_CONTROLLED 0x20
|
|
|
|
/*
|
|
* @brief Sets the I-cache
|
|
*
|
|
* Enables cache and sets the direct access.
|
|
*/
|
|
static ALWAYS_INLINE void _icache_setup(void)
|
|
{
|
|
uint32_t icache_config = (
|
|
CACHE_DIRECT | /* direct mapping (one-way assoc.) */
|
|
CACHE_ENABLE /* i-cache enabled */
|
|
);
|
|
_arc_v2_aux_reg_write(_ARC_V2_IC_CTRL, icache_config);
|
|
}
|
|
|
|
#endif /* _ASMLANGUAGE */
|
|
#endif /* _ARCV2_CACHE__H_ */
|