_csl_cache.c

TI达芬奇dm644x各硬件模块测试代码

/*  ============================================================================
 *   Copyright (c) Texas Instruments Inc 2002, 2003, 2004, 2005
 *
 *   Use of this software is controlled by the terms and conditions found in the
 *   license agreement under which this software has been supplied.
 *   ===========================================================================
 */

/** \file _csl_cache.c
 *
 *  \brief This file defines the functions in the Cache driver.
 *
 *  Date 22th March 2004
 *  Author Jamon Bowen
 *
 *  Description
 *  - The functions in this driver contian all of the necessary
 *       functionallity the configure the (if avalible) L2, L1D, and L1P Cache.
 *  Last Modified: 22th March 2004
 *
 *  Modifications 1:
 *  - Jamon Bowen
 *  - Created
 *  - Date: 23th March 2004
 *
 *  Modifications 2:
 *  - Ruchika Kharwar
 *  - Created
 *  - Date: 21st June 2004
 *  - Removed global variable, Cache (redundant), Register Layer modified to be
 *    CSL 3.x Register layer as
 *    specified in the scope.
 */

#include <csl_cache.h>
#include "_csl_cache.h"

#pragma DATA_SECTION (_CSL_cachebusyState, ".bss:cslsys_section:cache");
volatile CACHE_waitState _CSL_cachebusyState = CACHE_WAIT_NONE;

#pragma DATA_SECTION (_CSL_cacheEmifState, ".bss:cslsys_section:cache");
volatile CACHE_emifState _CSL_cacheEmifState = CACHE_EMIF_NONE;

#pragma CODE_SECTION (_CSL_cacheApplyPatch, ".text:cslsys_section:cache");
void _CSL_cacheApplyPatch()
{
    switch (_CSL_cacheEmifState) {
        case CACHE_EMIF_NONE:
            break;

        case CACHE_EMIF_A:
            CSL_CACHE_EMIFA_PATCH();
            break;

        case CACHE_EMIF_B:
            CSL_CACHE_EMIFB_PATCH();
            break;

        case CACHE_EMIF_AB:
            CSL_CACHE_EMIFA_PATCH();
            CSL_CACHE_EMIFB_PATCH();
            break;
    }
    _CSL_cacheEmifState = CACHE_EMIF_NONE;
}

#pragma CODE_SECTION (_CACHE_wait, ".text:cslsys_section:cache");
void _CACHE_wait(
    CACHE_Wait wait
)
{
    if (wait == CACHE_WAITINTERNAL)
        CACHE_waitInternal();
    else
        CACHE_wait();
}