csl_emifhwsetupraw.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_emifHwSetupRaw.c
 *
 *    @brief File for functional layer of CSL API @a CSL_emifHwSetupRaw()
 *
 *    Path: \\(CSLPATH)\\ipmodules\\emifs\\src
 *
 *  Description
 *    - The @a CSL_emifHwSetupRaw() function definition & it's associated functions
 *
 */
 
/*  ============================================================================
 *   Copyright (c) Texas Instruments Inc 2002, 2003, 2004
 *
 *   Use of this software is controlled by the terms and conditions found in the
 *   license agreement under which this software has been supplied.
 *   ===========================================================================
 */
 
/* =============================================================================
 *  Revision History
 *  ===============
 *  30-Aug-2004 brn File Created for the new CSL architecture.
 *  11-Oct-2004 brn File updated with the code review comments
 * =============================================================================
 */

#include <csl_emif.h>

/** ============================================================================
 *   @n@b CSL_emifHwSetupRaw
 *
 *   @b Description
 *   @n This function initializes the device registers with the register-values
 *      provided through the config data structure.  
 *
 *   @b Arguments
 *   @verbatim
            hEmif            Handle to the external memory interface instance
            
            config          Pointer to the config structure containing the
                            device register values
     @endverbatim
 *
 *   <b> Return Value </b>  CSL_Status
 *   @li                    CSL_SOK             - Configuration successful
 *   @li                    CSL_ESYS_BADHANDLE  - Invalid handle
 *   @li                    CSL_ESYS_INVPARAMS  - Configuration structure
 *                                                pointer is not properly
 *                                                initialized
 *
 *   <b> Pre Condition </b>
 *   @n  None
 *
 *   <b> Post Condition </b>
 *   @n  The registers of the specified compact camera port instance will be 
 *       setup according to the values passed through the config structure
 *
 *   @b Modifies
 *   @n Hardware registers of the specified compact camera port instance
 *
 *   @b Example
 *   @verbatim
        CSL_EmifHandle           hEmif;
        CSL_EmifConfig           config = CSL_EMIF_CONFIG_DEFAULTS;
        CSL_Status               status;

        ...
        
        status = CSL_emifHwSetupRaw (hCcp, &config);
        
        ...
            
     @endverbatim
 * =============================================================================
 */
#pragma CODE_SECTION (CSL_emifHwSetupRaw, ".text:csl_section:ccp");
CSL_Status  CSL_emifHwSetupRaw (
    CSL_EmifHandle       hEmif,
    CSL_EmifConfig       *config
)
{
    if(hEmif == NULL) 
        return CSL_ESYS_BADHANDLE;

    if(config == NULL)   
        return CSL_ESYS_INVPARAMS;
    
    /* setting the information of external memory interface async waight 
       config register */ 
    hEmif->regs->AWCCR = config->AWCCR;
    
    /* setting the information of external memory interface SRAM bank 
       config regieter */
    hEmif->regs->SDBCR = config->SDBCR;
    
    /* setting the information of external memory interface SDRAM refresh 
       control register */
    hEmif->regs->SDRCR = config->SDRCR;
    
    /* setting the information of external memory interface asynchronous banck 
       control register1 */
    hEmif->regs->AB1CR = config->AB1CR;
    
    /* setting the information of external memory interface asynchronous banck 
       control register2 */
    hEmif->regs->AB2CR = config->AB2CR;
    
    /* setting the information of external memory interface asynchronous banck 
       control register3 */
    hEmif->regs->AB3CR = config->AB3CR;
    
    /* setting the information of external memory interface asynchronous banck 
       control register4 */
    hEmif->regs->AB4CR = config->AB4CR;
    
    /* setting the information of external memory interface SDRAM timing 
       register */
    hEmif->regs->SDTIMR = config->SDTIMR;
    
    /* setting the information of external memory interface DDR PHY control 
       register */
    hEmif->regs->DDRPHYCR = config->DDRPHYCR;
    
    /* setting the information of external memory interface SDRAN self refresh 
       timing register */
    hEmif->regs->SDSRETR = config->SDSRETR;
    
    /* setting the information of external memory interface interrupt raw 
       register */
    hEmif->regs->EIRR = config->EIRR;
    
    /* setting the information of external memory interface interrupt masked 
       register */
    hEmif->regs->EIMR = config->EIMR;
    
    /* setting the information of external memory interface interrupt mask set
       register */
    hEmif->regs->EIMSR = config->EIMSR;
    
    /* setting the information of external memory interface intrrupt mask clear 
       register */
    hEmif->regs->EIMCR = config->EIMCR;
    
    /* setting the information of external memory interface io control 
       register */
    hEmif->regs->IOCTRLR = config->IOCTRLR;
    
    /* setting the information of external memory interface nand flash control 
       register */
    hEmif->regs->NANDFCR = config->NANDFCR ;
    
    return CSL_SOK;
}