syscon.h

来自「cache test for arm920 core」· C头文件 代码 · 共 106 行

//=============================================================================
//                                                                          
//  FILE: syscon_drv.h                             
//                                                                      
//  DESCRIPTION: Syscon Driver header file for VeriSuite
//                                                                    
//  Copyright(c) Cirrus Logic Corporation, 2002 All Rights Reserved    
//                                                                       
//========================================================================
#ifndef _SYSCON_DRV_H_
#define _SYSCON_DRV_H_

#include "regs_syscon.h"

typedef enum
{
    CLK_EXT,
    CLK_75,
    CLK_100,
    CLK_125,
    CLK_150,
    CLK_166,
    CLK_180,
    CLK_200,
    CLK_210,
    CLK_222,
    CLK_225,
    CLK_250,
    CLK_300,
    CLK_325,
    CLK_350,
    CLK_368,
    CLK_375,
    CLK_400,
    CLK_425,
    CLK_442,
    CLK_450,
    CLK_475,
    CLK_490,
    CLK_500,
    CLK_NOCHANGE

} ClockRates;


typedef enum
{
    FCLK_DIV_1=0,
    FCLK_DIV_2=1,
    FCLK_DIV_4=2,
    FCLK_DIV_8=3,
    FCLK_DIV_16=4,
    FCLK_NOCHANGE

} FClockDivide;

typedef enum
{
    HCLK_DIV_1,
    HCLK_DIV_2,
    HCLK_DIV_4,
    HCLK_DIV_5,
    HCLK_DIV_6,
    HCLK_DIV_8,
    HCLK_DIV_16,
    HCLK_DIV_32,
    HCLK_NOCHANGE
} HClockDivide;

typedef enum
{

    PCLK_DIV_1,
    PCLK_DIV_2,
    PCLK_DIV_4,
    PCLK_DIV_8,
    PCLK_NOCHANGE
} PClockDivide;

typedef enum
{
    FAST_BUS,
    ASYNC_BUS,
    SYNC_BUS
} BusMode;

#define I2SDIV ((UINT *)&SysConCSC->I2SDIV.Value)
#define DEVCFG ((UINT *)&SysConCSC->DEVCFG.Value)
#define KTDIV  ((UINT *)&SysConCSC->KTDIV.Value)

typedef struct 
{
    INT (*SetBusClocks)(ClockRates PLLClock, FClockDivide FDiv, 
                        HClockDivide HDiv, PClockDivide PDiv);
    INT (*SetBusMode)(BusMode Mode);
    INT (*WriteLockedReg)(volatile UINT *pRegister, UINT Value);
    INT (*BitSetLockedReg)(volatile UINT *pRegister, UINT Mask);
    INT (*BitClearLockedReg)(volatile UINT *pRegister, UINT Mask);
} cSyscon;


INT SysconInit(cSyscon * pSyscon);

#endif // _SYSCON_DRV_H_