mmu.h

USB-TEST是USB通信的例子

/*********************************************************************************************
* File：	mmu.h
* Author:	Embest	
* Desc：	header file of mmu
* History:	
*            1)Y.J.Guo, Programming modify, April 28, 2005
*********************************************************************************************/

#include "2410slib.h"

#ifndef __MMU_H__
#define __MMU_H__
#ifdef __cplusplus
extern "C" {
#endif

/*------------------------------------------------------------------------------------------*/
/*                                Macro definitons on MMU                                   */
/*------------------------------------------------------------------------------------------*/
#define DESC_SEC		(0x2|(1<<4))
#define CB				(3<<2)									//cache_on, write_back
#define CNB				(2<<2)									//cache_on, write_through 
#define NCB				(1<<2)									//cache_off,WR_BUF on
#define NCNB			(0<<2)									//cache_off,WR_BUF off
#define AP_RW			(3<<10)									//supervisor=RW, user=RW
#define AP_RO			(2<<10)									//supervisor=RW, user=RO

#define DOMAIN_FAULT	(0x0)
#define DOMAIN_CHK		(0x1) 
#define DOMAIN_NOTCHK	(0x3) 
#define DOMAIN0			(0x0<<5)
#define DOMAIN1			(0x1<<5)

#define DOMAIN0_ATTR	(DOMAIN_CHK<<0) 
#define DOMAIN1_ATTR	(DOMAIN_FAULT<<2) 

#define RW_CB			(AP_RW|DOMAIN0|CB|DESC_SEC)
#define RW_CNB			(AP_RW|DOMAIN0|CNB|DESC_SEC)
#define RW_NCNB			(AP_RW|DOMAIN0|NCNB|DESC_SEC)
#define RW_FAULT		(AP_RW|DOMAIN1|NCNB|DESC_SEC)

/*------------------------------------------------------------------------------------------*/
/*	 								functions declare						                */
/*------------------------------------------------------------------------------------------*/
void MMU_Init(void);
void MMU_SetMTT(int vaddrStart,int vaddrEnd,int paddrStart,int attr);
void ChangeRomCacheStatus(int attr);

#ifdef __cplusplus
}
#endif

#endif 															//__MMU_H__