s3c2440头文件之mmu.h

NAME : MMU.H
DESC :
Revision: 02.28.2002 ver 0.0
************************************************/

#include "2440slib.h"

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

#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)

void MMU_Init(void);
void MMU_SetMTT(int vaddrStart,int vaddrEnd,int paddrStart,int attr);
void ChangeRomCacheStatus(int attr);

#ifdef __cplusplus
}
#endif

/*
#define ASM1
#define C_LANG2
#define DMA3
#define TRANS_MODE C_LANG
*/
#endif /*__MMU_H__*/