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 ASM  1
#define C_LANG 2
#define DMA  3
#define TRANS_MODE C_LANG
*/
#endif /*__MMU_H__*/