mmu.h
资源名称:inc.rar [点击查看]
上传用户:dzdeming
上传日期:2022-08-03
资源大小:381k
文件大小:1k
源码类别:
Windows CE
开发平台:
Visual C++
- /************************************************
- 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
- #endif /*__MMU_H__*/