amd.h

嵌入式系统 EP93xx处理器

//****************************************************************************
//
// AMD.h - The amd flash function definition.
//
// Copyright (c) 2006 Cirrus Logic, Inc.
//
//****************************************************************************

#ifndef AMD_H
#define AMD_H

#ifdef __cplusplus
extern "C" {
#endif

//****************************************************************************
// 16-bit bus command set
//****************************************************************************
#define AMD_SETUP_ADDR1                         (0x555)
#define AMD_SETUP_ADDR2                         (0x2AA)
#define AMD_VENDORID_ADDR                       (0)
#define AMD_DEVICEID_ADDR1                      (1)
#define AMD_DEVICEID_ADDR2                      (0x0e)
#define AMD_DEVICEID_ADDR3                      (0x0f)
#define AMD_QUERY_ADDR                          (0x55)

#define AMD_SETUP_CODE1                         (0xAA)
#define AMD_SETUP_CODE2                         (0x55)
#define AMD_SETUP_ERASE                         (0x80)

#define AMD_READ_ID                             (0x90)
#define AMD_READ_QUERY                          (0x98)
#define AMD_WP_STATE                            (0x90)
#define AMD_RESET                               (0xF0)
#define AMD_PROGRAM                             (0xA0)
#define AMD_BLOCK_ERASE                         (0x30)

#define AMD_SECTOR_ERASE_TIMER                  (0x08)

#define FLASH_ERR_OK              0x00  // No error - operation complete
#define FLASH_ERR_INVALID         0x01  // Invalid FLASH address
#define FLASH_ERR_ERASE           0x02  // Error trying to erase
#define FLASH_ERR_LOCK            0x03  // Error trying to lock/unlock
#define FLASH_ERR_PROGRAM         0x04  // Error trying to program
#define FLASH_ERR_PROTOCOL        0x05  // Generic error
#define FLASH_ERR_PROTECT         0x06  // Device/region is write-protected
#define FLASH_ERR_NOT_INIT        0x07  // FLASH info not yet initialized
#define FLASH_ERR_HWR             0x08  // Hardware (configuration?) problem
#define FLASH_ERR_ERASE_SUSPEND   0x09  // Device is in erase suspend mode
#define FLASH_ERR_PROGRAM_SUSPEND 0x0a  // Device is in in program suspend mode
#define FLASH_ERR_DRV_VERIFY      0x0b  // Driver failed to verify data
#define FLASH_ERR_DRV_TIMEOUT     0x0c  // Driver timed out waiting for device
#define FLASH_ERR_DRV_WRONG_PART  0x0d  // Driver does not support device
#define FLASH_ERR_LOW_VOLTAGE     0x0e  // Not enough juice to complete job

//****************************************************************************
//
// AMD specified function.
//
//****************************************************************************
int AmdFlashQuery(struct FlashInfo *pInfo);
int AmdFlashEraseSector(struct FlashInfo *pInfo, int iSector);
int AmdFlashErase(struct FlashInfo *pInfo, int iOffset, int len);
int AmdFlashProgramSector(struct FlashInfo *pInfo, int iOffset, void *data, int len);
int AmdFlashProgram(struct FlashInfo *pInfo, int iOffset, void *data, int len);

#ifdef __cplusplus
}
#endif

#endif /*AMD_H*/