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//==========================================================================

//

//      flash.h

//

//      Flash programming - device constants, etc.

//

//==========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

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//####ECOSGPLCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    gthomas

// Contributors: gthomas, msalter

// Date:         2000-07-26

// Purpose:      

// Description:  

//              

//####DESCRIPTIONEND####

//

//==========================================================================

#ifndef _FLASH_HWR_H_

#define _FLASH_HWR_H_

// First 4K page of flash at physical address zero is

// virtually mapped at address 0xa0000000.

#define FLASH_P2V(x) ((volatile unsigned char *)(((unsigned)(x) < 0x1000) ?  \

                           ((unsigned)(x) | 0xd0000000) :  \

                           (unsigned)(x)))

#define FLASH_BOOT_BLOCK_SIZE   0x4000

#define FLASH_Intel_code   0x89

#define FLASH_Read_ID      0x90

#define FLASH_Read_Query   0x98

#define FLASH_Read_Status  0x70

#define FLASH_Clear_Status 0x50

#define FLASH_Status_Ready 0x80

#define FLASH_Write_Buffer 0xE8

#define FLASH_Program      0x10

#define FLASH_Block_Erase  0x20

#define FLASH_Set_Lock     0x60

#define FLASH_Set_Lock_Confirm 0x01

#define FLASH_Clear_Locks  0x60

#define FLASH_Clear_Locks_Confirm  0xD0

#define FLASH_Confirm      0xD0

#define FLASH_Configure    0xB8

#define FLASH_Configure_ReadyWait      0x00

#define FLASH_Configure_PulseOnErase   0x01

#define FLASH_Configure_PulseOnProgram 0x02

#define FLASH_Configure_PulseOnBoth    0x03

#define FLASH_Reset        0xFF

#define FLASH_BLOCK_SIZE   0x10000

#define FLASH_WBUF_SIZE    32

#define FLASH_Intel_code   0x89

// Extended query information

struct FLASH_query {

    unsigned char manuf_code;

    unsigned char device_code;

    unsigned char _unused0[14];

    unsigned char id[3];  // Q Q R

    unsigned char _unused1[20];

    unsigned char device_size;

    unsigned char device_interface[2];

    unsigned char buffer_size[2];

    unsigned char is_block_oriented;

    unsigned char num_regions[2];

    unsigned char region_size[2];

};

#endif  // _FLASH_HWR_H_