at91/libat91/spi_flash.h

	spi_flash.h revision 199767f8919635c4928607450d9e0abb932109ce
/*******************************************************************************
 *
 * Filename: spi_flash.h
 *
 * Definition of flash control routines supporting AT45DB161B
 *
 * Revision information:
 *
 * 17JAN2005    kb_admin    initial creation
 *
 * BEGIN_KBDD_BLOCK
 * No warranty, expressed or implied, is included with this software.  It is
 * provided "AS IS" and no warranty of any kind including statutory or aspects
 * relating to merchantability or fitness for any purpose is provided.  All
 * intellectual property rights of others is maintained with the respective
 * owners.  This software is not copyrighted and is intended for reference
 * only.
 * END_BLOCK
 *
 * $FreeBSD$
 ******************************************************************************/

#ifndef _SPI_FLASH_H_
#define _SPI_FLASH_H_

typedef struct {
    char        *tx_cmd;
    unsigned    tx_cmd_size;
    char        *rx_cmd;
    unsigned    rx_cmd_size;
    char        *tx_data;
    unsigned    tx_data_size;
    char        *rx_data;
    unsigned    rx_data_size;
} spiCommand_t;

void SPI_ReadFlash(unsigned flash_addr, char *dest_addr, unsigned size);
void SPI_WriteFlash(unsigned flash_addr, char *dest_addr, unsigned size);
void SPI_InitFlash(void);

void SPI_GetId(unsigned *id);

#ifdef BOOT_BWCT
#define FLASH_PAGE_SIZE 528
#else
#define FLASH_PAGE_SIZE 1056
#endif

// Flash commands

#define CONTINUOUS_ARRAY_READ       0xE8
#define CONTINUOUS_ARRAY_READ_HF    0x0B
#define CONTINUOUS_ARRAY_READ_LF    0x03
#define STATUS_REGISTER_READ        0xD7
#define PROGRAM_THROUGH_BUFFER      0x82
#define MANUFACTURER_ID         0x9F

#endif