182 lines
7.5 KiB
C
182 lines
7.5 KiB
C
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//*---------------------------------------------------------------------------
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//* ATMEL Microcontroller Software Support - ROUSSET -
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//*---------------------------------------------------------------------------
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//* The software is delivered "AS IS" without warranty or condition of any
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//* kind, either express, implied or statutory. This includes without
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//* limitation any warranty or condition with respect to merchantability or
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//* fitness for any particular purpose, or against the infringements of
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//* intellectual property rights of others.
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//*---------------------------------------------------------------------------
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//* File Name : AT91_SpiDataFlash.h
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//* Object : Data Flash Atmel Description File
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//* Translator :
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//*
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//* 1.0 03/04/01 HI : Creation
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//*
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//*---------------------------------------------------------------------------
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#ifndef _DataFlash_h
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#define _DataFlash_h
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/* Max value = 15Mhz to be compliant with the Continuous array read function */
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#ifdef SPI_LOW_SPEED
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#define AT91C_SPI_CLK 14976000/4
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#else
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#define AT91C_SPI_CLK 14976000
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#endif
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/* AC characteristics */
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/* DLYBS = tCSS= 250ns min and DLYBCT = tCSH = 250ns */
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#define DATAFLASH_TCSS (0xf << 16) /* 250ns 15/60000000 */
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#define DATAFLASH_TCHS (0x1 << 24) /* 250ns 32*1/60000000 */
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#define AT91C_SPI_PCS0_SERIAL_DATAFLASH 0xE /* Chip Select 0 : NPCS0 %1110 */
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#define AT91C_SPI_PCS3_DATAFLASH_CARD 0x7 /* Chip Select 3 : NPCS3 %0111 */
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#define CFG_MAX_DATAFLASH_BANKS 2
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#define CFG_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000
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#define CFG_DATAFLASH_LOGIC_ADDR_CS3 0xD0000000
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typedef struct {
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unsigned long base; /* logical base address for a bank */
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unsigned long size; /* total bank size */
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unsigned long page_count;
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unsigned long page_size;
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unsigned long id; /* device id */
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} dataflash_info_t;
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typedef unsigned int AT91S_DataFlashStatus;
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/*----------------------------------------------------------------------*/
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/* DataFlash Structures */
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/*----------------------------------------------------------------------*/
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/*---------------------------------------------*/
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/* DataFlash Descriptor Structure Definition */
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/*---------------------------------------------*/
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typedef struct _AT91S_DataflashDesc {
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unsigned char *tx_cmd_pt;
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unsigned int tx_cmd_size;
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unsigned char *rx_cmd_pt;
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unsigned int rx_cmd_size;
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unsigned char *tx_data_pt;
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unsigned int tx_data_size;
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unsigned char *rx_data_pt;
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unsigned int rx_data_size;
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volatile unsigned char DataFlash_state;
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unsigned char command[8];
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} AT91S_DataflashDesc, *AT91PS_DataflashDesc;
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/*---------------------------------------------*/
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/* DataFlash device definition structure */
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/*---------------------------------------------*/
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typedef struct _AT91S_Dataflash {
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int pages_number; /* dataflash page number */
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int pages_size; /* dataflash page size */
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int page_offset; /* page offset in command */
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int byte_mask; /* byte mask in command */
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int cs;
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} AT91S_DataflashFeatures, *AT91PS_DataflashFeatures;
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/*---------------------------------------------*/
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/* DataFlash Structure Definition */
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/*---------------------------------------------*/
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typedef struct _AT91S_DataFlash {
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AT91PS_DataflashDesc pDataFlashDesc; /* dataflash descriptor */
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AT91PS_DataflashFeatures pDevice; /* Pointer on a dataflash features array */
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} AT91S_DataFlash, *AT91PS_DataFlash;
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typedef struct _AT91S_DATAFLASH_INFO {
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AT91S_DataflashDesc Desc;
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AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */
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unsigned long logical_address;
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unsigned int id; /* device id */
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} AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO;
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/*-------------------------------------------------------------------------------------------------*/
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#define AT45DB161 0x2c
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#define AT45DB321 0x34
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#define AT45DB642 0x3c
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#define AT45DB128 0x10
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#define AT91C_DATAFLASH_TIMEOUT 20000 /* For AT91F_DataFlashWaitReady */
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/* DataFlash return value */
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#define AT91C_DATAFLASH_BUSY 0x00
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#define AT91C_DATAFLASH_OK 0x01
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#define AT91C_DATAFLASH_ERROR 0x02
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#define AT91C_DATAFLASH_MEMORY_OVERFLOW 0x03
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#define AT91C_DATAFLASH_BAD_COMMAND 0x04
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#define AT91C_DATAFLASH_BAD_ADDRESS 0x05
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/* Driver State */
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#define IDLE 0x0
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#define BUSY 0x1
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#define ERROR 0x2
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/* DataFlash Driver State */
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#define GET_STATUS 0x0F
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/*-------------------------------------------------------------------------------------------------*/
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/* Command Definition */
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/*-------------------------------------------------------------------------------------------------*/
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/* READ COMMANDS */
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#define DB_CONTINUOUS_ARRAY_READ 0xE8 /* Continuous array read */
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#define DB_BURST_ARRAY_READ 0xE8 /* Burst array read */
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#define DB_PAGE_READ 0xD2 /* Main memory page read */
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#define DB_BUF1_READ 0xD4 /* Buffer 1 read */
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#define DB_BUF2_READ 0xD6 /* Buffer 2 read */
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#define DB_STATUS 0xD7 /* Status Register */
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/* PROGRAM and ERASE COMMANDS */
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#define DB_BUF1_WRITE 0x84 /* Buffer 1 write */
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#define DB_BUF2_WRITE 0x87 /* Buffer 2 write */
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#define DB_BUF1_PAGE_ERASE_PGM 0x83 /* Buffer 1 to main memory page program with built-In erase */
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#define DB_BUF1_PAGE_ERASE_FASTPGM 0x93 /* Buffer 1 to main memory page program with built-In erase, Fast program */
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#define DB_BUF2_PAGE_ERASE_PGM 0x86 /* Buffer 2 to main memory page program with built-In erase */
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#define DB_BUF2_PAGE_ERASE_FASTPGM 0x96 /* Buffer 1 to main memory page program with built-In erase, Fast program */
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#define DB_BUF1_PAGE_PGM 0x88 /* Buffer 1 to main memory page program without built-In erase */
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#define DB_BUF1_PAGE_FASTPGM 0x98 /* Buffer 1 to main memory page program without built-In erase, Fast program */
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#define DB_BUF2_PAGE_PGM 0x89 /* Buffer 2 to main memory page program without built-In erase */
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#define DB_BUF2_PAGE_FASTPGM 0x99 /* Buffer 1 to main memory page program without built-In erase, Fast program */
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#define DB_PAGE_ERASE 0x81 /* Page Erase */
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#define DB_BLOCK_ERASE 0x50 /* Block Erase */
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#define DB_PAGE_PGM_BUF1 0x82 /* Main memory page through buffer 1 */
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#define DB_PAGE_FASTPGM_BUF1 0x92 /* Main memory page through buffer 1, Fast program */
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#define DB_PAGE_PGM_BUF2 0x85 /* Main memory page through buffer 2 */
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#define DB_PAGE_FastPGM_BUF2 0x95 /* Main memory page through buffer 2, Fast program */
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/* ADDITIONAL COMMANDS */
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#define DB_PAGE_2_BUF1_TRF 0x53 /* Main memory page to buffer 1 transfert */
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#define DB_PAGE_2_BUF2_TRF 0x55 /* Main memory page to buffer 2 transfert */
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#define DB_PAGE_2_BUF1_CMP 0x60 /* Main memory page to buffer 1 compare */
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#define DB_PAGE_2_BUF2_CMP 0x61 /* Main memory page to buffer 2 compare */
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#define DB_AUTO_PAGE_PGM_BUF1 0x58 /* Auto page rewrite throught buffer 1 */
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#define DB_AUTO_PAGE_PGM_BUF2 0x59 /* Auto page rewrite throught buffer 2 */
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/*-------------------------------------------------------------------------------------------------*/
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extern AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS];
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extern void AT91F_SpiInit(void);
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extern int AT91F_DataflashProbe(int i, AT91PS_DataflashDesc pDesc);
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extern int AT91F_DataFlashRead(AT91PS_DataFlash, unsigned long , unsigned long, char *);
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extern AT91S_DataFlashStatus AT91F_DataFlashWrite(AT91PS_DataFlash ,unsigned char *, int, int);
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extern AT91S_DataFlashStatus AT91F_DataFlashErase(AT91PS_DataFlash pDataFlash);
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extern int AT91F_DataflashInit(void);
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extern void AT91F_DataflashPrintInfo(void);
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extern int read_dataflash(unsigned long addr, unsigned long size, char *result);
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extern int write_dataflash(unsigned long addr_dest, unsigned int addr_src, unsigned int size);
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extern int erase_dataflash(unsigned long addr_dest);
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#endif
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