1//*--------------------------------------------------------------------------- 2//* ATMEL Microcontroller Software Support - ROUSSET - 3//*--------------------------------------------------------------------------- 4//* The software is delivered "AS IS" without warranty or condition of any 5//* kind, either express, implied or statutory. This includes without 6//* limitation any warranty or condition with respect to merchantability or 7//* fitness for any particular purpose, or against the infringements of 8//* intellectual property rights of others. 9//*--------------------------------------------------------------------------- 10//* File Name : AT91_SpiDataFlash.h 11//* Object : Data Flash Atmel Description File 12//* Translator : 13//* 14//* 1.0 03/04/01 HI : Creation 15//* 16//*--------------------------------------------------------------------------- 17 18#ifndef _DataFlash_h 19#define _DataFlash_h 20 21/* Max value = 15Mhz to be compliant with the Continuous array read function */ 22#ifdef SPI_LOW_SPEED 23#define AT91C_SPI_CLK 14976000/4 24#else 25#define AT91C_SPI_CLK 14976000 26#endif 27 28/* AC characteristics */ 29/* DLYBS = tCSS= 250ns min and DLYBCT = tCSH = 250ns */ 30 31#define DATAFLASH_TCSS (0xf << 16) /* 250ns 15/60000000 */ 32#define DATAFLASH_TCHS (0x1 << 24) /* 250ns 32*1/60000000 */ 33 34 35#define AT91C_SPI_PCS0_SERIAL_DATAFLASH 0xE /* Chip Select 0 : NPCS0 %1110 */ 36#define AT91C_SPI_PCS3_DATAFLASH_CARD 0x7 /* Chip Select 3 : NPCS3 %0111 */ 37 38#define CFG_MAX_DATAFLASH_BANKS 2 39#define CFG_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000 40#define CFG_DATAFLASH_LOGIC_ADDR_CS3 0xD0000000 41 42typedef struct { 43 unsigned long base; /* logical base address for a bank */ 44 unsigned long size; /* total bank size */ 45 unsigned long page_count; 46 unsigned long page_size; 47 unsigned long id; /* device id */ 48} dataflash_info_t; 49 50typedef unsigned int AT91S_DataFlashStatus; 51 52/*----------------------------------------------------------------------*/ 53/* DataFlash Structures */ 54/*----------------------------------------------------------------------*/ 55 56/*---------------------------------------------*/ 57/* DataFlash Descriptor Structure Definition */ 58/*---------------------------------------------*/ 59typedef struct _AT91S_DataflashDesc { 60 unsigned char *tx_cmd_pt; 61 unsigned int tx_cmd_size; 62 unsigned char *rx_cmd_pt; 63 unsigned int rx_cmd_size; 64 unsigned char *tx_data_pt; 65 unsigned int tx_data_size; 66 unsigned char *rx_data_pt; 67 unsigned int rx_data_size; 68 volatile unsigned char DataFlash_state; 69 unsigned char command[8]; 70} AT91S_DataflashDesc, *AT91PS_DataflashDesc; 71 72/*---------------------------------------------*/ 73/* DataFlash device definition structure */ 74/*---------------------------------------------*/ 75typedef struct _AT91S_Dataflash { 76 int pages_number; /* dataflash page number */ 77 int pages_size; /* dataflash page size */ 78 int page_offset; /* page offset in command */ 79 int byte_mask; /* byte mask in command */ 80 int cs; 81} AT91S_DataflashFeatures, *AT91PS_DataflashFeatures; 82 83 84/*---------------------------------------------*/ 85/* DataFlash Structure Definition */ 86/*---------------------------------------------*/ 87typedef struct _AT91S_DataFlash { 88 AT91PS_DataflashDesc pDataFlashDesc; /* dataflash descriptor */ 89 AT91PS_DataflashFeatures pDevice; /* Pointer on a dataflash features array */ 90} AT91S_DataFlash, *AT91PS_DataFlash; 91 92 93typedef struct _AT91S_DATAFLASH_INFO { 94 95 AT91S_DataflashDesc Desc; 96 AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */ 97 unsigned long logical_address; 98 unsigned int id; /* device id */ 99} AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO; 100 101 102/*-------------------------------------------------------------------------------------------------*/ 103 104#define AT45DB161 0x2c 105#define AT45DB321 0x34 106#define AT45DB642 0x3c 107#define AT45DB128 0x10 108 109#define AT91C_DATAFLASH_TIMEOUT 20000 /* For AT91F_DataFlashWaitReady */ 110 111/* DataFlash return value */ 112#define AT91C_DATAFLASH_BUSY 0x00 113#define AT91C_DATAFLASH_OK 0x01 114#define AT91C_DATAFLASH_ERROR 0x02 115#define AT91C_DATAFLASH_MEMORY_OVERFLOW 0x03 116#define AT91C_DATAFLASH_BAD_COMMAND 0x04 117#define AT91C_DATAFLASH_BAD_ADDRESS 0x05 118 119 120/* Driver State */ 121#define IDLE 0x0 122#define BUSY 0x1 123#define ERROR 0x2 124 125/* DataFlash Driver State */ 126#define GET_STATUS 0x0F 127 128/*-------------------------------------------------------------------------------------------------*/ 129/* Command Definition */ 130/*-------------------------------------------------------------------------------------------------*/ 131 132/* READ COMMANDS */ 133#define DB_CONTINUOUS_ARRAY_READ 0xE8 /* Continuous array read */ 134#define DB_BURST_ARRAY_READ 0xE8 /* Burst array read */ 135#define DB_PAGE_READ 0xD2 /* Main memory page read */ 136#define DB_BUF1_READ 0xD4 /* Buffer 1 read */ 137#define DB_BUF2_READ 0xD6 /* Buffer 2 read */ 138#define DB_STATUS 0xD7 /* Status Register */ 139 140/* PROGRAM and ERASE COMMANDS */ 141#define DB_BUF1_WRITE 0x84 /* Buffer 1 write */ 142#define DB_BUF2_WRITE 0x87 /* Buffer 2 write */ 143#define DB_BUF1_PAGE_ERASE_PGM 0x83 /* Buffer 1 to main memory page program with built-In erase */ 144#define DB_BUF1_PAGE_ERASE_FASTPGM 0x93 /* Buffer 1 to main memory page program with built-In erase, Fast program */ 145#define DB_BUF2_PAGE_ERASE_PGM 0x86 /* Buffer 2 to main memory page program with built-In erase */ 146#define DB_BUF2_PAGE_ERASE_FASTPGM 0x96 /* Buffer 1 to main memory page program with built-In erase, Fast program */ 147#define DB_BUF1_PAGE_PGM 0x88 /* Buffer 1 to main memory page program without built-In erase */ 148#define DB_BUF1_PAGE_FASTPGM 0x98 /* Buffer 1 to main memory page program without built-In erase, Fast program */ 149#define DB_BUF2_PAGE_PGM 0x89 /* Buffer 2 to main memory page program without built-In erase */ 150#define DB_BUF2_PAGE_FASTPGM 0x99 /* Buffer 1 to main memory page program without built-In erase, Fast program */ 151#define DB_PAGE_ERASE 0x81 /* Page Erase */ 152#define DB_BLOCK_ERASE 0x50 /* Block Erase */ 153#define DB_PAGE_PGM_BUF1 0x82 /* Main memory page through buffer 1 */ 154#define DB_PAGE_FASTPGM_BUF1 0x92 /* Main memory page through buffer 1, Fast program */ 155#define DB_PAGE_PGM_BUF2 0x85 /* Main memory page through buffer 2 */ 156#define DB_PAGE_FastPGM_BUF2 0x95 /* Main memory page through buffer 2, Fast program */ 157 158/* ADDITIONAL COMMANDS */ 159#define DB_PAGE_2_BUF1_TRF 0x53 /* Main memory page to buffer 1 transfert */ 160#define DB_PAGE_2_BUF2_TRF 0x55 /* Main memory page to buffer 2 transfert */ 161#define DB_PAGE_2_BUF1_CMP 0x60 /* Main memory page to buffer 1 compare */ 162#define DB_PAGE_2_BUF2_CMP 0x61 /* Main memory page to buffer 2 compare */ 163#define DB_AUTO_PAGE_PGM_BUF1 0x58 /* Auto page rewrite throught buffer 1 */ 164#define DB_AUTO_PAGE_PGM_BUF2 0x59 /* Auto page rewrite throught buffer 2 */ 165 166/*-------------------------------------------------------------------------------------------------*/ 167 168extern AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS]; 169 170extern void AT91F_SpiInit(void); 171extern int AT91F_DataflashProbe(int i, AT91PS_DataflashDesc pDesc); 172extern int AT91F_DataFlashRead(AT91PS_DataFlash, unsigned long , unsigned long, char *); 173extern AT91S_DataFlashStatus AT91F_DataFlashWrite(AT91PS_DataFlash ,unsigned char *, int, int); 174extern AT91S_DataFlashStatus AT91F_DataFlashErase(AT91PS_DataFlash pDataFlash); 175extern int AT91F_DataflashInit(void); 176extern void AT91F_DataflashPrintInfo(void); 177extern int read_dataflash(unsigned long addr, unsigned long size, char *result); 178extern int write_dataflash(unsigned long addr_dest, unsigned int addr_src, unsigned int size); 179extern int erase_dataflash(unsigned long addr_dest); 180 181#endif 182