Root/target/linux/at91/image/dfboot/src/dataflash.h

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

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