diff options
Diffstat (limited to 'target/linux/at91-2.6/image/dfboot/src/dataflash.h')
| -rw-r--r-- | target/linux/at91-2.6/image/dfboot/src/dataflash.h | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/target/linux/at91-2.6/image/dfboot/src/dataflash.h b/target/linux/at91-2.6/image/dfboot/src/dataflash.h new file mode 100644 index 0000000..8fab63f --- /dev/null +++ b/target/linux/at91-2.6/image/dfboot/src/dataflash.h @@ -0,0 +1,181 @@ +//*--------------------------------------------------------------------------- +//* ATMEL Microcontroller Software Support - ROUSSET - +//*--------------------------------------------------------------------------- +//* The software is delivered "AS IS" without warranty or condition of any +//* kind, either express, implied or statutory. This includes without +//* limitation any warranty or condition with respect to merchantability or +//* fitness for any particular purpose, or against the infringements of +//* intellectual property rights of others. +//*--------------------------------------------------------------------------- +//* File Name : AT91_SpiDataFlash.h +//* Object : Data Flash Atmel Description File +//* Translator : +//* +//* 1.0 03/04/01 HI : Creation +//* +//*--------------------------------------------------------------------------- + +#ifndef _DataFlash_h +#define _DataFlash_h + +/* Max value = 15Mhz to be compliant with the Continuous array read function */ +#ifdef SPI_LOW_SPEED +#define AT91C_SPI_CLK 14976000/4 +#else +#define AT91C_SPI_CLK 14976000 +#endif + +/* AC characteristics */ +/* DLYBS = tCSS= 250ns min and DLYBCT = tCSH = 250ns */ + +#define DATAFLASH_TCSS (0xf << 16) /* 250ns 15/60000000 */ +#define DATAFLASH_TCHS (0x1 << 24) /* 250ns 32*1/60000000 */ + + +#define AT91C_SPI_PCS0_SERIAL_DATAFLASH 0xE /* Chip Select 0 : NPCS0 %1110 */ +#define AT91C_SPI_PCS3_DATAFLASH_CARD 0x7 /* Chip Select 3 : NPCS3 %0111 */ + +#define CFG_MAX_DATAFLASH_BANKS 2 +#define CFG_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000 +#define CFG_DATAFLASH_LOGIC_ADDR_CS3 0xD0000000 + +typedef struct { + unsigned long base; /* logical base address for a bank */ + unsigned long size; /* total bank size */ + unsigned long page_count; + unsigned long page_size; + unsigned long id; /* device id */ +} dataflash_info_t; + +typedef unsigned int AT91S_DataFlashStatus; + +/*----------------------------------------------------------------------*/ +/* DataFlash Structures */ +/*----------------------------------------------------------------------*/ + +/*---------------------------------------------*/ +/* DataFlash Descriptor Structure Definition */ +/*---------------------------------------------*/ +typedef struct _AT91S_DataflashDesc { + unsigned char *tx_cmd_pt; + unsigned int tx_cmd_size; + unsigned char *rx_cmd_pt; + unsigned int rx_cmd_size; + unsigned char *tx_data_pt; + unsigned int tx_data_size; + unsigned char *rx_data_pt; + unsigned int rx_data_size; + volatile unsigned char DataFlash_state; + unsigned char command[8]; +} AT91S_DataflashDesc, *AT91PS_DataflashDesc; + +/*---------------------------------------------*/ +/* DataFlash device definition structure */ +/*---------------------------------------------*/ +typedef struct _AT91S_Dataflash { + int pages_number; /* dataflash page number */ + int pages_size; /* dataflash page size */ + int page_offset; /* page offset in command */ + int byte_mask; /* byte mask in command */ + int cs; +} AT91S_DataflashFeatures, *AT91PS_DataflashFeatures; + + +/*---------------------------------------------*/ +/* DataFlash Structure Definition */ +/*---------------------------------------------*/ +typedef struct _AT91S_DataFlash { + AT91PS_DataflashDesc pDataFlashDesc; /* dataflash descriptor */ + AT91PS_DataflashFeatures pDevice; /* Pointer on a dataflash features array */ +} AT91S_DataFlash, *AT91PS_DataFlash; + + +typedef struct _AT91S_DATAFLASH_INFO { + + AT91S_DataflashDesc Desc; + AT91S_DataflashFeatures Device; /* Pointer on a dataflash features array */ + unsigned long logical_address; + unsigned int id; /* device id */ +} AT91S_DATAFLASH_INFO, *AT91PS_DATAFLASH_INFO; + + +/*-------------------------------------------------------------------------------------------------*/ + +#define AT45DB161 0x2c +#define AT45DB321 0x34 +#define AT45DB642 0x3c +#define AT45DB128 0x10 + +#define AT91C_DATAFLASH_TIMEOUT 20000 /* For AT91F_DataFlashWaitReady */ + +/* DataFlash return value */ +#define AT91C_DATAFLASH_BUSY 0x00 +#define AT91C_DATAFLASH_OK 0x01 +#define AT91C_DATAFLASH_ERROR 0x02 +#define AT91C_DATAFLASH_MEMORY_OVERFLOW 0x03 +#define AT91C_DATAFLASH_BAD_COMMAND 0x04 +#define AT91C_DATAFLASH_BAD_ADDRESS 0x05 + + +/* Driver State */ +#define IDLE 0x0 +#define BUSY 0x1 +#define ERROR 0x2 + +/* DataFlash Driver State */ +#define GET_STATUS 0x0F + +/*-------------------------------------------------------------------------------------------------*/ +/* Command Definition */ +/*-------------------------------------------------------------------------------------------------*/ + +/* READ COMMANDS */ +#define DB_CONTINUOUS_ARRAY_READ 0xE8 /* Continuous array read */ +#define DB_BURST_ARRAY_READ 0xE8 /* Burst array read */ +#define DB_PAGE_READ 0xD2 /* Main memory page read */ +#define DB_BUF1_READ 0xD4 /* Buffer 1 read */ +#define DB_BUF2_READ 0xD6 /* Buffer 2 read */ +#define DB_STATUS 0xD7 /* Status Register */ + +/* PROGRAM and ERASE COMMANDS */ +#define DB_BUF1_WRITE 0x84 /* Buffer 1 write */ +#define DB_BUF2_WRITE 0x87 /* Buffer 2 write */ +#define DB_BUF1_PAGE_ERASE_PGM 0x83 /* Buffer 1 to main memory page program with built-In erase */ +#define DB_BUF1_PAGE_ERASE_FASTPGM 0x93 /* Buffer 1 to main memory page program with built-In erase, Fast program */ +#define DB_BUF2_PAGE_ERASE_PGM 0x86 /* Buffer 2 to main memory page program with built-In erase */ +#define DB_BUF2_PAGE_ERASE_FASTPGM 0x96 /* Buffer 1 to main memory page program with built-In erase, Fast program */ +#define DB_BUF1_PAGE_PGM 0x88 /* Buffer 1 to main memory page program without built-In erase */ +#define DB_BUF1_PAGE_FASTPGM 0x98 /* Buffer 1 to main memory page program without built-In erase, Fast program */ +#define DB_BUF2_PAGE_PGM 0x89 /* Buffer 2 to main memory page program without built-In erase */ +#define DB_BUF2_PAGE_FASTPGM 0x99 /* Buffer 1 to main memory page program without built-In erase, Fast program */ +#define DB_PAGE_ERASE 0x81 /* Page Erase */ +#define DB_BLOCK_ERASE 0x50 /* Block Erase */ +#define DB_PAGE_PGM_BUF1 0x82 /* Main memory page through buffer 1 */ +#define DB_PAGE_FASTPGM_BUF1 0x92 /* Main memory page through buffer 1, Fast program */ +#define DB_PAGE_PGM_BUF2 0x85 /* Main memory page through buffer 2 */ +#define DB_PAGE_FastPGM_BUF2 0x95 /* Main memory page through buffer 2, Fast program */ + +/* ADDITIONAL COMMANDS */ +#define DB_PAGE_2_BUF1_TRF 0x53 /* Main memory page to buffer 1 transfert */ +#define DB_PAGE_2_BUF2_TRF 0x55 /* Main memory page to buffer 2 transfert */ +#define DB_PAGE_2_BUF1_CMP 0x60 /* Main memory page to buffer 1 compare */ +#define DB_PAGE_2_BUF2_CMP 0x61 /* Main memory page to buffer 2 compare */ +#define DB_AUTO_PAGE_PGM_BUF1 0x58 /* Auto page rewrite throught buffer 1 */ +#define DB_AUTO_PAGE_PGM_BUF2 0x59 /* Auto page rewrite throught buffer 2 */ + +/*-------------------------------------------------------------------------------------------------*/ + +extern AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS]; + +extern void AT91F_SpiInit(void); +extern int AT91F_DataflashProbe(int i, AT91PS_DataflashDesc pDesc); +extern int AT91F_DataFlashRead(AT91PS_DataFlash, unsigned long , unsigned long, char *); +extern AT91S_DataFlashStatus AT91F_DataFlashWrite(AT91PS_DataFlash ,unsigned char *, int, int); +extern AT91S_DataFlashStatus AT91F_DataFlashErase(AT91PS_DataFlash pDataFlash); +extern int AT91F_DataflashInit(void); +extern void AT91F_DataflashPrintInfo(void); +extern int read_dataflash(unsigned long addr, unsigned long size, char *result); +extern int write_dataflash(unsigned long addr_dest, unsigned int addr_src, unsigned int size); +extern int erase_dataflash(unsigned long addr_dest); + +#endif |