2abbe07547
Modifications for Atmel AT91RM9200DK ARM920T based development kit
- Add Atmel DataFlash support for reading and writing.
- Add possibility to boot a Linux from DataFlash with BOOTM command.
- Add Flash detection on Atmel AT91RM9200DK
(between Atmel AT49BV1614 and AT49BV1614A flashes)
- Replace old Ethernet PHY layer functions
- Change link address
* Patch by Frank Smith, 9 Jun 2003:
use CRIT_EXCEPTION for machine check on 4xx
* Patch by Detlev Zundel, 13 Jun 2003:
added implementation of the "carinfo" command in cmd_immap.c
177 lines
6.9 KiB
C
177 lines
6.9 KiB
C
/*
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* (C) Copyright 2003
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* Data Flash Atmel Description File
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* Author : Hamid Ikdoumi (Atmel)
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/* File Name : dataflash.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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/* 1.2 20/10/02 FB : Adapatation Service and Lib v3 */
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/*----------------------------------------------------------------------*/
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#ifndef _DataFlash_h
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#define _DataFlash_h
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#include <asm/arch/hardware.h>
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#include "config.h"
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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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unsigned char protect[CFG_MAX_DATAFLASH_PAGES]; /* page protection status */
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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 state;
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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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unsigned char protect[CFG_MAX_DATAFLASH_PAGES]; /* page protection status */
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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 AT91C_DATAFLASH_TIMEOUT 10000 /* For AT91F_DataFlashWaitReady */
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/* DataFlash return value */
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#define DATAFLASH_BUSY 0x00
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#define DATAFLASH_OK 0x01
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#define DATAFLASH_ERROR 0x02
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#define DATAFLASH_MEMORY_OVERFLOW 0x03
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#define DATAFLASH_BAD_COMMAND 0x04
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#define 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 int addr_dataflash (unsigned long addr);
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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, unsigned long dest, unsigned long size);
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extern void dataflash_print_info (void);
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extern void dataflash_perror (int err);
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#endif
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