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/*
* File : nand.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-05-25 Bernard first version
*/
#ifndef __NAND_H__
#define __NAND_H__
#include <rtthread.h>
#define IO_NF_PFR FM3_GPIO->PFR3
#define IO_NF_DDR FM3_GPIO->DDR3
#define IO_NF_PDOR FM3_GPIO->PDOR3
#define NF_EN 0x0008
#define NF_DATA_DIR 0x0004
#define EXT_BUS_BASE_ADDR 0x60000000
#define EXT_CS7_OFFSET 0x0E000000
#define EXT_CS7_SIZE 0x02000000
#define NF_FLASH_BASE_ADDR (EXT_BUS_BASE_ADDR+EXT_CS7_OFFSET)
#define NF_ALE_OFFSET 0x00003000
#define NF_ADDR_OFFSET 0x00002000
#define NF_CMD_OFFSET 0x00001000
#define NF_DATA_OFFSET 0x00000000
/* NAND command */
#define NAND_CMD_READ0 0x00
#define NAND_CMD_READ1 0x01
#define NAND_CMD_PAGEPROG 0x10
#define NAND_CMD_READOOB 0x50
#define NAND_CMD_ERASE1 0x60
#define NAND_CMD_STATUS 0x70
#define NAND_CMD_SEQIN 0x80
#define NAND_CMD_READID 0x90
#define NAND_CMD_READID1 0x91
#define NAND_CMD_ERASE2 0xd0
#define NAND_CMD_RESET 0xff
#define FLASH_OK 0
#define FLASH_NG 1
/* nand flash device initialization */
void rt_hw_nand_init(void);
#endif
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