📄 nandflash_k9f1208.c
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/*
*********************************************************
* Copyright (c)
* All rights reserved.
*
* 文件名称:nandflash_k9f1208.c
* 文件标识:
* 摘 要:S3C2410 SmartMedia SAMSUNG 64MB (k9f1208) Test Program
* 当前版本:1.0
* 作 者:刘征
* 完成日期:2005.4.3
*
* 取代版本:
* 作 者:
* 完成日期:
*********************************************************
*/
/*
*********************************************************
* 头文件
*********************************************************
*/
#include <string.h>
#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"
/*
*********************************************************
* 宏定义
*********************************************************
*/
#define BAD_CHECK (1)
#define ECC_CHECK (0)
/*
*********************************************************
* 函数原型
*********************************************************
*/
static U16 NF_CheckId(void);
static int NF_EraseBlock(U32 blockNum);
static int NF_ReadPage(U32 block,U32 page,U8 *buffer);
static int NF_WritePage(U32 block,U32 page,U8 *buffer);
//buffer size is 512 bytes
static int NF_IsBadBlock(U32 block);
static int NF_MarkBadBlock(U32 block);
static void NF_Reset(void);
static void NF_Init(void);
int DownloadData(void);
static void InputTargetBlock(void);
/*
*********************************************************
* 变量
*********************************************************
*/
static U32 srcAddress;
static U32 targetBlock; // Block number (0 ~ 4095)
static U32 targetSize; // Total byte size
U32 downloadAddress;
U32 downloadProgramSize=0x0;
/*
*********************************************************
* 函数介绍:本函数是NAND FLASH K9F1208 编程测试函数。
* 输入参数:无
* 输出参数:无
* 返回值 :无
*********************************************************
*/
void K9F1208_Program(void)
{
int i;
int programError=0;
U8 *srcPt,*saveSrcPt;
U32 blockIndex;
downloadAddress=0x30100000;
Uart_Printf("\n[SMC(K9F1208V0M) NAND Flash writing program]\n");
NF_Init();//初始化
rINTMSK = BIT_ALLMSK;
targetSize=downloadProgramSize;
if(targetSize==0)
{
srcAddress=0x30100000;
}
else
srcAddress=downloadAddress+4; //to discard the data head for the size
InputTargetBlock(); //从串口接收烧写文件的各种信息 srcAddress,targetBlock,targetSize will be determined
Uart_Printf("source base address(0x3010000x)=0x%x\n",srcAddress);
Uart_Printf("target start block number =%d\n",targetBlock);
Uart_Printf("target size (0x4000*n) =0x%x\n",targetSize);
srcPt=(U8 *)srcAddress;
blockIndex=targetBlock;
while(1)
{
saveSrcPt=srcPt;
#if BAD_CHECK //坏块检测
if(NF_IsBadBlock(blockIndex)) // 1:bad 0:good
{
blockIndex++; // for next block
continue;
}
#endif
if(!NF_EraseBlock(blockIndex))//块擦除
{
blockIndex++; // for next block
continue;
}
for(i=0;i<32;i++)
{
if(!NF_WritePage(blockIndex,i,srcPt))// block num, page num, buffer
{
programError=1;
break;
}
#if ECC_CHECK
if(!NF_ReadPage(blockIndex,i,srcPt))
{
Uart_Printf("ECC Error(block=%d,page=%d!!!\n",blockIndex,i);
}
#endif
srcPt+=512; // Increase buffer addr one pase size
Uart_Printf(".");
if((U32)srcPt>=(srcAddress+targetSize)) // Check end of buffer
break; // Exit for loop
}
if(programError==1)
{
blockIndex++;
srcPt=saveSrcPt;
programError=0;
continue;
}
if((U32)srcPt>=(srcAddress+targetSize))
break; // Exit while loop
blockIndex++;
}
}
/*
*********************************************************
* 函数介绍:本函数是NAND FLASH K9F1208 擦除程序。
* 输入参数:无
* 输出参数:无
* 返回值 :无
*********************************************************
*/
void K9F1208_Erase(void)
{
int i;
U32 blockIndex=0;
Uart_Printf("\n[ SMC(K9F1208V0M) NAND Flash Erase Program ]\n");
Uart_Printf("\nNow NAND Flash Erasing ....\n");
NF_Init();//初始化
rINTMSK = BIT_ALLMSK; //close all intterrupt
for(blockIndex=0;blockIndex<4096;blockIndex++)
{
#if BAD_CHECK //坏块检测
if(NF_IsBadBlock(blockIndex)) // 1:bad 0:good
{
blockIndex++; // for next block
continue;
}
#endif
if(!NF_EraseBlock(blockIndex))
{
blockIndex++; // for next block
continue;
}
}
Uart_Printf("\nSMC(K9F1208V0M) NAND Flash Erase Completed !!!\n");
}
/*
*********************************************************
* 函数介绍:本函数是输入块号及大小。
* 输入参数:无
* 输出参数:无
* 返回值 :无
*********************************************************
*/
static void InputTargetBlock(void)
{
Uart_Printf("\nSource size:0h~%xh\n",downloadProgramSize);
Uart_Printf("\nAvailable target block number: 0~4095\n");
Uart_Printf("\nInput target block number:");
targetBlock=Uart_GetIntNum(); // Block number(0~4095)
if(targetSize==0)
{
Uart_Printf("Input target size(0x4000*n):");
targetSize=Uart_GetIntNum(); // Total byte size
}
}
/*
*********************************************************
* 函数介绍:本函数是输出坏块号。
* 输入参数:无
* 输出参数:无
* 返回值 :无
*********************************************************
*/
void K9F1208_PrintBadBlockNum(void)
{
int i;
U16 id;
Uart_Printf("\n[SMC(K9F1208V0M) NAND Flash bad block check]\n");
NF_Init();
id=NF_CheckId();//ID校验
Uart_Printf("ID=%x(0xec76)\n",id);
if(id!=0xec76)//这里要给成K9F1208的ID号!!!!!!!!
return;
for(i=0;i<4096;i++)
{
NF_IsBadBlock(i); // Print bad block
}
}
/*
*********************************************************
* 函数介绍:本函数是输出一页数据。
* 输入参数:无
* 输出参数:无
* 返回值 :无
*********************************************************
*/
void K9F1208_PrintBlock(void)// Printf one page
{
int i,j;
U16 id;
U32 block,page;
U8 buffer[512];
Uart_Printf("\n[SMC(K9F1208V0M) NAND Flash block read]\n");
NF_Init();
id=NF_CheckId();
Uart_Printf("ID=%x(0xec76)\n",id);
if(id!=0xec76)
return;
Uart_Printf("Input target block number :");
block=Uart_GetIntNum();
Uart_Printf("Input target page number :");
page=Uart_GetIntNum();
NF_ReadPage(block,page,buffer);
Uart_Printf("block=%d,page=%d:",block,page);
for(j=0;j<512;j++)
{
if(j%16==0)
Uart_Printf("\n%3xh:",j);
Uart_Printf("%02x ",buffer[j]);
}
Uart_Printf("\n");
}
//*************************************************
//** H/W dependent functions **
//*************************************************
// block0: reserved for boot strap
// block1~4095: used for OS image
// badblock SE: xx xx xx xx xx 00 ....
// good block SE: ECC0 ECC1 ECC2 FF FF FF ....
#define WRITEVERIFY (0) //verifing is enable at writing.
#define NF_CMD(cmd) {rNFCMD=cmd;}
#define NF_ADDR(addr) {rNFADDR=addr;}
#define NF_nFCE_L() {rNFCONF&=~(1<<11);}
#define NF_nFCE_H() {rNFCONF|=(1<<11);}
#define NF_RSTECC() {rNFCONF|=(1<<12);}
#define NF_RDDATA() (rNFDATA)
#define NF_WRDATA(data) {rNFDATA=data;}
#define NF_WAITRB() {while(!(rNFSTAT&(1<<0)));}
//wait tWB and check F_RNB pin.
#define ID_K9F1208V0M 0xec76//??确定ID号
#if 1
// HCLK=100Mhz
#define TACLS 0 //1clk(0ns)
#define TWRPH0 3 //3clk(25ns)
#define TWRPH1 0 //1clk(10ns) //TACLS+TWRPH0+TWRPH1>=50ns
#else
// HCLK=50Mhz
#define TACLS 0 //1clk(0ns)
#define TWRPH0 1 //2clk(25ns)
#define TWRPH1 0 //1clk(10ns)
#endif
static U8 seBuf[16]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
// 1block=(512+16)bytes x 32pages
// 4096block
// A[23:14][13:9]
// block page
/*
*********************************************************
* 函数介绍:本函数是底层块擦除程序。
* 输入参数:block--块号
* 输出参数:无
* 返回值 :无
*********************************************************
*/
static int NF_EraseBlock(U32 block)
{
U32 blockPage=(block<<5);
int i;
#if BAD_CHECK//坏块校验
if(NF_IsBadBlock(block))
return 0;
#endif
NF_nFCE_L();//NF的CE(片选)拉低
NF_CMD(0x60); // Erase one block 1st command
NF_ADDR(blockPage&0xff); // Page number=0
NF_ADDR((blockPage>>8)&0xff);
NF_ADDR((blockPage>>16)&0xff);
NF_CMD(0xd0); // Erase one blcok 2nd command
for(i=0;i<10;i++); //wait tWB(100ns)//??????
NF_WAITRB(); // Wait tBERS max 3ms.
NF_CMD(0x70); // Read status command
if (NF_RDDATA()&0x1) // Erase error
{
NF_nFCE_H();
Uart_Printf("[ERASE_ERROR:block#=%d]\n",block);
NF_MarkBadBlock(block);
return 0;
}
else
{
NF_nFCE_H();////NF的CE(片选)拉高
return 1;
}
}
/*
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