嵌入式系统移植三部曲吴素芬

计算机与信息工程学院 09级嵌入式吴素芬

嵌入式系统移植三部曲

一、BootLoader的移植

二、linux的移植

三、根文件系统的移植

一、准备工作

（1）、创建交叉编译环境

1、[[email protected] opt]# ll arm-linux-*

-rwxr-xr-x 1 root root 36273634 06-13 12:21 arm-linux-gcc-2.95.3.tar.bz2

-rwxr-xr-x 1 root root 42745480 06-13 12:22 arm-linux-gcc-3.4.1.tar.bz2

2、[[email protected] opt]# tar -xjvf arm-linux-gcc-2.95.3.tar.bz2 -C /usr/local/arm

tar: /usr/local/arm：无法 chdir: 没有那个文件或目录

tar: 错误不可恢复：现在退出

要先在/usr/local下创建一个arm文件夹，再执行tar -xjvf arm-linux-gcc-2.95.3.tar.bz2 -C /usr/local/arm

3、[[email protected] opt]# gedit /etc/profile

在文件profile中添加

PATH=$PATH:/usr/local/arm/2.95.3/bin

设置编译环境是2.95.3

4、[[email protected] opt]# source /etc/profile //使/etc/profile中添加的一行生效

[[email protected] opt]# arm-linux-gcc -v //查看编译器

Reading specs from /usr/local/arm/2.95.3/lib/gcc-lib/arm-linux/2.95.3/specs

gcc version 2.95.3 20010315 (release)

[[email protected] opt]#

（2）、skyeye的安装

1、[[email protected] opt]# tar -xjvf skyeye－1.2.6_rc1.tar.bz2 -C ./

2、[[email protected] opt]# cd skyeye-1.2.6_rc1

3、[[email protected] skyeye-1.2.6_rc1]# ls

aclocal.m4 ChangeLog configure depcomp LICENSE misc REPORTING-BUGS

arch config.guess configure.in device MAINTAINERS missing TODO

AUTHORS config.h.in COPYING INSTALL Makefile.am NEWS utils

autom4te.cache config.sub dbct install-sh Makefile.in README

4、[[email protected] skyeye-1.2.6_rc1]# ./configure //配置

5、[[email protected] skyeye-1.2.6_rc1]# make //编译

6、[[email protected] skyeye-1.2.6_rc1]# make install //将skyeye安装到/usr/local/bin/

7、[[email protected] skyeye-1.2.6_rc1]# mv /usr/local/bin/skyeye /usr/local/bin/skye1.2.6

//将/usr/local/bin/skyeye改名为：/usr/local/bin/skye1.2.6

二、BootLoader的移植

1．解压u-boot-1.1.4.tar.bz2

[[email protected] opt]# tar -xjvf u-boot-1.1.4.tar.bz2 -C ./

[[email protected] opt]# cd u-boot-1.1.4

2．编辑u-boot根目录中的Makefile文件

[[email protected] u-boot-1.1.4]# gedit Makefile

将

ifeq ($(ARCH),arm)

CROSS_COMPILE = arm-linux-

endif

改为

ifeq ($(ARCH),arm)

CROSS_COMPILE=/usr/local/arm/2.95.3/bin/arm-linux-

endif

在

smdk2410_config : unconfig

@./mkconfig $(@:_config=) arm arm920t smdk2410 NULL s3c24x0

后面添加

sf2410_config : unconfig

@./mkconfig $(@:_config=) arm arm920t sf2410 NULL s3c24x0

3．复制必要的文件，编辑sf2410.h头文件

[[email protected] u-boot-1.1.4]# mkdir board/sf2410

[[email protected] u-boot-1.1.4]# cp board/smdk2410/* board/sf2410

[[email protected] u-boot-1.1.4]# dir board/sf2410/

config.mk flash.c lowlevel_init.S Makefile smdk2410.c u-boot.lds

[[email protected] u-boot-1.1.4]# mv board/sf2410/smdk2410.c board/sf2410/sf2410.c

[[email protected] u-boot-1.1.4]# cp include/configs/smdk2410.h include/configs/sf2410.h

[[email protected] u-boot-1.1.4]# gedit include/configs/sf2410.h

将

#define CFG_PROMPT "SMDK2410 # " /* Monitor Command Prompt */

改为

#define CFG_PROMPT "SF2410 # " /* Monitor Command Prompt */

4．编辑board/sf2410/Makefile文件

[[email protected] u-boot-1.1.4]# gedit board/sf2410/Makefile

将

OBJS := smdk2410.o flash.o

改为

OBJS := sf2410.o flash.o

5．配置u-boot

[[email protected] u-boot-1.1.4]# make sf2410_config

Configuring for sf2410 board...

（1）、修改cpu/arm920t/config.mk文件

[[email protected] u-boot-1.1.4]# gedit cpu/arm920t/config.mk

将

PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu)

改成：

PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,$(call cc-option,-mabi=apcs-gnu,))

（2）、修改cpu/arm920t/config.mk文件

[[email protected] u-boot-1.1.4]# gedit cpu/arm920t/config.mk

将原文件的第58行开始的内容：

SREC = hello_world.srec

BIN = hello_world.bin hello_world

改为

SREC = hello_world.o

BIN = hello_world.o hello_world

6、编译u-boot

[[email protected] u-boot-1.1.4]# make

[[email protected] u-boot-1.1.4]# ll u-boot*

-rwxr-xr-x 1 root root 395773 06-14 17:49 u-boot

-rwxr-xr-x 1 root root 100156 06-14 17:49 u-boot.bin

-rw-r--r-- 1 root root 48690 06-14 17:49 u-boot.map

-rwxr-xr-x 1 root root 300538 06-14 17:49 u-boot.srec

7、编辑skyeye.conf文件

[[email protected] u-boot-1.1.4]# gedit skyeye.conf

内容如下：

# skyeye config file for S3C2410X

cpu: arm920t

mach: s3c2410x

# physical memory

mem_bank: map=M, type=RW, addr=0x00000000, size=0x00800000, file=./u-boot.bin ,boot=yes

mem_bank: map=M, type=RW, addr=0x30000000, size=0x00800000

mem_bank: map=M, type=RW, addr=0x30800000, size=0x00800000

mem_bank: map=M, type=RW, addr=0x31000000, size=0x03000000

# all peripherals I/O mapping area

mem_bank: map=I, type=RW, addr=0x48000000, size=0x20000000

mem_bank: map=I, type=RW, addr=0x19000300, size=0x00000020

net: type=cs8900a, base=0x19000300, size=0x20,int=9, mac=08:00:3E:26:0A:5B, ethmod=tuntap, hostip=10.0.0.1

nandflash: type=s3c2410x,name=K9F1208U0B,dump=./nand.dump

#lcd:type=s3c2410x, mod=gtk

dbct:state=on

8、执行skyeye1.2.6

[[email protected] u-boot-1.1.4]# skyeye1.2.6

...

U-Boot code: 33F80000 -> 33F9873C BSS: -> 33F9C814

RAM Configuration:

Bank #0: 30000000 64 MB

Flash: 512 kB

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

SF2410 #

9、开始移植nand

[[email protected] u-boot-1.1.4]# gedit cpu/arm920t/start.S

将从NOR Flash启动改成从NAND Flash启动。

将以下U－Boot的重定向语句段：

#ifndef CONFIG_SKIP_RELOCATE_UBOOT

relocate: /* relocate U-Boot to RAM */

adr r0, _start /* r0 */

ldr r1, _TEXT_BASE /* test if we run from flash or RAM */

cmp r0, r1 /* don‘t reloc during debug */

beq stack_setup

ldr r2, _armboot_start

ldr r3, _bss_start

sub r2, r3, r2 /* r2 */

add r2, r0, r2 /* r2 */

copy_loop:

ldmia r0!, {r3-r10} /* copy from source address [r0] */

stmia r1!, {r3-r10} /* copy to target address [r1] */

cmp r0, r2 /* until source end addreee [r2] */

ble copy_loop

#endif /* CONFIG_SKIP_RELOCATE_UBOOT */

替换成：

#ifdef CONFIG_S3C2410_NAND_BOOT

@ reset NAND

mov r1, #NAND_CTL_BASE

ldr r2, =0xf830 @ initial value

str r2, [r1, #oNFCONF]

ldr r2, [r1, #oNFCONF]

bic r2, r2, #0x800 @ enable chip

str r2, [r1, #oNFCONF]

mov r2, #0xff @ RESET command

strb r2, [r1, #oNFCMD]

mov r3, #0 @ wait

nand1:

add r3, r3, #0x1

cmp r3, #0xa

blt nand1

nand2:

ldr r2, [r1, #oNFSTAT] @ wait ready

tst r2, #0x1

beq nand2

ldr r2, [r1, #oNFCONF]

orr r2, r2, #0x800 @ disable chip

str r2, [r1, #oNFCONF]

@ get read to call C functions (for nand_read())

ldr sp, DW_STACK_START @ setup stack pointer

mov fp, #0 @ no previous frame, so fp=0

@ copy U-Boot to RAM

ldr r0, =TEXT_BASE

mov r1, #0x0

mov r2, #0x20000

bl nand_read_ll

tst r0, #0x0

beq ok_nand_read

bad_nand_read:

loop2: b loop2 @ infinite loop

ok_nand_read:

@ verify

mov r0, #0

ldr r1, =TEXT_BASE

mov r2, #0x400 @ 4 bytes * 1024 = 4K-bytes

go_next:

ldr r3, [r0], #4

ldr r4, [r1], #4

teq r3, r4

bne notmatch

subs r2, r2, #4

beq stack_setup

bne go_next

notmatch:

loop3: b loop3 @ infinite loop

#endif /* CONFIG_S3C2410_NAND_BOOT */

在

_start_armboot: .word start_armboot

后面加入

.align 2

DW_STACK_START: .word STACK_BASE+STACK_SIZE-4

10、修改board/sf2410/Makefile

[[email protected] u-boot-1.1.4]# gedit board/sf2410/Makefile

将

OBJS := sf2410.o flash.o

改为

OBJS := sf2410.o flash.o nand_read.o

11、创建board/sf2410/nand_read.c文件

[[email protected] u-boot-1.1.4]# gedit board/sf2410/nand_read.c

内容是：

#include

#define __REGb(x) (*(volatile unsigned char *)(x))

#define __REGi(x) (*(volatile unsigned int *)(x))

#define NF_BASE 0x4e000000

#define NFCONF __REGi(NF_BASE + 0x0)

#define NFCMD __REGb(NF_BASE + 0x4)

#define NFADDR __REGb(NF_BASE + 0x8)

#define NFDATA __REGb(NF_BASE + 0xc)

#define NFSTAT __REGb(NF_BASE + 0x10)

#define BUSY 1

#ifndef NAND_SECTOR_SIZE

#define NAND_SECTOR_SIZE 512

#endif

#ifndef NAND_BLOCK_MASK

#define NAND_BLOCK_MASK 511

#endif

inline void wait_idle(void) {

int i;

while(!(NFSTAT & BUSY))

for(i=0; i

}

/* low level nand read function */

int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)

{

int i, j;

if ((start_addr & NAND_BLOCK_MASK) || (size & NAND_BLOCK_MASK)) {

return -1; /* invalid alignment */

}

/* chip Enable */

NFCONF &= ~0x800;

for(i=0; i

for(i=start_addr; i

/* READ0 */

NFCMD = 0;

/* Write Address */

NFADDR = i & 0xff;

NFADDR = (i >> 9) & 0xff;

NFADDR = (i >> 17) & 0xff;

NFADDR = (i >> 25) & 0xff;

wait_idle();

for(j=0; j

*buf = (NFDATA & 0xff);

buf++;

}

/* chip Disable */

NFCONF |= 0x800; /* chip disable */

return 0;

}

12、编辑include/configs/sf2410.h文件

[[email protected] u-boot-1.1.4]# gedit include/configs/sf2410.h

在文件的后部添加

/****************** me add begin *******************/

* Nandflash Boot

#define CONFIG_S3C2410_NAND_BOOT 1

#define STACK_BASE 0x33f00000

#define STACK_SIZE 0x8000

//#define UBOOT_RAM_BASE 0x33f80000

/* NAND Flash Controller */

#define NAND_CTL_BASE 0x4E000000

#define bINT_CTL(Nb) __REG(INT_CTL_BASE + (Nb))

/* Offset */

#define oNFCONF 0x00

#define oNFCMD 0x04

#define oNFADDR 0x08

#define oNFDATA 0x0c

#define oNFSTAT 0x10

#define oNFECC 0x14

/****************** me add end *******************/

13、编译u-boot，然后测试u-boot是否可以从nand启动

[[email protected] u-boot-1.1.4]# make

...

/opt/u-boot-1.1.4/cpu/arm920t/start.S

/opt/u-boot-1.1.4/cpu/arm920t/start.S: Assembler messages:

/opt/u-boot-1.1.4/cpu/arm920t/start.S:285: Error: bad instruction `align 2‘

make: *** [cpu/arm920t/start.o] 错误 1

出现错误。是因为在修改/opt/u-boot-1.1.4/cpu/arm920t/start.S文件时，.align 2的点丢失了！：

[[email protected] u-boot-1.1.4]# ll u-boot*

-rwxr-xr-x 1 root root 397852 06-14 18:11 u-boot

-rwxr-xr-x 1 root root 100564 06-14 18:11 u-boot.bin

-rw-r--r-- 1 root root 49189 06-14 18:11 u-boot.map

-rwxr-xr-x 1 root root 301770 06-14 18:11 u-boot.srec

14、执行如下命令：

此时如果直接执行skyeye1.2.6会出现错误，所以先执行下边命令：

[[email protected] u-boot-1.1.4]# mknandflashdump u-boot.bin nand.dump 0

出现如下错误：

bash: mknandflashdump: command not found

把mknandflashdump和mknandflashdump.c移到/opt/u-boot-1.1.4/下，然后执行下边命令

[[email protected] u-boot-1.1.4]# cp /opt/u-boot-1.1.4/mknandflashdump /bin

//把mknandflashdump放到自动搜索路径的文件夹下，再次执行mknandflashdump u-boot.bin nand.dump 0这条命令即可

[[email protected] u-boot-1.1.4]# mknandflashdump u-boot.bin nand.dump 0

finish

[[email protected] u-boot-1.1.4]# ll nand.dump

---------- 1 root root 69206016 06-14 18:16 nand.dump

[[email protected] u-boot-1.1.4]# ll nand.dump

-rw-rw-rw- 1 root root 69206016 06-14 18:16 nand.dump

[[email protected] u-boot-1.1.4]# skyeye1.2.6 //执行skyeye1.2.6

...

Bank #0: 30000000 64 MB

Flash: 512 kB

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

SF2410 #

15、编辑include/configs/sf2410.h文件

[[email protected] u-boot-1.1.4]# gedit include/configs/sf2410.h

修改内容：

在

#define CONFIG_BAUDRATE 115200

后面添加

/*********************** me add begin *************************************/

/* enable passing of ATAGs */

#define CONFIG_CMDLINE_TAG 1

#define CONFIG_SETUP_MEMORY_TAGS 1

#define CONFIG_INITRD_TAG 1

/*********************** me add end *************************************/

将

/*CFG_CMD_NAND |*/ \

改为

CFG_CMD_NAND | \

将

/*#define CONFIG_BOOTARGS "root=ramfs devfs=mount console=ttySA0,9600" */

改为

#define CONFIG_BOOTARGS "noinitrd
root=/dev/nfs rw nfsroot=10.0.0.1:/tmp/nfs
ip=10.0.0.110:10.0.0.1:10.0.0.1:255.255.255.0 init=linuxrc
console=ttySAC0,115200 mem=64M"

将

/*#define CONFIG_BOOTCOMMAND "tftp; bootm" */

改为

#define CONFIG_BOOTCOMMAND "tftp 0x31000000 uImage;bootm 0x31000000"

将第十一步在文件尾添加的内容替换成下边内容：

/****************** me add begin *******************/

// #define CFG_ENV_IS_IN_FLASH 1 /*将该行注释，添加下面一行*/

#define CFG_ENV_IS_IN_NAND 1 /*该行很重要，没有该行，saveenv命令将失效*/

#define CFG_ENV_SIZE 0x10000 /* Total Size of Environment Sector */

#define CFG_NAND_LEGACY 1

#define CFG_ENV_OFFSET 0X20000 /*环境变量在Nand Flash的0x20000处*/

#if (CONFIG_COMMANDS & CFG_CMD_NAND)

#define CFG_NAND_BASE 0x4E000000 /* physical address to access nand at CS0*/

/* Nand Flash控制器在SFR区起始寄存器地址 */

#define CFG_MAX_NAND_DEVICE 1 /*支持Nand Flash设备的最大个数*/

#define SECTORSIZE 512

#define NAND_SECTOR_SIZE SECTORSIZE

#define NAND_BLOCK_MASK 511

#define ADDR_COLUMN 1

#define ADDR_PAGE 3

#define ADDR_COLUMN_PAGE 4

#define NAND_ChipID_UNKNOWN 0x00 /* 未知芯片的ID号 */

#define NAND_MAX_FLOORS 1

#define NAND_MAX_CHIPS 1 /* 板子上NAND Flash芯片的最大个数 */

/*下面7行是Nand Flash命令层底层的接口函数 */

#define WRITE_NAND_COMMAND(d, adr) {rNFCMD = d;}

#define WRITE_NAND_ADDRESS(d, adr) {rNFADDR = d;}

#define WRITE_NAND(d, adr) {rNFDATA = d;}

#define READ_NAND(adr) (rNFDATA)

#define NAND_WAIT_READY(nand) {while(!(rNFSTAT&(1

#define NAND_DISABLE_CE(nand) {rNFCONF |= (1

#define NAND_ENABLE_CE(nand) {rNFCONF &= ~(1

/* the following functions are NOP‘s because S3C24X0 handles this in hardware */

#define NAND_CTL_CLRALE(nandptr)

#define NAND_CTL_SETALE(nandptr)

#define NAND_CTL_CLRCLE(nandptr)

#define NAND_CTL_SETCLE(nandptr)

#define CONFIG_MTD_NAND_VERIFY_WRITE 1 /* 允许Nand Flash写校验 */

* Nandflash Boot

#define CONFIG_S3C2410_NAND_BOOT 1

#define STACK_BASE 0x33f00000

#define STACK_SIZE 0x8000

//#define UBOOT_RAM_BASE 0x33f80000

/* NAND Flash Controller */

#define NAND_CTL_BASE 0x4E000000

#define bINT_CTL(Nb) __REG(INT_CTL_BASE + (Nb))

/* Offset */

#define oNFCONF 0x00

#define oNFCMD 0x04

#define oNFADDR 0x08

#define oNFDATA 0x0c

#define oNFSTAT 0x10

#define oNFECC 0x14

#define rNFCONF (*(volatile unsigned int *)0x4e000000)

#define rNFCMD (*(volatile unsigned char *)0x4e000004)

#define rNFADDR (*(volatile unsigned char *)0x4e000008)

#define rNFDATA (*(volatile unsigned char *)0x4e00000c)

#define rNFSTAT (*(volatile unsigned int *)0x4e000010)

#define rNFECC (*(volatile unsigned int *)0x4e000014)

#define rNFECC0 (*(volatile unsigned char *)0x4e000014)

#define rNFECC1 (*(volatile unsigned char *)0x4e000015)

#define rNFECC2 (*(volatile unsigned char *)0x4e000016)

#endif /* CONFIG_COMMANDS & CFG_CMD_NAND*/

/****************** me add end *******************/

16、编辑board/sf2410/sf2410.c文件

[[email protected] u-boot-1.1.4]# gedit board/sf2410/sf2410.c

在文件的尾部添加如下内容：

/****************** me add begin *******************/

#if (CONFIG_COMMANDS & CFG_CMD_NAND)

typedef enum {

NFCE_LOW,

NFCE_HIGH

} NFCE_STATE;

static inline void NF_Conf(u16 conf)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

nand->NFCONF = conf;

}

static inline void NF_Cmd(u8 cmd)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

nand->NFCMD = cmd;

}

static inline void NF_CmdW(u8 cmd)

{

NF_Cmd(cmd);

udelay(1);

}

static inline void NF_Addr(u8 addr)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

nand->NFADDR = addr;

}

static inline void NF_SetCE(NFCE_STATE s)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

switch (s) {

case NFCE_LOW:

nand->NFCONF &= ~(1

break;

case NFCE_HIGH:

nand->NFCONF |= (1

break;

}

static inline void NF_WaitRB(void)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

while (!(nand->NFSTAT & (1

}

static inline void NF_Write(u8 data)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

nand->NFDATA = data;

}

static inline u8 NF_Read(void)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

return(nand->NFDATA);

}

static inline void NF_Init_ECC(void)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

nand->NFCONF |= (1

}

static inline u32 NF_Read_ECC(void)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

return(nand->NFECC);

}

#endif

* NAND flash initialization.

#if (CONFIG_COMMANDS & CFG_CMD_NAND)

extern ulong nand_probe(ulong physadr);

static inline void NF_Reset(void)

{

int i;

NF_SetCE(NFCE_LOW);

NF_Cmd(0xFF); /* reset command */

for(i = 0; i

NF_WaitRB(); /* wait 200~500us; */

NF_SetCE(NFCE_HIGH);

}

static inline void NF_Init(void)

{

#if 0 /* a little bit too optimistic */

#define TACLS 0

#define TWRPH0 3

#define TWRPH1 0

#else

#define TACLS 0

#define TWRPH0 4

#define TWRPH1 2

#endif

NF_Conf((1

/*nand->NFCONF
=
(1

/* 1 1 1 1, 1 xxx, r xxx, r xxx */

/* En 512B 4step ECCR nFCE=H tACLS tWRPH0 tWRPH1 */

NF_Reset();

}

void nand_init(void)

{

S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

NF_Init();

#ifdef DEBUG

printf("NAND flash probing at 0x%.8lX\n", (ulong)nand);

#endif

printf ("%4lu MB\n", nand_probe((ulong)nand) >> 20);

}

#endif

/****************** me add end *******************/

17、修改 common/cmd_nand.c文件

[[email protected] u-boot-1.1.4]# gedit common/cmd_nand.c

将NanD_ReadBuf函数中的

NanD_Command (nand, NAND_CMD_READ0);

改为

//NanD_Command (nand, NAND_CMD_READ0);

18、编译、测试

[[email protected] u-boot-1.1.4]# make

[[email protected] u-boot-1.1.4]# ll u-boot*

-rwxr-xr-x 1 root root 440745 06-14 18:46 u-boot

-rwxr-xr-x 1 root root 115460 06-14 18:46 u-boot.bin

-rw-r--r-- 1 root root 50542 06-14 18:46 u-boot.map

-rwxr-xr-x 1 root root 346442 06-14 18:46 u-boot.srec

[[email protected] u-boot-1.1.4]# ./mknandflashdump u-boot.bin nand.dump 0

finish

[[email protected] u-boot-1.1.4]# skyeye1.2.6

...

U-Boot code: 33F80000 -> 33F9C304 BSS: -> 33FA03E0

RAM Configuration:

Bank #0: 30000000 64 MB

Flash: 512 kB

NAND: 64 MB

*** Warning - bad CRC or NAND, using default environment

In: serial

Out: serial

Err: serial

Hit any key to stop autoboot: 0

TFTP from server 10.0.0.1; our IP address is 10.0.0.110

Filename ‘uImage‘.

Load address: 0x31000000

Loading: checksum bad

checksum bad

T T T T T .................

出现

Flash: 512 kB

NAND: 64 MB

表示实验成功，T代表try尝试去连接服务器，因为没有建立服务器所以不能连接成功。

三、linux移植

因为linux2.6.14的交叉编译器为gcc-3.4.1，所以要先创建交叉编译环境

解压arm-linux-gcc-3.4.1.tar.bz2

[[email protected] opt]# tar -xjvf arm-linux-gcc-3.4.1.tar.bz2 -C /usr/local/arm

1、解压linux-2.6.14.7.tar.bz2

[[email protected] opt]# tar -xjvf linux-2.6.14.7.tar.bz2 -C ./

[[email protected] opt]# cd linux-2.6.14.7

[[email protected] linux-2.6.14.7]# dir

2、编辑Makefile文件

[[email protected] linux-2.6.14.7]# gedit Makefile

将

ARCH ?= $(SUBARCH)

CROSS_COMPILE ?=

改为

ARCH ?= arm

CROSS_COMPILE ?= /usr/local/arm/3.4.1/bin/arm-linux- // linux2.6.14的交叉编译器为gcc-3.4.1

3、复制cs8900

[[email protected] linux-2.6.14.7]# cp ../cs8900/cs8900.c drivers/net/arm/

cp: 无法 stat “../cs8900/cs8900.c”: 没有那个文件或目录

在/opt/下建立一个文件夹，把cs8900.c和cs8900.h移到cs8900文件夹下即可

[[email protected] linux-2.6.14.7]# cp ../cs8900/cs8900.c drivers/net/arm/

[[email protected] linux-2.6.14.7]# cp ../cs8900/cs8900.h drivers/net/arm/

[[email protected] linux-2.6.14.7]# ls drivers/net/arm

am79c961a.c cs8900.c ether00.c ether1.h ether3.h Kconfig

am79c961a.h cs8900.h ether1.c ether3.c etherh.c Makefile

4、修改drivers/net/arm/目录下的Kconfig文件

[[email protected] linux-2.6.14.7]# gedit drivers/net/arm/Kconfig

在最后添加如下内容：

config ARM_CS8900

tristate "CS8900 support"

depends on NET_ETHERNET && ARM && ARCH_SMDK2410

help

Support for CS8900A chipset based Ethernet cards. If you have a network

(Ethernet) card of this type, say Y and read the Ethernet-HOWTO, available

from as well as .To compile this driver as a module, choose M here and read.

The module will be called cs8900.o.

5、修改drivers/net/arm/目录下的Makefile文件，

[[email protected] linux-2.6.14.7]# gedit drivers/net/arm/Makefile

在文件最后添加如下内容：

obj-$(CONFIG_ARM_CS8900) += cs8900.o

6、编辑arch/arm/mach-s3c2410/mach-smdk2410.c文件

[[email protected] linux-2.6.14.7]# ls arch/arm/mach-s3c2410/

[[email protected]]# gedit arch/arm/mach-s3c2410/mach-smdk2410.c

添加一个头文件

#include

将

static struct map_desc smdk2410_iodesc[] __initdata = {

/* nothing here yet */

};

改为

static struct map_desc smdk2410_iodesc[] __initdata = {

/* nothing here yet */

/* Map the ethernet controller CS8900A */

{ vSMDK2410_ETH_IO, pSMDK2410_ETH_IO, SZ_1M, MT_DEVICE }

};

7、在include/asm-arm/arch-s3c2410/目录下创建smdk2410.h文件

[[email protected]]#gedit include/asm-arm/arch-s3c2410/smdk2410.h

文件的内容如下：

#ifndef _INCLUDE_SMDK2410_H_

#define _INCLUDE_SMDK2410_H_

#include

#define pSMDK2410_ETH_IO 0x19000000

#define vSMDK2410_ETH_IO 0xE0000000

#define SMDK2410_ETH_IRQ IRQ_EINT9

#endif // _INCLUDE_SMDK2410_H_

8、设置Flash分区

在此要编辑3个文件：devs.c、mach-smdk2410.c、s3c2410.c。

（1）编辑devs.c文件，指明分区信息

[[email protected] linux-2.6.14.7]# gedit arch/arm/mach-s3c2410/devs.c

在文件的前面添加如下内容：

/*nand */

#include

/* NAND Controller */

/************************ 建立Nand Flash分区表 ************************/

/* 一个Nand Flash总共64MB, 按如下大小进行分区 */

name：代表分区名字

size：代表Flash分区大小（单位：字节）

offset：代表Flash分区的起始地址（相对于0x0的偏移）

static struct mtd_partition partition_info[] =

{

{ /* 1MB */

size: 0x00100000,

offset: 0x0,

{ /* 3MB */

size: 0x00300000,

offset: 0x00100000,

{ /* 40MB */

size: 0x02800000,

offset: 0x00400000,

{ /* 20MB */

size: 0x00f00000,

offset: 0x02d00000,

}

};

/************************ 加入Nand Flash分区 ************************/

nr_partitions：指明partition_info中定义的分区数目

partitions：分区信息表

struct s3c2410_nand_set nandset =

{

nr_partitions: 4, /* the number of partitions */

partitions: partition_info, /* partition table */

};

/************************ 建立Nand Flash芯片支持 ************************/

struct s3c2410_platform_nand superlpplatform=

{

tacls:0,

twrph0:30,

twrph1:0,

sets: &nandset,

nr_sets: 1,

};

另外，还要修改该文件中s3c_device_nand结构体变量，添加对dev成员的赋值。

struct platform_device s3c_device_nand = {

.name = "s3c2410-nand", /* device name */

.id = -1, /* device id */

.num_resources = ARRAY_SIZE(s3c_nand_resource),

.resource = s3c_nand_resource, /* Nand Flash Controller Registers */

.dev = /* Add the Nand Flash device */

{

.platform_data = &superlpplatform

}

};

（2）编辑mach-smdk2410.c文件，指定启动时初始化kernel启动时依据对分区的设置进行初始化。

[[email protected]]#gedit arch/arm/mach-s3c2410/mach-smdk2410.c

修改smdk2410_devices[]，指明初始化时，包括前面设置的Flash分区信息。

static struct platform_device *smdk2410_devices[] __initdata = {

&s3c_device_usb,

&s3c_device_lcd,

&s3c_device_wdt,

&s3c_device_i2c,

&s3c_device_iis,

/* 添加如下语句 */

&s3c_device_nand,

};

（3）编辑s3c2410.c文件，禁止Flash ECC校验

[[email protected] linux-2.6.14.7]# gedit drivers/mtd/nand/s3c2410.c

在s3c2410_nand_init_chip()函数中。

将

chip->eccmode = NAND_ECC_SOFT;

改为

chip->eccmode = NAND_ECC_NONE;

9、配置内核

（1）支持启动时挂载devfs

找到menu "Pseudo filesystems"在其后边添加如下语句：

config DEVFS_FS

bool "/dev file system support (OBSOLETE)"

default y

config DEVFS_MOUNT

bool "Automatically mount at boot"

default y

depends on DEVFS_FS

（2）配置内核，产生.config文件

[[email protected] linux-2.6.14.7]# cp arch/arm/configs/smdk2410_defconfig .config

[[email protected] linux-2.6.14.7]# make menuconfig //开始配置内核

Loadable module support --->

[*] Enable loadable module support

# 设置内核启动参数

Boot options >

将

(root=1f04 mem=32M) Default kernel command string

改为

noinitrd mem=64M root=/dev/mtdblock2 init=/linuxrc console=ttySAC0,115200

Floating point emulation --->

[*] NWFPE math emulation

//This is necessary to run most binaries!!!

#接下来要做的是对内核MTD子系统的设置

Device Drivers --->

Memory Technology Devices (MTD) --->

Memory Technology Device (MTD) support

[*] MTD partitioning support

#支持MTD分区，这样我们在前面设置的分区才有意义

[*] Command line partition table parsing

#支持从命令行设置flash分区信息，灵活

RAM/ROM/Flash chip drivers --->

Detect flash chips by Common Flash Interface (CFI) probe

Detect non-CFI AMD/JEDEC-compatible flash chips

[ ] Flash chip driver advanced configuration options

Support for Intel/Sharp flash chips

Support for AMD/Fujitsu flash chips

(0) Retry failed commands (erase/program) (NEW)

> Support for ST (Advanced Architecture) flash chips

> Support for RAM chips in bus mapping

Support for ROM chips in bus mapping

> Support for absent chips in bus mapping

> XIP aware MTD support

NAND Flash Device Drivers --->

NAND Device Support

NAND Flash support for S3C2410/S3C2440 SoC

# 内核支持从Ramdisk启动

Device Drivers --->

Block devices --->

Loopback device support

Network block device support

RAM disk support

(16) Default number of RAM disks

(4096) Default RAM disk size (kbytes)

[*] Initial RAM disk (initrd) support

# 设置CS8900的支持, 将前面添加的网卡驱动程序，以静态的方式添加到内核中

Device Drivers --->

Network device support --->

Ethernet (10 or 100Mbit) --->

[*] Ethernet (10 or 100Mbit)

CS8900 support

#接下来要做的是对串口的设置

Device Drivers --->

Character devices --->

[*] Non-standard serial port support

[*] S3C2410 RTC Driver

#接下来要做的是针对文件系统的设置

File systems --->

Second extended fs support

ROM file system support #支持romfs

Pseudo filesystems --->

[*] /dev file system support (OBSOLETE)

[*] Automatically mount at boot (NEW)

[*] /proc file system support

[*] Virtual memory file system support (former shm fs)

Miscellaneous filesystems --->

Journalling Flash File System (JFFS) support #支持JFFS

(0) JFFS debugging verbosity (0 = quiet, 3 = noisy) (NEW)

[*] JFFS stats available in /proc filesystem

Journalling Flash File System v2 (JFFS2) support #支持JFFS2

(0) JFFS2 debugging verbosity (0 = quiet, 2 = noisy) (NEW)

[*] JFFS2 write-buffering support (NEW)

[ ] Advanced compression options for JFFS2 (NEW)

Compressed ROM file system support (cramfs) #支持cramfs

Network File Systems --->

NFS file system support

[*] Provide NFSv3 client support

[*] Root file system on NFS

保存退出，产生.config文件。

10、编译内核，创建uImage，将uImage复制到tftp服务器的根目录（/tftpboot/）

[[email protected] linux-2.6.14.7]# make

...

/bin/sh: /usr/local/arm/3.4.1/bin/arm-linux-: 没有那个文件或目录

make[1]: *** [arch/arm/kernel/asm-offsets.s] 错误 1

make: *** [prepare0] 错误 2

出现错误。

将Makefile文件中的$(CROSS_COMPILE)改成绝对路径 /usr/local/arm/3.4.1/bin/arm-linux-

把解压后的文件夹/usr/local/arm/usr/local/arm/3.4.1/中的3.4.1文件夹移到/usr/local/arm/下

再次执行make命令。

...

OBJCOPY arch/arm/boot/zImage

Kernel: arch/arm/boot/zImage is ready

Building modules, stage 2.

MODPOST

表示成功。

[[email protected] linux-2.6.14.7]# cp arch/arm/boot/compressed/vmlinux ../u-boot-1.1.4/tools/

[[email protected] linux-2.6.14.7]# cd ../u-boot-1.1.4/tools/

[[email protected] tools]# ./mkimage -A arm -O linux -T kernel -C none -a 30008000 -e 30008000 -n linux-2.6.14.7 -d vmlinux uImage //用mkimage将内核映像（vmlinux）进行转换

[[email protected] tools]# cp uImage ../

[[email protected] tools]# cp initrd.img ../

cp: 无法 stat “initrd.img”: 没有那个文件或目录

出现错误。将initrd.img移到/opt/u-boot-1.1.4/tools/文件夹下即可

[[email protected] tools]# cp uImage /tftpboot/

cp: 无法创建一般文件“/tftpboot/”: 是一个目录

出现错误。在/下建立一个文件夹，名字为tftpboot

[[email protected] tools]# cp uImage /tftpboot/

[[email protected] tools]# cp initrd.img /tftpboot/

[[email protected] tools]# cp ../u-boot.bin /tftpboot/

[[email protected] tools]# cp initrd.img /tmp/nfs/

cp: 无法创建一般文件“/tmp/nfs/”: 是一个目录

出现错误。在/tmp/下建立一个文件夹，名字为nfs

11、执行skyeye1.2.6，通过u-boot-1.1.4引导linux-2.6.14.7

[[email protected] u-boot-1.1.4]# skye1.2.6

要先搭建tftp服务器，才会出现如下信息

**************************** WARNING **********************************

If you want to run ELF image, you should use -e option to indicate

your elf-format image filename. Or you only want to run binary image,

you need to set the filename of the image and its entry in skyeye.conf.

***********************************************************************

Your elf file is little endian.

arch: arm

... // 此处省略

U-Boot 1.1.4 (Jun 14 2011 - 09:30:43)

U-Boot code: 33F80000 -> 33F9C304 BSS: -> 33FA03E0

RAM Configuration:

Bank #0: 30000000 64 MB

Flash: 512 kB

NAND: 64 MB

*** Warning - bad CRC or NAND, using default environment

In: serial

Out: serial

Err: serial

Hit any key to stop autoboot: 0

TFTP from server 10.0.0.1; our IP address is 10.0.0.110

Filename ‘uImage‘.

Load address: 0x31000000

Loading: checksum bad

#################################################################

######

done

... // 此处省略

Verifying Checksum ... OK

Starting kernel ...

Uncompressing Linux................................................................. done, booting the kernel.

... // 此处省略

重启计算机后会出现错误，执行如下命令即可：

[[email protected] opt]# service xinetd restart

[[email protected] opt]# iptables -F

四、根文件系统的移植

1、解压busybox-1.13.4.tar.bz2

[[email protected] opt]# tar -xjvf busybox-1.13.4.tar.bz2 -C ./

[[email protected] opt]# cd busybox-1.13.4

2、编辑Makefile文件

[[email protected] busybox-1.13.4]# gedit Makefile

将

CROSS_COMPILE ?=

改为

CROSS_COMPILE ?=/usr/local/arm/3.4.1/bin/arm-linux-

将

ARCH ?= $(SUBARCH)

改为

ARCH ?= arm

3、进行默认配置

[[email protected] busybox-1.13.4]# make defconfig //恢复默认配置

4、对配置信息进行修改

[[email protected] busybox-1.13.4]# make menuconfig

在弹出的TUI界面中进行如下配置：

检查Miscellaneous Utilities--->

taskset 是否去除

同时设置如下：

Busybox Settings --->

Build Options --->

[*]Build BusyBox as a static binry (no shared libs) //选用静态连接

[*]Build with Large File Support (for accessing files > 2 GB)

(/usr/local/arm/3.4.1/bin/arm-linux-) Cross Compiler prefix

Installation Options --->

[*] Don‘t use /usr

(./_install) BusyBox installation prefix //安装路径

Busybox Library Tuning --->

(6) Minimum password length

(2) MD5: Trade Bytes for Speed

[*] Faster /proc scanning code (+100 bytes)

[ ] Support for /etc/networks

[*] Command line editing

(1024) Maximum length of input

[*] vi-style line editing commands

(15) History size

[*] History saving

[*] Tab completion

[*] Username completion

[*] Fancy shell prompts //Setting this option allows for prompts to use things like \w and

// \$ and escape codes.

[ ] Give more precise messages when copy fails (cp, mv etc)

(4) Copy buffer size, in kilobytes

[ ] Use clock_gettime(CLOCK_MONOTONIC) syscall

[*] Use ioctl names rather than hex values in error messages

[*] Support infiniband HW

设置完毕后，保存、退出。

5、编译

[[email protected] busybox-1.13.4]# make

此时编译会出错，networking/interface.c:818: error: `ARPHRD_INFINIBAND‘ undeclared here (not in a function)

networking/interface.c:818: error: initializer element is not constant

networking/interface.c:818: error: (near initialization for `ib_hwtype.type‘)

make[1]: *** [networking/interface.o] 错误 1

make: *** [networking] 错误 2

需要编辑networking/interface.c文件。

将第818行的.type = ARPHRD_INFINIBAND,改为 .type = -1,再次执行make命令

如果成功，会出现如下信息：

--------------------------------------------------

You will probably need to make your busybox binary

setuid root to ensure all configured applets will

work properly.

--------------------------------------------------

6、修改_install/bin/busybox文件的属性。

[[email protected] busybox-1.13.4]# make install

[[email protected] busybox-1.13.4]# ll _install/bin/busybox

-rwxr-xr-x 1 root root 1705032 06-14 21:25 _install/bin/busybox

[[email protected] busybox-1.13.4]# chmod 4755 ./_install/bin/busybox

[[email protected] busybox-1.13.4]# ll _install/bin/busybox

-rwsr-xr-x 1 root root 1705032 06-14 21:25 _install/bin/busybox

[[email protected] busybox-1.13.4]# ll _install/

[[email protected] busybox-1.13.4]#

[[email protected] busybox-1.13.4]# cd _install/

[[email protected] _install]# pwd

/opt/busybox-1.13.4/_install

7、对配置信息进行修改

[[email protected] _install]# cd /tmp/nfs

（1）在/tmp/nfs中创建所需的目录

[[email protected] nfs]# mkdir -p bin sbin lib/modules etc/init.d dev usr/bin usr/sbin usr/lib proc sys home root boot mnt/etc mnt/jffs2 mnt/yaffs mnt/data mnt/temp var/lib var/lock var/log var/run var/tmp tmp

[[email protected] nfs]# chmod 1777 tmp

[[email protected] nfs]# chmod 1777 var/tmp

[[email protected] nfs]# cd dev/

[[email protected] dev]# pwd

/tmp/nfs/dev

[[email protected] dev]# mknod -m 600 console c 5 1

[[email protected] dev]# mknod -m 666 null c 1 3

（2）复制文件到/tmp/nfs中

将/root/opt/busybox-1.13.4/_install中的内容复制到/tmp/nfs中。

[[email protected] dev]# cd /opt/busybox-1.13.4/_install

[[email protected] _install]# pwd

/opt/busybox-1.13.4/_install

[[email protected] _install]# cp -a bin /tmp/nfs/

[roo[email protected] _install]# cp -a sbin /tmp/nfs/

[[email protected] _install]# ll linuxrc

lrwxrwxrwx 1 root root 11 06-14 21:25 linuxrc -> bin/busybox

[[email protected] _install]# cp -a linuxrc /tmp/nfs/

[[email protected] _install]# ll /tmp/nfs/linuxrc

lrwxrwxrwx 1 root root 11 06-14 21:35 /tmp/nfs/linuxrc -> bin/busybox

[[email protected] _install]# cd ..

[[email protected] busybox-1.13.4]# pwd

/opt/busybox-1.13.4

[[email protected] busybox-1.13.4]# cp -a examples/bootfloppy/etc/* /tmp/nfs/etc/

[[email protected] busybox-1.13.4]# ls /tmp/nfs/etc/

fstab init.d inittab profile

8、创建配置文件

（1）编写etc/inittab文件、修改其权限

[[email protected] busybox-1.13.4]# cd /tmp/nfs/

[[email protected] nfs]# gedit etc/inittab

文件内容如下：

::sysinit:/etc/init.d/rcS #指定系统初始化脚本文件

::respawn:-/bin/login #加上-语句会在登陆终端之后调用/etc/目录下的profile文件

::restart:/sbin/init #指定系统重启时执行的初始化程序

tty0::respawn:-/bin/login

::shutdown:/bin/umount -a -r #指定关机时执行的操

::shutdown:/sbin/swapoff -a

[[email protected] nfs]# ll etc/inittab

-rw-r--r-- 1 root root 174 06-14 21:44 etc/inittab

[[email protected] nfs]# chmod 755 etc/inittab

（2）编写etc/init.d/rcS文件、修改其权限

[[email protected] nfs]# gedit etc/init.d/rcS

文件内容如下：

#!/bin/sh

# mount all filesystem defined in "fstab"

echo "#mount all......."

/bin/mount -a

/bin/mknod -m 600 /dev/console c 5 1

/bin/mknod -m 666 /dev/null c 1 3

/bin/mknod -m 666 /dev/tty0 c 4 0

/bin/mknod -m 666 /dev/mtdblock0 b 31 0

/bin/mknod -m 666 /dev/mtdblock1 b 31 1

/bin/mknod -m 666 /dev/mtdblock2 b 31 2

/bin/mknod -m 666 /dev/mtdblock3 b 31 3

#/bin/mount -t ext2 /dev/mtdblock3 /mnt/temp/

echo "******************************************************************"

echo " SF 2410 Rootfs made by wsf, 2011.06

echo "******************************************************************"

//可更改，作为自己与别人的不同之处

[[email protected] nfs]# ll etc/init.d/rcS

-rwxr-xr-x 1 root root 621 06-14 21:49 etc/init.d/rcS

[[email protected] nfs]# chmod 755 etc/init.d/rcS

（3）编写etc/fstab文件、修改其权限

[[email protected] nfs]# gedit etc/fstab

文件内容如下：

proc /proc proc defaults 0 0

sysfs /sys sysfs defaults 0 0

none /tmp ramfs defaults 0 0

mdev /dev ramfs defaults 0 0

[[email protected] nfs]# ll etc/fstab

-rw-r--r-- 1 root root 117 06-14 21:51 etc/fstab

[[email protected] nfs]# chmod 755 etc/fstab

（4）编写etc/proflie文件、修改其权限

[[email protected] nfs]# gedit etc/proflie

文件内容如下：

# /etc/profile: system-wide .profile file for the Bourne shells

echo

echo -n "Processing /etc/profile... "

# no-op

# Set search library path

echo "Set search library path in /etc/profile"

export LD_LIBRARY_PATH=/lib:/usr/lib

# Set user path

echo "Set user path in /etc/profile"

export PATH=/bin:/sbin:/usr/bin:/usr/sbin #设置命令搜索路径

export HISTSIZE=100

export PS1=‘[\[email protected]\h \W]\$ ‘

alias ll=‘ls -l‘

#/sbin/ifconfig eth0 192.168.1.22 netmask 255.255.255.0

/sbin/ifconfig lo 127.0.0.1

echo "Configure net done"

echo "All Done"

echo

（5）创建密码文件、修改其权限

下面3个文件可以从宿主机中复制，只留下root帐号。

[[email protected] nfs]# cp /etc/passwd etc/ ;cp /etc/shadow etc/ ;cp /etc/group etc/

[[email protected] nfs]# chmod 600 etc/shadow

[[email protected] nfs]# gedit etc/passwd

内容是文件的第一行，把其他行删除，将bash改成sh

[[email protected] nfs]# gedit etc/shadow

内容是文件第一行

[[email protected] nfs]# gedit etc/group

内容是文件第一行

//这样设置在登录界面的密码是本机密码，如果在登录界面不知道密码，可将etc/passwd里的root用户中的x删除，在进入后，可以重新设置密码。

（6）为mdev创建配置文件

[[email protected] nfs]# gedit etc/mdev.conf

内容是：空

[[email protected] nfs]# ll etc/

（7）删除备份文件

[[email protected] nfs]# rm etc/*~ etc/init.d/*~

9、复制常用的库文件

编写脚本文件copy_lib.sh。

[[email protected] nfs]# gedit copy_lib.sh

文件内容如下：

#!/bin/bash

#You should put this file cp.sh in /usr/local/arm/3.4.1/arm-linux/lib/

ROOTFS_LIB=/tmp/nfs/lib/

for file in libc libcrypt libdl libm libpthread libresolv libutil

cp $file-*.so ${ROOTFS_LIB}

cp -d $file.so.[*0-9] ${ROOTFS_LIB}

done

cp -d ld*.so* ${ROOTFS_LIB}

[[email protected] nfs]# ll copy_lib.sh

-rw-r--r-- 1 root root 274 06-14 21:58 copy_lib.sh

[[email protected] nfs]# chmod a+x copy_lib.sh

[[email protected] nfs]# cp copy_lib.sh /usr/local/arm/3.4.1/arm-linux/lib/

[[email protected] nfs]# cd /usr/local/arm/3.4.1/arm-linux/lib/

[[email protected] lib]# ./copy_lib.sh

[[email protected] lib]# cd -

/tmp/nfs

[[email protected] nfs]# ll lib

10、完整的启动过程（u-boot、内核、文件系统）

（1）编辑/etc/xinetd.d/tftp文件

[[email protected] opt]# gedit /etc/xinetd.d/tftp

（2）重启tftp服务器

[[email protected] opt]# service xinetd restart

停止 xinetd： [确定]

启动 xinetd： [确定]

（3）编辑/etc/exports文件

[[email protected] opt]# gedit /etc/exports

（4）重启NFS服务器

[[email protected] u-boot-1.1.4]# service nfs restart

关闭 NFS mountd： [确定]

关闭 NFS 守护进程： [确定]

关闭 NFS quotas： [确定]

关闭 NFS 服务： [确定]

启动 NFS 服务： [确定]

关掉 NFS 配额： [确定]

启动 NFS 守护进程： [确定]

启动 NFS mountd： [确定]

[[email protected] u-boot-1.1.4]# exportfs

/tmp/nfs

[[email protected] u-boot-1.1.4]# exportfs -ra

（5）完整的启动过程（u-boot、内核、文件系统、用户程序），使用NFS文件系统

[[email protected] u-boot-1.1.4]# skyeye1.2.6

**************************** WARNING **********************************

If you want to run ELF image, you should use -e option to indicate

your elf-format image filename. Or you only want to run binary image,

you need to set the filename of the image and its entry in skyeye.conf.

***********************************************************************

……

Hit any key to stop autoboot: 0

SF2410 # run bootcmd

TFTP from server 10.0.0.1; our IP address is 10.0.0.110

Filename ‘uImage‘.

Load address: 0x31000000

Loading: checksum bad

checksum bad

#################################################################

################################

done

Bytes transferred = 1161416 (11b8c8 hex)

## Booting image at 31000000 ...

Image Name: linux-2.6.14.7

Created: 2009-05-24 11:22:39 UTC

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 1161352 Bytes = 1.1 MB

Load Address: 30008000

Entry Point: 30008000

Verifying Checksum ... OK

Starting kernel ...

Uncompressing Linux.......................................................................... done, booting the kernel.

... //省略

VFS: Mounted root (nfs filesystem).

Mounted devfs on /dev

Freeing init memory: 92K

#mount all.......

****************************************************************************************************************

SF 2410 Rootfs made by wsf, 2011.06

****************************************************************************************************************

wsflogin: root

[[email protected] /root]# less test.c //查看文件内容

#include

int main (int argc,char* argv[])

{

int i;

printf("===== main =====\n");

printf ("Hello world!\n");

for(i=0;i

{

printf("argv[%d]=%s\n",i,argv[i]);

}

printf("==== exit main ====\n");

return 0;

}

[[email protected] /root]#gcc helloword

[[email protected] /root]#./a.out

如果出现如下情况

...

Irq: clearing subpending status 00000092

PID hash table entries: 512 (order: 9, 8192 bytes)

timer tcon=00500000, tcnt a509, tcfg 00000200,00000000, usec 00001e4c

Console: colour dummy device 80x30

解决办法：

[[email protected] /]# service nfs restart

关闭 NFS mountd： [确定]

关闭 NFS 守护进程： [确定]

关闭 NFS quotas： [确定]

关闭 NFS 服务： [确定]

启动 NFS 服务： [确定]

关掉 NFS 配额： [确定]

启动 NFS 守护进程： [确定]

启动 NFS mountd： [确定]

[[email protected] /]# iptables -F

[[email protected] /]# service xinetd restart

停止 xinetd： [确定]

启动 xinetd： [确定]

或者是当启动到

In: serial

Out: serial

Err: serial

Hit any key to stop autoboot: 0 回车

OK2410 # 在此输入”run bootcmd“

http://blog.chinaunix.net/space.php?uid=14735472&do=blog&id=110947

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