mini2440 256M nand版本使用uboot

(切记：对nand flash安装uboot和系统时，要先对nand flash格式话，否则极有可能因为上一次烧写遗留下来的碎片，使得这次启动系统失败！！！！！）

1.介绍

本文中用到的uboot并非自己移植，来自Tekkaman，博客地址：http://blog.chinaunix.net/uid-20543672-id-94379.html，这个u-boot最初是从友善之臂论坛看到的，帖子地址http://www.arm9home.net/read.php?tid-3539.html。

该U-boot的特性如下：

同时支持S3C2410和S3C2440 （2410没板测试）
支持串口 xmodem协议 （参考www.100ask.net）
支持网卡芯片 DM9000
支持不同NAND Flash的读写,并自动识别所使用的nand flash是512B/page还是2KB/page，实现在64MB\128MB\256MB\1GB NAND flash的启动。
支持IIC接口EEPROM的操作,并可保存ENV（参考hiboy的http://www.armchina.cn/article.asp?id=70）
自动识别S3C2440的启动方式是Nor boot还是Nand boot，调用不同的自拷贝程序，实现不论是Nor boot还是Nand boot，都可以烧写同一个bin文件。(nor flash为SST39VF1601)
支持烧写yaffs/yaffs2文件系统映象.
添加支持读取SD卡中的FAT32文件系统，现在U-boot已经支持从U盘或SD卡上启动。
添加支持OpenOCD导入内存启动，其实就是在一切flash识别之前，检测自己是否在内存，如果已在内存就跳过自拷贝程序。
支持NEC 3.5寸LCD输出console信息和BMP图片、logo。（参考openmoko）
支持使用DNW工具，通过USB device口进行文件传输。（参考了 hugerat.cublog.cn 和 Apollo5520.cublog.cn 两个高手的移植）

2.获取移植好的源码

Tekkaman将u-boot for mini2440命名为了u-boot-2010.03-tekkaman，其github主页为https://github.com/tekkamanninja/u-boot-2010.03-tekkaman

我们可以采用以下两种方式获取到该源码；

1.执行git clone git://github.com/tekkamanninja/u-boot-2010.03-tekkaman.git

2.点击github主页的ZIP图标，将其源码打包为zip压缩包下载到本地。如下图所示



两种方式均可，根据个人情况选择，如果Linux下能联网的话，建议使用第一种方式。

3.编译u-boot.bin

作者在其http://blog.chinaunix.net/uid-20543672-id-94379.html中已经提供了编译好的u-boot.bin下载；不想自己编译的，可坐享其成。

NOTE：下载后得到的文件名为100418215118.bz2，务必改名为u-boot.bin.tar.bz2之后，再进行解压，原因？了解下tar包和bz2压缩格式的关系吧。

下面介绍如何自己编译，来得到一个u-boot.bin。请确认交叉编译器arm-linux-gcc已经正确安装，本文编译u-boot使用的是开发板光盘提供的4.4.3版本。

$ git clone git://github.com/tekkamanninja/u-boot-2010.03-tekkaman.git
$ cd u-boot-2010.03-tekkaman
$ make ARCH=arm CROSS_COMPILE=arm-linux- mini2440_config（如果出现mkconfig:Permission denied,将其权限修改成777即可)
$ make ARCH=arm CROSS_COMPILE=arm-linux- all
注意，arm-linux-和mini2440_config以及arm-linux-和all之间各有一个空格。执行完这两条命令，当前目录下就会产生一个名为u-boot.bin个文件。这就是我们要烧写到开发板上的二进制文件了。如下图所示：



...

4.烧写到开发板

mini2440开发板默认已经带有supervivi，我们可以借助supervivi里的[a] Absolute User Application选项，通过DNW下载到NAND Flash中。

5.测试

烧写完成之后，开发板断电，切换到Nand启动，开发板上电，正常的话，开发板蜂鸣器会有大约1秒的声响，串口终端会有信息打印出来，如果此时无任何操作，uboot会根据事前做好的配置引导内核，启动开发板。

Tekkaman已经将uboot的默认启动方式改为了网络启动，因此此时是无法引导内核的。启动过程如下所示：



开发板此时会停留在Loading这里，每个一段时间打印一个T，每隔一段时间尝试连接一次服务器。经过30次尝试之后，会重启网络服务，再次尝试连接。如下图所示：



如果想进入U-boot的命令界面，怎麽办呢？系统上电，做完必要的初始化工作之后，会有1秒的时间给用户来选择是否进入U-boot的命令界面。如下图所示：



当U-boot执行这里的时候，按键盘的任意键，可使U-boot进入命令模式，而不会去引导内核。这个时间只有1秒，很短，因此如有必要，可在开发板刚上电的时候就开始按键。U-boot进入命令行之后如下所示：



输入help，可以查看U-boot支持的命令以及各自的作用，自测去吧。关于U-boot的使用方法，本文不过多涉及，请自己查阅资料。

6.设置Uboot，使Uboot能引导nand flash里的Kernel

在mini2440中，由于u-boot.bin文件大小已经大于了0x40000，所以作者修改了ENV的 OFFSET。现在的Nand分区是这样的：

uboot地址范围是0x0-0x60000，共384KB

uboot参数区地址范围是0x60000-0x80000，共128KB

kernel地址范围是0x80000-0x580000，共5MB

在include/configs/mini2440.h中有nand分区的定义：



而在Supervivi中bootloader是0x0-0x40000，params是0x40000-0x60000，kernel是0x60000-0x500000；
如果u-boot是用supervivi的k选项将linux kernel传到nand flash的。那么，Kernel的地址就会和u-boot中的params冲突，导致U-boot无法引导内核。
解决办法:
修改linux kernel中对Nand的分区定义，使其与u-boot保持一致。kernel的nand分区信息在arch/arm/mach-s3c2440/mach-mini2440.c中的名为friendly_arm_default_nand_part的结构体数组里。
如下图所示，为默认情况下，kernel中对Nand分区的定义：



根据U-boot的nand分区配置，我们需要将其修改为如下所示：



回到Kernel根目录，执行make zImage命令，会重新生成/arch/arm/boot/zImage。现在又有一个问题：uboot目前只能支持uImage启动，不支持zImage启动，因此我们需要使用mkimage工具把zImage转换为uImage；我们可以通过两种方式获取到mkimage工具：

uboot源码根目录下的tools目录下
执行以下命令安装

# apt-get install uboot-mkimage

uImage是在zImage之前加上一个长度为0x40字节（64字节）的头部，来说明zImage这个映像文件的映象名、映像类型、加载地址、入口地址、生成时间、大小等信息。换句话说，如果直接从uImage的0x40位置开始执行，zImage和uImage没有任何区别。U-boot引导内核是通过bootm完成的，bootm加载uImage的时候，会先对uImage进行解压（去掉0x40字节的头部），解压地址为内核入口地址（由mkimage的-e选项指定）。当解压完成时的uImage跟原zImage是完全相同的。

转换zImage为uImage的命令如下所示：

mkimage -n "linux-2.6.32.2" -A
arm -O Linux -T kernel -C none -a
0x30008000 -e 0x30008040 -d zImage uImage

执行mkimage --help可以查看mkimage的帮助信息；

其中，

-A用于指定平台架构，我们的是arm平台
-O用于指定操作系统，我们的是Linux操作系统
-T用于指定映像类型，映像是内核镜像，指定为Kernel
-C用于指定压缩类型，此处我们不压缩，设为none
-a用于指定夹在地址，0x30008000
-e用于指定入口地址，uImage去除0x40字节的头部信息之后，即为zImage，这便是kernel的入口地址，指定为0x30008040
-d用于指定data文件，从内容上看，zImage不含格式信息，就是一个普通的数据文件，因此此处指的就是zImage
uImage即为输出文件名。

接下来我们通过生成的uImage文件与zImage做一下对比：

$ file uImage zImage

uImage: u-boot/PPCBoot image

zImage: data

备注：从格式上来看，uImage为u-boot启动映像文件；zImage为普通的数据文件；

$ ls -l uImage zImage

-rw-r--r-- 1 gyl gyl 2266644 2013-05-12 17:45 uImage

-rwxr-xr-x 1 gyl gyl 2266580 2013-05-12 17:45 zImage

备注：文件大小正好差64字节；

$ mkimage -l uImage
Image Name: linux-2.6.32.2
Created: Sun May 12 17:45:54 2013
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2266580 Bytes = 2213.46 kB = 2.16 MB
Load Address: 0x30008000
Entry Point: 0x30008040

备注：查看uImage的头部信息；

u-boot能引导的内核已经制作好了，接下来我们测试一下能否正常工作；
首先，从nandflash重启开发板，进入u-boot命令界面，依次执行以下几条命令：

执行usbslave 1 0x30008000 #通过usb线将uImage下载至内存0x30008000中(在主机上执行dnw...)

执行nand erase 0x80000 0x500000 #擦除此区域，nand使用之前需要先擦除，以便接下来将linux kernel保存到这个地址处。

执行nand write 0x30008000 0x80000 0x500000 #从内存的0x30008000地址处开始拷贝0x500000字节的内容到nandflash的0x80000地址处。

修改u-boot引导参数

setenv bootcmd 'nand read 0x30008000 0x80000 0x500000;bootm 0x30008000'
setenv bootargs 'noinitrd root=/dev/mtdblock3 initrd=/linuxrc console=ttySAC0'
saveenv

重启开发板

从nand启动u-boot然后引导内核启动，并且挂载根文件系统的全过程如下所示：

##########备注：u-boot启动开始#####################################

U-Boot 2010.03 ( 5月 11 2013 - 20:35:29)

modified by tekkamanninja (tekkamanninja@163.com)

Love Linux forever!!

I2C:   ready

DRAM:  64 MB

Flash:  2 MB

NAND:  256 MiB

Video: 240x320x16 20kHz 62Hz

In:    serial

Out:   serial

Err:   serial

USB slave is enable!

Net:   dm9000

U-Boot 2010.03 ( 5月 11 2013 - 20:35:29)

modified by tekkamanninja

(tekkamanninja@163.com)

Love Linux forever!!

Hit any key to stop autoboot:  0

##########备注：u-boot启动完成#####################################

##########备注：开始引导kernel#####################################

NAND read: device 0 offset 0x80000, size 0x500000

5242880 bytes read: OK

## Booting kernel from Legacy Image at 30008000 ...

Image Name:   linux-2.6.32.2

Created:      2013-05-12   9:45:54 UTC

Image Type:   ARM Linux Kernel Image (uncompressed)

Data Size:    2266580 Bytes =  2.2 MB

Load Address: 30008000

Entry Point:  30008040

Verifying Checksum ... OK

XIP Kernel Image ... OK

OK

Starting kernel ...

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

Linux version 2.6.32.2-FriendlyARM (gyl@gyl) (gcc version 4.4.3 (ctng-1.6.1) ) #2 Sun May 12 17:27:38 CST 2013

CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177

CPU: VIVT data cache, VIVT instruction cache

Machine: FriendlyARM Mini2440 development board

Memory policy: ECC disabled, Data cache writeback

CPU S3C2440A (id 0x32440001)

S3C24XX Clocks, (c) 2004 Simtec Electronics

S3C244X: core 405.000 MHz, memory 101.250 MHz, peripheral 50.625 MHz

CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on

Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256

Kernel command line: noinitrd root=/dev/mtdblock3 initrd=/linuxrc console=ttySAC0

PID hash table entries: 256 (order: -2, 1024 bytes)

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory: 64MB = 64MB total

Memory: 60084KB available (4176K code, 451K data, 156K init, 0K highmem)

SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1

Hierarchical RCU implementation.

NR_IRQS:85

irq: clearing pending status 02000000

irq: clearing subpending status 00000002

Console: colour dummy device 80x30

console [ttySAC0] enabled

Calibrating delay loop... 201.93 BogoMIPS (lpj=504832)

Mount-cache hash table entries: 512

CPU: Testing write buffer coherency: ok

NET: Registered protocol family 16

S3C2440: Initialising architecture

S3C2440: IRQ Support

S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics

DMA channel 0 at c4808000, irq 33

DMA channel 1 at c4808040, irq 34

DMA channel 2 at c4808080, irq 35

DMA channel 3 at c48080c0, irq 36

S3C244X: Clock Support, DVS off

bio: create slab <bio-0> at 0

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

s3c-i2c s3c2440-i2c: slave address 0x10

s3c-i2c s3c2440-i2c: bus frequency set to 98 KHz

s3c-i2c s3c2440-i2c: i2c-0: S3C I2C adapter

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

NetWinder Floating Point Emulator V0.97 (double precision)

yaffs May  5 2013 12:12:47 Installing.

msgmni has been set to 117

alg: No test for stdrng (krng)

io scheduler noop registered (default)

Console: switching to colour frame buffer device 40x15

fb0: s3c2410fb frame buffer device

backlight       initialized

leds    initialized

buttons initialized

pwm     initialized

adc     initialized

s3c2440-uart.0: s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440

s3c2440-uart.1: s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440

s3c2440-uart.2: s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440

loop: module loaded

S3C24XX NAND Driver, (c) 2004 Simtec Electronics

s3c24xx-nand s3c2440-nand: Tacls=3, 29ns Twrph0=7 69ns, Twrph1=3 29ns

s3c24xx-nand s3c2440-nand: NAND soft ECC

NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)

Scanning device for bad blocks

Bad eraseblock 722 at 0x000005a40000

Bad eraseblock 1222 at 0x0000098c0000

Creating 5 MTD partitions on "NAND 256MiB 3,3V 8-bit":

0x000000000000-0x000000060000 : "uboot"

0x000000060000-0x000000080000 : "param"

0x000000080000-0x000000580000 : "Kernel"

0x000000580000-0x000040580000 : "root"

mtd: partition "root" extends beyond the end of device "NAND 256MiB 3,3V 8-bit" -- size truncated to 0xfa80000

0x000000000000-0x000040000000 : "nand"

mtd: partition "nand" extends beyond the end of device "NAND 256MiB 3,3V 8-bit" -- size truncated to 0x10000000

dm9000 Ethernet Driver, V1.31

eth0: dm9000e at c4814300,c4818304 IRQ 51 MAC: 08:90:90:90:90:90 (chip)

ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

s3c2410-ohci s3c2410-ohci: S3C24XX OHCI

s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1

s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000

usb usb1: New USB device found, idVendor=1d6b, idProduct=0001

usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

usb usb1: Product: S3C24XX OHCI

usb usb1: Manufacturer: Linux 2.6.32.2-FriendlyARM ohci_hcd

usb usb1: SerialNumber: s3c24xx

usb usb1: configuration #1 chosen from 1 choice

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 2 ports detected

Initializing USB Mass Storage driver...

usbcore: registered new interface driver usb-storage

USB Mass Storage support registered.

usbcore: registered new interface driver ums-alauda

usbcore: registered new interface driver ums-cypress

usbcore: registered new interface driver ums-datafab

usbcore: registered new interface driver ums-freecom

usbcore: registered new interface driver ums-isd200

usbcore: registered new interface driver ums-jumpshot

usbcore: registered new interface driver ums-karma

usbcore: registered new interface driver ums-onetouch

usbcore: registered new interface driver ums-sddr09

usbcore: registered new interface driver ums-sddr55

usbcore: registered new interface driver ums-usbat

usbcore: registered new interface driver usbserial

USB Serial support registered for generic

usbcore: registered new interface driver usbserial_generic

usbserial: USB Serial Driver core

USB Serial support registered for aircable

usbcore: registered new interface driver aircable

USB Serial support registered for ark3116

usbcore: registered new interface driver ark3116

USB Serial support registered for Belkin / Peracom / GoHubs USB Serial Adapter

usbcore: registered new interface driver belkin

belkin_sa: v1.2:USB Belkin Serial converter driver

USB Serial support registered for ch341-uart

usbcore: registered new interface driver ch341

USB Serial support registered for cp210x

usbcore: registered new interface driver cp210x

cp210x: v0.09:Silicon Labs CP210x RS232 serial adaptor driver

USB Serial support registered for Reiner SCT Cyberjack USB card reader

usbcore: registered new interface driver cyberjack

cyberjack: v1.01 Matthias Bruestle

cyberjack: REINER SCT cyberJack pinpad/e-com USB Chipcard Reader Driver

USB Serial support registered for DeLorme Earthmate USB

USB Serial support registered for HID->COM RS232 Adapter

USB Serial support registered for Nokia CA-42 V2 Adapter

usbcore: registered new interface driver cypress

cypress_m8: v1.09:Cypress USB to Serial Driver

USB Serial support registered for Digi 2 port USB adapter

USB Serial support registered for Digi 4 port USB adapter

usbcore: registered new interface driver digi_acceleport

digi_acceleport: v1.80.1.2:Digi AccelePort USB-2/USB-4 Serial Converter driver

USB Serial support registered for Edgeport 2 port adapter

USB Serial support registered for Edgeport 4 port adapter

USB Serial support registered for Edgeport 8 port adapter

USB Serial support registered for EPiC device

usbcore: registered new interface driver io_edgeport

io_edgeport: v2.7:Edgeport USB Serial Driver

USB Serial support registered for Edgeport TI 1 port adapter

USB Serial support registered for Edgeport TI 2 port adapter

usbcore: registered new interface driver io_ti

io_ti: v0.7mode043006:Edgeport USB Serial Driver

USB Serial support registered for empeg

usbcore: registered new interface driver empeg

empeg: v1.2:USB Empeg Mark I/II Driver

USB Serial support registered for FTDI USB Serial Device

usbcore: registered new interface driver ftdi_sio

ftdi_sio: v1.5.0:USB FTDI Serial Converters Driver

USB Serial support registered for funsoft

usbcore: registered new interface driver funsoft

USB Serial support registered for Garmin GPS usb/tty

usbcore: registered new interface driver garmin_gps

garmin_gps: v0.33:garmin gps driver

USB Serial support registered for hp4X

usbcore: registered new interface driver hp4X

hp4x: v1.00:HP4x (48/49) Generic Serial driver

USB Serial support registered for PocketPC PDA

usbcore: registered new interface driver ipaq

ipaq: v0.5:USB PocketPC PDA driver

USB Serial support registered for IPWireless converter

usbcore: registered new interface driver ipwtty

ipw: v0.3:IPWireless tty driver

USB Serial support registered for IR Dongle

usbcore: registered new interface driver ir-usb

ir_usb: v0.4:USB IR Dongle driver

USB Serial support registered for iuu_phoenix

usbcore: registered new interface driver iuu_phoenix

iuu_phoenix: v0.11:Infinity USB Unlimited Phoenix driver

USB Serial support registered for Keyspan - (without firmware)

usb 1-1: new low speed USB device using s3c2410-ohci and address 2

USB Serial support registered for Keyspan 1 port adapter

USB Serial support registered for Keyspan 2 port adapter

USB Serial support registered for Keyspan 4 port adapter

usbcore: registered new interface driver keyspan

keyspan: v1.1.5:Keyspan USB to Serial Converter Driver

USB Serial support registered for Keyspan PDA

USB Serial support registered for Keyspan PDA - (prerenumeration)

USB Serial support registered for Xircom / Entregra PGS - (prerenumeration)

usbcore: registered new interface driver keyspan_pda

keyspan_pda: v1.1:USB Keyspan PDA Converter driver

USB Serial support registered for KL5KUSB105D / PalmConnect

usbcore: registered new interface driver kl5kusb105d

kl5kusb105: v0.3a:KLSI KL5KUSB105 chipset USB->Serial Converter driver

USB Serial support registered for KOBIL USB smart card terminal

usbcore: registered new interface driver kobil

kobil_sct: 21/05/2004:KOBIL USB Smart Card Terminal Driver (experimental)

USB Serial support registered for MCT U232

usbcore: registered new interface driver mct_u232

mct_u232: z2.1:Magic Control Technology USB-RS232 converter driver

USB Serial support registered for Moschip 2 port adapter

mos7720: 1.0.0.4F:Moschip USB Serial Driver

usbcore: registered new interface driver moschip7720

USB Serial support registered for Moschip 7840/7820 USB Serial Driver

mos7840: 1.3.2:Moschip 7840/7820 USB Serial Driver

usbcore: registered new interface driver mos7840

USB Serial support registered for moto-modem

usbcore: registered new interface driver moto-modem

USB Serial support registered for navman

usbcore: registered new interface driver navman

USB Serial support registered for ZyXEL - omni.net lcd plus usb

usbcore: registered new interface driver omninet

omninet: v1.1:USB ZyXEL omni.net LCD PLUS Driver

USB Serial support registered for opticon

usbcore: registered new interface driver opticon

USB Serial support registered for GSM modem (1-port)

usbcore: registered new interface driver option

option: v0.7.2:USB Driver for GSM modems

USB Serial support registered for oti6858

usb 1-1: New USB device found, idVendor=1bcf, idProduct=0002

usb 1-1: New USB device strings: Mfr=0, Product=2, SerialNumber=0

usb 1-1: Product: USB Optical Wheel Mouse

usb 1-1: configuration #1 chosen from 1 choice

usbcore: registered new interface driver oti6858

USB Serial support registered for pl2303

usbcore: registered new interface driver pl2303

pl2303: Prolific PL2303 USB to serial adaptor driver

USB Serial support registered for Qualcomm USB modem

usbcore: registered new interface driver qcserial

safe_serial: v0.0b:USB Safe Encapsulated Serial

USB Serial support registered for safe_serial

usbcore: registered new interface driver safe_serial

USB Serial support registered for siemens_mpi

usbcore: registered new interface driver siemens_mpi

Driver for Siemens USB/MPI adapter

Version 0.1 09/26/2005 Thomas Hergenhahn@web.de http://libnodave.sf.net 
USB Serial support registered for Sierra USB modem

usbcore: registered new interface driver sierra

sierra: v.1.3.8:USB Driver for Sierra Wireless USB modems

USB Serial support registered for SPCP8x5

usbcore: registered new interface driver spcp8x5

spcp8x5: v0.04:SPCP8x5 USB to serial adaptor driver

USB Serial support registered for symbol

usbcore: registered new interface driver symbol

USB Serial support registered for TI USB 3410 1 port adapter

USB Serial support registered for TI USB 5052 2 port adapter

usbcore: registered new interface driver ti_usb_3410_5052

ti_usb_3410_5052: v0.9:TI USB 3410/5052 Serial Driver

USB Serial support registered for Handspring Visor / Palm OS

USB Serial support registered for Sony Clie 3.5

USB Serial support registered for Sony Clie 5.0

usbcore: registered new interface driver visor

visor: USB HandSpring Visor / Palm OS driver

USB Serial support registered for Connect Tech - WhiteHEAT - (prerenumeration)

USB Serial support registered for Connect Tech - WhiteHEAT

usbcore: registered new interface driver whiteheat

whiteheat: v2.0:USB ConnectTech WhiteHEAT driver

mice: PS/2 mouse device common for all mice

s3c2410 TouchScreen successfully loaded

input: s3c2410 TouchScreen as /devices/virtual/input/input0

S3C24XX RTC, (c) 2004,2006 Simtec Electronics

s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling

s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0

i2c /dev entries driver

Linux video capture interface: v2.00

gspca: main v2.7.0 registered

usbcore: registered new interface driver conex

conex: registered

usbcore: registered new interface driver etoms

etoms: registered

usbcore: registered new interface driver finepix

finepix: registered

usbcore: registered new interface driver jeilinj

jeilinj: registered

usbcore: registered new interface driver mars

mars: registered

usbcore: registered new interface driver mr97310a

mr97310a: registered

usbcore: registered new interface driver ov519

ov519: registered

usbcore: registered new interface driver ov534

ov534: registered

usbcore: registered new interface driver pac207

pac207: registered

usbcore: registered new interface driver pac7311

pac7311: registered

usbcore: registered new interface driver sn9c20x

sn9c20x: registered

usbcore: registered new interface driver sonixb

sonixb: registered

usbcore: registered new interface driver sonixj

sonixj: registered

usbcore: registered new interface driver spca500

spca500: registered

usbcore: registered new interface driver spca501

spca501: registered

usbcore: registered new interface driver spca505

spca505: registered

usbcore: registered new interface driver spca506

spca506: registered

usbcore: registered new interface driver spca508

spca508: registered

usbcore: registered new interface driver spca561

spca561: registered

usbcore: registered new interface driver sq905

sq905: registered

usbcore: registered new interface driver sq905c

sq905c: registered

usbcore: registered new interface driver sunplus

sunplus: registered

usbcore: registered new interface driver stk014

stk014: registered

usbcore: registered new interface driver t613

t613: registered

usbcore: registered new interface driver tv8532

tv8532: registered

usbcore: registered new interface driver vc032x

vc032x: registered

usbcore: registered new interface driver zc3xx

zc3xx: registered

usbcore: registered new interface driver ALi m5602

ALi m5602: registered

usbcore: registered new interface driver STV06xx

STV06xx: registered

gspca_gl860: driver startup - version 0.9d10

usbcore: registered new interface driver gspca_gl860

gspca_gl860: driver registered

usbcore: registered new interface driver uvcvideo

USB Video Class driver (v0.1.0)

initializing s3c2440 camera interface......

s3c2440 camif init done

Loading OV9650 driver.........

SCCB address 0x60, manufacture ID 0xFFFF, expect 0x7FA2

SCCB address 0x60, manufacture ID 0xFFFF, expect 0x7FA2

No OV9650 found!!!

S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics

s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled

s3c-sdi s3c2440-sdi: powered down.

s3c-sdi s3c2440-sdi: mmc0 - using pio, sw SDIO IRQ

input: USB Optical Wheel Mouse as /devices/platform/s3c2410-ohci/usb1/1-1/1-1:1.0/input/input1

generic-usb 0003:1BCF:0002.0001: input: USB HID v1.11 Mouse [USB Optical Wheel Mouse] on usb-s3c24xx-1/input0

usbcore: registered new interface driver usbhid

usbhid: v2.6:USB HID core driver

Advanced Linux Sound Architecture Driver Version 1.0.21.

No device for DAI UDA134X

No device for DAI s3c24xx-i2s

S3C24XX_UDA134X SoC Audio driver

UDA134X SoC Audio Codec

asoc: UDA134X <-> s3c24xx-i2s mapping ok

ALSA device list:

#0: S3C24XX_UDA134X (UDA134X)

TCP cubic registered

NET: Registered protocol family 17

s3c2410-rtc s3c2410-rtc: setting system clock to 2006-11-26 22:36:47 UTC (1164580607)

##########备注：内核启动完成#####################################

##########备注：开始挂载根文件系统#####################################

yaffs: dev is 32505859 name is "mtdblock3"

yaffs: passed flags ""

yaffs: Attempting MTD mount on 31.3, "mtdblock3"

yaffs: auto selecting yaffs2

yaffs_read_super: isCheckpointed 0

VFS: Mounted root (yaffs filesystem) on device 31:3.

##########备注：挂载根文件系统完成#####################################

##########备注：执行一些脚本，启动一些服务之类的#####################################

Freeing init memory: 156K

[26/Nov/2006:14:36:55 +0000] boa: server version Boa/0.94.13

[26/Nov/2006:14:36:55 +0000] boa: server built Jul 26 2010 at 15:58:29.

[26/Nov/2006:14:36:55 +0000] boa: starting server pid=685, port 80

Try to bring eth0 interface up......eth0: link down

Done

Please press Enter to activate this console.

[root@FriendlyARM /]# ls

bin         home        lost+found  proc        sys         var

dev         lib         mnt         root        tmp         www

etc         linuxrc     opt         sbin        usr

[root@FriendlyARM /]#

7.参考资料

http://www.arm9home.net/read.php?tid-3539.html的36楼

http://blog.chinaunix.net/uid-25445243-id-142542.html

http://hi.baidu.com/irobot2010/item/814a8259f4ea3e18db1635fd