经过一个星期的不停修改错误，看代码，每天都忙到2点才睡，今天终于解决了所有问题，成功移植linux2.6.38内核到TQ2440。
移植步骤：
1.修改根目录的Makefile中的ARCH=arm，CROSS-COMPILE=arm-linux-
2.在arch/arm/mach-s3c2440/mach-smdk2440.c中，将163行的s3c24xx_init_clocks(16934400)改为s3c24xx_init_clocks(12000000)。
3.修改arch/arm/tools/mach-types中379行的362改为168，因为uboot中定义的机器码是168.
4.修改arch/arm/boot/中的Makefile文件，在58行添加@cp -f arch/arm/boot/zImagezImage.bin，实现把生成的zImage文件复制到内核源码根目录下。
5.在根目录的Makefile的1164行添加rm -f zImage.bin，使得在执行makedistclean在清除产生的文件的同时，把内核根目录下的zImage也清除。
6.修改arch/arm/plat-s3c24xx/common-smdk.c中111行的static structmtd_partition smdk_default_nand_part[]的nandflash分区为：
[0] = {
.name ="Andy_uboot",
.offset =0x00000000,
.size =0x00040000,
},
[1] = {
.name ="Andy_kernel",
.offset =0x00200000,
.size =0x00200000,
},
[2] = {
.name ="Andy_yaffs2",
.offset =0x00400000,
.size =0x0FB80000,
}
7.修改drivers/mtd/nand/s3c2410.c中的839行为chip->ecc.mode=NAND_ECC_NONE;
8.修改arch/arm/mach-s3c2440/mach-smdk2440.c中100行为.ulcon = 0x03。
9.在drivers/serial/samsung.c的51行添加
#include<mach/regs-gpio.h>
#include<linux/gpio.h>
在433行添加：
if (port->line == 2){
s3c2410_gpio_cfgpin(S3C2410_GPH(6),S3C2410_GPH6_TXD2);
s3c2410_gpio_pullup(S3C2410_GPH(6),1);
s3c2410_gpio_cfgpin(S3C2410_GPH(7),S3C2410_GPH7_RXD2);
s3c2410_gpio_pullup(S3C2410_GPH(7),1);
}
10.用git工具下载最新的yaffs2源代码。
具体为在终端输入gitclone git://www.aleph1.co.uk/yaffs2下载最新的yaffs2，下
载完成给内核打补丁，进入yaffs目录，执行
./patch-kernel.sh c mopt/Andy/linux-2.6.38（以自己的内核目录为准）,其中的c代表复制，m代表复合类型。
11.用make menuconfig配置linux内核。
12.执行make zImage，将生成的zImage.bin下载到TQ2440。
13.制作文件系统。
解压busybox-1.18.4.tar.bz2，修改busybox-1.18.4中的Makefile，在164行和190行分别修改为CROSS-COMPILE=arm-linux-和ARCH=arm。执行make，然后在执行makeinstall。将生成_install复制到根目录，添加文件系统文件，用天嵌提供的mkyaffs2image生成root.bin的可执行文件，下载到开发板。
14.启动开发板，打印信息如下：
Start Linux ...
Copy linux kernel from 0x00200000 to 0x30008000, size = 0x00200000... Copy Kernel to SDRAM done,NOW, Booting Linux......
Uncompressing Linux... done, booting the kernel.
Linux version 2.6.38-Andy (root@Andy) (gcc version 4.3.3(Sourcery G++ Lite 2009q1-176) ) #15 Fri Apr 8 20:21:42 CST2011
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
CPU: VIVT data cache, VIVT instruction cache
Machine: Andy's TQ2440 developmentboard!
ATAG_INITRD is deprecated; please update yourbootloader.
Memory policy: ECC disabled, Data cache writeback
CPU S3C2440A (id 0x32440001)
S3C24XX Clocks, Copyright 2004 Simtec Electronics
S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000MHz
CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
Built 1 zonelists in Zone order, mobility groupingon. Total pages:16256
Kernel command line: noinitrd root=/dev/mtdblock2 init=/linuxrcconsole=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: 60896k/60896k available, 4640k reserved, 0K highmem
Virtual kernel memory layout:
vector :0xffff0000 -0xffff1000 ( 4kB)
fixmap :0xfff00000 -0xfffe0000 (896 kB)
DMA :0xffc00000 -0xffe00000 ( 2MB)
vmalloc: 0xc4800000 -0xf6000000 (792 MB)
lowmem :0xc0000000 -0xc4000000 ( 64MB)
modules: 0xbf000000 -0xc0000000 ( 16MB)
.init: 0xc0008000 -0xc0025000 (116 kB)
.text: 0xc0025000 -0xc0399000 (3536kB)
.data: 0xc039a000 -0xc03bac40 (132 kB)
SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1,Nodes=1
NR_IRQS:85
irq: clearing pending ext status 00080000
irq: clearing subpending status 00000003
irq: clearing subpending status 00000002
Console: colour dummy device 80x30
console [ttySAC0] enabled
Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
gpiochip_add: gpios 288..303 (GPIOK) failed to register
gpiochip_add: gpios 320..334 (GPIOL) failed to register
gpiochip_add: gpios 352..353 (GPIOM) failed to register
NET: Registered protocol family 16
S3C2440: Initialising architecture
S3C2440: IRQ Support
S3C24XX DMA Driver, Copyright 2003-2006 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 97 KHz
s3c-i2c s3c2440-i2c: i2c-0: S3C I2C adapter
Advanced Linux Sound Architecture Driver Version 1.0.23.
cfg80211: Calling CRDA to update world regulatory domain
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096bytes)
TCP established hash table entries: 2048 (order: 2, 16384bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
msgmni has been set to 118
io scheduler noop registered (default)
s3c2440-uart.0: ttySAC0 at MMIO 0x50000000 (irq = 70) is aS3C2440
s3c2440-uart.1: ttySAC1 at MMIO 0x50004000 (irq = 73) is aS3C2440
s3c2440-uart.2: ttySAC2 at MMIO 0x50008000 (irq = 76) is aS3C2440
loop: module loaded
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c24xx-nand s3c2440-nand: Tacls=2, 20ns Twrph0=6 60ns, Twrph1=220ns
s3c24xx-nand s3c2440-nand: NAND ECC disabled
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND256MiB 3,3V 8-bit)
NAND_ECC_NONE selected by board driver. This is not recommended!!
Scanning device for bad blocks
Bad eraseblock 62 at 0x0000007c0000
Bad eraseblock 1435 at 0x00000b360000
cmdlinepart partition parsing not available
Creating 3 MTD partitions on "NAND":
0x000000000000-0x000000040000 : "Andy_uboot"
0x000000200000-0x000000400000 : "Andy_kernel"
0x000000400000-0x00000ff80000 : "Andy_yaffs2"
dm9000 Ethernet Driver, V1.31
Now use the default MAC address: 10:23:45:67:89:ab
eth0: dm9000e at c4810000,c4814004 IRQ 51 MAC: 10:23:45:67:89:ab(EmbedSky)
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 busnumber 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 2.6.38-Andy ohci_hcd
usb usb1: SerialNumber: s3c24xx
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 usbserial
usbserial: USB Serial Driver core
USB Serial support registered for pl2303
usbcore: registered new interface driver pl2303
pl2303: Prolific PL2303 USB to serial adaptor driver
s3c2410_udc: debugfs dir creation failed -19
mousedev: PS/2 mouse device common for all mice
S3C24XX RTC, (c) 2004,2006 Simtec Electronics
s3c-rtc s3c2410-rtc: rtc disabled, re-enabling
s3c-rtc s3c2410-rtc: rtc core: registered s3c as rtc0
i2c /dev entries driver
S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irqenabled
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
ALSA device list:
No soundcardsfound.
TCP cubic registered
lib80211: common routines for IEEE802.11 drivers
s3c-rtc s3c2410-rtc: setting system clock to 2000-01-02 00:47:19UTC (946774039)
yaffs: dev is 32505858 name is "mtdblock2" rw
yaffs: passed flags ""
VFS: Mounted root (yaffs filesystem) on device 31:2.
Freeing init memory: 116K
Please press Enter to activate this console.
移植过程中产生的问题及其解决方法将在下一节说明。还有一些驱动没有移植。继续努力！
