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ARM9:如何将linux2.6.38内核移植到TQ2440

时间:10-02 整理:3721RD 点击:

天嵌科技感谢ANDY的支持,本文是作者通过一个星期不停修改错误,看代码,每天都忙到2点才休息的劳动成果!终于将linux2.6.38内核成功移植到TQ2440嵌入式开发板上。

  下面是linux2.6.38内核移植到TQ2440的具体步骤:

  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/zImage zImage.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make distclean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 struct mtd_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

  #include

  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git clone 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 m opt/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make install。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 CST 2011

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

  CPU: VIVT data cache, VIVT instruction cache

  Machine: Andy's TQ2440 development board!

  ATAG_INITRD is deprecated; please update your bootloader.

  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 50.000 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/mtdblock2 init=/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: 60896k/60896k available, 4640k reserved, 0K highmem

  Virtual kernel memory layout:

  vector : 0xffff0000 - 0xffff1000 ( 4 kB)

  fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)

  DMA : 0xffc00000 - 0xffe00000 ( 2 MB)

  vmalloc : 0xc4800000 - 0xf6000000 ( 792 MB)

  lowmem : 0xc0000000 - 0xc4000000 ( 64 MB)

  modules : 0xbf000000 - 0xc0000000 ( 16 MB)

  .init : 0xc0008000 - 0xc0025000 ( 116 kB)

  .text : 0xc0025000 - 0xc0399000 (3536 kB)

  .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 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, 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

  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 a S3C2440

  s3c2440-uart.1: ttySAC1 at MMIO 0x50004000 (irq = 73) is a S3C2440

  s3c2440-uart.2: ttySAC2 at MMIO 0x50008000 (irq = 76) is a S3C2440

  loop: module loaded

  S3C24XX NAND Driver, (c) 2004 Simtec Electronics

  s3c24xx-nand s3c2440-nand: Tacls=2, 20ns Twrph0=6 60ns, Twrph1=2 20ns

  s3c24xx-nand s3c2440-nand: NAND ECC disabled

  NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 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 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 2.6.38-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, irq enabled

  usbcore: registered new interface driver usbhid

  usbhid: USB HID core driver

  ALSA device list:

  No soundcards found.

  TCP cubic registered

  lib80211: common routines for IEEE802.11 drivers

  s3c-rtc s3c2410-rtc: setting system clock to 2000-01-02 00:47:19 UTC (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!


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