系统移植（linux2.6.30.4->TQ2440）过程及其现象

1、make mrproper

2、vim Makefile修改ARCH ?= arm

CORSS_COMPILE ?= arm-linux-

3、vim arch/arm/mach-s3c2440/mach-smdk2440.c

文件的大概162 行或163 行，把16.9344MHz 改为12MHz。

4、vim arch/arm/tools/mach-types

修改机器码。修改到与u-boot中设置的一样。

5、make menuconfig

load an alternate configuration file加载./arch/arm/configs/s3c2410_defconfig

修改参考http://lamp.linux.gov.cn/Linux/kernel_options.html介绍

6、make zImage

移植到TQ2440后，Test zImage

屏幕（上黑下白）。SecureCRT显示如下：

Now, Downloading [ADDRESS:30008000,TOTAL:1944878]

RECEIVED FILE SIZE: 1944878 (949KB/S, 2S)

NOW, Booting Linux......

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

Linux version 2.6.30.4-tender (root@book) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-176) ) #1 Wed Nov 3 17:04:19 CST 2010

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

CPU: VIVT data cache, VIVT instruction cache

Machine: SMDK2440

ATAG_INITRD is deprecated; please update your bootloader.

Memory policy: ECC disabled, Data cache writeback

CPU S3C2440A (id 0x32440001)

S3C24XX Clocks, (c) 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

NR_IRQS:85

irq: clearing subpending status 00000003

irq: clearing subpending status 00000002

PID hash table entries: 256 (order: 8, 1024 bytes)

Console: colour dummy device 80x30

console [ttySAC0] enabled

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: 60840KB available (3444K code, 376K data, 112K init, 0K highmem)

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

Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)

Mount-cache hash table entries: 512

CPU: Testing write buffer coherency: ok

net_namespace: 936 bytes

NET: Registered protocol family 16

S3C Power Management, Copyright 2004 Simtec Electronics

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

s3c2440-i2c s3c2440-i2c: slave address 0x10

s3c2440-i2c s3c2440-i2c: bus frequency set to 97 KHz

s3c2440-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

NetWinder Floating Point Emulator V0.97 (extended precision)

JFFS2 version 2.2. (NAND) (SUMMARY) 漏 2001-2006 Red Hat, Inc.

ROMFS MTD (C) 2007 Red Hat, Inc.

msgmni has been set to 118

io scheduler noop registered (default)

Console: switching to colour frame buffer device 30x40

fb0: s3c2410fb frame buffer device

lp: driver loaded but no devices found

ppdev: user-space parallel port driver

Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled

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

brd: module loaded

loop: module loaded

Uniform Multi-Platform E-IDE driver

ide-gd driver 1.18

ide-cd driver 5.00

Driver 'sd' needs updating - please use bus_type methods

dm9000 Ethernet Driver, V1.31

S3C24XX NAND Driver, (c) 2004 Simtec Electronics

s3c2440-nand s3c2440-nand: Tacls=3, 30ns Twrph0=7 70ns, Twrph1=3 30ns

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

Scanning device for bad blocks

Bad eraseblock 232 at 0x000001d00000

Bad eraseblock 727 at 0x000005ae0000

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

0x000000000000-0x000000004000 : "Boot Agent"

mtd: partition "Boot Agent" doesn't end on an erase block -- force read-only

0x000000000000-0x000000200000 : "S3C2410 flash partition 1"

0x000000400000-0x000000800000 : "S3C2410 flash partition 2"

0x000000800000-0x000000a00000 : "S3C2410 flash partition 3"

0x000000a00000-0x000000e00000 : "S3C2410 flash partition 4"

0x000000e00000-0x000001800000 : "S3C2410 flash partition 5"

0x000001800000-0x000003000000 : "S3C2410 flash partition 6"

0x000003000000-0x000004000000 : "S3C2410 flash partition 7"

usbmon: debugfs is not available

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: configuration #1 chosen from 1 choice

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 2 ports detected

usbcore: registered new interface driver libusual

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 FTDI USB Serial Device

usbcore: registered new interface driver ftdi_sio

ftdi_sio: v1.4.3:USB FTDI Serial Converters Driver

USB Serial support registered for pl2303

usbcore: registered new interface driver pl2303

pl2303: Prolific PL2303 USB to serial adaptor driver

mice: PS/2 mouse device common for all mice

S3C24XX RTC, (c) 2004,2006 Simtec Electronics

S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics

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

Advanced Linux Sound Architecture Driver Version 1.0.20.

ALSA device list:

No soundcards found.

TCP cubic registered

NET: Registered protocol family 17

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

drivers/rtc/hctosys.c: unable to open rtc device (rtc0)

uncorrectable error : <3>uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 2

EXT2-fs: unable to read superblock

uncorrectable error : <3>uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 0

Buffer I/O error on device mtdblock2, logical block 0

uncorrectable error : <3>uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 0

Buffer I/O error on device mtdblock2, logical block 0

uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 8

Buffer I/O error on device mtdblock2, logical block 1

uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 8

Buffer I/O error on device mtdblock2, logical block 1

uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 24

Buffer I/O error on device mtdblock2, logical block 3

uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 24

Buffer I/O error on device mtdblock2, logical block 3

uncorrectable error : <3>uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 0

FAT: unable to read boot sector

VFS: Cannot open root device "mtdblock2" or unknown-block(31,2)

Please append a correct "root=" boot option; here are the available partitions:

1f00 16 mtdblock0 (driver?)

1f01 2048 mtdblock1 (driver?)

1f02 4096 mtdblock2 (driver?)

1f03 2048 mtdblock3 (driver?)

1f04 4096 mtdblock4 (driver?)

1f05 10240 mtdblock5 (driver?)

1f06 24576 mtdblock6 (driver?)

1f07 16384 mtdblock7 (driver?)

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)

[<c002aab4>] (unwind_backtrace+0x0/0xe8) from [<c02b92dc>] (panic+0x44/0x124)

[<c02b92dc>] (panic+0x44/0x124) from [<c0008fe0>] (mount_block_root+0x16c/0x224)

[<c0008fe0>] (mount_block_root+0x16c/0x224) from [<c0009284>] (prepare_namespace+0x100/0x1bc)

[<c0009284>] (prepare_namespace+0x100/0x1bc) from [<c00085ac>] (kernel_init+0xc0/0xec)

[<c00085ac>] (kernel_init+0xc0/0xec) from [<c0048d2c>] (do_exit+0x0/0x5fc)

[<c0048d2c>] (do_exit+0x0/0x5fc) from [<00000000>] (0x0)