由于uboot 没有配置好支持yaffs2 映象的烧写功能，所以启动出现如下错误
U-Boot 1.1.6 (Aug 18 2010 - 01:30:27)
DRAM: 64 MB
Flash: 0 kB
NAND: 256 MB
Console In: serial
Console Out: serial
Console Err: serial
MPLLVal = 400MHZ
UPLLVal = 48MHZ
+---------------------------------------------+
| Uboot 1.1.6 FOR S3C2440A WITH USB Downloader|
+---------------------------------------------+
Hit any key to stop autoboot: 0
Now Booting Linux ...
Loading from NAND 256MiB 3,3V 8-bit, offset 0x120000
Image Name: Linux-2.6.31
Created: 2010-08-15 21:36:34 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2242476 Bytes = 2.1 MB
Load Address: 30008000
Entry Point: 30008000
## Booting image at 30007fc0 ...
Image Name: Linux-2.6.31
Created: 2010-08-15 21:36:34 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2242476 Bytes = 2.1 MB
Load Address: 30008000
Entry Point: 30008000
Verifying Checksum ... OK
XIP Kernel Image ... OK
Starting kernel ...
Uncompressing Linux............................................................................................................................................ done, booting the kernel.
Linux version 2.6.31 (
root@localhost.localdomain) (gcc version 4.1.2) #14 Mon Aug 16 05:35:13 CST 2010
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
CPU: VIVT data cache, VIVT instruction cache
Machine: SMDK2440
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
PID hash table entries: 256 (order: 8, 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: 60304KB available (3892K code, 328K data, 204K init, 0K highmem)
NR_IRQS:85
irq: clearing pending ext status 00080800
irq: clearing subpending status 00000002
Console: colour dummy device 80x30
console [ttySAC0] enabled
Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
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
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
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) © 2001-2006 Red Hat, Inc.
ROMFS MTD (C) 2007 Red Hat, Inc.
yaffs Aug 16 2010 03:26:54 Installing.
msgmni has been set to 117
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
Console: switching to colour frame buffer device 40x30
fb0: s3c2410fb frame buffer device
adc initialized
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
dm9000 Ethernet Driver, V1.31
Now use the default MAC address: 08:90:90:90:90:90
eth0: dm9000e at c4872000,c4876004 IRQ 62 MAC: 08:90:90:90:90:90 (
www.txmcu.com)
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c24xx-nand s3c2440-nand: Tacls=1, 10ns Twrph0=3 30ns, Twrph1=1 10ns
s3c24xx-nand s3c2440-nand: NAND hardware ECC
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)
Scanning device for bad blocks
Creating 3 MTD partitions on "NAND 256MiB 3,3V 8-bit":
0x000000000000-0x000000100000 : "bios"
0x000000120000-0x000000520000 : "linux"
0x000000520000-0x000004000000 : "yaffs2"
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: v1.5.0: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
s3c2410 TouchScreen successfully loaded
input: s3c2410 TouchScreen as /class/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
Linux video capture interface: v2.00
gspca: main v2.6.0 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
Advanced Linux Sound Architecture Driver Version 1.0.20.
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
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
s3c2410-rtc s3c2410-rtc: hctosys: invalid date/time
end_request: I/O error, dev mtdblock2, sector 2
EXT3-fs: unable to read superblock
end_request: I/O error, dev mtdblock2, sector 0
Buffer I/O error on device mtdblock2, logical block 0
end_request: I/O error, dev mtdblock2, sector 0
Buffer I/O error on device mtdblock2, logical block 0
end_request: I/O error, dev mtdblock2, sector 8
Buffer I/O error on device mtdblock2, logical block 1
end_request: I/O error, dev mtdblock2, sector 8
Buffer I/O error on device mtdblock2, logical block 1
end_request: I/O error, dev mtdblock2, sector 16
Buffer I/O error on device mtdblock2, logical block 2
end_request: I/O error, dev mtdblock2, sector 16
Buffer I/O error on device mtdblock2, logical block 2
end_request: I/O error, dev mtdblock2, sector 24
Buffer I/O error on device mtdblock2, logical block 3
end_request: I/O error, dev mtdblock2, sector 24
Buffer I/O error on device mtdblock2, logical block 3
end_request: I/O error, dev mtdblock2, sector 0
usb 1-1: new full speed USB device using s3c2410-ohci and address 2
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 1024 mtdblock0 (driver?)
1f01 4096 mtdblock1 (driver?)
1f02 60288 mtdblock2 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
[<c00417f8>] (unwind_backtrace+0x0/0xd4) from [<c005aa2c>] (panic+0x40/0x124)
[<c005aa2c>] (panic+0x40/0x124) from [<c0009080>] (mount_block_root+0x1c4/0x20c)
[<c0009080>] (mount_block_root+0x1c4/0x20c) from [<c0009334>] (prepare_namespace+0x168/0x1cc)
[<c0009334>] (prepare_namespace+0x168/0x1cc) from [<c00088d4>] (kernel_init+0xc8/0xfc)
[<c00088d4>] (kernel_init+0xc8/0xfc) from [<c003cd6c>] (kernel_thread_exit+0x0/0x8)
内核和文件系统都是没有问题的，uboot除了不支持烧写yaffs2文件系统外，其它都没问题
因为换个好的UBOOT镜像来烧写启动就正常了。
请教大虾们怎么配置，才能正确烧写yaffs2文件系统？
