我现在有个问题,大家帮忙看一下，万分感谢! 内核启动时出现下面的信息：
boot 1.1 Modified by jackyard (Jan 1 2006 - 14:24:4
Uncompressing image...
U-Boot 1.1.4 (Dec 30 2005 - 00:54:4
U-Boot code: 21F00000 -> 21F176D4 BSS: -> 21F34004
RAM Configuration:
Bank #0: 20000000 32 MB
Flash: 8 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
## Booting image at 10060000 ...
Image Name: Linux-2.6.22-jackyard
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1202192 Bytes = 1.1 MB
Load Address: 20008000
Entry Point: 20008000
Verifying Checksum ... OK
OK
Starting kernel ...
Uncompressing Linux.............................................................................. done, booting the kernel.
Linux version 2.6.22-jackyard (root@localhost.localdomain) (gcc version 4.3.2 (Sourcery G++ Lite 2008q3-72) ) #7 Thu Dec 2 23:18:00 CST 2010
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
Machine: Atmel AT91RM9200-EK
Memory policy: ECC disabled, Data cache writeback
Clocks: CPU 179 MHz, master 59 MHz, main 18.432 MHz
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
Built 1 zonelists. Total pages: 8128
Kernel command line: mem=32M console=ttyS0,115200 root=1f02 mtdparts=phys_mapped_flash:384k(UBOOT),1920k(KERNEL),2816K(Cramfs),3072k(JFFS2)
AT91: 96 gpio irqs in 3 banks
PID hash table entries: 128 (order: 7, 512 bytes)
Console: colour dummy device 80x30
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 32MB = 32MB total
Memory: 29948KB available (2180K code, 207K data, 104K init)
Mount-acche hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
NetWinder Floating Point Emulator V0.97 (double precision)
JFFS2 version 2.2. (NAND) (SUMMARY) 漏 2001-2006 Red Hat, Inc.
io scheduler noop registered
io scheduler anticipatory registered (default)
Epson S1D13XXX FB Driver
s1d13xxxfb: chip not found: 0
at91_spi: Baud rate set to 5990400
AT91 SPI driver loaded
AT91 Watchdog Timer enabled (5 seconds, nowayout)
atmel_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a ATMEL_SERIAL
atmel_usart.1: ttyS1 at MMIO 0xfffc4000 (irq = 7) is a ATMEL_SERIAL
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
at91_ether: Your bootloader did not configure a MAC address.
eth0: Link down.
eth0: AT91 ethernet at 0xfefbc000 int=24 10-HalfDuplex (00:00:00:00:00:00)
eth0: Intel LXT971A PHY
physmap platform flash device: 00200000 at 10000000
physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank
NOR chip too large to fit in mapping. Attempting to cope...
Intel/Sharp Extended Query Table at 0x0031
Using buffer write method
cfi_cmdset_0001: Erase suspend on write enabled
Reducing visibility of 8192KiB chip to 2048KiB
RedBoot partition parsing not available
kobject_add failed for physmap-flash.0 with -EEXIST, don't try to register things with the same name in the same directory.
[] (dump_stack+0x0/0x14) from [] (kobject_shadow_add+0x164/0x1ac)
[] (kobject_shadow_add+0x0/0x1ac) from [] (kobject_add+0x14/0x1
r8:c02dc000 r7:c0254860 r6:c02547b4 r5:c02547bc r4:0000001c
[] (kobject_add+0x0/0x1 from [] (device_add+0x84/0x530)
[] (device_add+0x0/0x530) from [] (platform_device_add+0x100/0x14c)
[] (platform_device_add+0x0/0x14c) from [] (platform_device_register+0x20/0x24)
r7:00000000 r6:c001e3ec r5:00000000 r4:c02547b4
[] (platform_device_register+0x0/0x24) from [] (physmap_init+0x20/0x30)
r4:00000000
[] (physmap_init+0x0/0x30) from [] (kernel_init+0xc8/0x29
r4:00000000
[] (kernel_init+0x0/0x29 from [] (do_exit+0x0/0x7a
Generic platform RAM MTD, (c) 2004 Simtec Electronics
usbmon: debugfs is not available
at91_ohci at91_ohci: AT91 OHCI
at91_ohci at91_ohci: new USB bus registered, assigned bus number 1
at91_ohci at91_ohci: irq 23, io mem 0x00300000
usb usb1: Product: AT91 OHCI
usb usb1: Manufacturer: Linux 2.6.22-jackyard ohci_hcd
usb usb1: SerialNumber: at91
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
at91_udc: probe of at91_udc failed with error -16
mice: PS/2 mouse device common for all mice
at91_rtc at91_rtc: rtc core: registered at91_rtc as rtc0
AT91 Real Time Clock driver.
i2c /dev entries driver
at91_i2c at91_i2c: AT91 i2c bus driver.
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
at91_rtc at91_rtc: setting the system clock to 1998-01-01 00:00:11 (883612811)
VFS: Cannot open root device "1f02" or unknown-block(31,2)
Please append a correct "root=" boot option; here are the available partitions:
1f00 2048 mtdblock0 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
===========================================================
以上是我把linux 2.6.22移植到at91rm9200上时的问题，文件系统我也烧写进去了，不是文件系统的问题，因为我把一个以前做好的内容核是2.6.12的烧进去，没有问题，可是把刚做的2.6.22的烧进去，就会出现上面的问题。我的启动参数是
setenv bootargs mem=32M console=ttyS0,115200 root=1f02 mtdparts=phys_mapped_flash:384k(UBOOT),1920k(KERNEL),2816K(Cramfs),3072k(JFFS2)
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