linux移植pxa270错误：IP-Config: Device eth0 not found.VFS错误

Question

在pxa270上移植linux-2.6.9内核。
请教错误：

Start boot kernel...
set boot params : "root=/dev/mtdblock2 init=/linuxrc console=ttyS0,115200 devfs=mount display=shp240"
Uncompressing Linux......................................................................................... done, booting the kernel.

Linux version 2.6.9 (root@ce6) (gcc version 3.3.2) #1 Wed Sep 19 15:46:59 CST 2007

CPU: XScale-PXA270 [69054117] revision 7 (ARMv5TE)

CPU: D undefined 5 cache

CPU: I cache: 32768 bytes, associativity 32, 32 byte lines, 32 sets

CPU: D cache: 32768 bytes, associativity 32, 32 byte lines, 32 sets

Machine: Intel HCDDBBVA0 Development Platform (aka Mainstone)

Memory policy: ECC disabled, Data cache writeback

Run Mode clock: 208.00MHz (*16)

Turbo Mode clock: 520.00MHz (*2.5, active)

Memory clock: 104.00MHz (/2)

System bus clock: 104.00MHz

Built 1 zonelists

Kernel command line: root=/dev/mtdblock2 rootfstype=jffs2 ip=192.168.1.101:192.168.1.100::255.255.255.0::eth0n console=ttyS0,115200 mem=64M

PID hash table entries: 512 (order: 9, 8192 bytes)

Console: colour dummy device 80x30

Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)

Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)

Memory: 64MB = 64MB total

Memory: 61952KB available (2285K code, 497K data, 104K init)

Mount-cache hash table entries: 512 (order: 0, 4096 bytes)

CPU: Testing write buffer coherency: ok

NET: Registered protocol family 16

SCSI subsystem initialized

NET: Registered protocol family 23

NetWinder Floating Point Emulator V0.97 (double precision)

devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)

devfs: devfs_debug: 0x0

devfs: boot_options: 0x1

JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc.

Initializing Cryptographic API

Console: switching to colour frame buffer device 30x40

SA1100/PXA2xx Watchdog Timer: timer margin 60 sec

ttyS0 at MMIO 0x40100000 (irq = 22) is a FFUART

ttyS1 at MMIO 0x40200000 (irq = 21) is a BTUART

ttyS2 at MMIO 0x40700000 (irq = 20) is a STUART

RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize

loop: loaded (max 8 devices)

Using anticipatory io scheduler

nbd: registered device at major 43

Linux video capture interface: v1.00

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx

mice: PS/2 mouse device common for all mice

i2c /dev entries driver

NET: Registered protocol family 2

IP: routing cache hash table of 512 buckets, 4Kbytes

TCP: Hash tables configured (established 4096 bind 8192)

NET: Registered protocol family 1

NET: Registered protocol family 17

IP-Config: Device `eth0' not found.

Root-NFS: No NFS server available, giving up.

VFS: Unable to mount root fs via NFS, trying floppy.

VFS: Cannot open root device "mtdblock2" or unknown-block(2,0)

Please append a correct "root=" boot option

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)