[0] = {

.uartclk = 9600*16,

.iotype = UPIO_MEM,

.mapbase = 0xfc000000,

.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ,

.irq = MPC52xx_IRQ1,

[1] = {

.uartclk = 9600*16,,

.iotype = UPIO_MEM,

.mapbase = 0xfc000008,

.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ,

.irq = MPC52xx_IRQ1,

[2] = {

.uartclk = 9600*16,,

.iotype = UPIO_MEM,

.mapbase = 0xfc000010,

.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ,

.irq = MPC52xx_IRQ2,

[3] = {

.uartclk = 9600*16,,

.iotype = UPIO_MEM,

.mapbase = 0xfc000018,

.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ,

.irq = MPC52xx_IRQ2,

[4] = {

.uartclk = 9600*16,,

.iotype = UPIO_MEM,

.mapbase = 0xfc000020,

.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ,

.irq = MPC52xx_IRQ3,

[5] = {

.uartclk = 9600*16,,

.iotype = UPIO_MEM,

.mapbase = 0xfc000028,

.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ,

.irq = MPC52xx_IRQ3,

{},

};

static struct platform_device serial8250_device = {

.name = "serial8250",

.id = 0,

.dev.platform_data = serial8250_ports,

};

static int __init

add_serial8250_devices(void)

{

return platform_device_register(&serial8250_device);

}

arch_initcall(add_serial8250_devices);

The boot message is :

FT-Boot 1.2.0 (Sep 17 2008 - 09:16:55)

CPU: MPC5200 v2.2, Core v1.4 at 462 MHz

Bus 132 MHz, IPB 132 MHz, PCI 33 MHz

Board: FXALM（mpc52xx)

I2C: 85 kHz, ready

DRAM: 256 MB

FLASH: (Bank#1 - 512 kB, Bank#2 - 16 MB) 16.5 MB

In: serial

Out: serial

Err: serial

Net: FEC ETHERNET

IDE: Bus 0: OK

Device 0: Model: 128MB ATA Flash Disk Firm: ADAA408J Ser#: A161112339F000831558

Type: Hard Disk

Capacity: 122.1 MB = 0.1 GB (250112 x 512)

Hit any key to stop autoboot: 0

Using FEC ETHERNET device

TFTP from server 192.168.1.40; our IP address is 192.168.1.50

Filename '/tftpboot/uImage'.

Load address: 0x200000

Loading: #################################################################

#################################################################

########################################################

done

Bytes transferred = 1281939 (138f93 hex)

## Booting image at 00200000 ...

Image Name: Linux-2.6.16

Created: 2008-11-19 19:22:59 UTC

Image Type: PowerPC Linux Kernel Image (gzip compressed)

Data Size: 1281875 Bytes = 1.2 MB

Load Address: 00000000

Entry Point: 00000000

Uncompressing Kernel Image ... OK

id mach(): done

MMU:enter

MMU:hw init

MMU:mapin

MMU:setio

MMU:exit

setup_arch: enter

setup_arch: bootmem

arch: exit

bootinfo is find_bootinfo()<5>Linux version 2.6.16 (root@localhost.localdomain) (gcc version 3.4.3) #50 Thu No8

Built 1 zonelists

Kernel command line: console=ttyPSC0,9600 root=/dev/nfs rw nfsroot=192.168.1.40:/home/hyz/ltib-mpc5200-20070201

PID hash table entries: 2048 (order: 11, 32768 bytes)

Console: colour dummy device 80x25

Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)

Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)

Memory: 256896k available (1968k kernel code, 664k data, 100k init, 0k highmem)

Mount-cache hash table entries: 512

NET: Registered protocol family 16

DMA: MPC52xx BestComm driver

MPC52xx BestComm inited

SCSI subsystem initialized

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler deadline registered

io scheduler cfq registered

Serial: 8250/16550 driver $Revision: 1.90 $ 6 ports, IRQ sharing enabled

serial8250.0: ttyS0 at MMIO 0xfc000000 (irq = 6) is a 16550A

serial8250.0: ttyS1 at MMIO 0xfc000008 (irq = 6) is a 16550A

serial8250.0: ttyS2 at MMIO 0xfc000010 (irq = 7) is a 16550A

serial8250.0: ttyS3 at MMIO 0xfc000018 (irq = 7) is a 16550A

serial8250.0: ttyS4 at MMIO 0xfc000020 (irq = 8) is a 16550A

serial8250.0: ttyS5 at MMIO 0xfc000028 (irq = 8) is a 16550A

Serial: MPC52xx PSC driver

ttyPSC0 at MMIO 0xf0002000 (irq = 40) is a MPC52xx PSC

ttyPSC1 at MMIO 0xf0002200 (irq = 41) is a MPC52xx PSC

ttyPSC2 at MMIO 0xf0002400 (irq = 42) is a MPC52xx PSC

ttyPSC3 at MMIO 0xf0002600 (irq = 50) is a MPC52xx PSC

ttyPSC4 at MMIO 0xf0002800 (irq = 51) is a MPC52xx PSC

ttyPSC5 at MMIO 0xf0002c00 (irq = 43) is a MPC52xx PSC

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

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

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

ide: MPC52xx IDE/ATA driver

eth0: Phy @ 0x0, type LXT971 (0x001378e2)

hda: 128MB ATA Flash Disk, ATA DISK drive

ide0 at 0xf0003a60-0xf0003a67,0xf0003a5c on irq 46

mpc52xx-ide: Setup successful for ide0 (mem=f0003a00-f0003aff irq=46)

hda: max request size: 128KiB

hda: 250112 sectors (128 MB) w/1KiB Cache, CHS=977/8/32

hda: cache flushes not supported

hda: hda1

flash chip on the Lite5200/Lite5200B: Found 1 x16 devices at 0x0 in 8-bit bank

Intel/Sharp Extended Query Table at 0x0031

Using buffer write method

cfi_cmdset_0001: Erase suspend on write enabled

Creating 1 MTD partitions on "flash chip on the Lite5200/Lite5200B":

0x00000000-0x01000000 : "Filesystem"

mice: PS/2 mouse device common for all mice

NET: Registered protocol family 2

IP route cache hash table entries: 4096 (order: 2, 16384 bytes)

TCP established hash table entries: 16384 (order: 4, 65536 bytes)

TCP bind hash table entries: 16384 (order: 4, 65536 bytes)

TCP: Hash tables configured (established 16384 bind 16384)

TCP reno registered

TCP bic registered

NET: Registered protocol family 1

NET: Registered protocol family 17

eth0: config: auto-negotiation on, 100HDX, 10HDX.

IP-Config: Complete:

device=eth0, addr=192.168.1.50, mask=255.255.255.0, gw=192.168.1.1,

host=192.168.1.50, domain=, nis-domain=(none),

bootserver=192.168.1.40, rootserver=192.168.1.40, rootpath=

Looking up port of RPC 100003/2 on 192.168.1.40

Looking up port of RPC 100005/1 on 192.168.1.40

VFS: Mounted root (nfs filesystem).

Freeing unused kernel memory: 100k init

Stoping here now~~~, I can't find reason and what I should do?