?

U-boot分区及内核更新的实现

?

一?问题提出

1）?在没有网络的环境下可以使用U盘等存储介质来更新内核

2）?可以通过网络远程更新内核

3）?支持U-Boot对nor falsh?，nand flash的分区

4）?U-Boot下对JFFS2文件系统的支持。

二?问题解决

通过实现U-boot使用JFFS2文件系统加载内核的方法解决上述内核更新及分区问题

?

三?问题实现（u-boot-2009.01）

添加对JFFS2文件系统支持的宏定义

./include/configs/ads5121.h

#define CONFIG_CMD_JFFS2

#define CONFIG_JFFS2_CMDLINE

#define CONFIG_JFFS2_NAND

?

//定义默认的分区信息(最好和内核定义的MTD分区信息一致)

#define MTDIDS_DEFAULT??????????"nor0=ads5121-flash,nand0=ads5121-nand"

#define MTDPARTS_DEFAULT????????"mtdparts=ads5121-flash:256k(protected),"

????????????????????????????????????????"59904k(filesystem),"

????????????????????????????????????????"4m(kernel),"

????????????????????????????????????????"256k(device-tree),"

????????????????????????????????????????"1m(u-boot);"

????????????????????????????????"ads5121-nand:128m(jffs2),"

????????????????????????????????"-(data)"

四?U-Boot分区及更新操作步骤

CPU:???MPC5121e rev. 2.0,Core e300c4 at 400 MHz,CSB at 200 MHz

Board: ADS5121 rev. 0x0400 (CPLD rev. 0x06)

I2C:???ready

DRAM:??512 MB

FLASH: 64 MB

NAND:??1024 MiB

PCI:???Bus Dev VenId DevId Class Int

Net:???FEC ETHERNET

IDE:???Bus 0: not available?

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Type "run flash_nfs" to mount root filesystem over NFS

?

Hit any key to stop autoboot:??0

1?分区操作

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1）手动设置分区信息

setenv mtdids nand0=ads5121-nand

setenv mtdparts mtdparts=ads5121-nand:128m(jffs2 filesystem),4m(kernel),1m(device tree),-(data)

=> mtdparts

no such device nor0

?

device nand0 <ads5121-nand>,# parts = 4

?#: name????????????????????????size????????????offset??????????mask_flags

?0: jffs2 filesystem????0x08000000??????0x00000000??????0

?1: kernel??????????????0x00400000??????0x08000000??????0

?2: device tree?????????0x00100000??????0x08400000??????0

?3: data????????????????0x17b00000??????0x08500000??????0

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active partition: nand0,0 - (jffs2 filesystem) 0x08000000 @ 0x00000000

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defaults:

mtdids??: nor0=ads5121-flash,nand0=ads5121-nand

mtdparts: mtdparts=ads5121-flash:256k(protected),59904k(filesystem),256k(device-tree),1m(u-boot);ads5121-nand:128m(jffs2),-(data)

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2）设置默认的分区信息

=> mtdparts default

=> mtdparts

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device nor0 <ads5121-flash>,# parts = 5

?#: name????????????????????????size????????????offset??????????mask_flags

?0: protected???????????0x00040000??????0x00000000??????0

?1: filesystem??????????0x03a80000??????0x00040000??????0

?2: kernel??????????????0x00400000??????0x03ac0000??????0

?3: device-tree?????????0x00040000??????0x03ec0000??????0

?4: u-boot??????????????0x00100000??????0x03f00000??????0

?

device nand0 <ads5121-nand>,# parts = 2

?#: name????????????????????????size????????????offset??????????mask_flags

?0: jffs2???????????????0x08000000??????0x00000000??????0

?1: data????????????????0x18000000??????0x08000000??????0

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active partition: nor0,0 - (protected) 0x00040000 @ 0x00000000

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defaults:

mtdids??: nor0=ads5121-flash,-(data)

=>

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3）删除分区：

=> mtd?del?nand0,1

=> mtdparts

?

device nor0 <ads5121-flash>,# parts = 1

?#: name????????????????????????size????????????offset??????????mask_flags

?0: jffs2???????????????0x08000000??????0x00000000??????0

?

active partition: nor0,-(data)

=>

4）添加一个分区

=> mtdparts add nand0 0x18000000@0x08000000 data

=> mtdparts

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device nor0 <ads5121-flash>,# parts = 2

?#: name????????????????????????size????????????offset??????????mask_flags

?0: jffs2???????????????0x08000000??????0x00000000??????0

?1: data????????????????0x18000000??????0x08000000??????0

?

active partition: nor0,-(data)

=>

5）修改当前活动分区（如果要操作某个分区，就需要将其修改为当前的活动分区）

=> chpart nand0,0

partition changed to nand0,0

=> mtdparts

?

device nor0 <ads5121-flash>,# parts = 2

?#: name????????????????????????size????????????offset??????????mask_flags

?0: jffs2???????????????0x08000000??????0x00000000??????0

?1: data????????????????0x18000000??????0x08000000??????0

?

active partition: nand0,0 - (jffs2) 0x08000000 @ 0x00000000

?

defaults:

mtdids??: nor0=ads5121-flash,-(data)

=>

2?更新内核

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1）下载新内核到根文件系统

Linux内核将NAND Flash设置了2个分区作为MTD设备：

[root@root /]# cat /proc/mtd

dev:????size???erasesize??name

mtd0: 08000000 00020000 "nand0,128M"

mtd1: 38000000 00020000 "nand0,896M"

分区0:128M，分区1:896M，?分区0是用作存放jffs2等文件系统，分区1作为其他存储用途。我们可以通过网络或者U盘等方法将需要更新的内核下载到linux的根文件系统中：

[root@root /]# ll

drwxr-xr-x????2 root?????root????????????0 Oct 23 09:14 Settings

drwxr-xr-x????2 root?????root????????????0 Nov 25 08:56 bin

drwxr-xr-x????2 root?????root????????????0 Oct 23 08:07 boot

drwxr-xr-x????9 root?????root????????12720 Nov 26 13:41 dev

drwxr-xr-x????8 root?????root????????????0 Nov 26 13:38 etc

drwxr-xr-x????4 root?????root????????????0 Oct 26 10:03 home

drwxr-xr-x????4 root?????root????????????0 Oct 23 08:07 lib

lrwxrwxrwx????1 root?????root???????????11 Nov 25 08:56 linuxrc -> bin/busybox

drwxr-xr-x????7 root?????root????????????0 Oct 23 08:07 mnt

drwxr-xr-x????3 root?????root????????????0 Oct 23 08:07 opt

dr-xr-xr-x???37 root?????root????????????0 Jan??1??1970 proc

drwxr-xr-x????2 root?????root????????????0 Oct 23 08:07 root

drwxr-xr-x????2 root?????root????????????0 Nov 25 08:56 sbin

drwxr-xr-x???11 root?????root????????????0 Jan??1??1970 sys

drwxr-xr-x????2 root?????root?????????4096 Jan??1??1970 tmp

-rwxrwxrwx????1 root?????root??????1702205 Nov 17 02:43 uImage_ori

-rwxr-xr-x????1 root?????root??????1644439 Nov 26 13:41?uImage_update

drwxr-xr-x???11 root?????root????????????0 Nov 13 06:23 usr

drwxr-xr-x???11 root?????root??????????220 Oct 23 08:07 var

[root@root /]#

例如我们要更新才新内核文件为：uImage_update

2）设置激活分区

进入到U-Boot：

U-Boot 2009.03 (11月?25 2009 - 21:22:45) MPC512X

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CPU:???MPC5121e rev. 2.0,CSB at 200 MHz

Board: ADS5121 rev. 0x0400 (CPLD rev. 0x06)

I2C:???ready

DRAM:??512 MB

FLASH: 64 MB

NAND:??1024 MiB

PCI:???Bus Dev VenId DevId Class Int

Net:???FEC ETHERNET

IDE:???Bus 0: not available?

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Type "run flash_nfs" to mount root filesystem over NFS

?

Hit any key to stop autoboot:??0

=> mtdparts default

=> mtdparts

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device nor0 <ads5121-flash>,# parts = 5

?#: name????????????????????????size????????????offset??????????mask_flags

?0: protected???????????0x00040000??????0x00000000??????0

?1: filesystem??????????0x03a80000??????0x00040000??????0

?2: kernel??????????????0x00400000??????0x03ac0000??????0

?3: device-tree?????????0x00040000??????0x03ec0000??????0

?4: u-boot??????????????0x00100000??????0x03f00000??????0

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（注意我们的NAND Flash分区和内核的MTD分区是保持一致的。）

device nand0 <ads5121-nand>,# parts = 2

?#: name????????????????????????size????????????offset??????????mask_flags

?0: jffs2???????????????0x08000000??????0x00000000??????0

?1: data????????????????0x18000000??????0x08000000??????0

?

active partition: nor0,-(data)

=> ls

Scanning JFFS2 FS:??done.

修改当前的活动分区，因为我们要操作的是nand0?的第一个分区（存放有根文件系统同时包含有我们需要更新的内核uImage_update。

=> chpart nand0,-(data)

=>

3）下载更新内核

查看NAND Flash第一分区上存放的JFFS2文件系统内容：

=> ls

Scanning JFFS2 FS: .......................... done.

?drwxr-xr-x????????0 Fri Oct 23 09:14:40 2009 Settings

?drwxr-xr-x????????0 Fri Oct 23 08:07:46 2009 bin

?drwxr-xr-x????????0 Fri Oct 23 08:07:50 2009 boot

?drwxr-xr-x????????0 Fri Oct 23 08:08:34 2009 dev

?drwxr-xr-x????????0 Mon Oct 26 10:12:52 2009 etc

?drwxr-xr-x????????0 Mon Oct 26 09:09:47 2009 home

?drwxr-xr-x????????0 Fri Oct 23 08:07:49 2009 lib

?lrwxrwxrwx???????11 Wed Nov 25 08:56:18 2009 linuxrc -> bin/busybox

?drwxr-xr-x????????0 Fri Oct 23 08:07:50 2009 mnt

?drwxr-xr-x????????0 Fri Oct 23 08:07:46 2009 opt

?drwxr-xr-x????????0 Fri Oct 23 08:07:46 2009 proc

?drwxr-xr-x????????0 Fri Oct 23 08:07:50 2009 root

?drwxr-xr-x????????0 Fri Oct 23 08:07:50 2009 sbin

?drwxr-xr-x????????0 Fri Oct 23 08:07:50 2009 sys

?drwxr-xr-x????????0 Mon Oct 26 10:17:02 2009 tmp

?-rwxrwxrwx??1702205 Tue Nov 17 02:43:01 2009 uImage_ori

?drwxr-xr-x????????0 Fri Oct 23 08:07:49 2009 usr

?drwxr-xr-x????????0 Fri Oct 23 08:07:50 2009 var

?-rwxr-xr-x??1644439 Thu Nov 26 13:41:38 2009 uimage

?-rwxr-xr-x??1644439 Thu Nov 26 13:41:38 2009 uImage

?-rwxr-xr-x??1644439 Thu Nov 26 13:41:38 2009?uImage_update

=>

=>?fsload 0x400000 uImage_update

### JFFS2 loading 'uImage_update' to 0x400000

### JFFS2 load complete: 1644439 bytes loaded to 0x400000

4）烧写新内核到nor flash

查看nor flash分区：

device nor0 <ads5121-flash>,# parts = 5

?#: name????????????????????????size????????????offset??????????mask_flags

?0: protected???????????0x00040000??????0x00000000??????0

?1: filesystem??????????0x03a80000??????0x00040000??????0

?2: kernel??????????????0x00400000??????0x03ac0000??????0

?3: device-tree?????????0x00040000??????0x03ec0000??????0

?4: u-boot??????????????0x00100000??????0x03f00000??????0

我们将分区2作为存放内核，可以算出物理基址为：ffac0000

=> erase ffac0000 ffcfffff

?

......... done

Erased 9 sectors

=> cp.b 0x400000??0xffac0000 0x200000

Copy to Flash... done

5）从内存中启动新下载的内核

=> bootm 0x400000 - 0xffec0000

##?Booting kernel from Legacy Image at 00400000?...

???Image Name:???Linux-2.6.24.6

???Created:??????2009-11-26???5:36:51 UTC

???Image Type:???PowerPC Linux Kernel Image (gzip compressed)

???Data Size:????1644375 Bytes =??1.6 MB

???Load Address: 00000000

???Entry Point:??00000000

???Verifying Checksum ... OK

## Flattened Device Tree blob at ffec0000

???Booting using the fdt blob at 0xffec0000

???Uncompressing Kernel Image ... OK

???Loading Device Tree to 007fb000,end 007ffa2f?... OK

[????0.000000] Using MPC5121 ADS machine description

[????0.000000] Linux version?2.6.24.6 (root@localhost.localdomain) (gcc version 4.1.2) #12 PREEMPT Thu Nov 26 00:36:46 EST 2009

[????0.000000] MPC5121 ADS board from Freescale Semiconductor

[????0.000000] preallocate_diu_videomemory: diu_size=5242880

[????0.000000] preallocate_diu_videomemory: diu_mem=c0a00000

[????0.000000] Found MPC512x PCI host bridge at 0x0000000080008500. Firmware bus number: 0->0

[????0.000000] Zone PFN ranges:

[????0.000000]???DMA?????????????0 ->???131072

[????0.000000]???Normal?????131072 ->???131072

[????0.000000] Movable zone start PFN for each node

[????0.000000] early_node_map[1] active PFN ranges

[????0.000000]?????0:????????0 ->???131072

[????0.000000] Built 1 zonelists in Zone order,mobility grouping on.??Total pages: 130048

[????0.000000] Kernel command line: root=/dev/mtdblock0 rw rootfstype=jffs2 console=ttyPSC0,115200

[????0.000000] IPIC (128 IRQ sources) at fcff7c00

[????0.000000] PID hash table entries: 2048 (order: 11,8192 bytes)

[ 1460.288919] clocksource: timebase mult[5000002] shift[22] registered

[ 1460.289062] Console: colour dummy device 80x25

[ 1460.289166] console [ttyPSC0] enabled

[ 1460.397027] Dentry cache hash table entries: 65536 (order: 6,262144 bytes)

[ 1460.406733] Inode-cache hash table entries: 32768 (order: 5,131072 bytes)

[ 1460.465862] Memory: 508544k/524288k available (3276k kernel code,15536k reserved,148k data,369k bss,184k init)

[ 1460.476258] SLUB: Genslabs=9,HWalign=32,Order=0-1,MinObjects=4,CPUs=1,Nodes=1

[ 1460.563885] Mount-cache hash table entries: 512

[ 1460.570856] net_namespace: 64 bytes

[ 1460.576217] NET: Registered protocol family 16

[ 1460.593330] Reserved irq 66(0x42) for MBX

[ 1460.599847] Could not initialize clk spdif_txclk without a calc routine

[ 1460.606549] Could not initialize clk spdif_rxclk without a calc routine

[ 1460.613459] mapped ioctl to e1002000 and gpioctl to e1004100

[ 1460.619119] PCI: Probing PCI hardware

[ 1460.631440] SCSI subsystem initialized

[ 1460.636450] usbcore: registered new interface driver usbfs

[ 1460.642439] usbcore: registered new interface driver hub

[ 1460.648065] usbcore: registered new device driver usb

[ 1460.668033] NET: Registered protocol family 2

[ 1460.672333] Time: timebase clocksource has been installed.

[ 1460.716619] IP route cache hash table entries: 16384 (order: 4,65536 bytes)

[ 1460.725179] TCP established hash table entries: 65536 (order: 7,524288 bytes)

[ 1460.736154] TCP bind hash table entries: 65536 (order: 6,262144 bytes)

[ 1460.744924] TCP: Hash tables configured (established 65536 bind 65536)

[ 1460.751398] TCP?reno?registered

[ 1460.766726] JFFS2 version 2.2. (NAND) ? 2001-2006 Red Hat,Inc.

[ 1460.773027] io scheduler noop registered

[ 1460.776906] io scheduler anticipatory registered (default)

[ 1460.782367] io scheduler deadline registered

[ 1460.786671] io scheduler cfq registered

[ 1460.833534] Console: switching to colour frame buffer device 128x48

[ 1460.875966] fb0: Panel0 fb device registered successfully.

[ 1460.881944] fb1: Panel1 AOI0 fb device registered successfully.

[ 1460.888286] fb2: Panel1 AOI1 fb device registered successfully.

[ 1460.894657] fb3: Panel2 AOI0 fb device registered successfully.

[ 1460.901024] fb4: Panel2 AOI1 fb device registered successfully.

[ 1460.907066] FSL_DIU_FB: registed FB device driver!

[ 1461.157873] Serial: MPC52xx PSC UART driver

[ 1461.162508] 80011300.serial: ttyPSC0 at MMIO 0x80011300 (irq = 40) is a MPC52xx PSC

[ 1461.171261] 80011400.serial: ttyPSC1 at MMIO 0x80011400 (irq = 40) is a MPC52xx PSC

[ 1461.180919] RAMDISK driver initialized: 4 RAM disks of 16384K size 1024 blocksize

[ 1461.189583] fsl-mscan initializing

[ 1461.194575] fsl-mscan fsl-mscan.0: probe port 0xE1062300 done,clk rate:100000000

[ 1461.203712] fsl-mscan fsl-mscan.1: probe port 0xE1064380 done,clk rate:100000000

[ 1461.213190] eth0: fs_enet: 00:ec:00:12:00:01

[ 1461.218480] FEC MII Bus: probed

[ 1461.221656] Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

[ 1461.227990] ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx

[ 1461.237336] Driver 'sd' needs updating - please use bus_type methods

[ 1461.244449] MPC5121 MTD nand Driver 0.2

[ 1461.249116] NAND device: Manufacturer ID: 0xad,Chip ID: 0xdc (Hynix NAND 512MiB 3,3V 8-bit)

[ 1461.257574] 2 NAND chips detected

[ 1461.263636] mpc5121r2nfc 40000000.nfc: Using OF partition info

[ 1461.269627] Creating 2 MTD partitions on "NAND":

[ 1461.274209] 0x00000000-0x08000000 : "nand0,128M"

[ 1461.279780] 0x08000000-0x40000000 : "nand0,896M"

[ 1461.287204] fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller

[ 1461.294203] fsl-ehci fsl-ehci.0: new USB bus registered,assigned bus number 1

[ 1461.324401] fsl-ehci fsl-ehci.0: irq 44,io mem 0x80004000

[ 1461.340366] fsl-ehci fsl-ehci.0: USB 2.0 started,EHCI 1.00,driver 10 Dec 2004

[ 1461.349065] usb usb1: configuration #1 chosen from 1 choice

[ 1461.355003] hub 1-0:1.0: USB hub found

[ 1461.358793] hub 1-0:1.0: 1 port detected

[ 1461.465293] Initializing USB Mass Storage driver...

[ 1461.704388] usb 1-1: new high speed USB device using fsl-ehci and address 2

[ 1461.851809] usb 1-1: configuration #1 chosen from 1 choice

[ 1461.858825] scsi0 : SCSI emulation for USB Mass Storage devices

[ 1461.865316] usbcore: registered new interface driver usb-storage

[ 1461.871549] USB Mass Storage support registered.

[ 1461.876659] mice: PS/2 mouse device common for all mice

[ 1461.882754] mpc5121-rtc?80000a00.rtc: rtc core: registered mpc5121-rtc as rtc0

[ 1461.890173] i2c?/dev entries driver

[ 1461.900160] Freescale(R) MPC5121 DMA Engine found,64 channels

[ 1462.008639] fsldma: Self-test copy successfully

[ 1462.013770] usbcore: registered new interface driver usbhid

[ 1462.019330] drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver

[ 1462.025844] TCP cubic registered

[ 1462.029247] NET: Registered protocol family 1

[ 1462.033645] NET: Registered protocol family 17

[ 1462.038040] can: controller area network core (rev 20071116 abi 8)

[ 1462.044236] NET: Registered protocol family 29

[ 1462.048897] can: raw protocol (rev 20071116)

[ 1462.053487] RPC: Registered udp transport module.

[ 1462.058152] RPC: Registered tcp transport module.

[ 1462.063233] mpc5121-rtc?80000a00.rtc: setting system clock to 2009-11-26 14:09:26 UTC (1259244566)

[ 1462.073040] JFFS2 doesn't use OOB.

[ 1472.697943] VFS: Mounted root (jffs2 filesystem).

[ 1472.702763] Freeing unused kernel memory: 184k init

Mounting /proc and /sys

Starting the hotplug events dispatcher udevd

Synthesizing initial hotplug events

Setting the hostname to root

Mounting filesystems

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

Starting syslogd and klogd

Running sysctl

Setting up networking on loopback device:

Setting up networking on eth0:

Starting inetd:

[root@root /]#

[root@root /]# ls

Settings???????etc????????????mnt????????????sbin???????????uImage_update

bin????????????home???????????opt????????????sys????????????usr

boot???????????lib????????????proc???????????tmp????????????var

dev????????????linuxrc????????root???????????uImage_ori

从内核的打印信息可以看出我们已经成功的更新了内核。

?

6）从nor flash中启动新烧写的内核

U-Boot 2009.03 (11月?25 2009 - 21:22:45) MPC512X

?

CPU:???MPC5121e rev. 2.0,CSB at 200 MHz

Board: ADS5121 rev. 0x0400 (CPLD rev. 0x06)

I2C:???ready

DRAM:??512 MB

FLASH: 64 MB

NAND:??1024 MiB

PCI:???Bus Dev VenId DevId Class Int

Net:???FEC ETHERNET

IDE:???Bus 0: not available?

?

Type "run flash_nfs" to mount root filesystem over NFS

?

Hit any key to stop autoboot:??0

##?Booting kernel from Legacy Image at ffac0000 ...

???Image Name:???Linux-2.6.24.6

???Created:??????2009-11-26???5:36:51 UTC

???Image Type:???PowerPC Linux Kernel Image (gzip compressed)

???Data Size:????1644375 Bytes =??1.6 MB

???Load Address: 00000000

???Entry Point:??00000000

???Verifying Checksum ... OK

## Flattened Device Tree blob at ffec0000

???Booting using the fdt blob at 0xffec0000

???Uncompressing Kernel Image ... OK

???Loading Device Tree to 007fb000,8192 bytes)

[????0.000010] clocksource: timebase mult[5000002] shift[22] registered

[????0.000154] Console: colour dummy device 80x25

[????0.000256] console [ttyPSC0] enabled

[????0.108108] Dentry cache hash table entries: 65536 (order: 6,262144 bytes)

[????0.117851] Inode-cache hash table entries: 32768 (order: 5,131072 bytes)

[????0.176872] Memory: 508544k/524288k available (3276k kernel code,184k init)

[????0.187255] SLUB: Genslabs=9,Nodes=1

[????0.274882] Mount-cache hash table entries: 512

[????0.281868] net_namespace: 64 bytes

[????0.287198] NET: Registered protocol family 16

[????0.304306] Reserved irq 66(0x42) for MBX

[????0.310816] Could not initialize clk spdif_txclk without a calc routine

[????0.317521] Could not initialize clk spdif_rxclk without a calc routine

[????0.324434] mapped ioctl to e1002000 and gpioctl to e1004100

[????0.330093] PCI: Probing PCI hardware

[????0.342369] SCSI subsystem initialized

[????0.347365] usbcore: registered new interface driver usbfs

[????0.353359] usbcore: registered new interface driver hub

[????0.358990] usbcore: registered new device driver usb

[????0.378997] NET: Registered protocol family 2

[????0.383295] Time: timebase clocksource has been installed.

[????0.427587] IP route cache hash table entries: 16384 (order: 4,65536 bytes)

[????0.436137] TCP established hash table entries: 65536 (order: 7,524288 bytes)

[????0.447132] TCP bind hash table entries: 65536 (order: 6,262144 bytes)

[????0.455888] TCP: Hash tables configured (established 65536 bind 65536)

[????0.462362] TCP?reno?registered

[????0.477663] JFFS2 version 2.2. (NAND) ? 2001-2006 Red Hat,Inc.

[????0.483964] io scheduler noop registered

[????0.487844] io scheduler anticipatory registered (default)

[????0.493305] io scheduler deadline registered

[????0.497606] io scheduler cfq registered

[????0.544454] Console: switching to colour frame buffer device 128x48

[????0.586907] fb0: Panel0 fb device registered successfully.

[????0.592885] fb1: Panel1 AOI0 fb device registered successfully.

[????0.599232] fb2: Panel1 AOI1 fb device registered successfully.

[????0.605598] fb3: Panel2 AOI0 fb device registered successfully.

[????0.611961] fb4: Panel2 AOI1 fb device registered successfully.

[????0.618004] FSL_DIU_FB: registed FB device driver!

[????0.868626] Serial: MPC52xx PSC UART driver

[????0.873254] 80011300.serial: ttyPSC0 at MMIO 0x80011300 (irq = 40) is a MPC52xx PSC

[????0.882000] 80011400.serial: ttyPSC1 at MMIO 0x80011400 (irq = 40) is a MPC52xx PSC

[????0.891674] RAMDISK driver initialized: 4 RAM disks of 16384K size 1024 blocksize

[????0.900339] fsl-mscan initializing

[????0.905331] fsl-mscan fsl-mscan.0: probe port 0xE1062300 done,clk rate:100000000

[????0.914468] fsl-mscan fsl-mscan.1: probe port 0xE1064380 done,clk rate:100000000

[????0.923951] eth0: fs_enet: 00:ec:00:12:00:01

[????0.929250] FEC MII Bus: probed

[????0.932421] Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

[????0.938751] ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx

[????0.948123] Driver 'sd' needs updating - please use bus_type methods

[????0.955179] MPC5121 MTD nand Driver 0.2

[????0.959877] NAND device: Manufacturer ID: 0xad,3V 8-bit)

[????0.968370] 2 NAND chips detected

[????0.974412] mpc5121r2nfc 40000000.nfc: Using OF partition info

[????0.980418] Creating 2 MTD partitions on "NAND":

[????0.984984] 0x00000000-0x08000000 : "nand0,128M"

[????0.990570] 0x08000000-0x40000000 : "nand0,896M"

[????0.998018] fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller

[????1.005015] fsl-ehci fsl-ehci.0: new USB bus registered,assigned bus number 1

[????1.035367] fsl-ehci fsl-ehci.0: irq 44,io mem 0x80004000

[????1.051326] fsl-ehci fsl-ehci.0: USB 2.0 started,driver 10 Dec 2004

[????1.060019] usb usb1: configuration #1 chosen from 1 choice

[????1.065956] hub 1-0:1.0: USB hub found

[????1.069738] hub 1-0:1.0: 1 port detected

[????1.176257] Initializing USB Mass Storage driver...

[????1.415352] usb 1-1: new high speed USB device using fsl-ehci and address 2

[????1.562650] usb 1-1: configuration #1 chosen from 1 choice

[????1.569648] scsi0 : SCSI emulation for USB Mass Storage devices

[????1.576156] usbcore: registered new interface driver usb-storage

[????1.582390] USB Mass Storage support registered.

[????1.587525] mice: PS/2 mouse device common for all mice

[????1.593616] mpc5121-rtc?80000a00.rtc: rtc core: registered mpc5121-rtc as rtc0

[????1.601034] i2c?/dev entries driver

[????1.610959] Freescale(R) MPC5121 DMA Engine found,64 channels

[????1.719596] fsldma: Self-test copy successfully

[????1.724711] usbcore: registered new interface driver usbhid

[????1.730270] drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver

[????1.736784] TCP cubic registered

[????1.740195] NET: Registered protocol family 1

[????1.744596] NET: Registered protocol family 17

[????1.748991] can: controller area network core (rev 20071116 abi 8)

[????1.755189] NET: Registered protocol family 29

[????1.759846] can: raw protocol (rev 20071116)

[????1.764433] RPC: Registered udp transport module.

[????1.769096] RPC: Registered tcp transport module.

[????1.774171] mpc5121-rtc?80000a00.rtc: setting system clock to 2009-11-26 14:13:58 UTC (1259244838)

[????1.783976] JFFS2 doesn't use OOB.

[???12.421437] VFS: Mounted root (jffs2 filesystem).

[???12.426255] Freeing unused kernel memory: 184k init

Mounting /proc and /sys

Starting the hotplug events dispatcher udevd

Synthesizing initial hotplug events

Setting the hostname to root

Mounting filesystems

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

cp: write error: No space left on device

Starting syslogd and klogd

Running sysctl

Setting up networking on loopback device:

Setting up networking on eth0:

Starting inetd:

[root@root /]# ls

Settings???????etc????????????mnt????????????sbin???????????uImage_update

bin????????????home???????????opt????????????sys????????????usr

boot???????????lib????????????proc???????????tmp????????????var

dev????????????linuxrc????????root???????????uImage_ori

[root@root /]#

可见下载到nor flash中的内核也是我们更新后的内核。