mini2440 nandflash启动系统故障

系统从nandflash启动有时可以正常启动
但有时会打印一些错误信息，然后打印出bootloader信息
如下：

MMU table base address = 0x33DFC000

DIVN_UPLL0

MPLLVal [M:7fh,P:2h,S:1h]

CLKDIVN:5h

 

 

+---------------------------------------------+

| S3C2440A USB Downloader ver R0.03 2004 Jan  |

+---------------------------------------------+

USB: IN_ENDPOINT:1 OUT_ENDPOINT:3

FORMAT: <ADDR(DATA):4>+<SIZE(n+10):4>+<DATA:n>+<CS:2>

NOTE: Power off/on or press the reset button for 1 sec

      in order to get a valid USB device address.

 

NAND device: Manufacture ID: 0xec, Chip ID: 0x76 (Samsung K9D1208V0M)

Found saved vivi parameters.

 

##### FriendlyARM BIOS 2.0 for 2440 #####

[x] format NAND FLASH for Linux

[v] Download vivi

[k] Download linux kernel

[y] Download root_yaffs image

[a] Absolute User Application

[n] Download Nboot for WinCE

[l] Download WinCE boot-logo

[w] Download WinCE NK.bin

[d] Download & Run

[z] Download zImage into RAM

[g] Boot linux from RAM

[f] Format the nand flash

Boot the system

Set the boot parameters

Backup NAND Flash to HOST through USB(upload)

[r] Restore NAND Flash from HOST through USB

[q] Goto shell of vivi

Version: 1026-2K

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