jflash_s3c2440检测不到 flash

在ubuntu 9.04系统下;
fhxy@fhxy-desktop:~/source/Jflash$ sudo ./Jflash-s3c2440 ~/arm/led_key/led_key.bin /t=5

+------------------------------------+
|     SEC JTAG FLASH for 2440+        
|     modified by Quasar 2003.9.22+   
+------------------------------------+
> flashType=5
> S3C2440X(ID=0x0032409d) is detected.

[K9S1208 NAND Flash JTAG Programmer]
ERROR: K9S1208 is not detected. Detected ID=0xecda.

改了好几次，Jflash的源码都没改对，请各位高手帮帮忙！

问题应该出在Nand Flash部分的驱动上。