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最近正在往powerpc板上移植linux，bootloader用的是原先可以正常引导vxworks的Uboot，但是linux启动时遇到了问题，就是内核被正确的解压后,系统就hang掉了,不知道是为什么，下面是启动现象：
U-Boot 1.1.4 (gcc version 3.3.3 (DENX ELDK 3.1.1 3.3.3-10)) # 2007-04-24 09:56:45
MPC8260 Reset Status: External Soft, External Hard
MPC8260 Clock Configuration
 - Bus-to-Core Mult 3.5x, VCO Div 2, 60x Bus Freq  30-85 , Core Freq 100-300
 - dfbrg 1, corecnf 0x1e, busdf 5, cpmdf 1, plldf 0, pllmf 7
 - vco_out  528000000, scc_clk  132000000, brg_clk   33000000
 - cpu_clk  308000000, cpm_clk  264000000, bus_clk   88000000
 - pci_clk   33000000

CPU:   MPC8260 (HiP7 Rev 14, Mask 1.0 1K49M) at 308 MHz
Board: TOGLOBE TGL8280 - CCU-0.1
I2C:   ready
DRAM:  64 MB
FLASH: 16 MB
In:    serial
Out:   serial
Err:   serial
Net:   FCC3 ETHERNET
BEDBUG:ready
Hit any key to stop autoboot:  0

TGL8280 # tftp 0x500000 pImage_2.6.14
Using FCC3 ETHERNET device
TFTP from server 192.168.0.117; our IP address is 192.168.0.200
Filename 'pImage_2.6.14'.
Load address: 0x500000
Loading: #################################################################
         #################################################################
         #################################################################
         ############
done
Bytes transferred = 1057663 (10237f hex)
TGL8280 # bootm
## Booting image at 00500000 ...
   Image Name:  
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    1057599 Bytes =  1 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
到这就不动了，不知道是为什么，还请高手们指点一二！！！