在使用uboot引导linux内核时，刚进入到内核阶段板子就重启了，
用板子自带的uboot可以引导加载内核。现在怀疑是uboot问题，
但不知道uboot哪块没有初始化好，导致引导内核时重启？
求大神指教啊！！！！
下面是打印信息，红色部分是内核打印出来的信息：
U-Boot 1.1.4 (Dec 11 2012 - 23:34:32)
U-boot DB120
DRAM:
sri
Wasp 1.2
WASP BOOTSTRAP REGISYTER ac05d6
wasp_ddr_initial_config(256): (16bit) ddr2 init
64 MB
Top of RAM usable for U-Boot at: 84000000
Reserving 248k for U-Boot at: 83fc0000
Reserving 192k for malloc() at: 83f90000
Reserving 44 Bytes for Board Info at: 83f8ffd4
Reserving 36 Bytes for Global Data at: 83f8ffb0
Reserving 128k for boot params() at: 83f6ffb0
Stack Pointer at: 83f6ff98
Now running in RAM - U-Boot at: 83fc0000
id read 0x100000ff
flash size 16MB, sector count = 256
Flash: 16 MB
pci_init_board: PCIe PLL not set for 40MHz refclk
BOARD IS NOT CALIBRATED!!!
In: serial
Out: serial
Err: serial
Net: ag934x_enet_initialize...
No valid address in Flash. Using fixed address
wasp reset mask:c03300
WASP ----> rtl8211e PHY *
: cfg1 0xf cfg2 0x7114
eth0: 00:03:7f:09:0b:ad
eth0 phy RTL8211E address 1 Phy ID 1c:c915
RTL8211E: Auto-Negotiation Success
eth0 up
eth0
Hit any key to stop autoboot: 0
## Booting image at 9fa80000 ...
Image Name: Linux Kernel Image
Created: 2012-12-11 16:19:26 UTC
Image Type: MIPS Linux Kernel Image (lzma compressed)
Data Size: 910258 Bytes = 888.9 kB
Load Address: 80002000
Entry Point: 801e2cb0
Verifying Checksum at 0x9fa80040 ...OK
Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 801e2cb0) ...
## Giving linux memsize in bytes, 67108864
Starting kernel ...
Booting Atheros AR934x
U-Boot 1.1.4 (Dec 11 2012 - 23:34:32)
U-boot DB120
DRAM:
sri
Wasp 1.2
WASP BOOTSTRAP REGISYTER ac05d6
wasp_ddr_initial_config(256): (16bit) ddr2 init
64 MB
Top of RAM usable for U-Boot at: 84000000
Reserving 248k for U-Boot at: 83fc0000
Reserving 192k for malloc() at: 83f90000
Reserving 44 Bytes for Board Info at: 83f8ffd4
Reserving 36 Bytes for Global Data at: 83f8ffb0
Reserving 128k for boot params() at: 83f6ffb0
Stack Pointer at: 83f6ff98
Now running in RAM - U-Boot at: 83fc0000
id read 0x100000ff
flash size 16MB, sector count = 256