i am not able to see the uboot messages over omap3530 board

hi ...i am new to linux.i just tried to flash the uboot
i excecuted the following comands
OMAP3EVM# mw.b 0x80000000 0xFF 0x100000
OMAP3EVM# tftp 0x80000000 u-boot.bin
OMAP3EVM# nand unlock
OMAP3EVM# nand erase 80000 80000
OMAP3EVM# nand ecc sw
OMAP3EVM# nand write 0x80000000 80000 80000

OMAP3EVM# setenv bootargs mem=128M console=ttyS0,115200n8
root=/dev/ram0 rw initrd=0x81600000,16M ip=dhcp

OMAP3EVM# setenv 'bootcmd dhcp;
tftp 0x80000000 uImage;tftp 0x81600000 ramdisk.gz;
bootm 80000000'

but after excecutig these commands.i swithed on the omap3530 board
over hyperterminal i am getting only below messages

Texas Instruments X-Loader 1.41
Starting OS Bootloader...

but i am not able to get the uboot messages like below i was getting
Texas Instruments X-Loader 1.41
Starting OS Bootloader...

U-Boot 1.1.4 (May 2 2008 - 18:40:55)

OMAP3-GP rev 2, CPU-OPP2 L3-165MHz
OMAP3EVM 1.0 Version + mPOP (Boot NAND)
DRAM: 128 MB
NAND:256 MiB
In: serial
Out: serial
Err: serial

plz help me out.


you should read [1] and [2].


[1] http://elinux.org/BeagleBoardRecovery
[2] http://code.google.com/p/beagleboard/wiki/BeagleboardRevCValidation