[U-Boot] Keyboard enable at u-boot for Beagleboard

[LIVIN SUNNY]

Hi ,
     I have an issue regarding u-boot. I'm using Beagle-board Rev B as well
as omap3_evm. i would like to enable keyboard at the u-boot level,i.e the
keyboard is connected to the target and entering the text.But the problem
is that at the U-boot, keyboard is not responding( no lights ) for both the
devices.When i checked the USB info ,the current for keyboard was
70mA(actual 100mA for keyboard). But after the boot level the keyboard
light blinks and works well and fine.
     What will be the reason for lowering the current at the u-boot and
increasing after the initialization of the USB at the kernel level?? Is
there any change i have to make in the U-boot code for beagle board as well
as for the omap3_evm??
-- 
With thanks & regards,

Livin