No BIOS , PS/2 keyboard can be used on my X86 emulation board?

Dear everyone, I am a new guy.

I have a trouble now.

My emulation board is a x86 system, and the software architecture is Redboot + kernel + busybox, no BIOS.
Now the PS/2 keyboard cannot be used, because of the BIOS?

Not really enough information.
No BIOS should not be problem if the kernel is designed for the system.
What is the make / model of the x86 system?

The sytemp has the general PS/2 keybd and mouse ports, IDE interface, PCI slot, JTAG interface, uart port, two usb OTG ports, and two ethernet ports.
And 4 MB flash , 16 MB sdram.
It also leave over a slot that can install a BIOS chip.

Still not the right info.

Don't just descrive what the hardware looks like.. what kind of chipset is on it, what kind of motherboard do you have?

First sorry for the incomplete info.
Actually, the board is a embeded system, not the PC's motherboard.