Keyboard interface test fails

Hi,
Iam trying to bring up the PS/2 mouse on a custom board based on RM5231A MIPS processor and IT8172 companion chip.

The PS/2 mouse and keyboard are connected to the Super IO chip IT712F-A (version 7). The keyboard gives me "interface failed self test" error and the mouse events does not get recognized.

Iam running kernel version 2.4.25.

I have dumped the status and the data register contents when the "keyboard interface failure" happens. The data register content is "0x2" - which means clock is line stuck high. But the key presses are recognized and iam able to work with the keyboard well.

I dont know if anyone has faced such a problem with this particular version of Super IO or do i have to apply a patch ??

regards
priya