Konrad, yes it is a null-modem cable. Cable was bought for this testing.

Thanks

On Wed, Mar 31, 2010 at 6:42 AM, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
On Wed, Mar 31, 2010 at 06:15:59AM -0700, Ritu kaur wrote:
> It's a onboard serial port. From dmesg there are ttyS0 and ttyS1 ports are
> shown and I have tried both of them.

And the cable you have, it is a null modem serial cable? Have you ever
had serial cable working (say with baremetal Linux?)