I am trying to get kgdb working with Android kernel using http://bootloader.wikidot.com/android:kgdb. I got stucked at following step:
Configure kernel
http://www.stlinux.com/u-boot/kernel-booting
You can Change kernel command line like this:
setenv bootargs mem=128M kgdboc=ttyGS0 kgdbretry=4
saveenv
you may need to delete console=ttyAS0,115200 for kgdb to work properly.
console=ttyAS0,115200