If your kernel image is large, you will need to change this config.
Processor type and features-->(0x00500000) Link address offset for booting.
The zImage load address is ( your sdram base address + link address offset ). The boot loader will uncompress the code to the beginning of sdram. If the uncompressed code is bigger than the default 5M, the two area will overlap and corrupt. The compressed image offset should be adjusted to a higher value when the kernel image is big, eg, large files in romfs dir. You can change this value to about 2/3 of the size of your sdram, eg, 20M out fo 32M. I suggest 2/3 because the gzip compression ratio is about 1:2. The zImage boot loader does not relocate/move itself.
If you can not find Platform board support of your board in Processor features, just use the default.
Serial Uart on NEEK
The serial uart TXD pin is a dual purpose pin, you have to change the pin usage,
Assignements -> Device Settings -> Device -> Device and Pin Options -> Dual-Purpose Pins -> nCEO -> Use as regular IO