no serial console msgs during boot up
I have an ARM board for which the manufacturer provides a pre-compiled zImage. I programmed a linux bootloader for the board which successfully boots the zImage provided by the manufacturer. During boot up all the msgs appear on the serial console in this case.
Now the problem is here.
I tried compiling linux kernel from scratch. I compiled a zImage with some configuration and tried booting it with my bootloader. This time no serial console msgs appear on serial console. I dont have any idea what is the problem? Is there anything essential in kernel configuration for serial console msgs? Does anyone has any idea?