I basically did my own BSP with the profile of "Test and development". After flashing the kernel and rootfs onto the SD card. It can boot up the board.
However, I can only see the serial console output, but nothing is shown on the HDMI monitor. The monitor's status is "No Signal". Is this normal or do I need to explicitly include the HDMI driver somewhere?
what is the kernel used?
and what´s the bootargs?
if you use FSL kernel you must include video information in bootargs in order to see it on HDMI. Take a look on release notes