I have been trying to connect iMX28 EVK Board with a bluetooth module via UART port to only check if the communication is working. I found that the communication works when I connect to UART1 (Upper port). But when I connect to UART2 (Lower port), it gives a message "mxs-auart mxs-auart.1: Unhandled status 520280" and communication doesn't work. I searched in community but not able to find a solution. I haven't configured anything and working with default settings only.