I've just received the i.MX53 QSB board. I've inserted the supplied SD card, and RS232 cable and power up the board. I can see uboot booting and counting down 3s before booting up the kernel.
Unfortunately I can't prevent uboot from booting the kernel as uboot doesn't accept any input from my keyboard. I'm using minicom. I'm sure my connection to PC is working fine as if I just swap the 53QSB board for a i.mx51 EVK it works as it should.
The same happens if I let the kernel boot up. When it comes to entering the username and password I just can't enter anything through the RS232 connection.
Is this a know issue with i.mx53QSB ?