I am using older kernel in my developing i.MX6 SABREAUTO platform and I am able to boot up with this kerenl.
But I can't find /ttymxc2 in my system, try to check the log from dmesg, and only find below
21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 61) is a IMX
I have another build which use kernel 3.10.9, but it has /dev/ttymxc2
Should I configure any in my 3.5.7 kernel environment?