On Thu, 24 May 2012 08:05:12 -0700 (PDT) Dmitriy Alekseev <alexeev6@xxxxxxxxx> wrote: > The link I gave is original source, which I afterwards changed according to my parameters - clock and processor memory map. > > You right about offset 0x8, this is offset between ports in my 68 mode, I corrected, but it doesn't give any result. You may have to stick some traces into drivers/tty/8250.c at this point and see what is going on. It's clearly trying to do the set up right, and created the ports but didn't believe the hardware. That usually implies that a parameter is wrong somewhere. -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html