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    Subject8250 vs pxa_serial (was Re: pxa27x/spitz: serials in recent kernels)
    Hi!

    > > I cculd not get serial port to work in recent kernels (2.6.35 was
    > > oldest I tried). I know they are little used but still very useful for
    > > debugging.
    > >
    > > Is there some special config that needs to be done?
    > >                                                        Pavel
    >
    > I have output on ttyS0 using the Sharp cable, never had issues.
    > Remember that bootloader is 9600n8 while kernels are usually 115200n8.

    Ok, I know what is going on. I need both PXA_SERIAL and 8250... and
    these two don't go well together.

    I tried:

    CONFIG_SERIAL_8250=y
    # CONFIG_SERIAL_8250_CONSOLE is not set
    CONFIG_SERIAL_8250_CS=y
    CONFIG_SERIAL_8250_NR_UARTS=1
    CONFIG_SERIAL_8250_RUNTIME_UARTS=0
    # CONFIG_SERIAL_8250_EXTENDED is not set

    #
    # Non-8250 serial port support
    #
    # CONFIG_SERIAL_MAX3100 is not set
    # CONFIG_SERIAL_MAX3107 is not set
    CONFIG_SERIAL_PXA=y
    CONFIG_SERIAL_PXA_CONSOLE=y
    CONFIG_SERIAL_CORE=y
    CONFIG_SERIAL_CORE_CONSOLE=y

    (BTW should 8250_RUNTIME_UARTS be called "boottime uarts"? That's what
    help says).

    ...but no luck. As soon as I enable 8250, pxa serials stop working
    :-(.
    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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