[U-Boot] How can I make a second serial port on a motorola 8248 Chip known to Linux.

[Scott Wood]

On Wed, Aug 26, 2009 at 01:15:39PM -0700, AGKohler wrote:
> I am using u-boot version 1.1.3, kernel, Linux(Debian) is version 2.6.12.

Both of thosed are extremely old.  Our ability to help you with them is
very limited.  Please use the current code.

> I searched through the kernel configuration options via menuconfig, i could
> not find 
> anything that configures the number of serial ports. In LINUX, i tried
> creating ttyS1 with
> "mknod -m 660 /dev/ttS1 c 4 65". A /dev/ttyS1 shows up in the directory
> listing, but I am unable to
> transmit/receive characters on it.

You want /dev/ttyCPM1, and you should use udev or equivalent to create
the device nodes.

-Scott