On Mon, 7 Mar 2011 22:59:36 +0000 (UTC) Stuart Henderson wrote:
> The PCIE parts use quite different addresses. You can try these:
>
> { PUC_PORT_TYPE_COM, 0x10, 0x1000, 4000000 * 8 },
> { PUC_PORT_TYPE_COM, 0x10, 0x1200, 4000000 * 8 },
Thanks, with these values the system doesn't freeze anymore and
I can send data from one port to another.
> The speeds will almost certainly be wrong, you'll probably need to
> cu -s 4800 to get a 9600 baud connection with this (the divisor should
> be 4000000 * 16 but I couldn't get this to work, for more info see
> http://marc.info/?l=openbsd-tech&m=126446213208560&w=2).
>
> I may have datasheets for this somewhere...you can learn some things
> from the linux driver too, they have some fancy stuff to work out how
> many ports the devices have, etc.
I tried to look at drivers/serial/8250_pci.c at one point, but couldn't
find anything special for these oxford cards. (I also didn't realize that
first_offset = 0x1000, .uart_offset = 0x200 maps into 0x1000/0x1200 on
OpenBSD, so I probably missed other things too.)
--
Tero Koskinen <[email protected]>
