PCI Dual Port Serial Card
jhb at FreeBSD.org
Mon Jan 12 12:56:27 PST 2004
On Friday 09 January 2004 06:03 pm, Crist J. Clark wrote:
> On Thu, Jan 08, 2004 at 03:13:32PM -0500, John Baldwin wrote:
> > On Thursday 08 January 2004 01:39 pm, Crist J. Clark wrote:
> > > I've got a StarTech.com two port PCI card, 16C950, which is seems to
> > > be a rebranded Oxford Semiconductor OX16PCI954 PCI UART, listed as
> > > supported in the release notes for 5.1. The system in question is
> > > 5.1-p10.
> > >
> > > I've compiled the puc(4) driver into the kernel, and the dmesg(8)
> > > looks like so,
> > >
> > > sio0: <Oxford Semiconductor PCI Dual Port Serial> port
> > > 0xdf40-0xdf5f,0xdf60-0xdf67 mem
> > > 0xfeacd000-0feacdfff,0xfeace000,0xfeacefff irq 3 at device 12.0 on pci2
> > > sio0: moving to sio1
> > > sio1: type 16550A
> > >
> > > One of the ports in the card works fine as sio1, as does the built-in
> > > serial port, sio0, but the second port in the card doesn't show up
> > > anywhere.
> > >
> > > What do I need to do to get the system to find the second port on the
> > > card?
> Oops. Didn't look closely enought at the numbers. I thought my card
> was already in pucdata.c, but that's the 0x95011415 as opposed to my
> I tried the patch, but the system locked up hard during the boot when
> it came time to probe the ATA devices. Haven't had time to look at it
> carefully or catch the boot messages on a serial console.
Sounds like an interrupt storm. If this is on current, try compiling in DDB
and dropping into it when it freezes and do a 'show intrcnt'.
John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
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