Date: Sat, 19 Jan 2019 09:37:42 -0800 (PST) From: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> To: Warner Losh <imp@bsdimp.com> Cc: Kurt Jaeger <pi@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Multiport serial card Exsys EX-44388, where are the devices ? Message-ID: <201901191737.x0JHbgcg061647@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <CANCZdfpRM4ncTdM7W%2BOQcs==-kaCaJSz%2B7Jv_PrSq2njgZQ94w@mail.gmail.com>
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> On Sat, Jan 19, 2019 at 2:52 AM Kurt Jaeger <pi@freebsd.org> wrote:
>
> > Hi!
> >
> > > uart is the new thing. sio info should be ignored.
> > >
> > > Chances are good that this device doesn't have the proper entries in the
> > > puc driver. Do you have any pci devices that show up as unclaimed?
> >
> > In a different box, I got this:
> >
> > none1@pci0:7:4:0: class=0x070002 card=0x000814a1 chip=0x000814a1
> > rev=0xb0 hdr=0x00
> > vendor = 'Systembase Co Ltd'
> > class = simple comms
> > subclass = UART
> > bar [10] = type I/O Port, range 32, base 0x1040, size 64, enabled
> > bar [14] = type I/O Port, range 32, base 0x1000, size 64, enabled
> >
>
> This is the one you want. You'll need to add vendor 14a1 device 8 to the
> puc tables. Do you need help with this? It will be a bit tricky because
> each of these defines several ports, I think.
>
> and:
> >
> > pcib7@pci0:6:0:0: class=0x060400 card=0x00000000 chip=0x10801b21
> > rev=0x04 hdr=0x01
> > vendor = 'ASMedia Technology Inc.'
> > device = 'ASM1083/1085 PCIe to PCI Bridge'
^^^^^^^^
> > class = bridge
> > subclass = PCI-PCI
> >
>
> This is something else.
I believe this is the PCI-PCI bridge that he clearly says
is on the board just a few lines below here.
>
>
> > The chips on the card are:
> >
> > ASMedia asm1083 b0bk4911b3 1543 (?)
^^^^^^^^
> > SystemBase SB16C1058PCI 1624
> >
> > It only detects four (or six?) serials...
> >
> > So I think I found a 'somehow' working setup and have to add stuff to
> > sys/dev/puc/pucdata.c to match it. Thanks for the pointer!
>
>
> That's right. Ask me if you need help. There's several different ways that
> hardware vendors slice and dice the UARTs, and there's no standard. Clock
> rate may be an issue too, since newer cards have faster baud clocks to
> support higher rates, but this means to get the right right you have to
> use a different divisor than the older 16550A typically needed. Luckily
> this is well supported.
I am also wondering if the reason he only saw 4 or 6 ports is that
some of them have been presented to the system in a way that they
look like standard uart0 and uart1, that is why I asked for the full
non verbose pciconf -lB output, it would clear some of that up.
--
Rod Grimes rgrimes@freebsd.org
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