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From: John Baldwin <jhb@freebsd.org>
To: Roman Divacky <rdivacky@freebsd.org>
Date: Thu, 4 Dec 2008 17:45:14 -0500
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Cc: freebsd-current@freebsd.org
Subject: Re: atrtc0: Warnings about mappings of I/O and interrupt
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On Thursday 04 December 2008 05:04:38 pm Roman Divacky wrote:
> On Thu, Dec 04, 2008 at 02:24:13PM -0500, John Baldwin wrote:
> > On Thursday 20 November 2008 12:13:25 pm Roman Divacky wrote:
> > > hi
> > > 
> > > I upgraded from roughly 10 days old -CURRENT to this:
> > > 
> > > FreeBSD witten 8.0-CURRENT FreeBSD 8.0-CURRENT #55: Wed Nov 19 23:23:49 
CET 
> > 2008
> > > root@witten:/usr/obj/usr/src/sys/MYKERNEL  i386
> > > 
> > > and I am getting this at boot:
> > > 
> > > atrtc0: <AT Real Time Clock> at port 0x70 irq 8 on isa0
> > > atrtc0: Warning: Couldn't map I/O.
> > > atrtc0: Warning: Couldn't map Interrupt.
> > > 
> > > the booting itself works fine and I dont see any odd effects.
> > 
> > The driver is just a stub anyway.  Do you have any atrtc0 hints, and can 
you 
> > grab the output for the 'atrtc0' device from 'devinfo -r'?
> 
> witten ~# grep atrtc /boot/device.hints
> hint.atrtc.0.at="isa"
> hint.atrtc.0.port="0x70"
> hint.atrtc.0.irq="8"
> 
> (but that's the default I believe)
> 
> devinfo -r shows "empty" atrtc0 but:
> 
>   atrtc1
>         Interrupt request lines:
>             8
>         I/O ports:
>             0x70-0x71
> 
> any more info I can provide?

Hmmmm, that should have worked fine in that atrtc1 should have taken over 
the 'atrtc0' hints.  If you don't mind, can you add some debugging printfs to 
acpi_hint_device_unit() (maybe only do them if the 'name' parameter 
is "atrtc" to avoid clutter).

-- 
John Baldwin