Re: map_isa_ioregs

Frank Wille wrote:
> Tim Rightnour wrote:
> 
> On 08.11.07 02:19:25 you wrote:
> 
>> Are you using a physical console?  It's possible I broke something in that
>> realm.  I do all my work via serial console.
> 
> Not even serial console works here. But I debugged the problem today:
> 
> First, when working with physical console, checking for device_type property
> "display" fails on the Pegasos. It is called "bootconsole". Additionally,
> when the pckbc driver is missing, cninit_kd() would just return, instead of
> falling back to the ofwbootcons.
> 
> Second, when using a serial terminal, the check for the name-property
> "serial" fails, which is "failsafe" here. IMHO this check is not needed at
> all, because it is a fallback to the ofwbootcons.

Yeah you should never, ever switch on the "name" property, it's absolutely
99.9% of the time purely informational.

As for the "display" node, if you have a VGA graphics card in there, but
it's in text mode on boot (that means, everyone with a public firmware,
and everyone on Efika who didn't setenv fb-mode) it usually presents itself
as device_type "serial" - it isn't serial, but it *is* an ANSI terminal
emulator so ANSI terminal code for a serial port (as long as you're
outputting using firmware read/write methods) works.

In framebuffer mode, it really does read as display. You can confirm that
the display is a graphics card by the simple fact that it includes a bunch
of PCI properties which according to the PCI standard (class-code etc.)
will remind you that this is a PCI card of a certain programming
interface..

I'm curious about the "bootconsole" thing though. I've never seen that?

-- 
Matt Sealey <[email protected]>
Genesi, Manager, Developer Relations