Rafal,

I have my own little mirror of the Indy postscript documents
which is where my questions are coming from. ;)
Is there some other documentation about pbus? or perhaps
another architecture that has somthing similar with NetBSD
support?  I'd like to spend some time learning about
this and hopefully write the drivers in time, but I have
a long way to go.  Any pointers or help would be appreciated.

Robert
  rboehne AT gnu DOT org

Rafal Boni wrote:
> 
> In message <3D8AAD25.E9C392D@attbi.com>, you write:
> 
> -> Hello,
> ->
> -> Do I need to have a "pbus" device (and driver) as a child
> -> of hpc0 for mouse/keyboard drivers on an Indy?
> 
> Yes, and right now neither exists...
> 
> -> Would the kernel config look somthing like this?
> ->
> -> hpc0            at gio? addr 0x1fb80000
> -> # HPC devices
> -> pbus0           at hpc0 offset ?
> -> pckbc0         at pbus0 device ?
> 
> It would if those drivers existed 8-)
> 
> -> Also, what is the IOC2?
> 
> The IOC is the integrated I/O controller which contains the keyboard/mouse
> interface, serial interfaces, parallel interface, timers, an interrupt
> controller, power/volume control, ISDN glue, ...
> 
> Previous to the Indy (ie, on the Indigo2), most of the IOC components were
> discrete chips which were integrated for the Indy as a cost-reduction step.
> 
> See ftp://oss.sgi.com/pub/linux/mips/doc/indy/ioc.ps for more info... There's
> a bunch of other IP22 documentation there as well.
> 
> --rafal
> 
> ----
> Rafal Boni                                                     rafal@attbi.com
>   We are all worms.  But I do believe I am a glowworm.  -- Winston Churchill