svn commit: r191450 - in head/sys: conf powerpc/conf powerpc/include powerpc/mpc85xx powerpc/powerpc

[Marcel Moolenaar]

On Apr 24, 2009, at 4:38 AM, Rafal Jaworowski wrote:

>
> On 2009-04-24, at 05:51, Marcel Moolenaar wrote:
>
>> Author: marcel
>> Date: Fri Apr 24 03:51:11 2009
>> New Revision: 191450
>> URL: http://svn.freebsd.org/changeset/base/191450
>>
>> Log:
>> Add suppport for ISA and ISA interrupts to make the ATA
>> controller in the VIA southbridge functional in the CDS
>> (Configurable Development System) for MPC85XX.
>> The embedded USB controllers look operational but the
>> interrupt steering is still wrong.
>
> Hi Marcel,
> Great to see this. What is still missing around interrupts here, is  
> it only USB-related? Does ATA controller within the VIA bridge work  
> already?

Yes, the ATA works fine, interrupts and all.
The register interface of the USB controller
works, but no interrupts are happening. With
some wrong IRQ programming I got interrupt
storms, ended up calling the USB interrupt
handler all the time and *that* resulted in
a working USB stack :-)

In short: once we find out what's happening
to the (internal) interrupt steering of the
VIA southbridge, we should have USB as well.
I still assume we can get it to work...

The embedded I/O devices (COM1, LPT, etc) are
not working yet. I get all 0xff when reading
from the well-known I/O ports. I don't know
if that's ever going to work, because I presume
it needs a lot of configuration on the VIA.

-- 
Marcel Moolenaar
xcllnt at mac.com