On 27 Feb, Ronald G Minnich wrote:
> cirrusfb is fixed as of 2.4 release.
>
> This stuff is going to get fixed over time.
>
> I think I know how to think about this. Linux knows how to turn chipsets
> on. linux doesn't know mainboard details. So, linuxbios needs to fix
> things that are mainboard-specific, and linux does the rest.
>
> example: motherboard with both via vt82c686a south and a superio.
> Linuxbios has to know which pieces of which part to turn on, since the 686
> has some superio functions.
>
> example: motherboard with two superios. Linuxbios will probably have to
> know which pieces of which superios to turn on, since linux will not.
>
> So, I'm going to try to figure out an API for BOTH config tool AND C.
>
> Configtool might be something like
>
> superio ITD/it1235 serial, mouse
> superio via/vt82c686a flash, ide
>
> so I extend superio syntax to say what bits of the superio matter. Then I
> can generate code to call the right pieces.
>
> comments?
Sounds reasonable. However, your example is over simplified.
You need something more like:
superio ITD/it1235 serial pnpaddr=0x3f0 devaddr=0x2f8 irq=C
Note that the superio cares what irq pin it asserts and knows nothing
of what IRQ on the soutbridge it is connected to.
It gets worse when connecting the TI CardBus bridge. There are
multiple ways of hooking up the interrupts and the CardBus bridge and
southbridge must both be configured to agree on this and agree with the
traces on the circuit board. You can have either "normal" interrupt
lines and/or serial interrupts.
I'm still suspicous of being able to parameterize the whole thing but
if we can it would be good.
> ron
--
Tyson D Sawyer iRobot Corporation
Senior Systems Engineer Real World Interface Div.
[EMAIL PROTECTED] Robots for the Real World
603-532-6900 ext 206 http://www.irobot.com
