[parisc-linux] PALinux on HP9000/735-125

[Thomas Bogendoerfer]

On Tue, Jan 08, 2002 at 12:34:33AM +0100, Daniel Engstrom wrote:
> I think that the PDC only initialize a card that is used for booting. I also
> think that Matthew Wilcox had a HP 100MB Ethernet interface up and running a 
> while ago. (The PDC might have initialzed that board when it searched for boot
> devices.)

hmm, I had a quick glance over the hp100.c and it looks like the driver
does the eisa config itself. So that would explain why it worked.

> Another problem with EISA boards currently, is that most of them are
>  bus-masters and the current EISA support lacks the busmatering and DMA bits.

that's why I was looking into the problem. I wanted to improve EISA support.

> I have started an eeprom driver a while ago, and I started to try to decode
> the EISA parts of the EEPROM. I have about half of it figured out I think,
> but the other half seems to be somewhat hard.

that's a start. Do you have a patch for your eeprom driver somewhere ?

> I looked a doing a parser for the CFG files, but it turns out that there are a
> lot of options and stuff. Even binary code overlays that are supposed to be
> loaded and executed by the ECU (EISA configuration utility) exists. Adaptec 
> uses one for the AHA-274x. Not suppoered by HPUX, though.

I saw that overlay thing also for the AHA-1742. I just removed it from the
.cfg to get eisa_config running with it.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                 [ Alexander Viro on linux-kernel ]