Subject: Re: Adaptec 1480 Cardbus not working on macppc
To: None <email@example.com>
From: Izumi Tsutsui <firstname.lastname@example.org>
Date: 10/21/2000 02:24:25
> On Fri, Oct 20, 2000 at 12:52:36AM -0400, Michael Wolfson wrote:
> > I tried a kernel with ahc enabled (as of a week ago). Here's what the
> > kernel reported:
> > ahc0 at cardbus0 dev 0 function 0: Adaptec ADP-1480 SCSI
> > ahc0: interrupting at 58
> > ahc0: CardBus device requires an SEEPROM
> It's not working quite properly on PCs, either. I need to sit down
> and fix it. It wasn't quite working right, then the ahc driver was
> totally revamped, and so now I'm sure it's broken...
I take a look at sys/dev/aic/aic7xxx_seeprom.c,
and it smells there are some endiannness problems.
In line 128 in aic7xxx_seeprom.c:
> have_seeprom = read_seeprom(&sd, (u_int16_t *)&sc,
> start_addr, sizeof(sc)/2);
It looks a cast from sc (== struct seeprom_config) to (u_int16_t *)
has endian dependency.
Many drivers which have 93cx6 EEPROM access code in FreeBSD
have the same problem...