Re: What ISA hardware is integrated into m68k bridges

Hi Paul,

On Sun, May 20, 2012 at 6:31 PM, Paul Gortmaker
<paul.gortmaker <at> windriver.com> wrote:
> A discussion is underway with respect to the future of the various ISA
> drivers[1], and Alan suggested checking with the m68k folks:
>
>  Check with the M68K people however. 3c501 won't matter to them but I'm
>  not sure which of the other chips ended up on Amiga ISA bridges. I know
>  NE2000 clones did.
>
> I know you've currently got that "almost ne2k" driver that runs IRQ-less.  Are
> there other "ISA-like" onboard devices in the M68k harware scope that rely on
> existing (x86) ISA drivers?

IIRC, the only m68k machines (supported by Linux) with ISA slots are:
  - Q40/Q60, probably used with NE2000 cards only,
  - Various Amiga bridgeboards, none of which are supported,
  - Apollo DN, used with a 3Com 3c505 ISA Ethernet card (preferably the
    version with an Apollo boot ROM), but the (changes to the existing) driver
    never entered mainline, witnessed by the orphan APOLLO_ELPLUS config
    option we removed a few years ago.

Apart from that, several "ISA" (Ethernet) chips were/are used, as
typically that's
the simplest solution to add peripheral support to a CPU local bus using a
minimum of glue logic.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert <at> linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds