diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2011-10-24 01:11:16 +1100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2011-12-10 19:52:46 +0100 |
| commit | 8d9f014ad16711d79c8a575f2d3d009d2a16c7b7 (patch) | |
| tree | 6bd8602d0fcada17b5e75af3b16c1be01e55f191 /arch/m68k/mac/macints.c | |
| parent | ed04c97d5187c2d606a8fee0ec9ba172942ee508 (diff) | |
m68k/mac: enable via_alt_mapping on performa 580
Enable via_alt_mapping on the Performa 588 and tidy up related documentation.
I'm betting that remapped IRQs work just fine on the Performa 580 series since it works on the LC 630 and the logic board part numbers are reputedly the same.
And the consensus seems to be that the Mac TV is essentially a Performa 550, not dissimilar to the Performa 520, so set the via_type accordingly.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/mac/macints.c')
| -rw-r--r-- | arch/m68k/mac/macints.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c index 6c9ad9bbcc96..41dd164aac27 100644 --- a/arch/m68k/mac/macints.c +++ b/arch/m68k/mac/macints.c @@ -42,6 +42,18 @@ * * 6 - off switch (?) * + * Machines with Quadra-like VIA hardware, except PSC and PMU machines, support + * an alternate interrupt mapping, as used by A/UX. It spreads ethernet and + * sound out to their own autovector IRQs and gives VIA1 a higher priority: + * + * 1 - unused (?) + * + * 3 - on-board SONIC + * + * 5 - Apple Sound Chip (ASC) + * + * 6 - VIA1 + * * For OSS Macintoshes (IIfx only at this point): * * 3 - Nubus interrupt |