diff options
author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2008-10-27 00:09:14 +0000 |
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committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2008-10-27 00:09:14 +0000 |
commit | f81b969763ed0fb47b7286275a04a203cf97c615 (patch) | |
tree | d343f81008575a2688dd043778e15dabe92ff3d6 | |
parent | 57432d8a84d76480c6a66af412a5c77f87818971 (diff) | |
download | FreeBSD-src-f81b969763ed0fb47b7286275a04a203cf97c615.zip FreeBSD-src-f81b969763ed0fb47b7286275a04a203cf97c615.tar.gz |
Bring Kauai ATA driver in line with Macio ATA by reading the PIO config reg
to set the initial PIO mode instead of assuming PIO4. There are still a few
nagging issues:
- There are some problems with 64 K DMA transfers waiting on lower level
changes.
- ATAPI DMA is broken on Marcel's Mac Mini because we need an ATA SELECT hook
propagated up to individual drivers for hardware without timing registers for
each ATA channel.
-rw-r--r-- | sys/powerpc/powermac/ata_kauai.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/sys/powerpc/powermac/ata_kauai.c b/sys/powerpc/powermac/ata_kauai.c index 53fc676..415d0fb 100644 --- a/sys/powerpc/powermac/ata_kauai.c +++ b/sys/powerpc/powermac/ata_kauai.c @@ -292,16 +292,12 @@ ata_kauai_attach(device_t dev) #endif /* Set up initial mode */ - if (sc->shasta) - sc->pioconf[0] = sc->pioconf[1] = pio_timing_shasta[4]; - else - sc->pioconf[0] = sc->pioconf[1] = pio_timing_kauai[4]; + sc->pioconf[0] = sc->pioconf[1] = + bus_read_4(sc->sc_memr, PIO_CONFIG_REG) & 0x0f000fff; sc->udmaconf[0] = sc->udmaconf[1] = 0; sc->wdmaconf[0] = sc->wdmaconf[1] = 0; - bus_write_4(sc->sc_memr, PIO_CONFIG_REG, sc->pioconf[0]); - /* Magic FCR value from Apple */ bus_write_4(sc->sc_memr, 0, 0x00000007); |