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| author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2009-03-25 03:42:49 +0000 |
|---|---|---|
| committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2009-03-25 03:42:49 +0000 |
| commit | e4ac427700c0a1d558e3fcefcbb4e5d7d478a6c7 (patch) | |
| tree | 1dc5d5264da4cf6495d9da7967e31ae6eafbd974 /sys/powerpc/powermac/ata_macio.c | |
| parent | 185450a1c57199eb6a88ee1ee9a61568064a66ad (diff) | |
| download | FreeBSD-src-e4ac427700c0a1d558e3fcefcbb4e5d7d478a6c7.zip FreeBSD-src-e4ac427700c0a1d558e3fcefcbb4e5d7d478a6c7.tar.gz | |
Disable ATA DMA for ATAPI devices for now. Apparently, certain revisions
of this controller, in combination with certain ATAPI devices and phases
of the moon, will cause DMA operations for ATAPI to fail.
Diffstat (limited to 'sys/powerpc/powermac/ata_macio.c')
| -rw-r--r-- | sys/powerpc/powermac/ata_macio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/powerpc/powermac/ata_macio.c b/sys/powerpc/powermac/ata_macio.c index 482f76e..320e86e 100644 --- a/sys/powerpc/powermac/ata_macio.c +++ b/sys/powerpc/powermac/ata_macio.c @@ -259,6 +259,10 @@ ata_macio_setmode(device_t parent, device_t dev) mode = ata_limit_mode(dev, mode, sc->max_mode); + /* XXX Some controllers don't work correctly with ATAPI DMA */ + if (atadev->param.config & ATA_PROTO_ATAPI) + mode = ata_limit_mode(dev, mode, ATA_PIO_MAX); + if (ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode)) return; |
