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Fix panic on boot due to not all SATA chipsets having SSTATUS registeri

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resources set.
This commit is contained in:
Søren Schmidt 2006-01-21 17:38:10 +00:00
parent 5f35685cc2
commit 669367a9a1
1 changed files with 3 additions and 3 deletions
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6
sys/dev/ata/ata-chipset.c
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@ -339,15 +339,15 @@ ata_sata_setmode(device_t dev, int mode)
if (atadev->param.satacapabilities != 0x0000 &&
atadev->param.satacapabilities != 0xffff) {
struct ata_channel *ch = device_get_softc(device_get_parent(dev));
int status;
/* on some drives we need to set the transfer mode */
ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
ata_limit_mode(dev, mode, ATA_UDMA6));
/* query SATA STATUS for the speed */
status = ATA_IDX_INL(ch, ATA_SSTATUS);
if ((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN2)
if (ch->r_io[ATA_SSTATUS].res &&
((ATA_IDX_INL(ch, ATA_SSTATUS) & ATA_SS_CONWELL_MASK) ==
ATA_SS_CONWELL_GEN2))
atadev->mode = ATA_SA300;
else
atadev->mode = ATA_SA150;