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Skip BAR(5) usage for SATA registers access on ICH8M Apples, because for

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some reason it causes system lock up. Linux does the same.

MFC after:	1 week
This commit is contained in:
mav 2011-06-14 20:30:15 +00:00
parent a11bba2ac0
commit af6faca77e
1 changed files with 3 additions and 1 deletions
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4
sys/dev/ata/chipsets/ata-intel.c
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@ -288,7 +288,9 @@ ata_intel_chipinit(device_t dev)
ATA_OUTL(ctlr->r_res2, 0x0C,
ATA_INL(ctlr->r_res2, 0x0C) | 0xf);
}
} else {
/* Skip BAR(5) on ICH8M Apples, system locks up on access. */
} else if (ctlr->chip->chipid != ATA_I82801HBM_S1 ||
pci_get_subvendor(dev) != 0x106b) {
ctlr->r_type2 = SYS_RES_IOPORT;
ctlr->r_rid2 = PCIR_BAR(5);
ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,