Author: mav
Date: Tue Jun 14 20:30:15 2011
New Revision: 223097
URL: http://svn.freebsd.org/changeset/base/223097
Log:
Skip BAR(5) usage for SATA registers access on ICH8M Apples, because for
some reason it causes system lock up. Linux does the same.
MFC after: 1 week
Modified:
head/sys/dev/ata/chipsets/ata-intel.c
Modified: head/sys/dev/ata/chipsets/ata-intel.c
==============================================================================
--- head/sys/dev/ata/chipsets/ata-intel.c Tue Jun 14 20:04:23 2011
(r223096)
+++ head/sys/dev/ata/chipsets/ata-intel.c Tue Jun 14 20:30:15 2011
(r223097)
@@ -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,
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