Author: mav
Date: Mon Nov 23 18:07:28 2009
New Revision: 199717
URL: http://svn.freebsd.org/changeset/base/199717
Log:
Do not attach JMicrons with single PCI function. They are not working as
AHCI for some reason, even when declaring so. Let atajmicron configure
them for us and provide PATA support.
Modified:
head/sys/dev/ahci/ahci.c
Modified: head/sys/dev/ahci/ahci.c
==============================================================================
--- head/sys/dev/ahci/ahci.c Mon Nov 23 17:54:57 2009 (r199716)
+++ head/sys/dev/ahci/ahci.c Mon Nov 23 18:07:28 2009 (r199717)
@@ -254,6 +254,10 @@ ahci_probe(device_t dev)
for (i = 0; ahci_ids[i].id != 0; i++) {
if (ahci_ids[i].id == devid &&
(valid || !(ahci_ids[i].quirks & AHCI_Q_NOFORCE))) {
+ /* Do not attach JMicrons with single PCI function. */
+ if (pci_get_vendor(dev) == 0x197b &&
+ (pci_read_config(dev, 0xdf, 1) & 0x40) == 0)
+ return (ENXIO);
snprintf(buf, sizeof(buf), "%s AHCI SATA controller",
ahci_ids[i].name);
device_set_desc_copy(dev, buf);
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