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MFC r199717:

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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.
This commit is contained in:
mav 2009-11-26 08:29:02 +00:00
parent 46bcf1b57f
commit 9b257cc53d
1 changed files with 4 additions and 0 deletions
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4
sys/dev/ahci/ahci.c
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@ -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);