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Add a reset of the AHCI machinery to the ICH6/ICH7 support.

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This should fix the missed devices on some systems.
This commit is contained in:
Søren Schmidt 2006-02-13 13:47:58 +00:00
parent 196b6a193e
commit 2ca38c74df
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=155601
1 changed files with 12 additions and 0 deletions
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12
sys/dev/ata/ata-chipset.c
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@ -1658,6 +1658,18 @@ ata_intel_chipinit(device_t dev)
RF_ACTIVE))) {
/* is AHCI or RAID mode enabled in BIOS ? */
if (pci_read_config(dev, 0x90, 1) & 0xc0) {
/* reset AHCI controller */
ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC,
ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) | ATA_AHCI_GHC_HR);
DELAY(1000000);
if (ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) & ATA_AHCI_GHC_HR) {
bus_release_resource(dev, ctlr->r_type2,
ctlr->r_rid2, ctlr->r_res2);
device_printf(dev, "AHCI controller reset failure\n");
return ENXIO;
}
/* enable AHCI mode */
ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC, ATA_AHCI_GHC_AE);