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Wait up to 1S for the TFD data to signal un-busy before fetching the signature.

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This at least helps a few slow devices out there.

Submitted by:	Andrey V. Elsukov
This commit is contained in:
Søren Schmidt 2008-06-11 08:48:25 +00:00
parent 1f22fabdfb
commit 81b910389d
1 changed files with 3 additions and 3 deletions
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6
sys/dev/ata/ata-chipset.c
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@ -1059,10 +1059,10 @@ ata_ahci_softreset(device_t dev, int port)
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct ata_channel *ch = device_get_softc(dev);
int offset = ch->unit << 7;
int timeout = 0;
#ifdef AHCI_PM
struct ata_ahci_cmd_tab *ctp =
(struct ata_ahci_cmd_tab *)(ch->dma.work + ATA_AHCI_CT_OFFSET);
int timeout = 0;
/* kick controller into sane state if needed */
ata_ahci_restart(dev);
@ -1091,7 +1091,7 @@ ata_ahci_softreset(device_t dev, int port)
ata_udelay(150000);
timeout = 0;
#endif
do {
DELAY(1000);
if (timeout++ > 1000) {
@ -1101,7 +1101,7 @@ ata_ahci_softreset(device_t dev, int port)
} while (ATA_INL(ctlr->r_res2, ATA_AHCI_P_TFD + offset) & ATA_S_BUSY);
if (bootverbose)
device_printf(dev, "BUSY wait time=%dms\n", timeout);
#endif
return ATA_INL(ctlr->r_res2, ATA_AHCI_P_SIG + offset);
}