[libata] ata_piix: Enable parallel scan
This patch turns on parallel scanning for the ata_piix driver. This driver is used on most netbooks (no AHCI for cheap storage it seems). The scan is the dominating time factor in the kernel boot for these devices; with this flag it gets cut in half for the device I used for testing (eeepc). Alan took a look at the driver source and concluded that it ought to be safe to do for this driver. Alan has also checked with the hardware team. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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@ -1589,6 +1589,7 @@ static int __devinit piix_init_one(struct pci_dev *pdev,
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host->ports[1]->mwdma_mask = 0;
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host->ports[1]->udma_mask = 0;
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}
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host->flags |= ATA_HOST_PARALLEL_SCAN;
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pci_set_master(pdev);
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return ata_pci_sff_activate_host(host, ata_sff_interrupt, &piix_sht);
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