static int vt6420_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
{
const struct ata_port_info *ppi[] = { &vt6420_port_info, NULL };
struct ata_host *host;
int rc;
rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
*r_host = host;
rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME);
if (rc) {
dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n");
return rc;
}
host->ports[0]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 0);
host->ports[1]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 1);
return 0;
}
static int vt8251_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
{
const struct ata_port_info *ppi[] = { &vt8251_port_info, NULL };
struct ata_host *host;
int i, rc;
rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
*r_host = host;
rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME);
if (rc) {
dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n");
return rc;
}
/* 8251 hosts four sata ports as M/S of the two channels */
for (i = 0; i < host->n_ports; i++)
ata_slave_link_init(host->ports[i]);
return 0;
}
static int sis_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct ata_port_info pi = sis_port_info;
const struct ata_port_info *ppi[] = { &pi, &pi };
struct ata_host *host;
u32 genctl, val;
u8 pmr;
u8 port2_start = 0x20;
int i, rc;
ata_print_version_once(&pdev->dev, DRV_VERSION);
rc = pcim_enable_device(pdev);
if (rc)
return rc;
/* check and see if the SCRs are in IO space or PCI cfg space */
pci_read_config_dword(pdev, SIS_GENCTL, &genctl);
if ((genctl & GENCTL_IOMAPPED_SCR) == 0)
pi.flags |= SIS_FLAG_CFGSCR;
/* if hardware thinks SCRs are in IO space, but there are
* no IO resources assigned, change to PCI cfg space.
*/
if ((!(pi.flags & SIS_FLAG_CFGSCR)) &&
((pci_resource_start(pdev, SIS_SCR_PCI_BAR) == 0) ||
(pci_resource_len(pdev, SIS_SCR_PCI_BAR) < 128))) {
genctl &= ~GENCTL_IOMAPPED_SCR;
pci_write_config_dword(pdev, SIS_GENCTL, genctl);
pi.flags |= SIS_FLAG_CFGSCR;
}
pci_read_config_byte(pdev, SIS_PMR, &pmr);
switch (ent->device) {
case 0x0180:
case 0x0181:
/* The PATA-handling is provided by pata_sis */
switch (pmr & 0x30) {
case 0x10:
ppi[1] = &sis_info133_for_sata;
break;
case 0x30:
ppi[0] = &sis_info133_for_sata;
break;
}
if ((pmr & SIS_PMR_COMBINED) == 0) {
dev_info(&pdev->dev,
"Detected SiS 180/181/964 chipset in SATA mode\n");
port2_start = 64;
} else {
dev_info(&pdev->dev,
"Detected SiS 180/181 chipset in combined mode\n");
port2_start = 0;
pi.flags |= ATA_FLAG_SLAVE_POSS;
}
break;
case 0x0182:
case 0x0183:
pci_read_config_dword(pdev, 0x6C, &val);
if (val & (1L << 31)) {
dev_info(&pdev->dev, "Detected SiS 182/965 chipset\n");
pi.flags |= ATA_FLAG_SLAVE_POSS;
} else {
dev_info(&pdev->dev, "Detected SiS 182/965L chipset\n");
}
break;
case 0x1182:
dev_info(&pdev->dev,
"Detected SiS 1182/966/680 SATA controller\n");
pi.flags |= ATA_FLAG_SLAVE_POSS;
break;
case 0x1183:
dev_info(&pdev->dev,
"Detected SiS 1183/966/966L/968/680 controller in PATA mode\n");
ppi[0] = &sis_info133_for_sata;
ppi[1] = &sis_info133_for_sata;
break;
}
rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
for (i = 0; i < 2; i++) {
struct ata_port *ap = host->ports[i];
if (ap->flags & ATA_FLAG_SATA &&
ap->flags & ATA_FLAG_SLAVE_POSS) {
rc = ata_slave_link_init(ap);
if (rc)
return rc;
}
}
if (!(pi.flags & SIS_FLAG_CFGSCR)) {
void __iomem *mmio;
rc = pcim_iomap_regions(pdev, 1 << SIS_SCR_PCI_BAR, DRV_NAME);
if (rc)
return rc;
mmio = host->iomap[SIS_SCR_PCI_BAR];
host->ports[0]->ioaddr.scr_addr = mmio;
host->ports[1]->ioaddr.scr_addr = mmio + port2_start;
}
pci_set_master(pdev);
pci_intx(pdev, 1);
return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &sis_sht);
}