diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/ahci.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 779a2b0aadda..b14e7ef343f3 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -229,6 +229,9 @@ static void ahci_error_handler(struct ata_port *ap); static void ahci_vt8251_error_handler(struct ata_port *ap); static void ahci_post_internal_cmd(struct ata_queued_cmd *qc); static int ahci_port_resume(struct ata_port *ap); +static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl); +static void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag, + u32 opts); #ifdef CONFIG_PM static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg); static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); @@ -481,11 +484,17 @@ static inline int ahci_nr_ports(u32 cap) return (cap & 0x1f) + 1; } -static inline void __iomem *ahci_port_base(struct ata_port *ap) +static inline void __iomem *__ahci_port_base(struct ata_host *host, + unsigned int port_no) { - void __iomem *mmio = ap->host->iomap[AHCI_PCI_BAR]; + void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; - return mmio + 0x100 + (ap->port_no * 0x80); + return mmio + 0x100 + (port_no * 0x80); +} + +static inline void __iomem *ahci_port_base(struct ata_port *ap) +{ + return __ahci_port_base(ap->host, ap->port_no); } /** @@ -1750,14 +1759,18 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) host->private_data = hpriv; for (i = 0; i < host->n_ports; i++) { - if (hpriv->port_map & (1 << i)) { - struct ata_port *ap = host->ports[i]; - void __iomem *port_mmio = ahci_port_base(ap); + struct ata_port *ap = host->ports[i]; + void __iomem *port_mmio = ahci_port_base(ap); + /* standard SATA port setup */ + if (hpriv->port_map & (1 << i)) { ap->ioaddr.cmd_addr = port_mmio; ap->ioaddr.scr_addr = port_mmio + PORT_SCR; - } else - host->ports[i]->ops = &ata_dummy_port_ops; + } + + /* disabled/not-implemented port */ + else + ap->ops = &ata_dummy_port_ops; } /* initialize adapter */ |