diff options
Diffstat (limited to 'drivers/ata/ahci.c')
| -rw-r--r-- | drivers/ata/ahci.c | 49 |
1 files changed, 29 insertions, 20 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 34c5534ed64c..7baeaffefe7a 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -46,7 +46,7 @@ #include <linux/libata.h> #define DRV_NAME "ahci" -#define DRV_VERSION "2.1" +#define DRV_VERSION "2.2" enum { @@ -170,10 +170,12 @@ enum { AHCI_FLAG_IGN_IRQ_IF_ERR = (1 << 25), /* ignore IRQ_IF_ERR */ AHCI_FLAG_HONOR_PI = (1 << 26), /* honor PORTS_IMPL */ AHCI_FLAG_IGN_SERR_INTERNAL = (1 << 27), /* ignore SERR_INTERNAL */ + AHCI_FLAG_32BIT_ONLY = (1 << 28), /* force 32bit */ AHCI_FLAG_COMMON = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | - ATA_FLAG_SKIP_D2H_BSY, + ATA_FLAG_SKIP_D2H_BSY | + ATA_FLAG_ACPI_SATA, }; struct ahci_cmd_hdr { @@ -250,10 +252,6 @@ static struct scsi_host_template ahci_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, -#ifdef CONFIG_PM - .suspend = ata_scsi_device_suspend, - .resume = ata_scsi_device_resume, -#endif }; static const struct ata_port_operations ahci_ops = { @@ -357,7 +355,8 @@ static const struct ata_port_info ahci_port_info[] = { /* board_ahci_sb600 */ { .flags = AHCI_FLAG_COMMON | - AHCI_FLAG_IGN_SERR_INTERNAL, + AHCI_FLAG_IGN_SERR_INTERNAL | + AHCI_FLAG_32BIT_ONLY, .pio_mask = 0x1f, /* pio0-4 */ .udma_mask = 0x7f, /* udma0-6 ; FIXME */ .port_ops = &ahci_ops, @@ -400,6 +399,7 @@ static const struct pci_device_id ahci_pci_tbl[] = { /* ATI */ { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */ + { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb600 }, /* ATI SB700 */ /* VIA */ { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */ @@ -494,6 +494,13 @@ static void ahci_save_initial_config(struct pci_dev *pdev, hpriv->saved_cap = cap = readl(mmio + HOST_CAP); hpriv->saved_port_map = port_map = readl(mmio + HOST_PORTS_IMPL); + /* some chips lie about 64bit support */ + if ((cap & HOST_CAP_64) && (pi->flags & AHCI_FLAG_32BIT_ONLY)) { + dev_printk(KERN_INFO, &pdev->dev, + "controller can't do 64bit DMA, forcing 32bit\n"); + cap &= ~HOST_CAP_64; + } + /* fixup zero port_map */ if (!port_map) { port_map = (1 << ahci_nr_ports(hpriv->cap)) - 1; @@ -874,7 +881,8 @@ static int ahci_clo(struct ata_port *ap) return 0; } -static int ahci_softreset(struct ata_port *ap, unsigned int *class) +static int ahci_softreset(struct ata_port *ap, unsigned int *class, + unsigned long deadline) { struct ahci_port_priv *pp = ap->private_data; void __iomem *port_mmio = ahci_port_base(ap); @@ -959,15 +967,13 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class) */ msleep(150); - *class = ATA_DEV_NONE; - if (ata_port_online(ap)) { - if (ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT)) { - rc = -EIO; - reason = "device not ready"; - goto fail; - } - *class = ahci_dev_classify(ap); + rc = ata_wait_ready(ap, deadline); + /* link occupied, -ENODEV too is an error */ + if (rc) { + reason = "device not ready"; + goto fail; } + *class = ahci_dev_classify(ap); DPRINTK("EXIT, class=%u\n", *class); return 0; @@ -979,7 +985,8 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class) return rc; } -static int ahci_hardreset(struct ata_port *ap, unsigned int *class) +static int ahci_hardreset(struct ata_port *ap, unsigned int *class, + unsigned long deadline) { struct ahci_port_priv *pp = ap->private_data; u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG; @@ -995,7 +1002,7 @@ static int ahci_hardreset(struct ata_port *ap, unsigned int *class) tf.command = 0x80; ata_tf_to_fis(&tf, d2h_fis, 0); - rc = sata_std_hardreset(ap, class); + rc = sata_std_hardreset(ap, class, deadline); ahci_start_engine(ap); @@ -1008,7 +1015,8 @@ static int ahci_hardreset(struct ata_port *ap, unsigned int *class) return rc; } -static int ahci_vt8251_hardreset(struct ata_port *ap, unsigned int *class) +static int ahci_vt8251_hardreset(struct ata_port *ap, unsigned int *class, + unsigned long deadline) { int rc; @@ -1016,7 +1024,8 @@ static int ahci_vt8251_hardreset(struct ata_port *ap, unsigned int *class) ahci_stop_engine(ap); - rc = sata_port_hardreset(ap, sata_ehc_deb_timing(&ap->eh_context)); + rc = sata_port_hardreset(ap, sata_ehc_deb_timing(&ap->eh_context), + deadline); /* vt8251 needs SError cleared for the port to operate */ ahci_scr_write(ap, SCR_ERROR, ahci_scr_read(ap, SCR_ERROR)); |