X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fata%2Fahci.c;h=f6bbd52b1547d04e0c304d81ee411ac71c211c03;hb=cf48062658e7ab3bc55e10c65676c3c73c16f8bf;hp=3c06e457b4dc86929949e700292fd3149fff79fd;hpb=0f151e8b214c1df3f571020b849382933f2cdce7;p=linux-2.6-omap-h63xx.git diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 3c06e457b4d..f6bbd52b154 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -49,6 +49,10 @@ #define DRV_NAME "ahci" #define DRV_VERSION "3.0" +static int ahci_skip_host_reset; +module_param_named(skip_host_reset, ahci_skip_host_reset, int, 0444); +MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip)"); + static int ahci_enable_alpm(struct ata_port *ap, enum link_pm policy); static void ahci_disable_alpm(struct ata_port *ap); @@ -85,6 +89,7 @@ enum { board_ahci_ign_iferr = 2, board_ahci_sb600 = 3, board_ahci_mv = 4, + board_ahci_sb700 = 5, /* global controller registers */ HOST_CAP = 0x00, /* host capabilities */ @@ -185,6 +190,7 @@ enum { AHCI_HFLAG_NO_MSI = (1 << 5), /* no PCI MSI */ AHCI_HFLAG_NO_PMP = (1 << 6), /* no PMP */ AHCI_HFLAG_NO_HOTPLUG = (1 << 7), /* ignore PxSERR.DIAG.N */ + AHCI_HFLAG_SECT255 = (1 << 8), /* max 255 sectors */ /* ap->flags bits */ @@ -254,6 +260,7 @@ static void ahci_vt8251_error_handler(struct ata_port *ap); static void ahci_p5wdh_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 void ahci_dev_config(struct ata_device *dev); 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); @@ -293,6 +300,8 @@ static const struct ata_port_operations ahci_ops = { .check_altstatus = ahci_check_status, .dev_select = ata_noop_dev_select, + .dev_config = ahci_dev_config, + .tf_read = ahci_tf_read, .qc_defer = sata_pmp_qc_defer_cmd_switch, @@ -424,7 +433,8 @@ static const struct ata_port_info ahci_port_info[] = { /* board_ahci_sb600 */ { AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL | - AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_PMP), + AHCI_HFLAG_32BIT_ONLY | + AHCI_HFLAG_SECT255 | AHCI_HFLAG_NO_PMP), .flags = AHCI_FLAG_COMMON, .link_flags = AHCI_LFLAG_COMMON, .pio_mask = 0x1f, /* pio0-4 */ @@ -442,6 +452,16 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, + /* board_ahci_sb700 */ + { + AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL | + AHCI_HFLAG_NO_PMP), + .flags = AHCI_FLAG_COMMON, + .link_flags = AHCI_LFLAG_COMMON, + .pio_mask = 0x1f, /* pio0-4 */ + .udma_mask = ATA_UDMA6, + .port_ops = &ahci_ops, + }, }; static const struct pci_device_id ahci_pci_tbl[] = { @@ -484,12 +504,12 @@ 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 SB700/800 */ - { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb600 }, /* ATI SB700/800 */ - { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb600 }, /* ATI SB700/800 */ - { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb600 }, /* ATI SB700/800 */ - { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb600 }, /* ATI SB700/800 */ - { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb600 }, /* ATI SB700/800 */ + { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */ + { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */ + { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */ + { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */ + { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */ + { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */ /* VIA */ { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */ @@ -552,6 +572,18 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci }, /* MCP79 */ + { PCI_VDEVICE(NVIDIA, 0x0bc8), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bc9), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bca), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bcb), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bcc), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bcd), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bce), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bcf), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bd0), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bd1), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bd2), board_ahci }, /* MCP7B */ + { PCI_VDEVICE(NVIDIA, 0x0bd3), board_ahci }, /* MCP7B */ /* SiS */ { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */ @@ -560,6 +592,7 @@ static const struct pci_device_id ahci_pci_tbl[] = { /* Marvell */ { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */ + { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */ /* Generic, PCI class code for AHCI */ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, @@ -634,6 +667,7 @@ static void ahci_save_initial_config(struct pci_dev *pdev, void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR]; u32 cap, port_map; int i; + int mv; /* make sure AHCI mode is enabled before accessing CAP */ ahci_enable_ahci(mmio); @@ -657,7 +691,7 @@ static void ahci_save_initial_config(struct pci_dev *pdev, cap &= ~HOST_CAP_NCQ; } - if ((cap && HOST_CAP_PMP) && (hpriv->flags & AHCI_HFLAG_NO_PMP)) { + if ((cap & HOST_CAP_PMP) && (hpriv->flags & AHCI_HFLAG_NO_PMP)) { dev_printk(KERN_INFO, &pdev->dev, "controller can't do PMP, turning off CAP_PMP\n"); cap &= ~HOST_CAP_PMP; @@ -669,12 +703,16 @@ static void ahci_save_initial_config(struct pci_dev *pdev, * presence register, as bit 4 (counting from 0) */ if (hpriv->flags & AHCI_HFLAG_MV_PATA) { + if (pdev->device == 0x6121) + mv = 0x3; + else + mv = 0xf; dev_printk(KERN_ERR, &pdev->dev, "MV_AHCI HACK: port_map %x -> %x\n", - hpriv->port_map, - hpriv->port_map & 0xf); + port_map, + port_map & mv); - port_map &= 0xf; + port_map &= mv; } /* cross check port_map and cap.n_ports */ @@ -1061,29 +1099,35 @@ static int ahci_reset_controller(struct ata_host *host) ahci_enable_ahci(mmio); /* global controller reset */ - tmp = readl(mmio + HOST_CTL); - if ((tmp & HOST_RESET) == 0) { - writel(tmp | HOST_RESET, mmio + HOST_CTL); - readl(mmio + HOST_CTL); /* flush */ - } + if (!ahci_skip_host_reset) { + tmp = readl(mmio + HOST_CTL); + if ((tmp & HOST_RESET) == 0) { + writel(tmp | HOST_RESET, mmio + HOST_CTL); + readl(mmio + HOST_CTL); /* flush */ + } - /* reset must complete within 1 second, or - * the hardware should be considered fried. - */ - ssleep(1); + /* reset must complete within 1 second, or + * the hardware should be considered fried. + */ + ssleep(1); - tmp = readl(mmio + HOST_CTL); - if (tmp & HOST_RESET) { - dev_printk(KERN_ERR, host->dev, - "controller reset failed (0x%x)\n", tmp); - return -EIO; - } + tmp = readl(mmio + HOST_CTL); + if (tmp & HOST_RESET) { + dev_printk(KERN_ERR, host->dev, + "controller reset failed (0x%x)\n", tmp); + return -EIO; + } - /* turn on AHCI mode */ - ahci_enable_ahci(mmio); + /* turn on AHCI mode */ + ahci_enable_ahci(mmio); - /* some registers might be cleared on reset. restore initial values */ - ahci_restore_initial_config(host); + /* Some registers might be cleared on reset. Restore + * initial values. + */ + ahci_restore_initial_config(host); + } else + dev_printk(KERN_INFO, host->dev, + "skipping global host reset\n"); if (pdev->vendor == PCI_VENDOR_ID_INTEL) { u16 tmp16; @@ -1135,9 +1179,14 @@ static void ahci_init_controller(struct ata_host *host) int i; void __iomem *port_mmio; u32 tmp; + int mv; if (hpriv->flags & AHCI_HFLAG_MV_PATA) { - port_mmio = __ahci_port_base(host, 4); + if (pdev->device == 0x6121) + mv = 2; + else + mv = 4; + port_mmio = __ahci_port_base(host, mv); writel(0, port_mmio + PORT_IRQ_MASK); @@ -1165,6 +1214,17 @@ static void ahci_init_controller(struct ata_host *host) VPRINTK("HOST_CTL 0x%x\n", tmp); } +static void ahci_dev_config(struct ata_device *dev) +{ + struct ahci_host_priv *hpriv = dev->link->ap->host->private_data; + + if (hpriv->flags & AHCI_HFLAG_SECT255) { + dev->max_sectors = 255; + ata_dev_printk(dev, KERN_INFO, + "SB600 AHCI: limiting to 255 sectors per cmd\n"); + } +} + static unsigned int ahci_dev_classify(struct ata_port *ap) { void __iomem *port_mmio = ahci_port_base(ap); @@ -1603,7 +1663,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat) u32 *unk = (u32 *)(pp->rx_fis + RX_FIS_UNK); active_ehi->err_mask |= AC_ERR_HSM; - active_ehi->action |= ATA_EH_SOFTRESET; + active_ehi->action |= ATA_EH_RESET; ata_ehi_push_desc(active_ehi, "unknown FIS %08x %08x %08x %08x" , unk[0], unk[1], unk[2], unk[3]); @@ -1611,19 +1671,19 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat) if (ap->nr_pmp_links && (irq_stat & PORT_IRQ_BAD_PMP)) { active_ehi->err_mask |= AC_ERR_HSM; - active_ehi->action |= ATA_EH_SOFTRESET; + active_ehi->action |= ATA_EH_RESET; ata_ehi_push_desc(active_ehi, "incorrect PMP"); } if (irq_stat & (PORT_IRQ_HBUS_ERR | PORT_IRQ_HBUS_DATA_ERR)) { host_ehi->err_mask |= AC_ERR_HOST_BUS; - host_ehi->action |= ATA_EH_SOFTRESET; + host_ehi->action |= ATA_EH_RESET; ata_ehi_push_desc(host_ehi, "host bus error"); } if (irq_stat & PORT_IRQ_IF_ERR) { host_ehi->err_mask |= AC_ERR_ATA_BUS; - host_ehi->action |= ATA_EH_SOFTRESET; + host_ehi->action |= ATA_EH_RESET; ata_ehi_push_desc(host_ehi, "interface fatal error"); } @@ -1711,7 +1771,7 @@ static void ahci_port_intr(struct ata_port *ap) /* while resetting, invalid completions are expected */ if (unlikely(rc < 0 && !resetting)) { ehi->err_mask |= AC_ERR_HSM; - ehi->action |= ATA_EH_SOFTRESET; + ehi->action |= ATA_EH_RESET; ata_port_freeze(ap); } } @@ -1932,7 +1992,7 @@ static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; u32 ctl; - if (mesg.event == PM_EVENT_SUSPEND) { + if (mesg.event & PM_EVENT_SLEEP) { /* AHCI spec rev1.1 section 8.3.3: * Software must disable interrupts prior to requesting a * transition of the HBA to D3 state. @@ -2206,7 +2266,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; - rc = pcim_iomap_regions(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); + /* AHCI controllers often implement SFF compatible interface. + * Grab all PCI BARs just in case. + */ + rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); if (rc == -EBUSY) pcim_pin_device(pdev); if (rc)