diff options
Diffstat (limited to 'drivers/ata/sata_via.c')
| -rw-r--r-- | drivers/ata/sata_via.c | 453 |
1 files changed, 277 insertions, 176 deletions
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 0d03f44824f..47bf89464ce 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -1,7 +1,7 @@ /* * sata_via.c - VIA Serial ATA controllers * - * Maintained by: Jeff Garzik <jgarzik@pobox.com> + * Maintained by: Tejun Heo <tj@kernel.org> * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * @@ -36,19 +36,25 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> -#include <linux/init.h> #include <linux/blkdev.h> #include <linux/delay.h> #include <linux/device.h> +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> #include <scsi/scsi_host.h> #include <linux/libata.h> #define DRV_NAME "sata_via" -#define DRV_VERSION "2.3" +#define DRV_VERSION "2.6" +/* + * vt8251 is different from other sata controllers of VIA. It has two + * channels, each channel has both Master and Slave slot. + */ enum board_ids_enum { vt6420, vt6421, + vt8251, }; enum { @@ -68,22 +74,27 @@ enum { }; static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); -static int svia_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); -static int svia_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val); +static int svia_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); +static int svia_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); +static int vt8251_scr_read(struct ata_link *link, unsigned int scr, u32 *val); +static int vt8251_scr_write(struct ata_link *link, unsigned int scr, u32 val); +static void svia_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); static void svia_noop_freeze(struct ata_port *ap); -static void vt6420_error_handler(struct ata_port *ap); +static int vt6420_prereset(struct ata_link *link, unsigned long deadline); +static void vt6420_bmdma_start(struct ata_queued_cmd *qc); static int vt6421_pata_cable_detect(struct ata_port *ap); static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev); static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev); static const struct pci_device_id svia_pci_tbl[] = { { PCI_VDEVICE(VIA, 0x5337), vt6420 }, - { PCI_VDEVICE(VIA, 0x0591), vt6420 }, - { PCI_VDEVICE(VIA, 0x3149), vt6420 }, - { PCI_VDEVICE(VIA, 0x3249), vt6421 }, - { PCI_VDEVICE(VIA, 0x5287), vt6420 }, + { PCI_VDEVICE(VIA, 0x0591), vt6420 }, /* 2 sata chnls (Master) */ + { PCI_VDEVICE(VIA, 0x3149), vt6420 }, /* 2 sata chnls (Master) */ + { PCI_VDEVICE(VIA, 0x3249), vt6421 }, /* 2 sata chnls, 1 pata chnl */ { PCI_VDEVICE(VIA, 0x5372), vt6420 }, { PCI_VDEVICE(VIA, 0x7372), vt6420 }, + { PCI_VDEVICE(VIA, 0x5287), vt8251 }, /* 2 sata chnls (Master/Slave) */ + { PCI_VDEVICE(VIA, 0x9000), vt8251 }, { } /* terminate list */ }; @@ -92,7 +103,7 @@ static struct pci_driver svia_pci_driver = { .name = DRV_NAME, .id_table = svia_pci_tbl, .probe = svia_init_one, -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP .suspend = ata_pci_device_suspend, .resume = ata_pci_device_resume, #endif @@ -100,164 +111,201 @@ static struct pci_driver svia_pci_driver = { }; static struct scsi_host_template svia_sht = { - .module = THIS_MODULE, - .name = DRV_NAME, - .ioctl = ata_scsi_ioctl, - .queuecommand = ata_scsi_queuecmd, - .can_queue = ATA_DEF_QUEUE, - .this_id = ATA_SHT_THIS_ID, - .sg_tablesize = LIBATA_MAX_PRD, - .cmd_per_lun = ATA_SHT_CMD_PER_LUN, - .emulated = ATA_SHT_EMULATED, - .use_clustering = ATA_SHT_USE_CLUSTERING, - .proc_name = DRV_NAME, - .dma_boundary = ATA_DMA_BOUNDARY, - .slave_configure = ata_scsi_slave_config, - .slave_destroy = ata_scsi_slave_destroy, - .bios_param = ata_std_bios_param, + ATA_BMDMA_SHT(DRV_NAME), }; -static const struct ata_port_operations vt6420_sata_ops = { - .tf_load = ata_tf_load, - .tf_read = ata_tf_read, - .check_status = ata_check_status, - .exec_command = ata_exec_command, - .dev_select = ata_std_dev_select, - - .bmdma_setup = ata_bmdma_setup, - .bmdma_start = ata_bmdma_start, - .bmdma_stop = ata_bmdma_stop, - .bmdma_status = ata_bmdma_status, - - .qc_prep = ata_qc_prep, - .qc_issue = ata_qc_issue_prot, - .data_xfer = ata_data_xfer, +static struct ata_port_operations svia_base_ops = { + .inherits = &ata_bmdma_port_ops, + .sff_tf_load = svia_tf_load, +}; +static struct ata_port_operations vt6420_sata_ops = { + .inherits = &svia_base_ops, .freeze = svia_noop_freeze, - .thaw = ata_bmdma_thaw, - .error_handler = vt6420_error_handler, - .post_internal_cmd = ata_bmdma_post_internal_cmd, - - .irq_clear = ata_bmdma_irq_clear, - .irq_on = ata_irq_on, - - .port_start = ata_port_start, + .prereset = vt6420_prereset, + .bmdma_start = vt6420_bmdma_start, }; -static const struct ata_port_operations vt6421_pata_ops = { +static struct ata_port_operations vt6421_pata_ops = { + .inherits = &svia_base_ops, + .cable_detect = vt6421_pata_cable_detect, .set_piomode = vt6421_set_pio_mode, .set_dmamode = vt6421_set_dma_mode, - - .tf_load = ata_tf_load, - .tf_read = ata_tf_read, - .check_status = ata_check_status, - .exec_command = ata_exec_command, - .dev_select = ata_std_dev_select, - - .bmdma_setup = ata_bmdma_setup, - .bmdma_start = ata_bmdma_start, - .bmdma_stop = ata_bmdma_stop, - .bmdma_status = ata_bmdma_status, - - .qc_prep = ata_qc_prep, - .qc_issue = ata_qc_issue_prot, - .data_xfer = ata_data_xfer, - - .freeze = ata_bmdma_freeze, - .thaw = ata_bmdma_thaw, - .error_handler = ata_bmdma_error_handler, - .post_internal_cmd = ata_bmdma_post_internal_cmd, - .cable_detect = vt6421_pata_cable_detect, - - .irq_clear = ata_bmdma_irq_clear, - .irq_on = ata_irq_on, - - .port_start = ata_port_start, }; -static const struct ata_port_operations vt6421_sata_ops = { - .tf_load = ata_tf_load, - .tf_read = ata_tf_read, - .check_status = ata_check_status, - .exec_command = ata_exec_command, - .dev_select = ata_std_dev_select, - - .bmdma_setup = ata_bmdma_setup, - .bmdma_start = ata_bmdma_start, - .bmdma_stop = ata_bmdma_stop, - .bmdma_status = ata_bmdma_status, - - .qc_prep = ata_qc_prep, - .qc_issue = ata_qc_issue_prot, - .data_xfer = ata_data_xfer, - - .freeze = ata_bmdma_freeze, - .thaw = ata_bmdma_thaw, - .error_handler = ata_bmdma_error_handler, - .post_internal_cmd = ata_bmdma_post_internal_cmd, - .cable_detect = ata_cable_sata, - - .irq_clear = ata_bmdma_irq_clear, - .irq_on = ata_irq_on, - +static struct ata_port_operations vt6421_sata_ops = { + .inherits = &svia_base_ops, .scr_read = svia_scr_read, .scr_write = svia_scr_write, +}; - .port_start = ata_port_start, +static struct ata_port_operations vt8251_ops = { + .inherits = &svia_base_ops, + .hardreset = sata_std_hardreset, + .scr_read = vt8251_scr_read, + .scr_write = vt8251_scr_write, }; static const struct ata_port_info vt6420_port_info = { - .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, - .pio_mask = 0x1f, - .mwdma_mask = 0x07, + .flags = ATA_FLAG_SATA, + .pio_mask = ATA_PIO4, + .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA6, .port_ops = &vt6420_sata_ops, }; static struct ata_port_info vt6421_sport_info = { - .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, - .pio_mask = 0x1f, - .mwdma_mask = 0x07, + .flags = ATA_FLAG_SATA, + .pio_mask = ATA_PIO4, + .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA6, .port_ops = &vt6421_sata_ops, }; static struct ata_port_info vt6421_pport_info = { - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY, - .pio_mask = 0x1f, - .mwdma_mask = 0, + .flags = ATA_FLAG_SLAVE_POSS, + .pio_mask = ATA_PIO4, + /* No MWDMA */ .udma_mask = ATA_UDMA6, .port_ops = &vt6421_pata_ops, }; +static struct ata_port_info vt8251_port_info = { + .flags = ATA_FLAG_SATA | ATA_FLAG_SLAVE_POSS, + .pio_mask = ATA_PIO4, + .mwdma_mask = ATA_MWDMA2, + .udma_mask = ATA_UDMA6, + .port_ops = &vt8251_ops, +}; + MODULE_AUTHOR("Jeff Garzik"); MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers"); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, svia_pci_tbl); MODULE_VERSION(DRV_VERSION); -static int svia_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) +static int svia_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) { if (sc_reg > SCR_CONTROL) return -EINVAL; - *val = ioread32(ap->ioaddr.scr_addr + (4 * sc_reg)); + *val = ioread32(link->ap->ioaddr.scr_addr + (4 * sc_reg)); return 0; } -static int svia_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) +static int svia_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) { if (sc_reg > SCR_CONTROL) return -EINVAL; - iowrite32(val, ap->ioaddr.scr_addr + (4 * sc_reg)); + iowrite32(val, link->ap->ioaddr.scr_addr + (4 * sc_reg)); return 0; } +static int vt8251_scr_read(struct ata_link *link, unsigned int scr, u32 *val) +{ + static const u8 ipm_tbl[] = { 1, 2, 6, 0 }; + struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); + int slot = 2 * link->ap->port_no + link->pmp; + u32 v = 0; + u8 raw; + + switch (scr) { + case SCR_STATUS: + pci_read_config_byte(pdev, 0xA0 + slot, &raw); + + /* read the DET field, bit0 and 1 of the config byte */ + v |= raw & 0x03; + + /* read the SPD field, bit4 of the configure byte */ + if (raw & (1 << 4)) + v |= 0x02 << 4; + else + v |= 0x01 << 4; + + /* read the IPM field, bit2 and 3 of the config byte */ + v |= ipm_tbl[(raw >> 2) & 0x3]; + break; + + case SCR_ERROR: + /* devices other than 5287 uses 0xA8 as base */ + WARN_ON(pdev->device != 0x5287); + pci_read_config_dword(pdev, 0xB0 + slot * 4, &v); + break; + + case SCR_CONTROL: + pci_read_config_byte(pdev, 0xA4 + slot, &raw); + + /* read the DET field, bit0 and bit1 */ + v |= ((raw & 0x02) << 1) | (raw & 0x01); + + /* read the IPM field, bit2 and bit3 */ + v |= ((raw >> 2) & 0x03) << 8; + break; + + default: + return -EINVAL; + } + + *val = v; + return 0; +} + +static int vt8251_scr_write(struct ata_link *link, unsigned int scr, u32 val) +{ + struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); + int slot = 2 * link->ap->port_no + link->pmp; + u32 v = 0; + + switch (scr) { + case SCR_ERROR: + /* devices other than 5287 uses 0xA8 as base */ + WARN_ON(pdev->device != 0x5287); + pci_write_config_dword(pdev, 0xB0 + slot * 4, val); + return 0; + + case SCR_CONTROL: + /* set the DET field */ + v |= ((val & 0x4) >> 1) | (val & 0x1); + + /* set the IPM field */ + v |= ((val >> 8) & 0x3) << 2; + + pci_write_config_byte(pdev, 0xA4 + slot, v); + return 0; + + default: + return -EINVAL; + } +} + +/** + * svia_tf_load - send taskfile registers to host controller + * @ap: Port to which output is sent + * @tf: ATA taskfile register set + * + * Outputs ATA taskfile to standard ATA host controller. + * + * This is to fix the internal bug of via chipsets, which will + * reset the device register after changing the IEN bit on ctl + * register. + */ +static void svia_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) +{ + struct ata_taskfile ttf; + + if (tf->ctl != ap->last_ctl) { + ttf = *tf; + ttf.flags |= ATA_TFLAG_DEVICE; + tf = &ttf; + } + ata_sff_tf_load(ap, tf); +} + static void svia_noop_freeze(struct ata_port *ap) { /* Some VIA controllers choke if ATA_NIEN is manipulated in * certain way. Leave it alone and just clear pending IRQ. */ - ata_chk_status(ap); + ap->ops->sff_check_status(ap); ata_bmdma_irq_clear(ap); } @@ -294,47 +342,52 @@ static int vt6420_prereset(struct ata_link *link, unsigned long deadline) goto skip_scr; /* Resume phy. This is the old SATA resume sequence */ - svia_scr_write(ap, SCR_CONTROL, 0x300); - svia_scr_read(ap, SCR_CONTROL, &scontrol); /* flush */ + svia_scr_write(link, SCR_CONTROL, 0x300); + svia_scr_read(link, SCR_CONTROL, &scontrol); /* flush */ /* wait for phy to become ready, if necessary */ do { - msleep(200); - svia_scr_read(ap, SCR_STATUS, &sstatus); + ata_msleep(link->ap, 200); + svia_scr_read(link, SCR_STATUS, &sstatus); if ((sstatus & 0xf) != 1) break; } while (time_before(jiffies, timeout)); /* open code sata_print_link_status() */ - svia_scr_read(ap, SCR_STATUS, &sstatus); - svia_scr_read(ap, SCR_CONTROL, &scontrol); + svia_scr_read(link, SCR_STATUS, &sstatus); + svia_scr_read(link, SCR_CONTROL, &scontrol); online = (sstatus & 0xf) == 0x3; - ata_port_printk(ap, KERN_INFO, - "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n", - online ? "up" : "down", sstatus, scontrol); + ata_port_info(ap, + "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n", + online ? "up" : "down", sstatus, scontrol); /* SStatus is read one more time */ - svia_scr_read(ap, SCR_STATUS, &sstatus); + svia_scr_read(link, SCR_STATUS, &sstatus); if (!online) { /* tell EH to bail */ - ehc->i.action &= ~ATA_EH_RESET_MASK; + ehc->i.action &= ~ATA_EH_RESET; return 0; } skip_scr: /* wait for !BSY */ - ata_wait_ready(ap, deadline); + ata_sff_wait_ready(link, deadline); return 0; } -static void vt6420_error_handler(struct ata_port *ap) +static void vt6420_bmdma_start(struct ata_queued_cmd *qc) { - ata_bmdma_drive_eh(ap, vt6420_prereset, ata_std_softreset, NULL, - ata_std_postreset); + struct ata_port *ap = qc->ap; + if ((qc->tf.command == ATA_CMD_PACKET) && + (qc->scsicmd->sc_data_direction == DMA_TO_DEVICE)) { + /* Prevents corruption on some ATAPI burners */ + ata_sff_pause(ap); + } + ata_bmdma_start(qc); } static int vt6421_pata_cable_detect(struct ata_port *ap) @@ -352,14 +405,16 @@ static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); static const u8 pio_bits[] = { 0xA8, 0x65, 0x65, 0x31, 0x20 }; - pci_write_config_byte(pdev, PATA_PIO_TIMING, pio_bits[adev->pio_mode - XFER_PIO_0]); + pci_write_config_byte(pdev, PATA_PIO_TIMING - adev->devno, + pio_bits[adev->pio_mode - XFER_PIO_0]); } static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 }; - pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->dma_mode - XFER_UDMA_0]); + pci_write_config_byte(pdev, PATA_UDMA_TIMING - adev->devno, + udma_bits[adev->dma_mode - XFER_UDMA_0]); } static const unsigned int svia_bar_sizes[] = { @@ -394,7 +449,7 @@ static void vt6421_init_addrs(struct ata_port *ap) ioaddr->bmdma_addr = bmdma_addr; ioaddr->scr_addr = vt6421_scr_addr(iomap[5], ap->port_no); - ata_std_ports(ioaddr); + ata_sff_std_ports(ioaddr); ata_port_pbar_desc(ap, ap->port_no, -1, "port"); ata_port_pbar_desc(ap, 4, ap->port_no * 8, "bmdma"); @@ -406,14 +461,14 @@ static int vt6420_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) struct ata_host *host; int rc; - rc = ata_pci_prepare_sff_host(pdev, ppi, &host); + 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"); + dev_err(&pdev->dev, "failed to iomap PCI BAR 5\n"); return rc; } @@ -432,14 +487,14 @@ static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) *r_host = host = ata_host_alloc_pinfo(&pdev->dev, ppi, ARRAY_SIZE(ppi)); if (!host) { - dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n"); + dev_err(&pdev->dev, "failed to allocate host\n"); return -ENOMEM; } rc = pcim_iomap_regions(pdev, 0x3f, DRV_NAME); if (rc) { - dev_printk(KERN_ERR, &pdev->dev, "failed to request/iomap " - "PCI BARs (errno=%d)\n", rc); + dev_err(&pdev->dev, "failed to request/iomap PCI BARs (errno=%d)\n", + rc); return rc; } host->iomap = pcim_iomap_table(pdev); @@ -457,20 +512,43 @@ static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) return 0; } -static void svia_configure(struct pci_dev *pdev) +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_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 void svia_configure(struct pci_dev *pdev, int board_id) { u8 tmp8; pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8); - dev_printk(KERN_INFO, &pdev->dev, "routed to hard irq line %d\n", - (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f); + dev_info(&pdev->dev, "routed to hard irq line %d\n", + (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f); /* make sure SATA channels are enabled */ pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8); if ((tmp8 & ALL_PORTS) != ALL_PORTS) { - dev_printk(KERN_DEBUG, &pdev->dev, - "enabling SATA channels (0x%x)\n", - (int) tmp8); + dev_dbg(&pdev->dev, "enabling SATA channels (0x%x)\n", + (int)tmp8); tmp8 |= ALL_PORTS; pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8); } @@ -478,9 +556,8 @@ static void svia_configure(struct pci_dev *pdev) /* make sure interrupts for each channel sent to us */ pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8); if ((tmp8 & ALL_PORTS) != ALL_PORTS) { - dev_printk(KERN_DEBUG, &pdev->dev, - "enabling SATA channel interrupts (0x%x)\n", - (int) tmp8); + dev_dbg(&pdev->dev, "enabling SATA channel interrupts (0x%x)\n", + (int) tmp8); tmp8 |= ALL_PORTS; pci_write_config_byte(pdev, SATA_INT_GATE, tmp8); } @@ -488,39 +565,65 @@ static void svia_configure(struct pci_dev *pdev) /* make sure native mode is enabled */ pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8); if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) { - dev_printk(KERN_DEBUG, &pdev->dev, - "enabling SATA channel native mode (0x%x)\n", - (int) tmp8); + dev_dbg(&pdev->dev, + "enabling SATA channel native mode (0x%x)\n", + (int) tmp8); tmp8 |= NATIVE_MODE_ALL; pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8); } + + /* + * vt6420/1 has problems talking to some drives. The following + * is the fix from Joseph Chan <JosephChan@via.com.tw>. + * + * When host issues HOLD, device may send up to 20DW of data + * before acknowledging it with HOLDA and the host should be + * able to buffer them in FIFO. Unfortunately, some WD drives + * send up to 40DW before acknowledging HOLD and, in the + * default configuration, this ends up overflowing vt6421's + * FIFO, making the controller abort the transaction with + * R_ERR. + * + * Rx52[2] is the internal 128DW FIFO Flow control watermark + * adjusting mechanism enable bit and the default value 0 + * means host will issue HOLD to device when the left FIFO + * size goes below 32DW. Setting it to 1 makes the watermark + * 64DW. + * + * https://bugzilla.kernel.org/show_bug.cgi?id=15173 + * http://article.gmane.org/gmane.linux.ide/46352 + * http://thread.gmane.org/gmane.linux.kernel/1062139 + */ + if (board_id == vt6420 || board_id == vt6421) { + pci_read_config_byte(pdev, 0x52, &tmp8); + tmp8 |= 1 << 2; + pci_write_config_byte(pdev, 0x52, tmp8); + } } static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { - static int printed_version; unsigned int i; int rc; - struct ata_host *host; + struct ata_host *host = NULL; int board_id = (int) ent->driver_data; const unsigned *bar_sizes; - if (!printed_version++) - dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); + ata_print_version_once(&pdev->dev, DRV_VERSION); rc = pcim_enable_device(pdev); if (rc) return rc; - if (board_id == vt6420) - bar_sizes = &svia_bar_sizes[0]; - else + if (board_id == vt6421) bar_sizes = &vt6421_bar_sizes[0]; + else + bar_sizes = &svia_bar_sizes[0]; for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++) if ((pci_resource_start(pdev, i) == 0) || (pci_resource_len(pdev, i) < bar_sizes[i])) { - dev_printk(KERN_ERR, &pdev->dev, + dev_err(&pdev->dev, "invalid PCI BAR %u (sz 0x%llx, val 0x%llx)\n", i, (unsigned long long)pci_resource_start(pdev, i), @@ -528,29 +631,27 @@ static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) return -ENODEV; } - if (board_id == vt6420) + switch (board_id) { + case vt6420: rc = vt6420_prepare_host(pdev, &host); - else + break; + case vt6421: rc = vt6421_prepare_host(pdev, &host); + break; + case vt8251: + rc = vt8251_prepare_host(pdev, &host); + break; + default: + rc = -EINVAL; + } if (rc) return rc; - svia_configure(pdev); + svia_configure(pdev, board_id); pci_set_master(pdev); - return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED, - &svia_sht); -} - -static int __init svia_init(void) -{ - return pci_register_driver(&svia_pci_driver); -} - -static void __exit svia_exit(void) -{ - pci_unregister_driver(&svia_pci_driver); + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, + IRQF_SHARED, &svia_sht); } -module_init(svia_init); -module_exit(svia_exit); +module_pci_driver(svia_pci_driver); |