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libata: convert drivers with combined SATA/PATA ports to new init model 

Convert sata_via and sata_promise to new init model.  Both controllers
can have combined configuration (SATA + PATA) and used twisted
initialization method (modifying port in ->port_start) to overcome
probe_ent limitations.

This patch converts both drivers to new init model in which such
configuration is natively supported.

* promise: Combined pata port now uses separate port_info entry right
  after the sata counterpart entry.

* promise: Controller configuration is discerned using ap->flags.
  This simplifies init path and makes it look more like other LLDs.

* via: Both SATA and PATA ports in vt6421 are represented in their
  own port_info structure.

Tested on PDC20375 (SATA150 TX2plus) [105a:3375] and PDC40775 (SATA
300 TX2plus) [105a:3d73].  Couldn't test via cuz my c3 won't boot the
current kernel.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-04-17 23:44:07 +09:00 committed by Jeff Garzik
parent 21b0ad4fb8
commit eca25dca17
2 changed files with 185 additions and 248 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

257
drivers/ata/sata_promise.c
View File

@ -49,6 +49,7 @@
enum {
PDC_MAX_PORTS = 4,
PDC_MMIO_BAR = 3,
/* register offsets */
@ -89,10 +90,12 @@ enum {
| PDC1_ERR_MASK | PDC2_ERR_MASK),
board_2037x = 0, /* FastTrak S150 TX2plus */
board_20319 = 1, /* FastTrak S150 TX4 */
board_20619 = 2, /* FastTrak TX4000 */
board_2057x = 3, /* SATAII150 Tx2plus */
board_40518 = 4, /* SATAII150 Tx4 */
board_2037x_pata = 1, /* FastTrak S150 TX2plus PATA port */
board_20319 = 2, /* FastTrak S150 TX4 */
board_20619 = 3, /* FastTrak TX4000 */
board_2057x = 4, /* SATAII150 Tx2plus */
board_2057x_pata = 5, /* SATAII150 Tx2plus */
board_40518 = 6, /* SATAII150 Tx4 */
PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */
@ -115,8 +118,10 @@ enum {
ATA_FLAG_MMIO |
ATA_FLAG_PIO_POLLING,
/* hp->flags bits */
PDC_FLAG_GEN_II = (1 << 0),
/* ap->flags bits */
PDC_FLAG_GEN_II = (1 << 24),
PDC_FLAG_SATA_PATA = (1 << 25), /* supports SATA + PATA */
PDC_FLAG_4_PORTS = (1 << 26), /* 4 ports */
};
@ -125,16 +130,11 @@ struct pdc_port_priv {
dma_addr_t pkt_dma;
};
struct pdc_host_priv {
unsigned long flags;
unsigned long port_flags[ATA_MAX_PORTS];
};
static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
static irqreturn_t pdc_interrupt (int irq, void *dev_instance);
static int pdc_port_start(struct ata_port *ap);
static int pdc_common_port_start(struct ata_port *ap);
static int pdc_sata_port_start(struct ata_port *ap);
static void pdc_qc_prep(struct ata_queued_cmd *qc);
static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
@ -185,14 +185,13 @@ static const struct ata_port_operations pdc_sata_ops = {
.post_internal_cmd = pdc_post_internal_cmd,
.cable_detect = pdc_sata_cable_detect,
.data_xfer = ata_data_xfer,
.irq_handler = pdc_interrupt,
.irq_clear = pdc_irq_clear,
.irq_on = ata_irq_on,
.irq_ack = ata_irq_ack,
.scr_read = pdc_sata_scr_read,
.scr_write = pdc_sata_scr_write,
.port_start = pdc_port_start,
.port_start = pdc_sata_port_start,
};
/* First-generation chips need a more restrictive ->check_atapi_dma op */
@ -213,14 +212,13 @@ static const struct ata_port_operations pdc_old_sata_ops = {
.post_internal_cmd = pdc_post_internal_cmd,
.cable_detect = pdc_sata_cable_detect,
.data_xfer = ata_data_xfer,
.irq_handler = pdc_interrupt,
.irq_clear = pdc_irq_clear,
.irq_on = ata_irq_on,
.irq_ack = ata_irq_ack,
.scr_read = pdc_sata_scr_read,
.scr_write = pdc_sata_scr_write,
.port_start = pdc_port_start,
.port_start = pdc_sata_port_start,
};
static const struct ata_port_operations pdc_pata_ops = {
@ -240,29 +238,37 @@ static const struct ata_port_operations pdc_pata_ops = {
.post_internal_cmd = pdc_post_internal_cmd,
.cable_detect = pdc_pata_cable_detect,
.data_xfer = ata_data_xfer,
.irq_handler = pdc_interrupt,
.irq_clear = pdc_irq_clear,
.irq_on = ata_irq_on,
.irq_ack = ata_irq_ack,
.port_start = pdc_port_start,
.port_start = pdc_common_port_start,
};
static const struct ata_port_info pdc_port_info[] = {
/* board_2037x */
{
.sht = &pdc_ata_sht,
.flags = PDC_COMMON_FLAGS,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA |
PDC_FLAG_SATA_PATA,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_old_sata_ops,
},
/* board_2037x_pata */
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_pata_ops,
},
/* board_20319 */
{
.sht = &pdc_ata_sht,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA |
PDC_FLAG_4_PORTS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
@ -271,8 +277,8 @@ static const struct ata_port_info pdc_port_info[] = {
/* board_20619 */
{
.sht = &pdc_ata_sht,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS |
PDC_FLAG_4_PORTS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
@ -281,18 +287,28 @@ static const struct ata_port_info pdc_port_info[] = {
/* board_2057x */
{
.sht = &pdc_ata_sht,
.flags = PDC_COMMON_FLAGS,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA |
PDC_FLAG_GEN_II | PDC_FLAG_SATA_PATA,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_sata_ops,
},
/* board_2057x_pata */
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS,
PDC_FLAG_GEN_II,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_pata_ops,
},
/* board_40518 */
{
.sht = &pdc_ata_sht,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA |
PDC_FLAG_GEN_II | PDC_FLAG_4_PORTS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
@ -358,7 +374,6 @@ static int pdc_common_port_start(struct ata_port *ap)
static int pdc_sata_port_start(struct ata_port *ap)
{
struct pdc_host_priv *hp = ap->host->private_data;
int rc;
rc = pdc_common_port_start(ap);
@ -366,7 +381,7 @@ static int pdc_sata_port_start(struct ata_port *ap)
return rc;
/* fix up PHYMODE4 align timing */
if (hp->flags & PDC_FLAG_GEN_II) {
if (ap->flags & PDC_FLAG_GEN_II) {
void __iomem *mmio = (void __iomem *) ap->ioaddr.scr_addr;
unsigned int tmp;
@ -378,21 +393,6 @@ static int pdc_sata_port_start(struct ata_port *ap)
return 0;
}
static int pdc_port_start(struct ata_port *ap)
{
struct pdc_host_priv *hp = ap->host->private_data;
/* fix up port flags and cable type for SATA+PATA chips */
ap->flags |= hp->port_flags[ap->port_no];
if (ap->flags & ATA_FLAG_SATA) {
ap->cbl = ATA_CBL_SATA;
return pdc_sata_port_start(ap);
} else {
ap->ops = &pdc_pata_ops;
return pdc_common_port_start(ap);
}
}
static void pdc_reset_port(struct ata_port *ap)
{
void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT;
@ -660,11 +660,10 @@ static inline unsigned int pdc_host_intr( struct ata_port *ap,
{
unsigned int handled = 0;
void __iomem *port_mmio = ap->ioaddr.cmd_addr;
struct pdc_host_priv *hp = ap->host->private_data;
u32 port_status, err_mask;
err_mask = PDC_ERR_MASK;
if (hp->flags & PDC_FLAG_GEN_II)
if (ap->flags & PDC_FLAG_GEN_II)
err_mask &= ~PDC1_ERR_MASK;
else
err_mask &= ~PDC2_ERR_MASK;
@ -844,34 +843,34 @@ static int pdc_old_sata_check_atapi_dma(struct ata_queued_cmd *qc)
return 1;
}
static void pdc_ata_setup_port(struct ata_ioports *port, void __iomem *base,
void __iomem *scr_addr)
static void pdc_ata_setup_port(struct ata_port *ap,
void __iomem *base, void __iomem *scr_addr)
{
port->cmd_addr = base;
port->data_addr = base;
port->feature_addr =
port->error_addr = base + 0x4;
port->nsect_addr = base + 0x8;
port->lbal_addr = base + 0xc;
port->lbam_addr = base + 0x10;
port->lbah_addr = base + 0x14;
port->device_addr = base + 0x18;
port->command_addr =
port->status_addr = base + 0x1c;
port->altstatus_addr =
port->ctl_addr = base + 0x38;
port->scr_addr = scr_addr;
ap->ioaddr.cmd_addr = base;
ap->ioaddr.data_addr = base;
ap->ioaddr.feature_addr =
ap->ioaddr.error_addr = base + 0x4;
ap->ioaddr.nsect_addr = base + 0x8;
ap->ioaddr.lbal_addr = base + 0xc;
ap->ioaddr.lbam_addr = base + 0x10;
ap->ioaddr.lbah_addr = base + 0x14;
ap->ioaddr.device_addr = base + 0x18;
ap->ioaddr.command_addr =
ap->ioaddr.status_addr = base + 0x1c;
ap->ioaddr.altstatus_addr =
ap->ioaddr.ctl_addr = base + 0x38;
ap->ioaddr.scr_addr = scr_addr;
}
static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
static void pdc_host_init(struct ata_host *host)
{
void __iomem *mmio = pe->iomap[PDC_MMIO_BAR];
struct pdc_host_priv *hp = pe->private_data;
void __iomem *mmio = host->iomap[PDC_MMIO_BAR];
int is_gen2 = host->ports[0]->flags & PDC_FLAG_GEN_II;
int hotplug_offset;
u32 tmp;
if (hp->flags & PDC_FLAG_GEN_II)
if (is_gen2)
hotplug_offset = PDC2_SATA_PLUG_CSR;
else
hotplug_offset = PDC_SATA_PLUG_CSR;
@ -885,7 +884,7 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
/* enable BMR_BURST, maybe change FIFO_SHD to 8 dwords */
tmp = readl(mmio + PDC_FLASH_CTL);
tmp |= 0x02000; /* bit 13 (enable bmr burst) */
if (!(hp->flags & PDC_FLAG_GEN_II))
if (!is_gen2)
tmp |= 0x10000; /* bit 16 (fifo threshold at 8 dw) */
writel(tmp, mmio + PDC_FLASH_CTL);
@ -898,7 +897,7 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
writel(tmp | 0xff0000, mmio + hotplug_offset);
/* don't initialise TBG or SLEW on 2nd generation chips */
if (hp->flags & PDC_FLAG_GEN_II)
if (is_gen2)
return;
/* reduce TBG clock to 133 Mhz. */
@ -920,16 +919,16 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int printed_version;
struct ata_probe_ent *probe_ent;
struct pdc_host_priv *hp;
const struct ata_port_info *pi = &pdc_port_info[ent->driver_data];
const struct ata_port_info *ppi[PDC_MAX_PORTS];
struct ata_host *host;
void __iomem *base;
unsigned int board_idx = (unsigned int) ent->driver_data;
int rc;
u8 tmp;
int n_ports, i, rc;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
/* enable and acquire resources */
rc = pcim_enable_device(pdev);
if (rc)
return rc;
@ -939,6 +938,37 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
pcim_pin_device(pdev);
if (rc)
return rc;
base = pcim_iomap_table(pdev)[PDC_MMIO_BAR];
/* determine port configuration and setup host */
n_ports = 2;
if (pi->flags & PDC_FLAG_4_PORTS)
n_ports = 4;
for (i = 0; i < n_ports; i++)
ppi[i] = pi;
if (pi->flags & PDC_FLAG_SATA_PATA) {
u8 tmp = readb(base + PDC_FLASH_CTL+1);
if (!(tmp & 0x80)) {
ppi[n_ports++] = pi + 1;
dev_printk(KERN_INFO, &pdev->dev, "PATA port found\n");
}
}
host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
if (!host) {
dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n");
return -ENOMEM;
}
host->iomap = pcim_iomap_table(pdev);
for (i = 0; i < host->n_ports; i++)
pdc_ata_setup_port(host->ports[i],
base + 0x200 + i * 0x80,
base + 0x400 + i * 0x100);
/* initialize adapter */
pdc_host_init(host);
rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
if (rc)
@ -947,81 +977,10 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
if (rc)
return rc;
probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
if (probe_ent == NULL)
return -ENOMEM;
probe_ent->dev = pci_dev_to_dev(pdev);
INIT_LIST_HEAD(&probe_ent->node);
hp = devm_kzalloc(&pdev->dev, sizeof(*hp), GFP_KERNEL);
if (hp == NULL)
return -ENOMEM;
probe_ent->private_data = hp;
probe_ent->sht = pdc_port_info[board_idx].sht;
probe_ent->port_flags = pdc_port_info[board_idx].flags;
probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask;
probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask;
probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask;
probe_ent->port_ops = pdc_port_info[board_idx].port_ops;
probe_ent->irq = pdev->irq;
probe_ent->irq_flags = IRQF_SHARED;
probe_ent->iomap = pcim_iomap_table(pdev);
base = probe_ent->iomap[PDC_MMIO_BAR];
pdc_ata_setup_port(&probe_ent->port[0], base + 0x200, base + 0x400);
pdc_ata_setup_port(&probe_ent->port[1], base + 0x280, base + 0x500);
/* notice 4-port boards */
switch (board_idx) {
case board_40518:
hp->flags |= PDC_FLAG_GEN_II;
/* Fall through */
case board_20319:
probe_ent->n_ports = 4;
pdc_ata_setup_port(&probe_ent->port[2], base + 0x300, base + 0x600);
pdc_ata_setup_port(&probe_ent->port[3], base + 0x380, base + 0x700);
break;
case board_2057x:
hp->flags |= PDC_FLAG_GEN_II;
/* Fall through */
case board_2037x:
/* TX2plus boards also have a PATA port */
tmp = readb(base + PDC_FLASH_CTL+1);
if (!(tmp & 0x80)) {
probe_ent->n_ports = 3;
pdc_ata_setup_port(&probe_ent->port[2], base + 0x300, NULL);
hp->port_flags[2] = ATA_FLAG_SLAVE_POSS;
printk(KERN_INFO DRV_NAME " PATA port found\n");
} else
probe_ent->n_ports = 2;
hp->port_flags[0] = ATA_FLAG_SATA;
hp->port_flags[1] = ATA_FLAG_SATA;
break;
case board_20619:
probe_ent->n_ports = 4;
pdc_ata_setup_port(&probe_ent->port[2], base + 0x300, NULL);
pdc_ata_setup_port(&probe_ent->port[3], base + 0x380, NULL);
break;
default:
BUG();
break;
}
/* start host, request IRQ and attach */
pci_set_master(pdev);
/* initialize adapter */
pdc_host_init(board_idx, probe_ent);
if (!ata_device_add(probe_ent))
return -ENODEV;
devm_kfree(&pdev->dev, probe_ent);
return 0;
return ata_host_activate(host, pdev->irq, pdc_interrupt, IRQF_SHARED,
&pdc_ata_sht);
}

178
drivers/ata/sata_via.c
View File

@ -64,8 +64,6 @@ enum {
PORT0 = (1 << 1),
PORT1 = (1 << 0),
ALL_PORTS = PORT0 | PORT1,
PATA_PORT = 2, /* PATA is port 2 */
N_PORTS = 3,
NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4),
@ -81,7 +79,6 @@ static void vt6420_error_handler(struct ata_port *ap);
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 int vt6421_port_start(struct ata_port *ap);
static const struct pci_device_id svia_pci_tbl[] = {
{ PCI_VDEVICE(VIA, 0x5337), vt6420 },
@ -140,7 +137,6 @@ static const struct ata_port_operations vt6420_sata_ops = {
.error_handler = vt6420_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.irq_on = ata_irq_on,
.irq_ack = ata_irq_ack,
@ -175,12 +171,11 @@ static const struct ata_port_operations vt6421_pata_ops = {
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = vt6421_pata_cable_detect,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.irq_on = ata_irq_on,
.irq_ack = ata_irq_ack,
.port_start = vt6421_port_start,
.port_start = ata_port_start,
};
static const struct ata_port_operations vt6421_sata_ops = {
@ -207,7 +202,6 @@ static const struct ata_port_operations vt6421_sata_ops = {
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = ata_cable_sata,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.irq_on = ata_irq_on,
.irq_ack = ata_irq_ack,
@ -215,11 +209,10 @@ static const struct ata_port_operations vt6421_sata_ops = {
.scr_read = svia_scr_read,
.scr_write = svia_scr_write,
.port_start = vt6421_port_start,
.port_start = ata_port_start,
};
static struct ata_port_info vt6420_port_info = {
.sht = &svia_sht,
static const struct ata_port_info vt6420_port_info = {
.flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
@ -227,6 +220,22 @@ static struct ata_port_info vt6420_port_info = {
.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,
.udma_mask = 0x7f,
.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,
.udma_mask = 0x7f,
.port_ops = &vt6421_pata_ops,
};
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers");
MODULE_LICENSE("GPL");
@ -356,16 +365,6 @@ static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->pio_mode - XFER_UDMA_0]);
}
static int vt6421_port_start(struct ata_port *ap)
{
if (ap->port_no == PATA_PORT) {
ap->ops = &vt6421_pata_ops;
ap->mwdma_mask = 0;
ap->flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST;
}
return ata_port_start(ap);
}
static const unsigned int svia_bar_sizes[] = {
8, 4, 8, 4, 16, 256
};
@ -384,79 +383,78 @@ static void __iomem * vt6421_scr_addr(void __iomem *addr, unsigned int port)
return addr + (port * 64);
}
static void vt6421_init_addrs(struct ata_probe_ent *probe_ent,
void __iomem * const *iomap, unsigned int port)
static void vt6421_init_addrs(struct ata_port *ap)
{
void __iomem *reg_addr = iomap[port];
void __iomem *bmdma_addr = iomap[4] + (port * 8);
void __iomem * const * iomap = ap->host->iomap;
void __iomem *reg_addr = iomap[ap->port_no];
void __iomem *bmdma_addr = iomap[4] + (ap->port_no * 8);
struct ata_ioports *ioaddr = &ap->ioaddr;
probe_ent->port[port].cmd_addr = reg_addr;
probe_ent->port[port].altstatus_addr =
probe_ent->port[port].ctl_addr = (void __iomem *)
ioaddr->cmd_addr = reg_addr;
ioaddr->altstatus_addr =
ioaddr->ctl_addr = (void __iomem *)
((unsigned long)(reg_addr + 8) | ATA_PCI_CTL_OFS);
probe_ent->port[port].bmdma_addr = bmdma_addr;
probe_ent->port[port].scr_addr = vt6421_scr_addr(iomap[5], port);
ioaddr->bmdma_addr = bmdma_addr;
ioaddr->scr_addr = vt6421_scr_addr(iomap[5], ap->port_no);
ata_std_ports(&probe_ent->port[port]);
ata_std_ports(ioaddr);
}
static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev)
static int vt6420_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
{
struct ata_probe_ent *probe_ent;
struct ata_port_info *ppi[2];
void __iomem *bar5;
const struct ata_port_info *ppi[] = { &vt6420_port_info, NULL };
struct ata_host *host;
int rc;
ppi[0] = ppi[1] = &vt6420_port_info;
probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
if (!probe_ent)
return NULL;
rc = ata_pci_prepare_native_host(pdev, ppi, 2, &host);
if (rc)
return rc;
*r_host = host;
bar5 = pcim_iomap(pdev, 5, 0);
if (!bar5) {
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 NULL;
return rc;
}
probe_ent->port[0].scr_addr = svia_scr_addr(bar5, 0);
probe_ent->port[1].scr_addr = svia_scr_addr(bar5, 1);
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 probe_ent;
return 0;
}
static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev)
static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
{
struct ata_probe_ent *probe_ent;
unsigned int i;
const struct ata_port_info *ppi[] =
{ &vt6421_sport_info, &vt6421_sport_info, &vt6421_pport_info };
struct ata_host *host;
int i, rc;
probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
if (!probe_ent)
return NULL;
memset(probe_ent, 0, sizeof(*probe_ent));
probe_ent->dev = pci_dev_to_dev(pdev);
INIT_LIST_HEAD(&probe_ent->node);
probe_ent->sht = &svia_sht;
probe_ent->port_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY;
probe_ent->port_ops = &vt6421_sata_ops;
probe_ent->n_ports = N_PORTS;
probe_ent->irq = pdev->irq;
probe_ent->irq_flags = IRQF_SHARED;
probe_ent->pio_mask = 0x1f;
probe_ent->mwdma_mask = 0x07;
probe_ent->udma_mask = 0x7f;
for (i = 0; i < 6; i++)
if (!pcim_iomap(pdev, i, 0)) {
dev_printk(KERN_ERR, &pdev->dev,
"failed to iomap PCI BAR %d\n", i);
return NULL;
*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");
return -ENOMEM;
}
for (i = 0; i < N_PORTS; i++)
vt6421_init_addrs(probe_ent, pcim_iomap_table(pdev), i);
rc = pcim_iomap_regions(pdev, 0x1f, DRV_NAME);
if (rc) {
dev_printk(KERN_ERR, &pdev->dev, "failed to request/iomap "
"PCI BARs (errno=%d)\n", rc);
return rc;
}
host->iomap = pcim_iomap_table(pdev);
return probe_ent;
for (i = 0; i < host->n_ports; i++)
vt6421_init_addrs(host->ports[i]);
rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
if (rc)
return rc;
rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
if (rc)
return rc;
return 0;
}
static void svia_configure(struct pci_dev *pdev)
@ -503,7 +501,7 @@ 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_probe_ent *probe_ent;
struct ata_host *host;
int board_id = (int) ent->driver_data;
const int *bar_sizes;
u8 tmp8;
@ -515,12 +513,6 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
return rc;
rc = pci_request_regions(pdev, DRV_NAME);
if (rc) {
pcim_pin_device(pdev);
return rc;
}
if (board_id == vt6420) {
pci_read_config_byte(pdev, SATA_PATA_SHARING, &tmp8);
if (tmp8 & SATA_2DEV) {
@ -546,32 +538,18 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
return -ENODEV;
}
rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
if (rc)
return rc;
rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
if (rc)
return rc;
if (board_id == vt6420)
probe_ent = vt6420_init_probe_ent(pdev);
rc = vt6420_prepare_host(pdev, &host);
else
probe_ent = vt6421_init_probe_ent(pdev);
if (!probe_ent) {
dev_printk(KERN_ERR, &pdev->dev, "out of memory\n");
return -ENOMEM;
}
rc = vt6421_prepare_host(pdev, &host);
if (rc)
return rc;
svia_configure(pdev);
pci_set_master(pdev);
if (!ata_device_add(probe_ent))
return -ENODEV;
devm_kfree(&pdev->dev, probe_ent);
return 0;
return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
&svia_sht);
}
static int __init svia_init(void)