1 files changed, 212 insertions, 186 deletions

diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 2339813ce9f..f56549b90aa 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -45,10 +45,11 @@
 #include "sata_promise.h"
 
 #define DRV_NAME	"sata_promise"
-#define DRV_VERSION	"2.00"
+#define DRV_VERSION	"2.05"
 
 
 enum {
+	PDC_MAX_PORTS		= 4,
 	PDC_MMIO_BAR		= 3,
 
 	/* register offsets */
@@ -70,14 +71,31 @@ enum {
 	PDC_TBG_MODE		= 0x41C, /* TBG mode (not SATAII) */
 	PDC_SLEW_CTL		= 0x470, /* slew rate control reg (not SATAII) */
 
-	PDC_ERR_MASK		= (1<<19) | (1<<20) | (1<<21) | (1<<22) |
-				  (1<<8) | (1<<9) | (1<<10),
+	/* PDC_GLOBAL_CTL bit definitions */
+	PDC_PH_ERR		= (1 <<  8), /* PCI error while loading packet */
+	PDC_SH_ERR		= (1 <<  9), /* PCI error while loading S/G table */
+	PDC_DH_ERR		= (1 << 10), /* PCI error while loading data */
+	PDC2_HTO_ERR		= (1 << 12), /* host bus timeout */
+	PDC2_ATA_HBA_ERR	= (1 << 13), /* error during SATA DATA FIS transmission */
+	PDC2_ATA_DMA_CNT_ERR	= (1 << 14), /* DMA DATA FIS size differs from S/G count */
+	PDC_OVERRUN_ERR		= (1 << 19), /* S/G byte count larger than HD requires */
+	PDC_UNDERRUN_ERR	= (1 << 20), /* S/G byte count less than HD requires */
+	PDC_DRIVE_ERR		= (1 << 21), /* drive error */
+	PDC_PCI_SYS_ERR		= (1 << 22), /* PCI system error */
+	PDC1_PCI_PARITY_ERR	= (1 << 23), /* PCI parity error (from SATA150 driver) */
+	PDC1_ERR_MASK		= PDC1_PCI_PARITY_ERR,
+	PDC2_ERR_MASK		= PDC2_HTO_ERR | PDC2_ATA_HBA_ERR | PDC2_ATA_DMA_CNT_ERR,
+	PDC_ERR_MASK		= (PDC_PH_ERR | PDC_SH_ERR | PDC_DH_ERR | PDC_OVERRUN_ERR
+				   | PDC_UNDERRUN_ERR | PDC_DRIVE_ERR | PDC_PCI_SYS_ERR
+				   | 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 */
 
@@ -100,8 +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 */
 };
 
 
@@ -110,28 +130,25 @@ 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);
 static int pdc_check_atapi_dma(struct ata_queued_cmd *qc);
-static int pdc_old_check_atapi_dma(struct ata_queued_cmd *qc);
+static int pdc_old_sata_check_atapi_dma(struct ata_queued_cmd *qc);
 static void pdc_irq_clear(struct ata_port *ap);
 static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
 static void pdc_freeze(struct ata_port *ap);
 static void pdc_thaw(struct ata_port *ap);
-static void pdc_error_handler(struct ata_port *ap);
+static void pdc_pata_error_handler(struct ata_port *ap);
+static void pdc_sata_error_handler(struct ata_port *ap);
 static void pdc_post_internal_cmd(struct ata_queued_cmd *qc);
-
+static int pdc_pata_cable_detect(struct ata_port *ap);
+static int pdc_sata_cable_detect(struct ata_port *ap);
 
 static struct scsi_host_template pdc_ata_sht = {
 	.module			= THIS_MODULE,
@@ -164,17 +181,17 @@ static const struct ata_port_operations pdc_sata_ops = {
 	.qc_issue		= pdc_qc_issue_prot,
 	.freeze			= pdc_freeze,
 	.thaw			= pdc_thaw,
-	.error_handler		= pdc_error_handler,
+	.error_handler		= pdc_sata_error_handler,
 	.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 */
@@ -185,23 +202,23 @@ static const struct ata_port_operations pdc_old_sata_ops = {
 	.check_status		= ata_check_status,
 	.exec_command		= pdc_exec_command_mmio,
 	.dev_select		= ata_std_dev_select,
-	.check_atapi_dma	= pdc_old_check_atapi_dma,
+	.check_atapi_dma	= pdc_old_sata_check_atapi_dma,
 
 	.qc_prep		= pdc_qc_prep,
 	.qc_issue		= pdc_qc_issue_prot,
 	.freeze			= pdc_freeze,
 	.thaw			= pdc_thaw,
-	.error_handler		= pdc_error_handler,
+	.error_handler		= pdc_sata_error_handler,
 	.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 = {
@@ -217,32 +234,41 @@ static const struct ata_port_operations pdc_pata_ops = {
 	.qc_issue		= pdc_qc_issue_prot,
 	.freeze			= pdc_freeze,
 	.thaw			= pdc_thaw,
-	.error_handler		= pdc_error_handler,
+	.error_handler		= pdc_pata_error_handler,
 	.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 */
@@ -251,8 +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 */
@@ -261,18 +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 */
@@ -313,18 +349,12 @@ static struct pci_driver pdc_ata_pci_driver = {
 };
 
 
-static int pdc_port_start(struct ata_port *ap)
+static int pdc_common_port_start(struct ata_port *ap)
 {
 	struct device *dev = ap->host->dev;
-	struct pdc_host_priv *hp = ap->host->private_data;
 	struct pdc_port_priv *pp;
 	int rc;
 
-	/* 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;
-
 	rc = ata_port_start(ap);
 	if (rc)
 		return rc;
@@ -339,8 +369,19 @@ static int pdc_port_start(struct ata_port *ap)
 
 	ap->private_data = pp;
 
+	return 0;
+}
+
+static int pdc_sata_port_start(struct ata_port *ap)
+{
+	int rc;
+
+	rc = pdc_common_port_start(ap);
+	if (rc)
+		return rc;
+
 	/* fix up PHYMODE4 align timing */
-	if ((hp->flags & PDC_FLAG_GEN_II) && sata_scr_valid(ap)) {
+	if (ap->flags & PDC_FLAG_GEN_II) {
 		void __iomem *mmio = (void __iomem *) ap->ioaddr.scr_addr;
 		unsigned int tmp;
 
@@ -374,23 +415,25 @@ static void pdc_reset_port(struct ata_port *ap)
 	readl(mmio);	/* flush */
 }
 
-static void pdc_pata_cbl_detect(struct ata_port *ap)
+static int pdc_pata_cable_detect(struct ata_port *ap)
 {
 	u8 tmp;
 	void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03;
 
 	tmp = readb(mmio);
+	if (tmp & 0x01)
+		return ATA_CBL_PATA40;
+	return ATA_CBL_PATA80;
+}
 
-	if (tmp & 0x01) {
-		ap->cbl = ATA_CBL_PATA40;
-		ap->udma_mask &= ATA_UDMA_MASK_40C;
-	} else
-		ap->cbl = ATA_CBL_PATA80;
+static int pdc_sata_cable_detect(struct ata_port *ap)
+{
+	return ATA_CBL_SATA;
 }
 
 static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
 {
-	if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
+	if (sc_reg > SCR_CONTROL)
 		return 0xffffffffU;
 	return readl(ap->ioaddr.scr_addr + (sc_reg * 4));
 }
@@ -399,7 +442,7 @@ 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)
 {
-	if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
+	if (sc_reg > SCR_CONTROL)
 		return;
 	writel(val, ap->ioaddr.scr_addr + (sc_reg * 4));
 }
@@ -555,52 +598,79 @@ static void pdc_thaw(struct ata_port *ap)
 	readl(mmio + PDC_CTLSTAT); /* flush */
 }
 
-static int pdc_pre_reset(struct ata_port *ap)
-{
-	if (!sata_scr_valid(ap))
-		pdc_pata_cbl_detect(ap);
-	return ata_std_prereset(ap);
-}
-
-static void pdc_error_handler(struct ata_port *ap)
+static void pdc_common_error_handler(struct ata_port *ap, ata_reset_fn_t hardreset)
 {
-	ata_reset_fn_t hardreset;
-
 	if (!(ap->pflags & ATA_PFLAG_FROZEN))
 		pdc_reset_port(ap);
 
-	hardreset = NULL;
-	if (sata_scr_valid(ap))
-		hardreset = sata_std_hardreset;
-
 	/* perform recovery */
-	ata_do_eh(ap, pdc_pre_reset, ata_std_softreset, hardreset,
+	ata_do_eh(ap, ata_std_prereset, ata_std_softreset, hardreset,
 		  ata_std_postreset);
 }
 
+static void pdc_pata_error_handler(struct ata_port *ap)
+{
+	pdc_common_error_handler(ap, NULL);
+}
+
+static void pdc_sata_error_handler(struct ata_port *ap)
+{
+	pdc_common_error_handler(ap, sata_std_hardreset);
+}
+
 static void pdc_post_internal_cmd(struct ata_queued_cmd *qc)
 {
 	struct ata_port *ap = qc->ap;
 
-	if (qc->flags & ATA_QCFLAG_FAILED)
-		qc->err_mask |= AC_ERR_OTHER;
-
 	/* make DMA engine forget about the failed command */
-	if (qc->err_mask)
+	if (qc->flags & ATA_QCFLAG_FAILED)
 		pdc_reset_port(ap);
 }
 
+static void pdc_error_intr(struct ata_port *ap, struct ata_queued_cmd *qc,
+			   u32 port_status, u32 err_mask)
+{
+	struct ata_eh_info *ehi = &ap->eh_info;
+	unsigned int ac_err_mask = 0;
+
+	ata_ehi_clear_desc(ehi);
+	ata_ehi_push_desc(ehi, "port_status 0x%08x", port_status);
+	port_status &= err_mask;
+
+	if (port_status & PDC_DRIVE_ERR)
+		ac_err_mask |= AC_ERR_DEV;
+	if (port_status & (PDC_OVERRUN_ERR | PDC_UNDERRUN_ERR))
+		ac_err_mask |= AC_ERR_HSM;
+	if (port_status & (PDC2_ATA_HBA_ERR | PDC2_ATA_DMA_CNT_ERR))
+		ac_err_mask |= AC_ERR_ATA_BUS;
+	if (port_status & (PDC_PH_ERR | PDC_SH_ERR | PDC_DH_ERR | PDC2_HTO_ERR
+			   | PDC_PCI_SYS_ERR | PDC1_PCI_PARITY_ERR))
+		ac_err_mask |= AC_ERR_HOST_BUS;
+
+	if (sata_scr_valid(ap))
+		ehi->serror |= pdc_sata_scr_read(ap, SCR_ERROR);
+
+	qc->err_mask |= ac_err_mask;
+
+	pdc_reset_port(ap);
+}
+
 static inline unsigned int pdc_host_intr( struct ata_port *ap,
                                           struct ata_queued_cmd *qc)
 {
 	unsigned int handled = 0;
-	u32 tmp;
-	void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
+	void __iomem *port_mmio = ap->ioaddr.cmd_addr;
+	u32 port_status, err_mask;
 
-	tmp = readl(mmio);
-	if (tmp & PDC_ERR_MASK) {
-		qc->err_mask |= AC_ERR_DEV;
-		pdc_reset_port(ap);
+	err_mask = PDC_ERR_MASK;
+	if (ap->flags & PDC_FLAG_GEN_II)
+		err_mask &= ~PDC1_ERR_MASK;
+	else
+		err_mask &= ~PDC2_ERR_MASK;
+	port_status = readl(port_mmio + PDC_GLOBAL_CTL);
+	if (unlikely(port_status & err_mask)) {
+		pdc_error_intr(ap, qc, port_status, err_mask);
+		return 1;
 	}
 
 	switch (qc->tf.protocol) {
@@ -767,44 +837,40 @@ static int pdc_check_atapi_dma(struct ata_queued_cmd *qc)
 	return pio;
 }
 
-static int pdc_old_check_atapi_dma(struct ata_queued_cmd *qc)
+static int pdc_old_sata_check_atapi_dma(struct ata_queued_cmd *qc)
 {
-	struct ata_port *ap = qc->ap;
-
 	/* First generation chips cannot use ATAPI DMA on SATA ports */
-	if (sata_scr_valid(ap))
-		return 1;
-	return pdc_check_atapi_dma(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;
@@ -818,7 +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);
 
@@ -831,7 +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. */
@@ -853,16 +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;
@@ -872,89 +938,49 @@ 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];
 
-	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;
-
-	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL)
-		return -ENOMEM;
+	/* 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;
 
-	probe_ent->dev = pci_dev_to_dev(pdev);
-	INIT_LIST_HEAD(&probe_ent->node);
+	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");
+		}
+	}
 
-	hp = devm_kzalloc(&pdev->dev, sizeof(*hp), GFP_KERNEL);
-	if (hp == NULL)
+	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;
-
-	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;
 	}
+	host->iomap = pcim_iomap_table(pdev);
 
-	pci_set_master(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(board_idx, probe_ent);
+	pdc_host_init(host);
 
-	if (!ata_device_add(probe_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;
 
-	devm_kfree(&pdev->dev, probe_ent);
-	return 0;
+	/* start host, request IRQ and attach */
+	pci_set_master(pdev);
+	return ata_host_activate(host, pdev->irq, pdc_interrupt, IRQF_SHARED,
+				 &pdc_ata_sht);
 }