libata: convert the remaining SATA drivers to new init model
[powerpc.git] / drivers / ata / sata_svw.c
index 46d8a94..cc07aac 100644 (file)
 #endif /* CONFIG_PPC_OF */
 
 #define DRV_NAME       "sata_svw"
-#define DRV_VERSION    "2.0"
+#define DRV_VERSION    "2.1"
 
 enum {
-       K2_FLAG_NO_ATAPI_DMA            = (1 << 29),
+       /* ap->flags bits */
+       K2_FLAG_SATA_8_PORTS            = (1 << 24),
+       K2_FLAG_NO_ATAPI_DMA            = (1 << 25),
 
        /* Taskfile registers offsets */
        K2_SATA_TF_CMD_OFFSET           = 0x00,
@@ -90,17 +92,6 @@ enum {
        board_svw8                      = 1,
 };
 
-static const struct k2_board_info {
-       unsigned int            n_ports;
-       unsigned long           port_flags;
-} k2_board_info[] = {
-       /* board_svw4 */
-       { 4, K2_FLAG_NO_ATAPI_DMA },
-
-       /* board_svw8 */
-       { 8, K2_FLAG_NO_ATAPI_DMA },
-};
-
 static u8 k2_stat_check_status(struct ata_port *ap);
 
 
@@ -116,7 +107,7 @@ static u32 k2_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
 {
        if (sc_reg > SCR_CONTROL)
                return 0xffffffffU;
-       return readl((void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+       return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
 }
 
 
@@ -125,7 +116,7 @@ static void k2_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
 {
        if (sc_reg > SCR_CONTROL)
                return;
-       writel(val, (void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+       writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
 }
 
 
@@ -135,31 +126,31 @@ static void k2_sata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
        unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
 
        if (tf->ctl != ap->last_ctl) {
-               writeb(tf->ctl, (void __iomem *) ioaddr->ctl_addr);
+               writeb(tf->ctl, ioaddr->ctl_addr);
                ap->last_ctl = tf->ctl;
                ata_wait_idle(ap);
        }
        if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
                writew(tf->feature | (((u16)tf->hob_feature) << 8),
-                      (void __iomem *) ioaddr->feature_addr);
+                      ioaddr->feature_addr);
                writew(tf->nsect | (((u16)tf->hob_nsect) << 8),
-                      (void __iomem *) ioaddr->nsect_addr);
+                      ioaddr->nsect_addr);
                writew(tf->lbal | (((u16)tf->hob_lbal) << 8),
-                      (void __iomem *) ioaddr->lbal_addr);
+                      ioaddr->lbal_addr);
                writew(tf->lbam | (((u16)tf->hob_lbam) << 8),
-                      (void __iomem *) ioaddr->lbam_addr);
+                      ioaddr->lbam_addr);
                writew(tf->lbah | (((u16)tf->hob_lbah) << 8),
-                      (void __iomem *) ioaddr->lbah_addr);
+                      ioaddr->lbah_addr);
        } else if (is_addr) {
-               writew(tf->feature, (void __iomem *) ioaddr->feature_addr);
-               writew(tf->nsect, (void __iomem *) ioaddr->nsect_addr);
-               writew(tf->lbal, (void __iomem *) ioaddr->lbal_addr);
-               writew(tf->lbam, (void __iomem *) ioaddr->lbam_addr);
-               writew(tf->lbah, (void __iomem *) ioaddr->lbah_addr);
+               writew(tf->feature, ioaddr->feature_addr);
+               writew(tf->nsect, ioaddr->nsect_addr);
+               writew(tf->lbal, ioaddr->lbal_addr);
+               writew(tf->lbam, ioaddr->lbam_addr);
+               writew(tf->lbah, ioaddr->lbah_addr);
        }
 
        if (tf->flags & ATA_TFLAG_DEVICE)
-               writeb(tf->device, (void __iomem *) ioaddr->device_addr);
+               writeb(tf->device, ioaddr->device_addr);
 
        ata_wait_idle(ap);
 }
@@ -171,12 +162,12 @@ static void k2_sata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
        u16 nsect, lbal, lbam, lbah, feature;
 
        tf->command = k2_stat_check_status(ap);
-       tf->device = readw((void __iomem *)ioaddr->device_addr);
-       feature = readw((void __iomem *)ioaddr->error_addr);
-       nsect = readw((void __iomem *)ioaddr->nsect_addr);
-       lbal = readw((void __iomem *)ioaddr->lbal_addr);
-       lbam = readw((void __iomem *)ioaddr->lbam_addr);
-       lbah = readw((void __iomem *)ioaddr->lbah_addr);
+       tf->device = readw(ioaddr->device_addr);
+       feature = readw(ioaddr->error_addr);
+       nsect = readw(ioaddr->nsect_addr);
+       lbal = readw(ioaddr->lbal_addr);
+       lbam = readw(ioaddr->lbam_addr);
+       lbah = readw(ioaddr->lbah_addr);
 
        tf->feature = feature;
        tf->nsect = nsect;
@@ -262,7 +253,7 @@ static void k2_bmdma_start_mmio (struct ata_queued_cmd *qc)
 
 static u8 k2_stat_check_status(struct ata_port *ap)
 {
-               return readl((void *) ap->ioaddr.status_addr);
+               return readl((void __iomem *) ap->ioaddr.status_addr);
 }
 
 #ifdef CONFIG_PPC_OF
@@ -349,21 +340,42 @@ static const struct ata_port_operations k2_sata_ops = {
        .bmdma_status           = ata_bmdma_status,
        .qc_prep                = ata_qc_prep,
        .qc_issue               = ata_qc_issue_prot,
-       .data_xfer              = ata_mmio_data_xfer,
+       .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,
-       .irq_handler            = ata_interrupt,
        .irq_clear              = ata_bmdma_irq_clear,
+       .irq_on                 = ata_irq_on,
+       .irq_ack                = ata_irq_ack,
        .scr_read               = k2_sata_scr_read,
        .scr_write              = k2_sata_scr_write,
        .port_start             = ata_port_start,
-       .port_stop              = ata_port_stop,
-       .host_stop              = ata_pci_host_stop,
 };
 
-static void k2_sata_setup_port(struct ata_ioports *port, unsigned long base)
+static const struct ata_port_info k2_port_info[] = {
+       /* board_svw4 */
+       {
+               .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+                                 ATA_FLAG_MMIO | K2_FLAG_NO_ATAPI_DMA,
+               .pio_mask       = 0x1f,
+               .mwdma_mask     = 0x07,
+               .udma_mask      = 0x7f,
+               .port_ops       = &k2_sata_ops,
+       },
+       /* board_svw8 */
+       {
+               .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+                                 ATA_FLAG_MMIO | K2_FLAG_NO_ATAPI_DMA |
+                                 K2_FLAG_SATA_8_PORTS,
+               .pio_mask       = 0x1f,
+               .mwdma_mask     = 0x07,
+               .udma_mask      = 0x7f,
+               .port_ops       = &k2_sata_ops,
+       },
+};
+
+static void k2_sata_setup_port(struct ata_ioports *port, void __iomem *base)
 {
        port->cmd_addr          = base + K2_SATA_TF_CMD_OFFSET;
        port->data_addr         = base + K2_SATA_TF_DATA_OFFSET;
@@ -386,25 +398,32 @@ static void k2_sata_setup_port(struct ata_ioports *port, unsigned long base)
 static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
        static int printed_version;
-       struct ata_probe_ent *probe_ent = NULL;
-       unsigned long base;
+       const struct ata_port_info *ppi[] =
+               { &k2_port_info[ent->driver_data], NULL };
+       struct ata_host *host;
        void __iomem *mmio_base;
-       const struct k2_board_info *board_info =
-                       &k2_board_info[ent->driver_data];
-       int pci_dev_busy = 0;
-       int rc;
-       int i;
+       int n_ports, i, rc;
 
        if (!printed_version++)
                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
+       /* allocate host */
+       n_ports = 4;
+       if (ppi[0]->flags & K2_FLAG_SATA_8_PORTS)
+               n_ports = 8;
+
+       host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
+       if (!host)
+               return -ENOMEM;
+
        /*
         * If this driver happens to only be useful on Apple's K2, then
         * we should check that here as it has a normal Serverworks ID
         */
-       rc = pci_enable_device(pdev);
+       rc = pcim_enable_device(pdev);
        if (rc)
                return rc;
+
        /*
         * Check if we have resources mapped at all (second function may
         * have been disabled by firmware)
@@ -412,36 +431,28 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
        if (pci_resource_len(pdev, 5) == 0)
                return -ENODEV;
 
-       /* Request PCI regions */
-       rc = pci_request_regions(pdev, DRV_NAME);
-       if (rc) {
-               pci_dev_busy = 1;
-               goto err_out;
-       }
+       /* Request and iomap PCI regions */
+       rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME);
+       if (rc == -EBUSY)
+               pcim_pin_device(pdev);
+       if (rc)
+               return rc;
+       host->iomap = pcim_iomap_table(pdev);
+       mmio_base = host->iomap[5];
+
+       /* different controllers have different number of ports - currently 4 or 8 */
+       /* All ports are on the same function. Multi-function device is no
+        * longer available. This should not be seen in any system. */
+       for (i = 0; i < host->n_ports; i++)
+               k2_sata_setup_port(&host->ports[i]->ioaddr,
+                                  mmio_base + i * K2_SATA_PORT_OFFSET);
 
        rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
        if (rc)
-               goto err_out_regions;
+               return rc;
        rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
        if (rc)
-               goto err_out_regions;
-
-       probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
-       if (probe_ent == NULL) {
-               rc = -ENOMEM;
-               goto err_out_regions;
-       }
-
-       memset(probe_ent, 0, sizeof(*probe_ent));
-       probe_ent->dev = pci_dev_to_dev(pdev);
-       INIT_LIST_HEAD(&probe_ent->node);
-
-       mmio_base = pci_iomap(pdev, 5, 0);
-       if (mmio_base == NULL) {
-               rc = -ENOMEM;
-               goto err_out_free_ent;
-       }
-       base = (unsigned long) mmio_base;
+               return rc;
 
        /* Clear a magic bit in SCR1 according to Darwin, those help
         * some funky seagate drives (though so far, those were already
@@ -454,44 +465,9 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
        writel(0xffffffff, mmio_base + K2_SATA_SCR_ERROR_OFFSET);
        writel(0x0, mmio_base + K2_SATA_SIM_OFFSET);
 
-       probe_ent->sht = &k2_sata_sht;
-       probe_ent->port_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
-                               ATA_FLAG_MMIO | board_info->port_flags;
-       probe_ent->port_ops = &k2_sata_ops;
-       probe_ent->n_ports = 4;
-       probe_ent->irq = pdev->irq;
-       probe_ent->irq_flags = IRQF_SHARED;
-       probe_ent->mmio_base = mmio_base;
-
-       /* We don't care much about the PIO/UDMA masks, but the core won't like us
-        * if we don't fill these
-        */
-       probe_ent->pio_mask = 0x1f;
-       probe_ent->mwdma_mask = 0x7;
-       probe_ent->udma_mask = 0x7f;
-
-       /* different controllers have different number of ports - currently 4 or 8 */
-       /* All ports are on the same function. Multi-function device is no
-        * longer available. This should not be seen in any system. */
-       for (i = 0; i < board_info->n_ports; i++)
-               k2_sata_setup_port(&probe_ent->port[i], base + i * K2_SATA_PORT_OFFSET);
-
        pci_set_master(pdev);
-
-       /* FIXME: check ata_device_add return value */
-       ata_device_add(probe_ent);
-       kfree(probe_ent);
-
-       return 0;
-
-err_out_free_ent:
-       kfree(probe_ent);
-err_out_regions:
-       pci_release_regions(pdev);
-err_out:
-       if (!pci_dev_busy)
-               pci_disable_device(pdev);
-       return rc;
+       return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
+                                &k2_sata_sht);
 }
 
 /* 0x240 is device ID for Apple K2 device