+static int __init sun3_scsi_probe(struct platform_device *pdev)
+{
+ struct Scsi_Host *instance;
+ int error;
+ struct resource *irq, *mem;
+ unsigned char *ioaddr;
+#ifdef SUN3_SCSI_VME
+ int i;
+#endif
+
+ if (setup_can_queue > 0)
+ sun3_scsi_template.can_queue = setup_can_queue;
+ if (setup_cmd_per_lun > 0)
+ sun3_scsi_template.cmd_per_lun = setup_cmd_per_lun;
+ if (setup_sg_tablesize >= 0)
+ sun3_scsi_template.sg_tablesize = setup_sg_tablesize;
+ if (setup_hostid >= 0)
+ sun3_scsi_template.this_id = setup_hostid & 7;
+
+#ifdef SUPPORT_TAGS
+ if (setup_use_tagged_queuing < 0)
+ setup_use_tagged_queuing = 1;
+#endif
+
+#ifdef SUN3_SCSI_VME
+ ioaddr = NULL;
+ for (i = 0; i < 2; i++) {
+ unsigned char x;
+
+ irq = platform_get_resource(pdev, IORESOURCE_IRQ, i);
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, i);
+ if (!irq || !mem)
+ break;
+
+ ioaddr = sun3_ioremap(mem->start, resource_size(mem),
+ SUN3_PAGE_TYPE_VME16);
+ dregs = (struct sun3_dma_regs *)(ioaddr + 8);
+
+ if (sun3_map_test((unsigned long)dregs, &x)) {
+ unsigned short oldcsr;
+
+ oldcsr = dregs->csr;
+ dregs->csr = 0;
+ udelay(SUN3_DMA_DELAY);
+ if (dregs->csr == 0x1400)
+ break;
+
+ dregs->csr = oldcsr;
+ }
+
+ iounmap(ioaddr);
+ ioaddr = NULL;
+ }
+ if (!ioaddr)
+ return -ENODEV;
+#else
+ irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!irq || !mem)
+ return -ENODEV;
+
+ ioaddr = ioremap(mem->start, resource_size(mem));
+ dregs = (struct sun3_dma_regs *)(ioaddr + 8);
+
+ udc_regs = dvma_malloc(sizeof(struct sun3_udc_regs));
+ if (!udc_regs) {
+ pr_err(PFX "couldn't allocate DVMA memory!\n");
+ iounmap(ioaddr);
+ return -ENOMEM;
+ }
+#endif
+
+ sun3_scsi_regp = ioaddr;
+
+ instance = scsi_host_alloc(&sun3_scsi_template,
+ sizeof(struct NCR5380_hostdata));
+ if (!instance) {
+ error = -ENOMEM;
+ goto fail_alloc;
+ }
+ default_instance = instance;
+
+ instance->io_port = (unsigned long)ioaddr;
+ instance->irq = irq->start;
+
+ NCR5380_init(instance, 0);
+
+ error = request_irq(instance->irq, scsi_sun3_intr, 0,
+ "NCR5380", instance);
+ if (error) {
+#ifdef REAL_DMA
+ pr_err(PFX "scsi%d: IRQ %d not free, bailing out\n",
+ instance->host_no, instance->irq);
+ goto fail_irq;
+#else
+ pr_warn(PFX "scsi%d: IRQ %d not free, interrupts disabled\n",
+ instance->host_no, instance->irq);
+ instance->irq = NO_IRQ;
+#endif
+ }
+
+ dregs->csr = 0;
+ udelay(SUN3_DMA_DELAY);
+ dregs->csr = CSR_SCSI | CSR_FIFO | CSR_INTR;
+ udelay(SUN3_DMA_DELAY);
+ dregs->fifo_count = 0;
+#ifdef SUN3_SCSI_VME
+ dregs->fifo_count_hi = 0;
+ dregs->dma_addr_hi = 0;
+ dregs->dma_addr_lo = 0;
+ dregs->dma_count_hi = 0;
+ dregs->dma_count_lo = 0;
+
+ dregs->ivect = VME_DATA24 | (instance->irq & 0xff);
+#endif
+
+#ifdef RESET_BOOT
+ sun3_scsi_reset_boot(instance);
+#endif
+
+ error = scsi_add_host(instance, NULL);
+ if (error)
+ goto fail_host;
+
+ platform_set_drvdata(pdev, instance);
+
+ scsi_scan_host(instance);
+ return 0;
+
+fail_host:
+ if (instance->irq != NO_IRQ)
+ free_irq(instance->irq, instance);
+fail_irq:
+ NCR5380_exit(instance);
+ scsi_host_put(instance);
+fail_alloc:
+ if (udc_regs)
+ dvma_free(udc_regs);
+ iounmap(sun3_scsi_regp);
+ return error;
+}
+
+static int __exit sun3_scsi_remove(struct platform_device *pdev)
+{
+ struct Scsi_Host *instance = platform_get_drvdata(pdev);
+
+ scsi_remove_host(instance);
+ if (instance->irq != NO_IRQ)
+ free_irq(instance->irq, instance);
+ NCR5380_exit(instance);
+ scsi_host_put(instance);
+ if (udc_regs)
+ dvma_free(udc_regs);
+ iounmap(sun3_scsi_regp);
+ return 0;
+}
+
+static struct platform_driver sun3_scsi_driver = {
+ .remove = __exit_p(sun3_scsi_remove),
+ .driver = {
+ .name = DRV_MODULE_NAME,
+ .owner = THIS_MODULE,
+ },
+};