Lines Matching +full:remote +full:- +full:bus
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
85 printk(KERN_DEBUG "VLYNQ local=%p remote=%p\n", in vlynq_dump_regs()
86 dev->local, dev->remote); in vlynq_dump_regs()
89 i + 1, ((u32 *)dev->local)[i]); in vlynq_dump_regs()
90 printk(KERN_DEBUG "VLYNQ: remote %d: %08x\n", in vlynq_dump_regs()
91 i + 1, ((u32 *)dev->remote)[i]); in vlynq_dump_regs()
114 if (readl(&dev->local->status) & VLYNQ_STATUS_LINK) in vlynq_linked()
124 writel(readl(&dev->local->control) | VLYNQ_CTRL_RESET, in vlynq_reset()
125 &dev->local->control); in vlynq_reset()
131 writel(readl(&dev->local->control) & ~VLYNQ_CTRL_RESET, in vlynq_reset()
132 &dev->local->control); in vlynq_reset()
145 virq = d->irq - dev->irq_start; in vlynq_irq_unmask()
146 val = readl(&dev->remote->int_device[virq >> 2]); in vlynq_irq_unmask()
148 writel(val, &dev->remote->int_device[virq >> 2]); in vlynq_irq_unmask()
158 virq = d->irq - dev->irq_start; in vlynq_irq_mask()
159 val = readl(&dev->remote->int_device[virq >> 2]); in vlynq_irq_mask()
161 writel(val, &dev->remote->int_device[virq >> 2]); in vlynq_irq_mask()
171 virq = d->irq - dev->irq_start; in vlynq_irq_type()
172 val = readl(&dev->remote->int_device[virq >> 2]); in vlynq_irq_type()
189 return -EINVAL; in vlynq_irq_type()
191 writel(val, &dev->remote->int_device[virq >> 2]); in vlynq_irq_type()
198 u32 status = readl(&dev->local->status); in vlynq_local_ack()
201 dev_name(&dev->dev), status); in vlynq_local_ack()
202 writel(status, &dev->local->status); in vlynq_local_ack()
208 u32 status = readl(&dev->remote->status); in vlynq_remote_ack()
210 pr_debug("%s: remote status: 0x%08x\n", in vlynq_remote_ack()
211 dev_name(&dev->dev), status); in vlynq_remote_ack()
212 writel(status, &dev->remote->status); in vlynq_remote_ack()
221 status = readl(&dev->local->int_status); in vlynq_irq()
222 writel(status, &dev->local->int_status); in vlynq_irq()
229 do_IRQ(dev->irq_start + virq); in vlynq_irq()
263 if (dev->local_irq == dev->remote_irq) { in vlynq_setup_irq()
265 "%s: local vlynq irq should be different from remote\n", in vlynq_setup_irq()
266 dev_name(&dev->dev)); in vlynq_setup_irq()
267 return -EINVAL; in vlynq_setup_irq()
270 /* Clear local and remote error bits */ in vlynq_setup_irq()
271 writel(readl(&dev->local->status), &dev->local->status); in vlynq_setup_irq()
272 writel(readl(&dev->remote->status), &dev->remote->status); in vlynq_setup_irq()
275 val = VLYNQ_CTRL_INT_VECTOR(dev->local_irq); in vlynq_setup_irq()
278 val |= readl(&dev->local->control); in vlynq_setup_irq()
279 writel(VLYNQ_INT_OFFSET, &dev->local->int_ptr); in vlynq_setup_irq()
280 writel(val, &dev->local->control); in vlynq_setup_irq()
282 val = VLYNQ_CTRL_INT_VECTOR(dev->remote_irq); in vlynq_setup_irq()
284 val |= readl(&dev->remote->control); in vlynq_setup_irq()
285 writel(VLYNQ_INT_OFFSET, &dev->remote->int_ptr); in vlynq_setup_irq()
286 writel(val, &dev->remote->int_ptr); in vlynq_setup_irq()
287 writel(val, &dev->remote->control); in vlynq_setup_irq()
289 for (i = dev->irq_start; i <= dev->irq_end; i++) { in vlynq_setup_irq()
290 virq = i - dev->irq_start; in vlynq_setup_irq()
291 if (virq == dev->local_irq) { in vlynq_setup_irq()
295 } else if (virq == dev->remote_irq) { in vlynq_setup_irq()
303 writel(0, &dev->remote->int_device[virq >> 2]); in vlynq_setup_irq()
307 if (request_irq(dev->irq, vlynq_irq, IRQF_SHARED, "vlynq", dev)) { in vlynq_setup_irq()
309 dev_name(&dev->dev)); in vlynq_setup_irq()
310 return -EAGAIN; in vlynq_setup_irq()
327 struct vlynq_device_id *ids = vdrv->id_table; in vlynq_device_match()
329 while (ids->id) { in vlynq_device_match()
330 if (ids->id == vdev->dev_id) { in vlynq_device_match()
331 vdev->divisor = ids->divisor; in vlynq_device_match()
334 "device: %08x\n", vdev->dev_id); in vlynq_device_match()
338 " for VLYNQ device: %08x\n", ids->id, vdev->dev_id); in vlynq_device_match()
347 struct vlynq_driver *drv = to_vlynq_driver(dev->driver); in vlynq_device_probe()
349 int result = -ENODEV; in vlynq_device_probe()
351 if (drv->probe) in vlynq_device_probe()
352 result = drv->probe(vdev, id); in vlynq_device_probe()
360 struct vlynq_driver *drv = to_vlynq_driver(dev->driver); in vlynq_device_remove()
362 if (drv->remove) in vlynq_device_remove()
363 drv->remove(to_vlynq_device(dev)); in vlynq_device_remove()
370 driver->driver.name = driver->name; in __vlynq_register_driver()
371 driver->driver.bus = &vlynq_bus_type; in __vlynq_register_driver()
372 return driver_register(&driver->driver); in __vlynq_register_driver()
378 driver_unregister(&driver->driver); in vlynq_unregister_driver()
383 * A VLYNQ remote device can clock the VLYNQ bus master
385 * remove device and the bus master should have the same
395 for (i = dev->dev_id ? vlynq_rdiv2 : vlynq_rdiv8; dev->dev_id ? in __vlynq_try_remote()
397 dev->dev_id ? i++ : i--) { in __vlynq_try_remote()
402 writel((readl(&dev->remote->control) & in __vlynq_try_remote()
405 VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1), in __vlynq_try_remote()
406 &dev->remote->control); in __vlynq_try_remote()
407 writel((readl(&dev->local->control) in __vlynq_try_remote()
410 VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1), in __vlynq_try_remote()
411 &dev->local->control); in __vlynq_try_remote()
415 "%s: using remote clock divisor %d\n", in __vlynq_try_remote()
416 dev_name(&dev->dev), i - vlynq_rdiv1 + 1); in __vlynq_try_remote()
417 dev->divisor = i; in __vlynq_try_remote()
424 return -ENODEV; in __vlynq_try_remote()
428 * A VLYNQ remote device can be clocked by the VLYNQ bus
430 * the bus master configures the serial clock divider.
440 for (i = dev->dev_id ? vlynq_ldiv2 : vlynq_ldiv8; dev->dev_id ? in __vlynq_try_local()
442 dev->dev_id ? i++ : i--) { in __vlynq_try_local()
444 writel((readl(&dev->local->control) & in __vlynq_try_local()
447 VLYNQ_CTRL_CLOCK_DIV(i - vlynq_ldiv1), in __vlynq_try_local()
448 &dev->local->control); in __vlynq_try_local()
453 dev_name(&dev->dev), i - vlynq_ldiv1 + 1); in __vlynq_try_local()
454 dev->divisor = i; in __vlynq_try_local()
461 return -ENODEV; in __vlynq_try_local()
468 * register for both the bus master and the remote device.
474 return -ENODEV; in __vlynq_try_external()
476 writel((readl(&dev->remote->control) & in __vlynq_try_external()
478 &dev->remote->control); in __vlynq_try_external()
480 writel((readl(&dev->local->control) & in __vlynq_try_external()
482 &dev->local->control); in __vlynq_try_external()
486 dev_name(&dev->dev)); in __vlynq_try_external()
487 dev->divisor = vlynq_div_external; in __vlynq_try_external()
491 return -ENODEV; in __vlynq_try_external()
497 struct plat_vlynq_ops *ops = dev->dev.platform_data; in __vlynq_enable_device()
499 result = ops->on(dev); in __vlynq_enable_device()
503 switch (dev->divisor) { in __vlynq_enable_device()
510 if (vlynq_linked(dev) && readl(&dev->remote->control) & in __vlynq_enable_device()
532 VLYNQ_CTRL_CLOCK_DIV(dev->divisor - in __vlynq_enable_device()
533 vlynq_ldiv1), &dev->local->control); in __vlynq_enable_device()
534 writel(0, &dev->remote->control); in __vlynq_enable_device()
538 dev_name(&dev->dev), in __vlynq_enable_device()
539 dev->divisor - vlynq_ldiv1 + 1); in __vlynq_enable_device()
551 writel(0, &dev->local->control); in __vlynq_enable_device()
553 VLYNQ_CTRL_CLOCK_DIV(dev->divisor - in __vlynq_enable_device()
554 vlynq_rdiv1), &dev->remote->control); in __vlynq_enable_device()
557 "%s: using remote clock divisor %d\n", in __vlynq_enable_device()
558 dev_name(&dev->dev), in __vlynq_enable_device()
559 dev->divisor - vlynq_rdiv1 + 1); in __vlynq_enable_device()
565 ops->off(dev); in __vlynq_enable_device()
566 return -ENODEV; in __vlynq_enable_device()
571 struct plat_vlynq_ops *ops = dev->dev.platform_data; in vlynq_enable_device()
572 int result = -ENODEV; in vlynq_enable_device()
580 ops->off(dev); in vlynq_enable_device()
582 dev->enabled = !result; in vlynq_enable_device()
590 struct plat_vlynq_ops *ops = dev->dev.platform_data; in vlynq_disable_device()
592 dev->enabled = 0; in vlynq_disable_device()
593 free_irq(dev->irq, dev); in vlynq_disable_device()
594 ops->off(dev); in vlynq_disable_device()
603 if (!dev->enabled) in vlynq_set_local_mapping()
604 return -ENXIO; in vlynq_set_local_mapping()
606 writel(tx_offset, &dev->local->tx_offset); in vlynq_set_local_mapping()
608 writel(mapping[i].offset, &dev->local->rx_mapping[i].offset); in vlynq_set_local_mapping()
609 writel(mapping[i].size, &dev->local->rx_mapping[i].size); in vlynq_set_local_mapping()
620 if (!dev->enabled) in vlynq_set_remote_mapping()
621 return -ENXIO; in vlynq_set_remote_mapping()
623 writel(tx_offset, &dev->remote->tx_offset); in vlynq_set_remote_mapping()
625 writel(mapping[i].offset, &dev->remote->rx_mapping[i].offset); in vlynq_set_remote_mapping()
626 writel(mapping[i].size, &dev->remote->rx_mapping[i].size); in vlynq_set_remote_mapping()
634 int irq = dev->irq_start + virq; in vlynq_set_local_irq()
635 if (dev->enabled) in vlynq_set_local_irq()
636 return -EBUSY; in vlynq_set_local_irq()
638 if ((irq < dev->irq_start) || (irq > dev->irq_end)) in vlynq_set_local_irq()
639 return -EINVAL; in vlynq_set_local_irq()
641 if (virq == dev->remote_irq) in vlynq_set_local_irq()
642 return -EINVAL; in vlynq_set_local_irq()
644 dev->local_irq = virq; in vlynq_set_local_irq()
652 int irq = dev->irq_start + virq; in vlynq_set_remote_irq()
653 if (dev->enabled) in vlynq_set_remote_irq()
654 return -EBUSY; in vlynq_set_remote_irq()
656 if ((irq < dev->irq_start) || (irq > dev->irq_end)) in vlynq_set_remote_irq()
657 return -EINVAL; in vlynq_set_remote_irq()
659 if (virq == dev->local_irq) in vlynq_set_remote_irq()
660 return -EINVAL; in vlynq_set_remote_irq()
662 dev->remote_irq = virq; in vlynq_set_remote_irq()
676 return -ENODEV; in vlynq_probe()
680 return -ENODEV; in vlynq_probe()
684 return -ENODEV; in vlynq_probe()
690 return -ENOMEM; in vlynq_probe()
693 dev->id = pdev->id; in vlynq_probe()
694 dev->dev.bus = &vlynq_bus_type; in vlynq_probe()
695 dev->dev.parent = &pdev->dev; in vlynq_probe()
696 dev_set_name(&dev->dev, "vlynq%d", dev->id); in vlynq_probe()
697 dev->dev.platform_data = pdev->dev.platform_data; in vlynq_probe()
698 dev->dev.release = vlynq_device_release; in vlynq_probe()
700 dev->regs_start = regs_res->start; in vlynq_probe()
701 dev->regs_end = regs_res->end; in vlynq_probe()
702 dev->mem_start = mem_res->start; in vlynq_probe()
703 dev->mem_end = mem_res->end; in vlynq_probe()
706 if (!request_mem_region(regs_res->start, len, dev_name(&dev->dev))) { in vlynq_probe()
708 dev_name(&dev->dev)); in vlynq_probe()
709 result = -ENXIO; in vlynq_probe()
713 dev->local = ioremap(regs_res->start, len); in vlynq_probe()
714 if (!dev->local) { in vlynq_probe()
716 dev_name(&dev->dev)); in vlynq_probe()
717 result = -ENXIO; in vlynq_probe()
721 dev->remote = (struct vlynq_regs *)((void *)dev->local + in vlynq_probe()
724 dev->irq = platform_get_irq_byname(pdev, "irq"); in vlynq_probe()
725 dev->irq_start = irq_res->start; in vlynq_probe()
726 dev->irq_end = irq_res->end; in vlynq_probe()
727 dev->local_irq = dev->irq_end - dev->irq_start; in vlynq_probe()
728 dev->remote_irq = dev->local_irq - 1; in vlynq_probe()
730 if (device_register(&dev->dev)) in vlynq_probe()
735 dev_name(&dev->dev), (void *)dev->regs_start, dev->irq, in vlynq_probe()
736 (void *)dev->mem_start); in vlynq_probe()
738 dev->dev_id = 0; in vlynq_probe()
739 dev->divisor = vlynq_div_auto; in vlynq_probe()
742 dev->dev_id = readl(&dev->remote->chip); in vlynq_probe()
743 ((struct plat_vlynq_ops *)(dev->dev.platform_data))->off(dev); in vlynq_probe()
745 if (dev->dev_id) in vlynq_probe()
746 printk(KERN_INFO "Found a VLYNQ device: %08x\n", dev->dev_id); in vlynq_probe()
751 iounmap(dev->local); in vlynq_probe()
754 release_mem_region(regs_res->start, len); in vlynq_probe()
763 device_unregister(&dev->dev); in vlynq_remove()
764 iounmap(dev->local); in vlynq_remove()
765 release_mem_region(dev->regs_start, in vlynq_remove()
766 dev->regs_end - dev->regs_start + 1); in vlynq_remove()