2  * Sonics Silicon Backplane
20 #include <linux/dma-mapping.h>
29 MODULE_DESCRIPTION("Sonics Silicon Backplane driver");
33 /* Temporary list of yet-to-be-attached buses */
37 /* Software ID counter */
64 		if (bus->bustype == SSB_BUSTYPE_PCI &&  in ssb_pci_dev_to_bus()
65 		    bus->host_pci == pdev)  in ssb_pci_dev_to_bus()
83 		if (bus->bustype == SSB_BUSTYPE_PCMCIA &&  in ssb_pcmcia_dev_to_bus()
84 		    bus->host_pcmcia == pdev)  in ssb_pcmcia_dev_to_bus()
111 	return -ENODEV;  in ssb_for_each_bus_call()
117 		get_device(dev->dev);  in ssb_device_get()
124 		put_device(dev->dev);  in ssb_device_put()
133 	if (dev->driver) {  in ssb_device_resume()
134 		ssb_drv = drv_to_ssb_drv(dev->driver);  in ssb_device_resume()
135 		if (ssb_drv && ssb_drv->resume)  in ssb_device_resume()
136 			err = ssb_drv->resume(ssb_dev);  in ssb_device_resume()
150 	if (dev->driver) {  in ssb_device_suspend()
151 		ssb_drv = drv_to_ssb_drv(dev->driver);  in ssb_device_suspend()
152 		if (ssb_drv && ssb_drv->suspend)  in ssb_device_suspend()
153 			err = ssb_drv->suspend(ssb_dev, state);  in ssb_device_suspend()
168 	bus->mapped_device = NULL;  in ssb_bus_resume()
170 	bus->pcicore.setup_done = 0;  in ssb_bus_resume()
181 	ssb_chipco_resume(&bus->chipco);  in ssb_bus_resume()
190 	ssb_chipco_suspend(&bus->chipco);  in ssb_bus_suspend()
198 /** ssb_devices_freeze - Freeze all devices on the bus.
214 	ctx->bus = bus;  in ssb_devices_freeze()
215 	WARN_ON(bus->nr_devices > ARRAY_SIZE(ctx->device_frozen));  in ssb_devices_freeze()
217 	for (i = 0; i < bus->nr_devices; i++) {  in ssb_devices_freeze()
218 		sdev = ssb_device_get(&bus->devices[i]);  in ssb_devices_freeze()
220 		if (!sdev->dev || !sdev->dev->driver ||  in ssb_devices_freeze()
221 		    !device_is_registered(sdev->dev)) {  in ssb_devices_freeze()
225 		sdrv = drv_to_ssb_drv(sdev->dev->driver);  in ssb_devices_freeze()
226 		if (WARN_ON(!sdrv->remove))  in ssb_devices_freeze()
228 		sdrv->remove(sdev);  in ssb_devices_freeze()
229 		ctx->device_frozen[i] = 1;  in ssb_devices_freeze()
235 /** ssb_devices_thaw - Unfreeze all devices on the bus.
237  * This will re-attach the device drivers and re-init the devices.
243 	struct ssb_bus *bus = ctx->bus;  in ssb_devices_thaw()
249 	for (i = 0; i < bus->nr_devices; i++) {  in ssb_devices_thaw()
250 		if (!ctx->device_frozen[i])  in ssb_devices_thaw()
252 		sdev = &bus->devices[i];  in ssb_devices_thaw()
254 		if (WARN_ON(!sdev->dev || !sdev->dev->driver))  in ssb_devices_thaw()
256 		sdrv = drv_to_ssb_drv(sdev->dev->driver);  in ssb_devices_thaw()
257 		if (WARN_ON(!sdrv || !sdrv->probe))  in ssb_devices_thaw()
260 		err = sdrv->probe(sdev, &sdev->id);  in ssb_devices_thaw()
262 			dev_err(sdev->dev,  in ssb_devices_thaw()
264 				dev_name(sdev->dev));  in ssb_devices_thaw()
279 	if (!dev->driver)  in ssb_device_shutdown()
281 	ssb_drv = drv_to_ssb_drv(dev->driver);  in ssb_device_shutdown()
282 	if (ssb_drv && ssb_drv->shutdown)  in ssb_device_shutdown()
283 		ssb_drv->shutdown(ssb_dev);  in ssb_device_shutdown()
289 	struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver);  in ssb_device_remove()
291 	if (ssb_drv && ssb_drv->remove)  in ssb_device_remove()
292 		ssb_drv->remove(ssb_dev);  in ssb_device_remove()
299 	struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver);  in ssb_device_probe()
303 	if (ssb_drv && ssb_drv->probe)  in ssb_device_probe()
304 		err = ssb_drv->probe(ssb_dev, &ssb_dev->id);  in ssb_device_probe()
314 	if ((tabid->vendor != devid->vendor) &&  in ssb_match_devid()
315 	    tabid->vendor != SSB_ANY_VENDOR)  in ssb_match_devid()
317 	if ((tabid->coreid != devid->coreid) &&  in ssb_match_devid()
318 	    tabid->coreid != SSB_ANY_ID)  in ssb_match_devid()
320 	if ((tabid->revision != devid->revision) &&  in ssb_match_devid()
321 	    tabid->revision != SSB_ANY_REV)  in ssb_match_devid()
330 	const struct ssb_device_id *id;  in ssb_bus_match()  local
332 	for (id = ssb_drv->id_table;  in ssb_bus_match()
333 	     id->vendor || id->coreid || id->revision;  in ssb_bus_match()
334 	     id++) {  in ssb_bus_match()
335 		if (ssb_match_devid(id, &ssb_dev->id))  in ssb_bus_match()
347 		return -ENODEV;  in ssb_device_uevent()
353 			     ssb_dev->id.vendor, ssb_dev->id.coreid,  in ssb_device_uevent()
354 			     ssb_dev->id.revision);  in ssb_device_uevent()
361 	return sprintf(buf, format_string, dev_to_ssb_dev(dev)->field); \
366 ssb_config_attr(coreid, id.coreid, "0x%04x\n")
367 ssb_config_attr(vendor, id.vendor, "0x%04x\n")
368 ssb_config_attr(revision, id.revision, "%u\n")
374 		       ssb_core_name(dev_to_ssb_dev(dev)->id.coreid));  in name_show()
420 	for (i = bus->nr_devices - 1; i >= 0; i--) {  in ssb_devices_unregister()
421 		sdev = &(bus->devices[i]);  in ssb_devices_unregister()
422 		if (sdev->dev)  in ssb_devices_unregister()
423 			device_unregister(sdev->dev);  in ssb_devices_unregister()
427 	if (bus->bustype == SSB_BUSTYPE_SSB)  in ssb_devices_unregister()
428 		platform_device_unregister(bus->watchdog);  in ssb_devices_unregister()
442 	list_del(&bus->list);  in ssb_bus_unregister()
467 	for (i = 0; i < bus->nr_devices; i++) {  in ssb_devices_register()
468 		sdev = &(bus->devices[i]);  in ssb_devices_register()
470 		/* We don't register SSB-system devices to the kernel,  in ssb_devices_register()
473 		switch (sdev->id.coreid) {  in ssb_devices_register()
486 			err = -ENOMEM;  in ssb_devices_register()
489 		dev = &devwrap->dev;  in ssb_devices_register()
490 		devwrap->sdev = sdev;  in ssb_devices_register()
492 		dev->release = ssb_release_dev;  in ssb_devices_register()
493 		dev->bus = &ssb_bustype;  in ssb_devices_register()
494 		dev_set_name(dev, "ssb%u:%d", bus->busnumber, dev_idx);  in ssb_devices_register()
496 		switch (bus->bustype) {  in ssb_devices_register()
499 			sdev->irq = bus->host_pci->irq;  in ssb_devices_register()
500 			dev->parent = &bus->host_pci->dev;  in ssb_devices_register()
501 			sdev->dma_dev = dev->parent;  in ssb_devices_register()
506 			sdev->irq = bus->host_pcmcia->irq;  in ssb_devices_register()
507 			dev->parent = &bus->host_pcmcia->dev;  in ssb_devices_register()
512 			dev->parent = &bus->host_sdio->dev;  in ssb_devices_register()
516 			dev->dma_mask = &dev->coherent_dma_mask;  in ssb_devices_register()
517 			sdev->dma_dev = dev;  in ssb_devices_register()
521 		sdev->dev = dev;  in ssb_devices_register()
528 			sdev->dev = NULL;  in ssb_devices_register()
536 	if (bus->mipscore.pflash.present) {  in ssb_devices_register()
544 	if (bus->mipscore.sflash.present) {  in ssb_devices_register()
567 			list_del(&bus->list);  in ssb_attach_queued_buses()
577 		ssb_pcicore_init(&bus->pcicore);  in ssb_attach_queued_buses()
578 		if (bus->bustype == SSB_BUSTYPE_SSB)  in ssb_attach_queued_buses()
582 		if (err == -ENOTSUPP)  in ssb_attach_queued_buses()
593 			list_del(&bus->list);  in ssb_attach_queued_buses()
596 		list_move_tail(&bus->list, &buses);  in ssb_attach_queued_buses()
612 	memcpy(&bus->boardinfo, &iv.boardinfo, sizeof(iv.boardinfo));  in ssb_fetch_invariants()
613 	memcpy(&bus->sprom, &iv.sprom, sizeof(iv.sprom));  in ssb_fetch_invariants()
614 	bus->has_cardbus_slot = iv.has_cardbus_slot;  in ssb_fetch_invariants()
626 	spin_lock_init(&bus->bar_lock);  in ssb_bus_register()
627 	INIT_LIST_HEAD(&bus->list);  in ssb_bus_register()
629 	spin_lock_init(&bus->gpio_lock);  in ssb_bus_register()
637 	/* Init SDIO-host device (if any), before the scan */  in ssb_bus_register()
643 	bus->busnumber = next_busnumber;  in ssb_bus_register()
649 	/* Init PCI-host device (if any) */  in ssb_bus_register()
653 	/* Init PCMCIA-host device (if any) */  in ssb_bus_register()
662 	ssb_chipcommon_init(&bus->chipco);  in ssb_bus_register()
663 	ssb_extif_init(&bus->extif);  in ssb_bus_register()
664 	ssb_mipscore_init(&bus->mipscore);  in ssb_bus_register()
675 	list_add_tail(&bus->list, &attach_queue);  in ssb_bus_register()
689 	list_del(&bus->list);  in ssb_bus_register()
709 	bus->bustype = SSB_BUSTYPE_PCI;  in ssb_bus_pcibus_register()
710 	bus->host_pci = host_pci;  in ssb_bus_pcibus_register()
711 	bus->ops = &ssb_pci_ops;  in ssb_bus_pcibus_register()
715 		dev_info(&host_pci->dev,  in ssb_bus_pcibus_register()
716 			 "Sonics Silicon Backplane found on PCI device %s\n",  in ssb_bus_pcibus_register()
717 			 dev_name(&host_pci->dev));  in ssb_bus_pcibus_register()
719 		dev_err(&host_pci->dev,  in ssb_bus_pcibus_register()
735 	bus->bustype = SSB_BUSTYPE_PCMCIA;  in ssb_bus_pcmciabus_register()
736 	bus->host_pcmcia = pcmcia_dev;  in ssb_bus_pcmciabus_register()
737 	bus->ops = &ssb_pcmcia_ops;  in ssb_bus_pcmciabus_register()
741 		dev_info(&pcmcia_dev->dev,  in ssb_bus_pcmciabus_register()
742 			 "Sonics Silicon Backplane found on PCMCIA device %s\n",  in ssb_bus_pcmciabus_register()
743 			 pcmcia_dev->devname);  in ssb_bus_pcmciabus_register()
756 	bus->bustype = SSB_BUSTYPE_SDIO;  in ssb_bus_sdiobus_register()
757 	bus->host_sdio = func;  in ssb_bus_sdiobus_register()
758 	bus->ops = &ssb_sdio_ops;  in ssb_bus_sdiobus_register()
759 	bus->quirks = quirks;  in ssb_bus_sdiobus_register()
763 		dev_info(&func->dev,  in ssb_bus_sdiobus_register()
764 			 "Sonics Silicon Backplane found on SDIO device %s\n",  in ssb_bus_sdiobus_register()
778 	bus->bustype = SSB_BUSTYPE_SSB;  in ssb_bus_host_soc_register()
779 	bus->ops = &ssb_host_soc_ops;  in ssb_bus_host_soc_register()
783 		pr_info("Sonics Silicon Backplane found at address 0x%08lX\n",  in ssb_bus_host_soc_register()
793 	drv->drv.name = drv->name;  in __ssb_driver_register()
794 	drv->drv.bus = &ssb_bustype;  in __ssb_driver_register()
795 	drv->drv.owner = owner;  in __ssb_driver_register()
797 	return driver_register(&drv->drv);  in __ssb_driver_register()
803 	driver_unregister(&drv->drv);  in ssb_driver_unregister()
809 	struct ssb_bus *bus = dev->bus;  in ssb_set_devtypedata()
813 	for (i = 0; i < bus->nr_devices; i++) {  in ssb_set_devtypedata()
814 		ent = &(bus->devices[i]);  in ssb_set_devtypedata()
815 		if (ent->id.vendor != dev->id.vendor)  in ssb_set_devtypedata()
817 		if (ent->id.coreid != dev->id.coreid)  in ssb_set_devtypedata()
820 		ent->devtypedata = data;  in ssb_set_devtypedata()
947 	if (bus->chipco.capabilities & SSB_CHIPCO_CAP_PMU)  in ssb_clockspeed()
948 		return ssb_pmu_get_controlclock(&bus->chipco);  in ssb_clockspeed()
950 	if (ssb_extif_available(&bus->extif))  in ssb_clockspeed()
951 		ssb_extif_get_clockcontrol(&bus->extif, &plltype,  in ssb_clockspeed()
953 	else if (bus->chipco.dev)  in ssb_clockspeed()
954 		ssb_chipco_get_clockcontrol(&bus->chipco, &plltype,  in ssb_clockspeed()
959 	if (bus->chip_id == 0x5365) {  in ssb_clockspeed()
983 	case SSB_IDLOW_SSBREV_25:     /* TODO - find the proper REJECT bit */  in ssb_tmslow_reject_bitmask()
1052  * timeout is in units of ten-microseconds
1071 	dev_err(dev->dev,  in ssb_wait_bits()
1075 	return -ETIMEDOUT;  in ssb_wait_bits()
1120 /* Some chipsets need routing known for PCIe and 64-bit DMA */
1123 	u16 chip_id = dev->bus->chip_id;  in ssb_dma_translation_special_bit()
1125 	if (dev->id.coreid == SSB_DEV_80211) {  in ssb_dma_translation_special_bit()
1135 	switch (dev->bus->bustype) {  in ssb_dma_translation()
1139 		if (pci_is_pcie(dev->bus->host_pci) &&  in ssb_dma_translation()
1164 	if (bus->bustype == SSB_BUSTYPE_SSB)  in ssb_bus_may_powerdown()
1167 	cc = &bus->chipco;  in ssb_bus_may_powerdown()
1169 	if (!cc->dev)  in ssb_bus_may_powerdown()
1171 	if (cc->dev->id.revision < 5)  in ssb_bus_may_powerdown()
1179 	bus->powered_up = 0;  in ssb_bus_may_powerdown()
1196 	bus->powered_up = 1;  in ssb_bus_powerup()
1199 	ssb_chipco_set_clockmode(&bus->chipco, mode);  in ssb_bus_powerup()
1228 	dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev;  in ssb_commit_settings()
1230 	dev = bus->chipco.dev;  in ssb_commit_settings()
1311 		pr_err("Broadcom 43xx PCI-SSB-bridge initialization failed\n");  in ssb_modinit()