1 /* Framework for finding and configuring PHYs.
2 * Also contains generic PHY driver
6 * Copyright (c) 2004 Freescale Semiconductor, Inc.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
17 #include <linux/kernel.h>
18 #include <linux/string.h>
19 #include <linux/errno.h>
20 #include <linux/unistd.h>
21 #include <linux/slab.h>
22 #include <linux/interrupt.h>
23 #include <linux/init.h>
24 #include <linux/delay.h>
25 #include <linux/netdevice.h>
26 #include <linux/etherdevice.h>
27 #include <linux/skbuff.h>
29 #include <linux/module.h>
30 #include <linux/mii.h>
31 #include <linux/ethtool.h>
32 #include <linux/phy.h>
33 #include <linux/mdio.h>
35 #include <linux/uaccess.h>
40 MODULE_DESCRIPTION("PHY library");
41 MODULE_AUTHOR("Andy Fleming");
42 MODULE_LICENSE("GPL");
44 void phy_device_free(struct phy_device *phydev)
46 put_device(&phydev->mdio.dev);
48 EXPORT_SYMBOL(phy_device_free);
50 static void phy_mdio_device_free(struct mdio_device *mdiodev)
52 struct phy_device *phydev;
54 phydev = container_of(mdiodev, struct phy_device, mdio);
55 phy_device_free(phydev);
58 static void phy_device_release(struct device *dev)
60 kfree(to_phy_device(dev));
63 static void phy_mdio_device_remove(struct mdio_device *mdiodev)
65 struct phy_device *phydev;
67 phydev = container_of(mdiodev, struct phy_device, mdio);
68 phy_device_remove(phydev);
77 static struct phy_driver genphy_driver[GENPHY_DRV_MAX];
79 static LIST_HEAD(phy_fixup_list);
80 static DEFINE_MUTEX(phy_fixup_lock);
83 static bool mdio_bus_phy_may_suspend(struct phy_device *phydev)
85 struct device_driver *drv = phydev->mdio.dev.driver;
86 struct phy_driver *phydrv = to_phy_driver(drv);
87 struct net_device *netdev = phydev->attached_dev;
89 if (!drv || !phydrv->suspend)
92 /* PHY not attached? May suspend if the PHY has not already been
93 * suspended as part of a prior call to phy_disconnect() ->
94 * phy_detach() -> phy_suspend() because the parent netdev might be the
95 * MDIO bus driver and clock gated at this point.
100 /* Don't suspend PHY if the attached netdev parent may wakeup.
101 * The parent may point to a PCI device, as in tg3 driver.
103 if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent))
106 /* Also don't suspend PHY if the netdev itself may wakeup. This
107 * is the case for devices w/o underlaying pwr. mgmt. aware bus,
110 if (device_may_wakeup(&netdev->dev))
114 return !phydev->suspended;
117 static int mdio_bus_phy_suspend(struct device *dev)
119 struct phy_device *phydev = to_phy_device(dev);
121 /* We must stop the state machine manually, otherwise it stops out of
122 * control, possibly with the phydev->lock held. Upon resume, netdev
123 * may call phy routines that try to grab the same lock, and that may
124 * lead to a deadlock.
126 if (phydev->attached_dev && phydev->adjust_link)
127 phy_stop_machine(phydev);
129 if (!mdio_bus_phy_may_suspend(phydev))
132 phydev->suspended_by_mdio_bus = true;
134 return phy_suspend(phydev);
137 static int mdio_bus_phy_resume(struct device *dev)
139 struct phy_device *phydev = to_phy_device(dev);
142 if (!phydev->suspended_by_mdio_bus)
145 phydev->suspended_by_mdio_bus = false;
147 ret = phy_resume(phydev);
152 if (phydev->attached_dev && phydev->adjust_link)
153 phy_start_machine(phydev);
158 static int mdio_bus_phy_restore(struct device *dev)
160 struct phy_device *phydev = to_phy_device(dev);
161 struct net_device *netdev = phydev->attached_dev;
167 ret = phy_init_hw(phydev);
171 if (phydev->attached_dev && phydev->adjust_link)
172 phy_start_machine(phydev);
177 static const struct dev_pm_ops mdio_bus_phy_pm_ops = {
178 .suspend = mdio_bus_phy_suspend,
179 .resume = mdio_bus_phy_resume,
180 .freeze = mdio_bus_phy_suspend,
181 .thaw = mdio_bus_phy_resume,
182 .restore = mdio_bus_phy_restore,
185 #define MDIO_BUS_PHY_PM_OPS (&mdio_bus_phy_pm_ops)
189 #define MDIO_BUS_PHY_PM_OPS NULL
191 #endif /* CONFIG_PM */
194 * phy_register_fixup - creates a new phy_fixup and adds it to the list
195 * @bus_id: A string which matches phydev->mdio.dev.bus_id (or PHY_ANY_ID)
196 * @phy_uid: Used to match against phydev->phy_id (the UID of the PHY)
197 * It can also be PHY_ANY_UID
198 * @phy_uid_mask: Applied to phydev->phy_id and fixup->phy_uid before
200 * @run: The actual code to be run when a matching PHY is found
202 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
203 int (*run)(struct phy_device *))
205 struct phy_fixup *fixup = kzalloc(sizeof(*fixup), GFP_KERNEL);
210 strlcpy(fixup->bus_id, bus_id, sizeof(fixup->bus_id));
211 fixup->phy_uid = phy_uid;
212 fixup->phy_uid_mask = phy_uid_mask;
215 mutex_lock(&phy_fixup_lock);
216 list_add_tail(&fixup->list, &phy_fixup_list);
217 mutex_unlock(&phy_fixup_lock);
221 EXPORT_SYMBOL(phy_register_fixup);
223 /* Registers a fixup to be run on any PHY with the UID in phy_uid */
224 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
225 int (*run)(struct phy_device *))
227 return phy_register_fixup(PHY_ANY_ID, phy_uid, phy_uid_mask, run);
229 EXPORT_SYMBOL(phy_register_fixup_for_uid);
231 /* Registers a fixup to be run on the PHY with id string bus_id */
232 int phy_register_fixup_for_id(const char *bus_id,
233 int (*run)(struct phy_device *))
235 return phy_register_fixup(bus_id, PHY_ANY_UID, 0xffffffff, run);
237 EXPORT_SYMBOL(phy_register_fixup_for_id);
239 /* Returns 1 if fixup matches phydev in bus_id and phy_uid.
240 * Fixups can be set to match any in one or more fields.
242 static int phy_needs_fixup(struct phy_device *phydev, struct phy_fixup *fixup)
244 if (strcmp(fixup->bus_id, phydev_name(phydev)) != 0)
245 if (strcmp(fixup->bus_id, PHY_ANY_ID) != 0)
248 if ((fixup->phy_uid & fixup->phy_uid_mask) !=
249 (phydev->phy_id & fixup->phy_uid_mask))
250 if (fixup->phy_uid != PHY_ANY_UID)
256 /* Runs any matching fixups for this phydev */
257 static int phy_scan_fixups(struct phy_device *phydev)
259 struct phy_fixup *fixup;
261 mutex_lock(&phy_fixup_lock);
262 list_for_each_entry(fixup, &phy_fixup_list, list) {
263 if (phy_needs_fixup(phydev, fixup)) {
264 int err = fixup->run(phydev);
267 mutex_unlock(&phy_fixup_lock);
270 phydev->has_fixups = true;
273 mutex_unlock(&phy_fixup_lock);
278 static int phy_bus_match(struct device *dev, struct device_driver *drv)
280 struct phy_device *phydev = to_phy_device(dev);
281 struct phy_driver *phydrv = to_phy_driver(drv);
282 const int num_ids = ARRAY_SIZE(phydev->c45_ids.device_ids);
285 if (!(phydrv->mdiodrv.flags & MDIO_DEVICE_IS_PHY))
288 if (phydrv->match_phy_device)
289 return phydrv->match_phy_device(phydev);
291 if (phydev->is_c45) {
292 for (i = 1; i < num_ids; i++) {
293 if (!(phydev->c45_ids.devices_in_package & (1 << i)))
296 if ((phydrv->phy_id & phydrv->phy_id_mask) ==
297 (phydev->c45_ids.device_ids[i] &
298 phydrv->phy_id_mask))
303 return (phydrv->phy_id & phydrv->phy_id_mask) ==
304 (phydev->phy_id & phydrv->phy_id_mask);
308 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
310 struct phy_c45_device_ids *c45_ids)
312 struct phy_device *dev;
313 struct mdio_device *mdiodev;
315 /* We allocate the device, and initialize the default values */
316 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
318 return ERR_PTR(-ENOMEM);
320 mdiodev = &dev->mdio;
321 mdiodev->dev.release = phy_device_release;
322 mdiodev->dev.parent = &bus->dev;
323 mdiodev->dev.bus = &mdio_bus_type;
325 mdiodev->pm_ops = MDIO_BUS_PHY_PM_OPS;
326 mdiodev->bus_match = phy_bus_match;
327 mdiodev->addr = addr;
328 mdiodev->flags = MDIO_DEVICE_FLAG_PHY;
329 mdiodev->device_free = phy_mdio_device_free;
330 mdiodev->device_remove = phy_mdio_device_remove;
332 dev->speed = SPEED_UNKNOWN;
333 dev->duplex = DUPLEX_UNKNOWN;
337 dev->interface = PHY_INTERFACE_MODE_GMII;
339 dev->autoneg = AUTONEG_ENABLE;
341 dev->is_c45 = is_c45;
342 dev->phy_id = phy_id;
344 dev->c45_ids = *c45_ids;
345 dev->irq = bus->irq[addr];
346 dev_set_name(&mdiodev->dev, PHY_ID_FMT, bus->id, addr);
348 dev->state = PHY_DOWN;
350 mutex_init(&dev->lock);
351 INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine);
352 INIT_WORK(&dev->phy_queue, phy_change);
354 /* Request the appropriate module unconditionally; don't
355 * bother trying to do so only if it isn't already loaded,
356 * because that gets complicated. A hotplug event would have
357 * done an unconditional modprobe anyway.
358 * We don't do normal hotplug because it won't work for MDIO
359 * -- because it relies on the device staying around for long
360 * enough for the driver to get loaded. With MDIO, the NIC
361 * driver will get bored and give up as soon as it finds that
362 * there's no driver _already_ loaded.
364 request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT, MDIO_ID_ARGS(phy_id));
366 device_initialize(&mdiodev->dev);
370 EXPORT_SYMBOL(phy_device_create);
372 /* get_phy_c45_devs_in_pkg - reads a MMD's devices in package registers.
373 * @bus: the target MII bus
374 * @addr: PHY address on the MII bus
375 * @dev_addr: MMD address in the PHY.
376 * @devices_in_package: where to store the devices in package information.
378 * Description: reads devices in package registers of a MMD at @dev_addr
379 * from PHY at @addr on @bus.
381 * Returns: 0 on success, -EIO on failure.
383 static int get_phy_c45_devs_in_pkg(struct mii_bus *bus, int addr, int dev_addr,
384 u32 *devices_in_package)
386 int phy_reg, reg_addr;
388 reg_addr = MII_ADDR_C45 | dev_addr << 16 | MDIO_DEVS2;
389 phy_reg = mdiobus_read(bus, addr, reg_addr);
392 *devices_in_package = (phy_reg & 0xffff) << 16;
394 reg_addr = MII_ADDR_C45 | dev_addr << 16 | MDIO_DEVS1;
395 phy_reg = mdiobus_read(bus, addr, reg_addr);
398 *devices_in_package |= (phy_reg & 0xffff);
404 * get_phy_c45_ids - reads the specified addr for its 802.3-c45 IDs.
405 * @bus: the target MII bus
406 * @addr: PHY address on the MII bus
407 * @phy_id: where to store the ID retrieved.
408 * @c45_ids: where to store the c45 ID information.
410 * If the PHY devices-in-package appears to be valid, it and the
411 * corresponding identifiers are stored in @c45_ids, zero is stored
412 * in @phy_id. Otherwise 0xffffffff is stored in @phy_id. Returns
416 static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
417 struct phy_c45_device_ids *c45_ids) {
420 const int num_ids = ARRAY_SIZE(c45_ids->device_ids);
421 u32 *devs = &c45_ids->devices_in_package;
423 /* Find first non-zero Devices In package. Device zero is reserved
424 * for 802.3 c45 complied PHYs, so don't probe it at first.
426 for (i = 1; i < num_ids && *devs == 0; i++) {
427 phy_reg = get_phy_c45_devs_in_pkg(bus, addr, i, devs);
431 if ((*devs & 0x1fffffff) == 0x1fffffff) {
432 /* If mostly Fs, there is no device there,
433 * then let's continue to probe more, as some
434 * 10G PHYs have zero Devices In package,
435 * e.g. Cortina CS4315/CS4340 PHY.
437 phy_reg = get_phy_c45_devs_in_pkg(bus, addr, 0, devs);
440 /* no device there, let's get out of here */
441 if ((*devs & 0x1fffffff) == 0x1fffffff) {
442 *phy_id = 0xffffffff;
450 /* Now probe Device Identifiers for each device present. */
451 for (i = 1; i < num_ids; i++) {
452 if (!(c45_ids->devices_in_package & (1 << i)))
455 reg_addr = MII_ADDR_C45 | i << 16 | MII_PHYSID1;
456 phy_reg = mdiobus_read(bus, addr, reg_addr);
459 c45_ids->device_ids[i] = (phy_reg & 0xffff) << 16;
461 reg_addr = MII_ADDR_C45 | i << 16 | MII_PHYSID2;
462 phy_reg = mdiobus_read(bus, addr, reg_addr);
465 c45_ids->device_ids[i] |= (phy_reg & 0xffff);
472 * get_phy_id - reads the specified addr for its ID.
473 * @bus: the target MII bus
474 * @addr: PHY address on the MII bus
475 * @phy_id: where to store the ID retrieved.
476 * @is_c45: If true the PHY uses the 802.3 clause 45 protocol
477 * @c45_ids: where to store the c45 ID information.
479 * Description: In the case of a 802.3-c22 PHY, reads the ID registers
480 * of the PHY at @addr on the @bus, stores it in @phy_id and returns
483 * In the case of a 802.3-c45 PHY, get_phy_c45_ids() is invoked, and
484 * its return value is in turn returned.
487 static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
488 bool is_c45, struct phy_c45_device_ids *c45_ids)
493 return get_phy_c45_ids(bus, addr, phy_id, c45_ids);
495 /* Grab the bits from PHYIR1, and put them in the upper half */
496 phy_reg = mdiobus_read(bus, addr, MII_PHYSID1);
500 *phy_id = (phy_reg & 0xffff) << 16;
502 /* Grab the bits from PHYIR2, and put them in the lower half */
503 phy_reg = mdiobus_read(bus, addr, MII_PHYSID2);
507 *phy_id |= (phy_reg & 0xffff);
513 * get_phy_device - reads the specified PHY device and returns its @phy_device
515 * @bus: the target MII bus
516 * @addr: PHY address on the MII bus
517 * @is_c45: If true the PHY uses the 802.3 clause 45 protocol
519 * Description: Reads the ID registers of the PHY at @addr on the
520 * @bus, then allocates and returns the phy_device to represent it.
522 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
524 struct phy_c45_device_ids c45_ids = {0};
528 r = get_phy_id(bus, addr, &phy_id, is_c45, &c45_ids);
532 /* If the phy_id is mostly Fs, there is no device there */
533 if ((phy_id & 0x1fffffff) == 0x1fffffff)
534 return ERR_PTR(-ENODEV);
536 return phy_device_create(bus, addr, phy_id, is_c45, &c45_ids);
538 EXPORT_SYMBOL(get_phy_device);
541 phy_id_show(struct device *dev, struct device_attribute *attr, char *buf)
543 struct phy_device *phydev = to_phy_device(dev);
545 return sprintf(buf, "0x%.8lx\n", (unsigned long)phydev->phy_id);
547 static DEVICE_ATTR_RO(phy_id);
550 phy_interface_show(struct device *dev, struct device_attribute *attr, char *buf)
552 struct phy_device *phydev = to_phy_device(dev);
553 const char *mode = NULL;
555 if (phy_is_internal(phydev))
558 mode = phy_modes(phydev->interface);
560 return sprintf(buf, "%s\n", mode);
562 static DEVICE_ATTR_RO(phy_interface);
565 phy_has_fixups_show(struct device *dev, struct device_attribute *attr,
568 struct phy_device *phydev = to_phy_device(dev);
570 return sprintf(buf, "%d\n", phydev->has_fixups);
572 static DEVICE_ATTR_RO(phy_has_fixups);
574 static struct attribute *phy_dev_attrs[] = {
575 &dev_attr_phy_id.attr,
576 &dev_attr_phy_interface.attr,
577 &dev_attr_phy_has_fixups.attr,
580 ATTRIBUTE_GROUPS(phy_dev);
583 * phy_device_register - Register the phy device on the MDIO bus
584 * @phydev: phy_device structure to be added to the MDIO bus
586 int phy_device_register(struct phy_device *phydev)
590 err = mdiobus_register_device(&phydev->mdio);
594 /* Run all of the fixups for this PHY */
595 err = phy_scan_fixups(phydev);
597 pr_err("PHY %d failed to initialize\n", phydev->mdio.addr);
601 phydev->mdio.dev.groups = phy_dev_groups;
603 err = device_add(&phydev->mdio.dev);
605 pr_err("PHY %d failed to add\n", phydev->mdio.addr);
612 mdiobus_unregister_device(&phydev->mdio);
615 EXPORT_SYMBOL(phy_device_register);
618 * phy_device_remove - Remove a previously registered phy device from the MDIO bus
619 * @phydev: phy_device structure to remove
621 * This doesn't free the phy_device itself, it merely reverses the effects
622 * of phy_device_register(). Use phy_device_free() to free the device
623 * after calling this function.
625 void phy_device_remove(struct phy_device *phydev)
627 device_del(&phydev->mdio.dev);
628 mdiobus_unregister_device(&phydev->mdio);
630 EXPORT_SYMBOL(phy_device_remove);
633 * phy_find_first - finds the first PHY device on the bus
634 * @bus: the target MII bus
636 struct phy_device *phy_find_first(struct mii_bus *bus)
638 struct phy_device *phydev;
641 for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
642 phydev = mdiobus_get_phy(bus, addr);
648 EXPORT_SYMBOL(phy_find_first);
651 * phy_prepare_link - prepares the PHY layer to monitor link status
652 * @phydev: target phy_device struct
653 * @handler: callback function for link status change notifications
655 * Description: Tells the PHY infrastructure to handle the
656 * gory details on monitoring link status (whether through
657 * polling or an interrupt), and to call back to the
658 * connected device driver when the link status changes.
659 * If you want to monitor your own link state, don't call
662 static void phy_prepare_link(struct phy_device *phydev,
663 void (*handler)(struct net_device *))
665 phydev->adjust_link = handler;
669 * phy_connect_direct - connect an ethernet device to a specific phy_device
670 * @dev: the network device to connect
671 * @phydev: the pointer to the phy device
672 * @handler: callback function for state change notifications
673 * @interface: PHY device's interface
675 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
676 void (*handler)(struct net_device *),
677 phy_interface_t interface)
684 rc = phy_attach_direct(dev, phydev, phydev->dev_flags, interface);
688 phy_prepare_link(phydev, handler);
689 phy_start_machine(phydev);
691 phy_start_interrupts(phydev);
695 EXPORT_SYMBOL(phy_connect_direct);
698 * phy_connect - connect an ethernet device to a PHY device
699 * @dev: the network device to connect
700 * @bus_id: the id string of the PHY device to connect
701 * @handler: callback function for state change notifications
702 * @interface: PHY device's interface
704 * Description: Convenience function for connecting ethernet
705 * devices to PHY devices. The default behavior is for
706 * the PHY infrastructure to handle everything, and only notify
707 * the connected driver when the link status changes. If you
708 * don't want, or can't use the provided functionality, you may
709 * choose to call only the subset of functions which provide
710 * the desired functionality.
712 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
713 void (*handler)(struct net_device *),
714 phy_interface_t interface)
716 struct phy_device *phydev;
720 /* Search the list of PHY devices on the mdio bus for the
721 * PHY with the requested name
723 d = bus_find_device_by_name(&mdio_bus_type, NULL, bus_id);
725 pr_err("PHY %s not found\n", bus_id);
726 return ERR_PTR(-ENODEV);
728 phydev = to_phy_device(d);
730 rc = phy_connect_direct(dev, phydev, handler, interface);
737 EXPORT_SYMBOL(phy_connect);
740 * phy_disconnect - disable interrupts, stop state machine, and detach a PHY
742 * @phydev: target phy_device struct
744 void phy_disconnect(struct phy_device *phydev)
747 phy_stop_interrupts(phydev);
749 phy_stop_machine(phydev);
751 phydev->adjust_link = NULL;
755 EXPORT_SYMBOL(phy_disconnect);
758 * phy_poll_reset - Safely wait until a PHY reset has properly completed
759 * @phydev: The PHY device to poll
761 * Description: According to IEEE 802.3, Section 2, Subsection 22.2.4.1.1, as
762 * published in 2008, a PHY reset may take up to 0.5 seconds. The MII BMCR
763 * register must be polled until the BMCR_RESET bit clears.
765 * Furthermore, any attempts to write to PHY registers may have no effect
766 * or even generate MDIO bus errors until this is complete.
768 * Some PHYs (such as the Marvell 88E1111) don't entirely conform to the
769 * standard and do not fully reset after the BMCR_RESET bit is set, and may
770 * even *REQUIRE* a soft-reset to properly restart autonegotiation. In an
771 * effort to support such broken PHYs, this function is separate from the
772 * standard phy_init_hw() which will zero all the other bits in the BMCR
773 * and reapply all driver-specific and board-specific fixups.
775 static int phy_poll_reset(struct phy_device *phydev)
777 /* Poll until the reset bit clears (50ms per retry == 0.6 sec) */
778 unsigned int retries = 12;
783 ret = phy_read(phydev, MII_BMCR);
786 } while (ret & BMCR_RESET && --retries);
787 if (ret & BMCR_RESET)
790 /* Some chips (smsc911x) may still need up to another 1ms after the
791 * BMCR_RESET bit is cleared before they are usable.
797 int phy_init_hw(struct phy_device *phydev)
801 if (!phydev->drv || !phydev->drv->config_init)
804 if (phydev->drv->soft_reset)
805 ret = phydev->drv->soft_reset(phydev);
807 ret = genphy_soft_reset(phydev);
812 ret = phy_scan_fixups(phydev);
816 return phydev->drv->config_init(phydev);
818 EXPORT_SYMBOL(phy_init_hw);
820 void phy_attached_info(struct phy_device *phydev)
822 phy_attached_print(phydev, NULL);
824 EXPORT_SYMBOL(phy_attached_info);
826 #define ATTACHED_FMT "attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)"
827 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
830 dev_info(&phydev->mdio.dev, ATTACHED_FMT "\n",
831 phydev->drv->name, phydev_name(phydev),
836 dev_info(&phydev->mdio.dev, ATTACHED_FMT,
837 phydev->drv->name, phydev_name(phydev),
845 EXPORT_SYMBOL(phy_attached_print);
848 * phy_attach_direct - attach a network device to a given PHY device pointer
849 * @dev: network device to attach
850 * @phydev: Pointer to phy_device to attach
851 * @flags: PHY device's dev_flags
852 * @interface: PHY device's interface
854 * Description: Called by drivers to attach to a particular PHY
855 * device. The phy_device is found, and properly hooked up
856 * to the phy_driver. If no driver is attached, then a
857 * generic driver is used. The phy_device is given a ptr to
858 * the attaching device, and given a callback for link status
859 * change. The phy_device is returned to the attaching driver.
860 * This function takes a reference on the phy device.
862 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
863 u32 flags, phy_interface_t interface)
865 struct module *ndev_owner = dev->dev.parent->driver->owner;
866 struct mii_bus *bus = phydev->mdio.bus;
867 struct device *d = &phydev->mdio.dev;
868 bool using_genphy = false;
871 /* For Ethernet device drivers that register their own MDIO bus, we
872 * will have bus->owner match ndev_mod, so we do not want to increment
873 * our own module->refcnt here, otherwise we would not be able to
876 if (ndev_owner != bus->owner && !try_module_get(bus->owner)) {
877 dev_err(&dev->dev, "failed to get the bus module\n");
883 /* Assume that if there is no driver, that it doesn't
884 * exist, and we should use the genphy driver.
889 &genphy_driver[GENPHY_DRV_10G].mdiodrv.driver;
892 &genphy_driver[GENPHY_DRV_1G].mdiodrv.driver;
897 if (!try_module_get(d->driver->owner)) {
898 dev_err(&dev->dev, "failed to get the device driver module\n");
900 goto error_put_device;
904 err = d->driver->probe(d);
906 err = device_bind_driver(d);
909 goto error_module_put;
912 if (phydev->attached_dev) {
913 dev_err(&dev->dev, "PHY already attached\n");
918 phydev->attached_dev = dev;
919 dev->phydev = phydev;
921 phydev->dev_flags = flags;
923 phydev->interface = interface;
925 phydev->state = PHY_READY;
927 /* Initial carrier state is off as the phy is about to be
930 netif_carrier_off(phydev->attached_dev);
932 /* Do initial configuration here, now that
933 * we have certain key parameters
934 * (dev_flags and interface)
936 err = phy_init_hw(phydev);
945 /* phy_detach() does all of the cleanup below */
950 module_put(d->driver->owner);
953 if (ndev_owner != bus->owner)
954 module_put(bus->owner);
957 EXPORT_SYMBOL(phy_attach_direct);
960 * phy_attach - attach a network device to a particular PHY device
961 * @dev: network device to attach
962 * @bus_id: Bus ID of PHY device to attach
963 * @interface: PHY device's interface
965 * Description: Same as phy_attach_direct() except that a PHY bus_id
966 * string is passed instead of a pointer to a struct phy_device.
968 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
969 phy_interface_t interface)
971 struct bus_type *bus = &mdio_bus_type;
972 struct phy_device *phydev;
977 return ERR_PTR(-EINVAL);
979 /* Search the list of PHY devices on the mdio bus for the
980 * PHY with the requested name
982 d = bus_find_device_by_name(bus, NULL, bus_id);
984 pr_err("PHY %s not found\n", bus_id);
985 return ERR_PTR(-ENODEV);
987 phydev = to_phy_device(d);
989 rc = phy_attach_direct(dev, phydev, phydev->dev_flags, interface);
996 EXPORT_SYMBOL(phy_attach);
999 * phy_detach - detach a PHY device from its network device
1000 * @phydev: target phy_device struct
1002 * This detaches the phy device from its network device and the phy
1003 * driver, and drops the reference count taken in phy_attach_direct().
1005 void phy_detach(struct phy_device *phydev)
1007 struct net_device *dev = phydev->attached_dev;
1008 struct module *ndev_owner = dev->dev.parent->driver->owner;
1009 struct mii_bus *bus;
1012 phydev->attached_dev->phydev = NULL;
1013 phydev->attached_dev = NULL;
1014 phy_suspend(phydev);
1016 if (phydev->mdio.dev.driver)
1017 module_put(phydev->mdio.dev.driver->owner);
1019 /* If the device had no specific driver before (i.e. - it
1020 * was using the generic driver), we unbind the device
1021 * from the generic driver so that there's a chance a
1022 * real driver could be loaded
1024 for (i = 0; i < ARRAY_SIZE(genphy_driver); i++) {
1025 if (phydev->mdio.dev.driver ==
1026 &genphy_driver[i].mdiodrv.driver) {
1027 device_release_driver(&phydev->mdio.dev);
1033 * The phydev might go away on the put_device() below, so avoid
1034 * a use-after-free bug by reading the underlying bus first.
1036 bus = phydev->mdio.bus;
1038 put_device(&phydev->mdio.dev);
1039 if (ndev_owner != bus->owner)
1040 module_put(bus->owner);
1042 EXPORT_SYMBOL(phy_detach);
1044 int phy_suspend(struct phy_device *phydev)
1046 struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
1047 struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
1050 /* If the device has WOL enabled, we cannot suspend the PHY */
1051 phy_ethtool_get_wol(phydev, &wol);
1055 if (phydrv->suspend)
1056 ret = phydrv->suspend(phydev);
1061 phydev->suspended = true;
1065 EXPORT_SYMBOL(phy_suspend);
1067 int phy_resume(struct phy_device *phydev)
1069 struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
1073 ret = phydrv->resume(phydev);
1078 phydev->suspended = false;
1082 EXPORT_SYMBOL(phy_resume);
1084 /* Generic PHY support and helper functions */
1087 * genphy_config_advert - sanitize and advertise auto-negotiation parameters
1088 * @phydev: target phy_device struct
1090 * Description: Writes MII_ADVERTISE with the appropriate values,
1091 * after sanitizing the values to make sure we only advertise
1092 * what is supported. Returns < 0 on error, 0 if the PHY's advertisement
1093 * hasn't changed, and > 0 if it has changed.
1095 static int genphy_config_advert(struct phy_device *phydev)
1098 int oldadv, adv, bmsr;
1099 int err, changed = 0;
1101 /* Only allow advertising what this PHY supports */
1102 phydev->advertising &= phydev->supported;
1103 advertise = phydev->advertising;
1105 /* Setup standard advertisement */
1106 adv = phy_read(phydev, MII_ADVERTISE);
1111 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP |
1112 ADVERTISE_PAUSE_ASYM);
1113 adv |= ethtool_adv_to_mii_adv_t(advertise);
1115 if (adv != oldadv) {
1116 err = phy_write(phydev, MII_ADVERTISE, adv);
1123 bmsr = phy_read(phydev, MII_BMSR);
1127 /* Per 802.3-2008, Section 22.2.4.2.16 Extended status all
1128 * 1000Mbits/sec capable PHYs shall have the BMSR_ESTATEN bit set to a
1131 if (!(bmsr & BMSR_ESTATEN))
1134 /* Configure gigabit if it's supported */
1135 adv = phy_read(phydev, MII_CTRL1000);
1140 adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
1142 if (phydev->supported & (SUPPORTED_1000baseT_Half |
1143 SUPPORTED_1000baseT_Full)) {
1144 adv |= ethtool_adv_to_mii_ctrl1000_t(advertise);
1150 err = phy_write(phydev, MII_CTRL1000, adv);
1158 * genphy_config_eee_advert - disable unwanted eee mode advertisement
1159 * @phydev: target phy_device struct
1161 * Description: Writes MDIO_AN_EEE_ADV after disabling unsupported energy
1162 * efficent ethernet modes. Returns 0 if the PHY's advertisement hasn't
1163 * changed, and 1 if it has changed.
1165 static int genphy_config_eee_advert(struct phy_device *phydev)
1167 int broken = phydev->eee_broken_modes;
1170 /* Nothing to disable */
1174 /* If the following call fails, we assume that EEE is not
1175 * supported by the phy. If we read 0, EEE is not advertised
1176 * In both case, we don't need to continue
1178 adv = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN);
1185 /* Advertising remains unchanged with the broken mask */
1189 phy_write_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, adv);
1195 * genphy_setup_forced - configures/forces speed/duplex from @phydev
1196 * @phydev: target phy_device struct
1198 * Description: Configures MII_BMCR to force speed/duplex
1199 * to the values in phydev. Assumes that the values are valid.
1200 * Please see phy_sanitize_settings().
1202 int genphy_setup_forced(struct phy_device *phydev)
1204 int ctl = phy_read(phydev, MII_BMCR);
1206 ctl &= BMCR_LOOPBACK | BMCR_ISOLATE | BMCR_PDOWN;
1208 phydev->asym_pause = 0;
1210 if (SPEED_1000 == phydev->speed)
1211 ctl |= BMCR_SPEED1000;
1212 else if (SPEED_100 == phydev->speed)
1213 ctl |= BMCR_SPEED100;
1215 if (DUPLEX_FULL == phydev->duplex)
1216 ctl |= BMCR_FULLDPLX;
1218 return phy_write(phydev, MII_BMCR, ctl);
1220 EXPORT_SYMBOL(genphy_setup_forced);
1223 * genphy_restart_aneg - Enable and Restart Autonegotiation
1224 * @phydev: target phy_device struct
1226 int genphy_restart_aneg(struct phy_device *phydev)
1228 int ctl = phy_read(phydev, MII_BMCR);
1233 ctl |= BMCR_ANENABLE | BMCR_ANRESTART;
1235 /* Don't isolate the PHY if we're negotiating */
1236 ctl &= ~BMCR_ISOLATE;
1238 return phy_write(phydev, MII_BMCR, ctl);
1240 EXPORT_SYMBOL(genphy_restart_aneg);
1243 * genphy_config_aneg - restart auto-negotiation or write BMCR
1244 * @phydev: target phy_device struct
1246 * Description: If auto-negotiation is enabled, we configure the
1247 * advertising, and then restart auto-negotiation. If it is not
1248 * enabled, then we write the BMCR.
1250 int genphy_config_aneg(struct phy_device *phydev)
1254 changed = genphy_config_eee_advert(phydev);
1256 if (AUTONEG_ENABLE != phydev->autoneg)
1257 return genphy_setup_forced(phydev);
1259 err = genphy_config_advert(phydev);
1260 if (err < 0) /* error */
1266 /* Advertisement hasn't changed, but maybe aneg was never on to
1267 * begin with? Or maybe phy was isolated?
1269 int ctl = phy_read(phydev, MII_BMCR);
1274 if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
1275 changed = 1; /* do restart aneg */
1278 /* Only restart aneg if we are advertising something different
1279 * than we were before.
1282 return genphy_restart_aneg(phydev);
1286 EXPORT_SYMBOL(genphy_config_aneg);
1289 * genphy_aneg_done - return auto-negotiation status
1290 * @phydev: target phy_device struct
1292 * Description: Reads the status register and returns 0 either if
1293 * auto-negotiation is incomplete, or if there was an error.
1294 * Returns BMSR_ANEGCOMPLETE if auto-negotiation is done.
1296 int genphy_aneg_done(struct phy_device *phydev)
1298 int retval = phy_read(phydev, MII_BMSR);
1300 return (retval < 0) ? retval : (retval & BMSR_ANEGCOMPLETE);
1302 EXPORT_SYMBOL(genphy_aneg_done);
1304 static int gen10g_config_aneg(struct phy_device *phydev)
1310 * genphy_update_link - update link status in @phydev
1311 * @phydev: target phy_device struct
1313 * Description: Update the value in phydev->link to reflect the
1314 * current link value. In order to do this, we need to read
1315 * the status register twice, keeping the second value.
1317 int genphy_update_link(struct phy_device *phydev)
1321 /* Do a fake read */
1322 status = phy_read(phydev, MII_BMSR);
1326 /* Read link and autonegotiation status */
1327 status = phy_read(phydev, MII_BMSR);
1331 if ((status & BMSR_LSTATUS) == 0)
1338 EXPORT_SYMBOL(genphy_update_link);
1341 * genphy_read_status - check the link status and update current link state
1342 * @phydev: target phy_device struct
1344 * Description: Check the link, then figure out the current state
1345 * by comparing what we advertise with what the link partner
1346 * advertises. Start by checking the gigabit possibilities,
1347 * then move on to 10/100.
1349 int genphy_read_status(struct phy_device *phydev)
1356 int common_adv_gb = 0;
1358 /* Update the link, but return if there was an error */
1359 err = genphy_update_link(phydev);
1363 phydev->lp_advertising = 0;
1365 if (AUTONEG_ENABLE == phydev->autoneg) {
1366 if (phydev->supported & (SUPPORTED_1000baseT_Half
1367 | SUPPORTED_1000baseT_Full)) {
1368 lpagb = phy_read(phydev, MII_STAT1000);
1372 adv = phy_read(phydev, MII_CTRL1000);
1376 phydev->lp_advertising =
1377 mii_stat1000_to_ethtool_lpa_t(lpagb);
1378 common_adv_gb = lpagb & adv << 2;
1381 lpa = phy_read(phydev, MII_LPA);
1385 phydev->lp_advertising |= mii_lpa_to_ethtool_lpa_t(lpa);
1387 adv = phy_read(phydev, MII_ADVERTISE);
1391 common_adv = lpa & adv;
1393 phydev->speed = SPEED_10;
1394 phydev->duplex = DUPLEX_HALF;
1396 phydev->asym_pause = 0;
1398 if (common_adv_gb & (LPA_1000FULL | LPA_1000HALF)) {
1399 phydev->speed = SPEED_1000;
1401 if (common_adv_gb & LPA_1000FULL)
1402 phydev->duplex = DUPLEX_FULL;
1403 } else if (common_adv & (LPA_100FULL | LPA_100HALF)) {
1404 phydev->speed = SPEED_100;
1406 if (common_adv & LPA_100FULL)
1407 phydev->duplex = DUPLEX_FULL;
1409 if (common_adv & LPA_10FULL)
1410 phydev->duplex = DUPLEX_FULL;
1412 if (phydev->duplex == DUPLEX_FULL) {
1413 phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
1414 phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
1417 int bmcr = phy_read(phydev, MII_BMCR);
1422 if (bmcr & BMCR_FULLDPLX)
1423 phydev->duplex = DUPLEX_FULL;
1425 phydev->duplex = DUPLEX_HALF;
1427 if (bmcr & BMCR_SPEED1000)
1428 phydev->speed = SPEED_1000;
1429 else if (bmcr & BMCR_SPEED100)
1430 phydev->speed = SPEED_100;
1432 phydev->speed = SPEED_10;
1435 phydev->asym_pause = 0;
1440 EXPORT_SYMBOL(genphy_read_status);
1442 static int gen10g_read_status(struct phy_device *phydev)
1445 u32 mmd_mask = phydev->c45_ids.devices_in_package;
1449 /* For now just lie and say it's 10G all the time */
1450 phydev->speed = SPEED_10000;
1451 phydev->duplex = DUPLEX_FULL;
1453 for (devad = 0; mmd_mask; devad++, mmd_mask = mmd_mask >> 1) {
1454 if (!(mmd_mask & 1))
1457 /* Read twice because link state is latched and a
1458 * read moves the current state into the register
1460 phy_read_mmd(phydev, devad, MDIO_STAT1);
1461 reg = phy_read_mmd(phydev, devad, MDIO_STAT1);
1462 if (reg < 0 || !(reg & MDIO_STAT1_LSTATUS))
1470 * genphy_soft_reset - software reset the PHY via BMCR_RESET bit
1471 * @phydev: target phy_device struct
1473 * Description: Perform a software PHY reset using the standard
1474 * BMCR_RESET bit and poll for the reset bit to be cleared.
1476 * Returns: 0 on success, < 0 on failure
1478 int genphy_soft_reset(struct phy_device *phydev)
1482 ret = phy_write(phydev, MII_BMCR, BMCR_RESET);
1486 return phy_poll_reset(phydev);
1488 EXPORT_SYMBOL(genphy_soft_reset);
1490 int genphy_config_init(struct phy_device *phydev)
1495 features = (SUPPORTED_TP | SUPPORTED_MII
1496 | SUPPORTED_AUI | SUPPORTED_FIBRE |
1497 SUPPORTED_BNC | SUPPORTED_Pause | SUPPORTED_Asym_Pause);
1499 /* Do we support autonegotiation? */
1500 val = phy_read(phydev, MII_BMSR);
1504 if (val & BMSR_ANEGCAPABLE)
1505 features |= SUPPORTED_Autoneg;
1507 if (val & BMSR_100FULL)
1508 features |= SUPPORTED_100baseT_Full;
1509 if (val & BMSR_100HALF)
1510 features |= SUPPORTED_100baseT_Half;
1511 if (val & BMSR_10FULL)
1512 features |= SUPPORTED_10baseT_Full;
1513 if (val & BMSR_10HALF)
1514 features |= SUPPORTED_10baseT_Half;
1516 if (val & BMSR_ESTATEN) {
1517 val = phy_read(phydev, MII_ESTATUS);
1521 if (val & ESTATUS_1000_TFULL)
1522 features |= SUPPORTED_1000baseT_Full;
1523 if (val & ESTATUS_1000_THALF)
1524 features |= SUPPORTED_1000baseT_Half;
1527 phydev->supported &= features;
1528 phydev->advertising &= features;
1533 static int gen10g_soft_reset(struct phy_device *phydev)
1535 /* Do nothing for now */
1538 EXPORT_SYMBOL(genphy_config_init);
1540 static int gen10g_config_init(struct phy_device *phydev)
1542 /* Temporarily just say we support everything */
1543 phydev->supported = SUPPORTED_10000baseT_Full;
1544 phydev->advertising = SUPPORTED_10000baseT_Full;
1549 int genphy_suspend(struct phy_device *phydev)
1553 mutex_lock(&phydev->lock);
1555 value = phy_read(phydev, MII_BMCR);
1556 phy_write(phydev, MII_BMCR, value | BMCR_PDOWN);
1558 mutex_unlock(&phydev->lock);
1562 EXPORT_SYMBOL(genphy_suspend);
1564 static int gen10g_suspend(struct phy_device *phydev)
1569 int genphy_resume(struct phy_device *phydev)
1573 mutex_lock(&phydev->lock);
1575 value = phy_read(phydev, MII_BMCR);
1576 phy_write(phydev, MII_BMCR, value & ~BMCR_PDOWN);
1578 mutex_unlock(&phydev->lock);
1582 EXPORT_SYMBOL(genphy_resume);
1584 static int gen10g_resume(struct phy_device *phydev)
1589 static int __set_phy_supported(struct phy_device *phydev, u32 max_speed)
1591 switch (max_speed) {
1593 phydev->supported &= ~PHY_100BT_FEATURES;
1596 phydev->supported &= ~PHY_1000BT_FEATURES;
1607 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed)
1611 err = __set_phy_supported(phydev, max_speed);
1615 phydev->advertising = phydev->supported;
1619 EXPORT_SYMBOL(phy_set_max_speed);
1621 static void of_set_phy_supported(struct phy_device *phydev)
1623 struct device_node *node = phydev->mdio.dev.of_node;
1626 if (!IS_ENABLED(CONFIG_OF_MDIO))
1632 if (!of_property_read_u32(node, "max-speed", &max_speed))
1633 __set_phy_supported(phydev, max_speed);
1636 static void of_set_phy_eee_broken(struct phy_device *phydev)
1638 struct device_node *node = phydev->mdio.dev.of_node;
1641 if (!IS_ENABLED(CONFIG_OF_MDIO))
1647 if (of_property_read_bool(node, "eee-broken-100tx"))
1648 broken |= MDIO_EEE_100TX;
1649 if (of_property_read_bool(node, "eee-broken-1000t"))
1650 broken |= MDIO_EEE_1000T;
1651 if (of_property_read_bool(node, "eee-broken-10gt"))
1652 broken |= MDIO_EEE_10GT;
1653 if (of_property_read_bool(node, "eee-broken-1000kx"))
1654 broken |= MDIO_EEE_1000KX;
1655 if (of_property_read_bool(node, "eee-broken-10gkx4"))
1656 broken |= MDIO_EEE_10GKX4;
1657 if (of_property_read_bool(node, "eee-broken-10gkr"))
1658 broken |= MDIO_EEE_10GKR;
1660 phydev->eee_broken_modes = broken;
1664 * phy_probe - probe and init a PHY device
1665 * @dev: device to probe and init
1667 * Description: Take care of setting up the phy_device structure,
1668 * set the state to READY (the driver's init function should
1669 * set it to STARTING if needed).
1671 static int phy_probe(struct device *dev)
1673 struct phy_device *phydev = to_phy_device(dev);
1674 struct device_driver *drv = phydev->mdio.dev.driver;
1675 struct phy_driver *phydrv = to_phy_driver(drv);
1678 phydev->drv = phydrv;
1680 /* Disable the interrupt if the PHY doesn't support it
1681 * but the interrupt is still a valid one
1683 if (!(phydrv->flags & PHY_HAS_INTERRUPT) &&
1684 phy_interrupt_is_valid(phydev))
1685 phydev->irq = PHY_POLL;
1687 if (phydrv->flags & PHY_IS_INTERNAL)
1688 phydev->is_internal = true;
1690 mutex_lock(&phydev->lock);
1692 /* Start out supporting everything. Eventually,
1693 * a controller will attach, and may modify one
1694 * or both of these values
1696 phydev->supported = phydrv->features;
1697 of_set_phy_supported(phydev);
1698 phydev->advertising = phydev->supported;
1700 /* Get the EEE modes we want to prohibit. We will ask
1701 * the PHY stop advertising these mode later on
1703 of_set_phy_eee_broken(phydev);
1705 /* Set the state to READY by default */
1706 phydev->state = PHY_READY;
1708 if (phydev->drv->probe)
1709 err = phydev->drv->probe(phydev);
1711 mutex_unlock(&phydev->lock);
1716 static int phy_remove(struct device *dev)
1718 struct phy_device *phydev = to_phy_device(dev);
1720 cancel_delayed_work_sync(&phydev->state_queue);
1722 mutex_lock(&phydev->lock);
1723 phydev->state = PHY_DOWN;
1724 mutex_unlock(&phydev->lock);
1726 if (phydev->drv->remove)
1727 phydev->drv->remove(phydev);
1734 * phy_driver_register - register a phy_driver with the PHY layer
1735 * @new_driver: new phy_driver to register
1736 * @owner: module owning this PHY
1738 int phy_driver_register(struct phy_driver *new_driver, struct module *owner)
1742 new_driver->mdiodrv.flags |= MDIO_DEVICE_IS_PHY;
1743 new_driver->mdiodrv.driver.name = new_driver->name;
1744 new_driver->mdiodrv.driver.bus = &mdio_bus_type;
1745 new_driver->mdiodrv.driver.probe = phy_probe;
1746 new_driver->mdiodrv.driver.remove = phy_remove;
1747 new_driver->mdiodrv.driver.owner = owner;
1749 retval = driver_register(&new_driver->mdiodrv.driver);
1751 pr_err("%s: Error %d in registering driver\n",
1752 new_driver->name, retval);
1757 pr_debug("%s: Registered new driver\n", new_driver->name);
1761 EXPORT_SYMBOL(phy_driver_register);
1763 int phy_drivers_register(struct phy_driver *new_driver, int n,
1764 struct module *owner)
1768 for (i = 0; i < n; i++) {
1769 ret = phy_driver_register(new_driver + i, owner);
1772 phy_driver_unregister(new_driver + i);
1778 EXPORT_SYMBOL(phy_drivers_register);
1780 void phy_driver_unregister(struct phy_driver *drv)
1782 driver_unregister(&drv->mdiodrv.driver);
1784 EXPORT_SYMBOL(phy_driver_unregister);
1786 void phy_drivers_unregister(struct phy_driver *drv, int n)
1790 for (i = 0; i < n; i++)
1791 phy_driver_unregister(drv + i);
1793 EXPORT_SYMBOL(phy_drivers_unregister);
1795 static struct phy_driver genphy_driver[] = {
1797 .phy_id = 0xffffffff,
1798 .phy_id_mask = 0xffffffff,
1799 .name = "Generic PHY",
1800 .soft_reset = genphy_no_soft_reset,
1801 .config_init = genphy_config_init,
1802 .features = PHY_GBIT_FEATURES | SUPPORTED_MII |
1803 SUPPORTED_AUI | SUPPORTED_FIBRE |
1805 .config_aneg = genphy_config_aneg,
1806 .aneg_done = genphy_aneg_done,
1807 .read_status = genphy_read_status,
1808 .suspend = genphy_suspend,
1809 .resume = genphy_resume,
1811 .phy_id = 0xffffffff,
1812 .phy_id_mask = 0xffffffff,
1813 .name = "Generic 10G PHY",
1814 .soft_reset = gen10g_soft_reset,
1815 .config_init = gen10g_config_init,
1817 .config_aneg = gen10g_config_aneg,
1818 .read_status = gen10g_read_status,
1819 .suspend = gen10g_suspend,
1820 .resume = gen10g_resume,
1823 static int __init phy_init(void)
1827 rc = mdio_bus_init();
1831 rc = phy_drivers_register(genphy_driver,
1832 ARRAY_SIZE(genphy_driver), THIS_MODULE);
1839 static void __exit phy_exit(void)
1841 phy_drivers_unregister(genphy_driver,
1842 ARRAY_SIZE(genphy_driver));
1846 subsys_initcall(phy_init);
1847 module_exit(phy_exit);