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>
37 #include <linux/gpio/consumer.h>
41 MODULE_DESCRIPTION("PHY library");
42 MODULE_AUTHOR("Andy Fleming");
43 MODULE_LICENSE("GPL");
45 void phy_device_free(struct phy_device
*phydev
)
47 put_device(&phydev
->mdio
.dev
);
49 EXPORT_SYMBOL(phy_device_free
);
51 static void phy_mdio_device_free(struct mdio_device
*mdiodev
)
53 struct phy_device
*phydev
;
55 phydev
= container_of(mdiodev
, struct phy_device
, mdio
);
56 phy_device_free(phydev
);
59 static void phy_device_release(struct device
*dev
)
61 kfree(to_phy_device(dev
));
64 static void phy_mdio_device_remove(struct mdio_device
*mdiodev
)
66 struct phy_device
*phydev
;
68 phydev
= container_of(mdiodev
, struct phy_device
, mdio
);
69 phy_device_remove(phydev
);
78 static struct phy_driver genphy_driver
[GENPHY_DRV_MAX
];
80 static LIST_HEAD(phy_fixup_list
);
81 static DEFINE_MUTEX(phy_fixup_lock
);
84 static bool mdio_bus_phy_may_suspend(struct phy_device
*phydev
)
86 struct device_driver
*drv
= phydev
->mdio
.dev
.driver
;
87 struct phy_driver
*phydrv
= to_phy_driver(drv
);
88 struct net_device
*netdev
= phydev
->attached_dev
;
90 if (!drv
|| !phydrv
->suspend
)
93 /* PHY not attached? May suspend if the PHY has not already been
94 * suspended as part of a prior call to phy_disconnect() ->
95 * phy_detach() -> phy_suspend() because the parent netdev might be the
96 * MDIO bus driver and clock gated at this point.
99 return !phydev
->suspended
;
101 /* Don't suspend PHY if the attached netdev parent may wakeup.
102 * The parent may point to a PCI device, as in tg3 driver.
104 if (netdev
->dev
.parent
&& device_may_wakeup(netdev
->dev
.parent
))
107 /* Also don't suspend PHY if the netdev itself may wakeup. This
108 * is the case for devices w/o underlaying pwr. mgmt. aware bus,
111 if (device_may_wakeup(&netdev
->dev
))
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 return phy_suspend(phydev
);
135 static int mdio_bus_phy_resume(struct device
*dev
)
137 struct phy_device
*phydev
= to_phy_device(dev
);
140 if (!mdio_bus_phy_may_suspend(phydev
))
143 ret
= phy_resume(phydev
);
148 if (phydev
->attached_dev
&& phydev
->adjust_link
)
149 phy_start_machine(phydev
);
154 static int mdio_bus_phy_restore(struct device
*dev
)
156 struct phy_device
*phydev
= to_phy_device(dev
);
157 struct net_device
*netdev
= phydev
->attached_dev
;
163 ret
= phy_init_hw(phydev
);
167 /* The PHY needs to renegotiate. */
169 phydev
->state
= PHY_UP
;
171 phy_start_machine(phydev
);
176 static const struct dev_pm_ops mdio_bus_phy_pm_ops
= {
177 .suspend
= mdio_bus_phy_suspend
,
178 .resume
= mdio_bus_phy_resume
,
179 .freeze
= mdio_bus_phy_suspend
,
180 .thaw
= mdio_bus_phy_resume
,
181 .restore
= mdio_bus_phy_restore
,
184 #define MDIO_BUS_PHY_PM_OPS (&mdio_bus_phy_pm_ops)
188 #define MDIO_BUS_PHY_PM_OPS NULL
190 #endif /* CONFIG_PM */
193 * phy_register_fixup - creates a new phy_fixup and adds it to the list
194 * @bus_id: A string which matches phydev->mdio.dev.bus_id (or PHY_ANY_ID)
195 * @phy_uid: Used to match against phydev->phy_id (the UID of the PHY)
196 * It can also be PHY_ANY_UID
197 * @phy_uid_mask: Applied to phydev->phy_id and fixup->phy_uid before
199 * @run: The actual code to be run when a matching PHY is found
201 int phy_register_fixup(const char *bus_id
, u32 phy_uid
, u32 phy_uid_mask
,
202 int (*run
)(struct phy_device
*))
204 struct phy_fixup
*fixup
= kzalloc(sizeof(*fixup
), GFP_KERNEL
);
209 strlcpy(fixup
->bus_id
, bus_id
, sizeof(fixup
->bus_id
));
210 fixup
->phy_uid
= phy_uid
;
211 fixup
->phy_uid_mask
= phy_uid_mask
;
214 mutex_lock(&phy_fixup_lock
);
215 list_add_tail(&fixup
->list
, &phy_fixup_list
);
216 mutex_unlock(&phy_fixup_lock
);
220 EXPORT_SYMBOL(phy_register_fixup
);
222 /* Registers a fixup to be run on any PHY with the UID in phy_uid */
223 int phy_register_fixup_for_uid(u32 phy_uid
, u32 phy_uid_mask
,
224 int (*run
)(struct phy_device
*))
226 return phy_register_fixup(PHY_ANY_ID
, phy_uid
, phy_uid_mask
, run
);
228 EXPORT_SYMBOL(phy_register_fixup_for_uid
);
230 /* Registers a fixup to be run on the PHY with id string bus_id */
231 int phy_register_fixup_for_id(const char *bus_id
,
232 int (*run
)(struct phy_device
*))
234 return phy_register_fixup(bus_id
, PHY_ANY_UID
, 0xffffffff, run
);
236 EXPORT_SYMBOL(phy_register_fixup_for_id
);
238 /* Returns 1 if fixup matches phydev in bus_id and phy_uid.
239 * Fixups can be set to match any in one or more fields.
241 static int phy_needs_fixup(struct phy_device
*phydev
, struct phy_fixup
*fixup
)
243 if (strcmp(fixup
->bus_id
, phydev_name(phydev
)) != 0)
244 if (strcmp(fixup
->bus_id
, PHY_ANY_ID
) != 0)
247 if ((fixup
->phy_uid
& fixup
->phy_uid_mask
) !=
248 (phydev
->phy_id
& fixup
->phy_uid_mask
))
249 if (fixup
->phy_uid
!= PHY_ANY_UID
)
255 /* Runs any matching fixups for this phydev */
256 static int phy_scan_fixups(struct phy_device
*phydev
)
258 struct phy_fixup
*fixup
;
260 mutex_lock(&phy_fixup_lock
);
261 list_for_each_entry(fixup
, &phy_fixup_list
, list
) {
262 if (phy_needs_fixup(phydev
, fixup
)) {
263 int err
= fixup
->run(phydev
);
266 mutex_unlock(&phy_fixup_lock
);
269 phydev
->has_fixups
= true;
272 mutex_unlock(&phy_fixup_lock
);
277 static int phy_bus_match(struct device
*dev
, struct device_driver
*drv
)
279 struct phy_device
*phydev
= to_phy_device(dev
);
280 struct phy_driver
*phydrv
= to_phy_driver(drv
);
281 const int num_ids
= ARRAY_SIZE(phydev
->c45_ids
.device_ids
);
284 if (!(phydrv
->mdiodrv
.flags
& MDIO_DEVICE_IS_PHY
))
287 if (phydrv
->match_phy_device
)
288 return phydrv
->match_phy_device(phydev
);
290 if (phydev
->is_c45
) {
291 for (i
= 1; i
< num_ids
; i
++) {
292 if (!(phydev
->c45_ids
.devices_in_package
& (1 << i
)))
295 if ((phydrv
->phy_id
& phydrv
->phy_id_mask
) ==
296 (phydev
->c45_ids
.device_ids
[i
] &
297 phydrv
->phy_id_mask
))
302 return (phydrv
->phy_id
& phydrv
->phy_id_mask
) ==
303 (phydev
->phy_id
& phydrv
->phy_id_mask
);
307 struct phy_device
*phy_device_create(struct mii_bus
*bus
, int addr
, int phy_id
,
309 struct phy_c45_device_ids
*c45_ids
)
311 struct phy_device
*dev
;
312 struct mdio_device
*mdiodev
;
314 /* We allocate the device, and initialize the default values */
315 dev
= kzalloc(sizeof(*dev
), GFP_KERNEL
);
317 return ERR_PTR(-ENOMEM
);
319 mdiodev
= &dev
->mdio
;
320 mdiodev
->dev
.release
= phy_device_release
;
321 mdiodev
->dev
.parent
= &bus
->dev
;
322 mdiodev
->dev
.bus
= &mdio_bus_type
;
324 mdiodev
->pm_ops
= MDIO_BUS_PHY_PM_OPS
;
325 mdiodev
->bus_match
= phy_bus_match
;
326 mdiodev
->addr
= addr
;
327 mdiodev
->flags
= MDIO_DEVICE_FLAG_PHY
;
328 mdiodev
->device_free
= phy_mdio_device_free
;
329 mdiodev
->device_remove
= phy_mdio_device_remove
;
336 dev
->interface
= PHY_INTERFACE_MODE_GMII
;
338 dev
->autoneg
= AUTONEG_ENABLE
;
340 dev
->is_c45
= is_c45
;
341 dev
->phy_id
= phy_id
;
343 dev
->c45_ids
= *c45_ids
;
344 dev
->irq
= bus
->irq
[addr
];
345 dev_set_name(&mdiodev
->dev
, PHY_ID_FMT
, bus
->id
, addr
);
347 dev
->state
= PHY_DOWN
;
349 mutex_init(&dev
->lock
);
350 INIT_DELAYED_WORK(&dev
->state_queue
, phy_state_machine
);
351 INIT_WORK(&dev
->phy_queue
, phy_change
);
353 /* Request the appropriate module unconditionally; don't
354 * bother trying to do so only if it isn't already loaded,
355 * because that gets complicated. A hotplug event would have
356 * done an unconditional modprobe anyway.
357 * We don't do normal hotplug because it won't work for MDIO
358 * -- because it relies on the device staying around for long
359 * enough for the driver to get loaded. With MDIO, the NIC
360 * driver will get bored and give up as soon as it finds that
361 * there's no driver _already_ loaded.
363 request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT
, MDIO_ID_ARGS(phy_id
));
365 device_initialize(&mdiodev
->dev
);
369 EXPORT_SYMBOL(phy_device_create
);
371 /* get_phy_c45_devs_in_pkg - reads a MMD's devices in package registers.
372 * @bus: the target MII bus
373 * @addr: PHY address on the MII bus
374 * @dev_addr: MMD address in the PHY.
375 * @devices_in_package: where to store the devices in package information.
377 * Description: reads devices in package registers of a MMD at @dev_addr
378 * from PHY at @addr on @bus.
380 * Returns: 0 on success, -EIO on failure.
382 static int get_phy_c45_devs_in_pkg(struct mii_bus
*bus
, int addr
, int dev_addr
,
383 u32
*devices_in_package
)
385 int phy_reg
, reg_addr
;
387 reg_addr
= MII_ADDR_C45
| dev_addr
<< 16 | MDIO_DEVS2
;
388 phy_reg
= mdiobus_read(bus
, addr
, reg_addr
);
391 *devices_in_package
= (phy_reg
& 0xffff) << 16;
393 reg_addr
= MII_ADDR_C45
| dev_addr
<< 16 | MDIO_DEVS1
;
394 phy_reg
= mdiobus_read(bus
, addr
, reg_addr
);
397 *devices_in_package
|= (phy_reg
& 0xffff);
403 * get_phy_c45_ids - reads the specified addr for its 802.3-c45 IDs.
404 * @bus: the target MII bus
405 * @addr: PHY address on the MII bus
406 * @phy_id: where to store the ID retrieved.
407 * @c45_ids: where to store the c45 ID information.
409 * If the PHY devices-in-package appears to be valid, it and the
410 * corresponding identifiers are stored in @c45_ids, zero is stored
411 * in @phy_id. Otherwise 0xffffffff is stored in @phy_id. Returns
415 static int get_phy_c45_ids(struct mii_bus
*bus
, int addr
, u32
*phy_id
,
416 struct phy_c45_device_ids
*c45_ids
) {
419 const int num_ids
= ARRAY_SIZE(c45_ids
->device_ids
);
420 u32
*devs
= &c45_ids
->devices_in_package
;
422 /* Find first non-zero Devices In package. Device zero is reserved
423 * for 802.3 c45 complied PHYs, so don't probe it at first.
425 for (i
= 1; i
< num_ids
&& *devs
== 0; i
++) {
426 phy_reg
= get_phy_c45_devs_in_pkg(bus
, addr
, i
, devs
);
430 if ((*devs
& 0x1fffffff) == 0x1fffffff) {
431 /* If mostly Fs, there is no device there,
432 * then let's continue to probe more, as some
433 * 10G PHYs have zero Devices In package,
434 * e.g. Cortina CS4315/CS4340 PHY.
436 phy_reg
= get_phy_c45_devs_in_pkg(bus
, addr
, 0, devs
);
439 /* no device there, let's get out of here */
440 if ((*devs
& 0x1fffffff) == 0x1fffffff) {
441 *phy_id
= 0xffffffff;
449 /* Now probe Device Identifiers for each device present. */
450 for (i
= 1; i
< num_ids
; i
++) {
451 if (!(c45_ids
->devices_in_package
& (1 << i
)))
454 reg_addr
= MII_ADDR_C45
| i
<< 16 | MII_PHYSID1
;
455 phy_reg
= mdiobus_read(bus
, addr
, reg_addr
);
458 c45_ids
->device_ids
[i
] = (phy_reg
& 0xffff) << 16;
460 reg_addr
= MII_ADDR_C45
| i
<< 16 | MII_PHYSID2
;
461 phy_reg
= mdiobus_read(bus
, addr
, reg_addr
);
464 c45_ids
->device_ids
[i
] |= (phy_reg
& 0xffff);
471 * get_phy_id - reads the specified addr for its ID.
472 * @bus: the target MII bus
473 * @addr: PHY address on the MII bus
474 * @phy_id: where to store the ID retrieved.
475 * @is_c45: If true the PHY uses the 802.3 clause 45 protocol
476 * @c45_ids: where to store the c45 ID information.
478 * Description: In the case of a 802.3-c22 PHY, reads the ID registers
479 * of the PHY at @addr on the @bus, stores it in @phy_id and returns
482 * In the case of a 802.3-c45 PHY, get_phy_c45_ids() is invoked, and
483 * its return value is in turn returned.
486 static int get_phy_id(struct mii_bus
*bus
, int addr
, u32
*phy_id
,
487 bool is_c45
, struct phy_c45_device_ids
*c45_ids
)
492 return get_phy_c45_ids(bus
, addr
, phy_id
, c45_ids
);
494 /* Grab the bits from PHYIR1, and put them in the upper half */
495 phy_reg
= mdiobus_read(bus
, addr
, MII_PHYSID1
);
499 *phy_id
= (phy_reg
& 0xffff) << 16;
501 /* Grab the bits from PHYIR2, and put them in the lower half */
502 phy_reg
= mdiobus_read(bus
, addr
, MII_PHYSID2
);
506 *phy_id
|= (phy_reg
& 0xffff);
512 * get_phy_device - reads the specified PHY device and returns its @phy_device
514 * @bus: the target MII bus
515 * @addr: PHY address on the MII bus
516 * @is_c45: If true the PHY uses the 802.3 clause 45 protocol
518 * Description: Reads the ID registers of the PHY at @addr on the
519 * @bus, then allocates and returns the phy_device to represent it.
521 struct phy_device
*get_phy_device(struct mii_bus
*bus
, int addr
, bool is_c45
)
523 struct phy_c45_device_ids c45_ids
= {0};
527 r
= get_phy_id(bus
, addr
, &phy_id
, is_c45
, &c45_ids
);
531 /* If the phy_id is mostly Fs, there is no device there */
532 if ((phy_id
& 0x1fffffff) == 0x1fffffff)
533 return ERR_PTR(-ENODEV
);
535 return phy_device_create(bus
, addr
, phy_id
, is_c45
, &c45_ids
);
537 EXPORT_SYMBOL(get_phy_device
);
540 phy_id_show(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
542 struct phy_device
*phydev
= to_phy_device(dev
);
544 return sprintf(buf
, "0x%.8lx\n", (unsigned long)phydev
->phy_id
);
546 static DEVICE_ATTR_RO(phy_id
);
549 phy_interface_show(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
551 struct phy_device
*phydev
= to_phy_device(dev
);
552 const char *mode
= NULL
;
554 if (phy_is_internal(phydev
))
557 mode
= phy_modes(phydev
->interface
);
559 return sprintf(buf
, "%s\n", mode
);
561 static DEVICE_ATTR_RO(phy_interface
);
564 phy_has_fixups_show(struct device
*dev
, struct device_attribute
*attr
,
567 struct phy_device
*phydev
= to_phy_device(dev
);
569 return sprintf(buf
, "%d\n", phydev
->has_fixups
);
571 static DEVICE_ATTR_RO(phy_has_fixups
);
573 static struct attribute
*phy_dev_attrs
[] = {
574 &dev_attr_phy_id
.attr
,
575 &dev_attr_phy_interface
.attr
,
576 &dev_attr_phy_has_fixups
.attr
,
579 ATTRIBUTE_GROUPS(phy_dev
);
582 * phy_device_register - Register the phy device on the MDIO bus
583 * @phydev: phy_device structure to be added to the MDIO bus
585 int phy_device_register(struct phy_device
*phydev
)
589 err
= mdiobus_register_device(&phydev
->mdio
);
593 /* Run all of the fixups for this PHY */
594 err
= phy_scan_fixups(phydev
);
596 pr_err("PHY %d failed to initialize\n", phydev
->mdio
.addr
);
600 phydev
->mdio
.dev
.groups
= phy_dev_groups
;
602 err
= device_add(&phydev
->mdio
.dev
);
604 pr_err("PHY %d failed to add\n", phydev
->mdio
.addr
);
611 mdiobus_unregister_device(&phydev
->mdio
);
614 EXPORT_SYMBOL(phy_device_register
);
617 * phy_device_remove - Remove a previously registered phy device from the MDIO bus
618 * @phydev: phy_device structure to remove
620 * This doesn't free the phy_device itself, it merely reverses the effects
621 * of phy_device_register(). Use phy_device_free() to free the device
622 * after calling this function.
624 void phy_device_remove(struct phy_device
*phydev
)
626 device_del(&phydev
->mdio
.dev
);
627 mdiobus_unregister_device(&phydev
->mdio
);
629 EXPORT_SYMBOL(phy_device_remove
);
632 * phy_find_first - finds the first PHY device on the bus
633 * @bus: the target MII bus
635 struct phy_device
*phy_find_first(struct mii_bus
*bus
)
637 struct phy_device
*phydev
;
640 for (addr
= 0; addr
< PHY_MAX_ADDR
; addr
++) {
641 phydev
= mdiobus_get_phy(bus
, addr
);
647 EXPORT_SYMBOL(phy_find_first
);
650 * phy_prepare_link - prepares the PHY layer to monitor link status
651 * @phydev: target phy_device struct
652 * @handler: callback function for link status change notifications
654 * Description: Tells the PHY infrastructure to handle the
655 * gory details on monitoring link status (whether through
656 * polling or an interrupt), and to call back to the
657 * connected device driver when the link status changes.
658 * If you want to monitor your own link state, don't call
661 static void phy_prepare_link(struct phy_device
*phydev
,
662 void (*handler
)(struct net_device
*))
664 phydev
->adjust_link
= handler
;
668 * phy_connect_direct - connect an ethernet device to a specific phy_device
669 * @dev: the network device to connect
670 * @phydev: the pointer to the phy device
671 * @handler: callback function for state change notifications
672 * @interface: PHY device's interface
674 int phy_connect_direct(struct net_device
*dev
, struct phy_device
*phydev
,
675 void (*handler
)(struct net_device
*),
676 phy_interface_t interface
)
680 rc
= phy_attach_direct(dev
, phydev
, phydev
->dev_flags
, interface
);
684 phy_prepare_link(phydev
, handler
);
685 phy_start_machine(phydev
);
687 phy_start_interrupts(phydev
);
691 EXPORT_SYMBOL(phy_connect_direct
);
694 * phy_connect - connect an ethernet device to a PHY device
695 * @dev: the network device to connect
696 * @bus_id: the id string of the PHY device to connect
697 * @handler: callback function for state change notifications
698 * @interface: PHY device's interface
700 * Description: Convenience function for connecting ethernet
701 * devices to PHY devices. The default behavior is for
702 * the PHY infrastructure to handle everything, and only notify
703 * the connected driver when the link status changes. If you
704 * don't want, or can't use the provided functionality, you may
705 * choose to call only the subset of functions which provide
706 * the desired functionality.
708 struct phy_device
*phy_connect(struct net_device
*dev
, const char *bus_id
,
709 void (*handler
)(struct net_device
*),
710 phy_interface_t interface
)
712 struct phy_device
*phydev
;
716 /* Search the list of PHY devices on the mdio bus for the
717 * PHY with the requested name
719 d
= bus_find_device_by_name(&mdio_bus_type
, NULL
, bus_id
);
721 pr_err("PHY %s not found\n", bus_id
);
722 return ERR_PTR(-ENODEV
);
724 phydev
= to_phy_device(d
);
726 rc
= phy_connect_direct(dev
, phydev
, handler
, interface
);
732 EXPORT_SYMBOL(phy_connect
);
735 * phy_disconnect - disable interrupts, stop state machine, and detach a PHY
737 * @phydev: target phy_device struct
739 void phy_disconnect(struct phy_device
*phydev
)
742 phy_stop_interrupts(phydev
);
744 phy_stop_machine(phydev
);
746 phydev
->adjust_link
= NULL
;
750 EXPORT_SYMBOL(phy_disconnect
);
753 * phy_poll_reset - Safely wait until a PHY reset has properly completed
754 * @phydev: The PHY device to poll
756 * Description: According to IEEE 802.3, Section 2, Subsection 22.2.4.1.1, as
757 * published in 2008, a PHY reset may take up to 0.5 seconds. The MII BMCR
758 * register must be polled until the BMCR_RESET bit clears.
760 * Furthermore, any attempts to write to PHY registers may have no effect
761 * or even generate MDIO bus errors until this is complete.
763 * Some PHYs (such as the Marvell 88E1111) don't entirely conform to the
764 * standard and do not fully reset after the BMCR_RESET bit is set, and may
765 * even *REQUIRE* a soft-reset to properly restart autonegotiation. In an
766 * effort to support such broken PHYs, this function is separate from the
767 * standard phy_init_hw() which will zero all the other bits in the BMCR
768 * and reapply all driver-specific and board-specific fixups.
770 static int phy_poll_reset(struct phy_device
*phydev
)
772 /* Poll until the reset bit clears (50ms per retry == 0.6 sec) */
773 unsigned int retries
= 12;
778 ret
= phy_read(phydev
, MII_BMCR
);
781 } while (ret
& BMCR_RESET
&& --retries
);
782 if (ret
& BMCR_RESET
)
785 /* Some chips (smsc911x) may still need up to another 1ms after the
786 * BMCR_RESET bit is cleared before they are usable.
792 int phy_init_hw(struct phy_device
*phydev
)
796 if (!phydev
->drv
|| !phydev
->drv
->config_init
)
799 if (phydev
->drv
->soft_reset
)
800 ret
= phydev
->drv
->soft_reset(phydev
);
802 ret
= genphy_soft_reset(phydev
);
807 ret
= phy_scan_fixups(phydev
);
811 return phydev
->drv
->config_init(phydev
);
813 EXPORT_SYMBOL(phy_init_hw
);
815 void phy_attached_info(struct phy_device
*phydev
)
817 phy_attached_print(phydev
, NULL
);
819 EXPORT_SYMBOL(phy_attached_info
);
821 #define ATTACHED_FMT "attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)"
822 void phy_attached_print(struct phy_device
*phydev
, const char *fmt
, ...)
825 dev_info(&phydev
->mdio
.dev
, ATTACHED_FMT
"\n",
826 phydev
->drv
->name
, phydev_name(phydev
),
831 dev_info(&phydev
->mdio
.dev
, ATTACHED_FMT
,
832 phydev
->drv
->name
, phydev_name(phydev
),
840 EXPORT_SYMBOL(phy_attached_print
);
843 * phy_attach_direct - attach a network device to a given PHY device pointer
844 * @dev: network device to attach
845 * @phydev: Pointer to phy_device to attach
846 * @flags: PHY device's dev_flags
847 * @interface: PHY device's interface
849 * Description: Called by drivers to attach to a particular PHY
850 * device. The phy_device is found, and properly hooked up
851 * to the phy_driver. If no driver is attached, then a
852 * generic driver is used. The phy_device is given a ptr to
853 * the attaching device, and given a callback for link status
854 * change. The phy_device is returned to the attaching driver.
855 * This function takes a reference on the phy device.
857 int phy_attach_direct(struct net_device
*dev
, struct phy_device
*phydev
,
858 u32 flags
, phy_interface_t interface
)
860 struct mii_bus
*bus
= phydev
->mdio
.bus
;
861 struct device
*d
= &phydev
->mdio
.dev
;
864 if (!try_module_get(bus
->owner
)) {
865 dev_err(&dev
->dev
, "failed to get the bus module\n");
871 /* Assume that if there is no driver, that it doesn't
872 * exist, and we should use the genphy driver.
877 &genphy_driver
[GENPHY_DRV_10G
].mdiodrv
.driver
;
880 &genphy_driver
[GENPHY_DRV_1G
].mdiodrv
.driver
;
882 err
= d
->driver
->probe(d
);
884 err
= device_bind_driver(d
);
890 if (phydev
->attached_dev
) {
891 dev_err(&dev
->dev
, "PHY already attached\n");
896 phydev
->attached_dev
= dev
;
897 dev
->phydev
= phydev
;
899 phydev
->dev_flags
= flags
;
901 phydev
->interface
= interface
;
903 phydev
->state
= PHY_READY
;
905 /* Initial carrier state is off as the phy is about to be
908 netif_carrier_off(phydev
->attached_dev
);
910 /* Do initial configuration here, now that
911 * we have certain key parameters
912 * (dev_flags and interface)
914 err
= phy_init_hw(phydev
);
924 module_put(bus
->owner
);
927 EXPORT_SYMBOL(phy_attach_direct
);
930 * phy_attach - attach a network device to a particular PHY device
931 * @dev: network device to attach
932 * @bus_id: Bus ID of PHY device to attach
933 * @interface: PHY device's interface
935 * Description: Same as phy_attach_direct() except that a PHY bus_id
936 * string is passed instead of a pointer to a struct phy_device.
938 struct phy_device
*phy_attach(struct net_device
*dev
, const char *bus_id
,
939 phy_interface_t interface
)
941 struct bus_type
*bus
= &mdio_bus_type
;
942 struct phy_device
*phydev
;
946 /* Search the list of PHY devices on the mdio bus for the
947 * PHY with the requested name
949 d
= bus_find_device_by_name(bus
, NULL
, bus_id
);
951 pr_err("PHY %s not found\n", bus_id
);
952 return ERR_PTR(-ENODEV
);
954 phydev
= to_phy_device(d
);
956 rc
= phy_attach_direct(dev
, phydev
, phydev
->dev_flags
, interface
);
962 EXPORT_SYMBOL(phy_attach
);
965 * phy_detach - detach a PHY device from its network device
966 * @phydev: target phy_device struct
968 * This detaches the phy device from its network device and the phy
969 * driver, and drops the reference count taken in phy_attach_direct().
971 void phy_detach(struct phy_device
*phydev
)
976 phydev
->attached_dev
->phydev
= NULL
;
977 phydev
->attached_dev
= NULL
;
980 /* If the device had no specific driver before (i.e. - it
981 * was using the generic driver), we unbind the device
982 * from the generic driver so that there's a chance a
983 * real driver could be loaded
985 for (i
= 0; i
< ARRAY_SIZE(genphy_driver
); i
++) {
986 if (phydev
->mdio
.dev
.driver
==
987 &genphy_driver
[i
].mdiodrv
.driver
) {
988 device_release_driver(&phydev
->mdio
.dev
);
994 * The phydev might go away on the put_device() below, so avoid
995 * a use-after-free bug by reading the underlying bus first.
997 bus
= phydev
->mdio
.bus
;
999 put_device(&phydev
->mdio
.dev
);
1000 module_put(bus
->owner
);
1002 EXPORT_SYMBOL(phy_detach
);
1004 int phy_suspend(struct phy_device
*phydev
)
1006 struct phy_driver
*phydrv
= to_phy_driver(phydev
->mdio
.dev
.driver
);
1007 struct ethtool_wolinfo wol
= { .cmd
= ETHTOOL_GWOL
};
1010 /* If the device has WOL enabled, we cannot suspend the PHY */
1011 phy_ethtool_get_wol(phydev
, &wol
);
1015 if (phydrv
->suspend
)
1016 ret
= phydrv
->suspend(phydev
);
1021 phydev
->suspended
= true;
1025 EXPORT_SYMBOL(phy_suspend
);
1027 int phy_resume(struct phy_device
*phydev
)
1029 struct phy_driver
*phydrv
= to_phy_driver(phydev
->mdio
.dev
.driver
);
1033 ret
= phydrv
->resume(phydev
);
1038 phydev
->suspended
= false;
1042 EXPORT_SYMBOL(phy_resume
);
1044 /* Generic PHY support and helper functions */
1047 * genphy_config_advert - sanitize and advertise auto-negotiation parameters
1048 * @phydev: target phy_device struct
1050 * Description: Writes MII_ADVERTISE with the appropriate values,
1051 * after sanitizing the values to make sure we only advertise
1052 * what is supported. Returns < 0 on error, 0 if the PHY's advertisement
1053 * hasn't changed, and > 0 if it has changed.
1055 static int genphy_config_advert(struct phy_device
*phydev
)
1058 int oldadv
, adv
, bmsr
;
1059 int err
, changed
= 0;
1061 /* Only allow advertising what this PHY supports */
1062 phydev
->advertising
&= phydev
->supported
;
1063 advertise
= phydev
->advertising
;
1065 /* Setup standard advertisement */
1066 adv
= phy_read(phydev
, MII_ADVERTISE
);
1071 adv
&= ~(ADVERTISE_ALL
| ADVERTISE_100BASE4
| ADVERTISE_PAUSE_CAP
|
1072 ADVERTISE_PAUSE_ASYM
);
1073 adv
|= ethtool_adv_to_mii_adv_t(advertise
);
1075 if (adv
!= oldadv
) {
1076 err
= phy_write(phydev
, MII_ADVERTISE
, adv
);
1083 bmsr
= phy_read(phydev
, MII_BMSR
);
1087 /* Per 802.3-2008, Section 22.2.4.2.16 Extended status all
1088 * 1000Mbits/sec capable PHYs shall have the BMSR_ESTATEN bit set to a
1091 if (!(bmsr
& BMSR_ESTATEN
))
1094 /* Configure gigabit if it's supported */
1095 adv
= phy_read(phydev
, MII_CTRL1000
);
1100 adv
&= ~(ADVERTISE_1000FULL
| ADVERTISE_1000HALF
);
1102 if (phydev
->supported
& (SUPPORTED_1000baseT_Half
|
1103 SUPPORTED_1000baseT_Full
)) {
1104 adv
|= ethtool_adv_to_mii_ctrl1000_t(advertise
);
1110 err
= phy_write(phydev
, MII_CTRL1000
, adv
);
1118 * genphy_setup_forced - configures/forces speed/duplex from @phydev
1119 * @phydev: target phy_device struct
1121 * Description: Configures MII_BMCR to force speed/duplex
1122 * to the values in phydev. Assumes that the values are valid.
1123 * Please see phy_sanitize_settings().
1125 int genphy_setup_forced(struct phy_device
*phydev
)
1127 int ctl
= phy_read(phydev
, MII_BMCR
);
1129 ctl
&= BMCR_LOOPBACK
| BMCR_ISOLATE
| BMCR_PDOWN
;
1131 phydev
->asym_pause
= 0;
1133 if (SPEED_1000
== phydev
->speed
)
1134 ctl
|= BMCR_SPEED1000
;
1135 else if (SPEED_100
== phydev
->speed
)
1136 ctl
|= BMCR_SPEED100
;
1138 if (DUPLEX_FULL
== phydev
->duplex
)
1139 ctl
|= BMCR_FULLDPLX
;
1141 return phy_write(phydev
, MII_BMCR
, ctl
);
1143 EXPORT_SYMBOL(genphy_setup_forced
);
1146 * genphy_restart_aneg - Enable and Restart Autonegotiation
1147 * @phydev: target phy_device struct
1149 int genphy_restart_aneg(struct phy_device
*phydev
)
1151 int ctl
= phy_read(phydev
, MII_BMCR
);
1156 ctl
|= BMCR_ANENABLE
| BMCR_ANRESTART
;
1158 /* Don't isolate the PHY if we're negotiating */
1159 ctl
&= ~BMCR_ISOLATE
;
1161 return phy_write(phydev
, MII_BMCR
, ctl
);
1163 EXPORT_SYMBOL(genphy_restart_aneg
);
1166 * genphy_config_aneg - restart auto-negotiation or write BMCR
1167 * @phydev: target phy_device struct
1169 * Description: If auto-negotiation is enabled, we configure the
1170 * advertising, and then restart auto-negotiation. If it is not
1171 * enabled, then we write the BMCR.
1173 int genphy_config_aneg(struct phy_device
*phydev
)
1177 if (AUTONEG_ENABLE
!= phydev
->autoneg
)
1178 return genphy_setup_forced(phydev
);
1180 result
= genphy_config_advert(phydev
);
1181 if (result
< 0) /* error */
1184 /* Advertisement hasn't changed, but maybe aneg was never on to
1185 * begin with? Or maybe phy was isolated?
1187 int ctl
= phy_read(phydev
, MII_BMCR
);
1192 if (!(ctl
& BMCR_ANENABLE
) || (ctl
& BMCR_ISOLATE
))
1193 result
= 1; /* do restart aneg */
1196 /* Only restart aneg if we are advertising something different
1197 * than we were before.
1200 result
= genphy_restart_aneg(phydev
);
1204 EXPORT_SYMBOL(genphy_config_aneg
);
1207 * genphy_aneg_done - return auto-negotiation status
1208 * @phydev: target phy_device struct
1210 * Description: Reads the status register and returns 0 either if
1211 * auto-negotiation is incomplete, or if there was an error.
1212 * Returns BMSR_ANEGCOMPLETE if auto-negotiation is done.
1214 int genphy_aneg_done(struct phy_device
*phydev
)
1216 int retval
= phy_read(phydev
, MII_BMSR
);
1218 return (retval
< 0) ? retval
: (retval
& BMSR_ANEGCOMPLETE
);
1220 EXPORT_SYMBOL(genphy_aneg_done
);
1222 static int gen10g_config_aneg(struct phy_device
*phydev
)
1228 * genphy_update_link - update link status in @phydev
1229 * @phydev: target phy_device struct
1231 * Description: Update the value in phydev->link to reflect the
1232 * current link value. In order to do this, we need to read
1233 * the status register twice, keeping the second value.
1235 int genphy_update_link(struct phy_device
*phydev
)
1239 /* Do a fake read */
1240 status
= phy_read(phydev
, MII_BMSR
);
1244 /* Read link and autonegotiation status */
1245 status
= phy_read(phydev
, MII_BMSR
);
1249 if ((status
& BMSR_LSTATUS
) == 0)
1256 EXPORT_SYMBOL(genphy_update_link
);
1259 * genphy_read_status - check the link status and update current link state
1260 * @phydev: target phy_device struct
1262 * Description: Check the link, then figure out the current state
1263 * by comparing what we advertise with what the link partner
1264 * advertises. Start by checking the gigabit possibilities,
1265 * then move on to 10/100.
1267 int genphy_read_status(struct phy_device
*phydev
)
1274 int common_adv_gb
= 0;
1276 /* Update the link, but return if there was an error */
1277 err
= genphy_update_link(phydev
);
1281 phydev
->lp_advertising
= 0;
1283 if (AUTONEG_ENABLE
== phydev
->autoneg
) {
1284 if (phydev
->supported
& (SUPPORTED_1000baseT_Half
1285 | SUPPORTED_1000baseT_Full
)) {
1286 lpagb
= phy_read(phydev
, MII_STAT1000
);
1290 adv
= phy_read(phydev
, MII_CTRL1000
);
1294 phydev
->lp_advertising
=
1295 mii_stat1000_to_ethtool_lpa_t(lpagb
);
1296 common_adv_gb
= lpagb
& adv
<< 2;
1299 lpa
= phy_read(phydev
, MII_LPA
);
1303 phydev
->lp_advertising
|= mii_lpa_to_ethtool_lpa_t(lpa
);
1305 adv
= phy_read(phydev
, MII_ADVERTISE
);
1309 common_adv
= lpa
& adv
;
1311 phydev
->speed
= SPEED_10
;
1312 phydev
->duplex
= DUPLEX_HALF
;
1314 phydev
->asym_pause
= 0;
1316 if (common_adv_gb
& (LPA_1000FULL
| LPA_1000HALF
)) {
1317 phydev
->speed
= SPEED_1000
;
1319 if (common_adv_gb
& LPA_1000FULL
)
1320 phydev
->duplex
= DUPLEX_FULL
;
1321 } else if (common_adv
& (LPA_100FULL
| LPA_100HALF
)) {
1322 phydev
->speed
= SPEED_100
;
1324 if (common_adv
& LPA_100FULL
)
1325 phydev
->duplex
= DUPLEX_FULL
;
1327 if (common_adv
& LPA_10FULL
)
1328 phydev
->duplex
= DUPLEX_FULL
;
1330 if (phydev
->duplex
== DUPLEX_FULL
) {
1331 phydev
->pause
= lpa
& LPA_PAUSE_CAP
? 1 : 0;
1332 phydev
->asym_pause
= lpa
& LPA_PAUSE_ASYM
? 1 : 0;
1335 int bmcr
= phy_read(phydev
, MII_BMCR
);
1340 if (bmcr
& BMCR_FULLDPLX
)
1341 phydev
->duplex
= DUPLEX_FULL
;
1343 phydev
->duplex
= DUPLEX_HALF
;
1345 if (bmcr
& BMCR_SPEED1000
)
1346 phydev
->speed
= SPEED_1000
;
1347 else if (bmcr
& BMCR_SPEED100
)
1348 phydev
->speed
= SPEED_100
;
1350 phydev
->speed
= SPEED_10
;
1353 phydev
->asym_pause
= 0;
1358 EXPORT_SYMBOL(genphy_read_status
);
1360 static int gen10g_read_status(struct phy_device
*phydev
)
1363 u32 mmd_mask
= phydev
->c45_ids
.devices_in_package
;
1367 /* For now just lie and say it's 10G all the time */
1368 phydev
->speed
= SPEED_10000
;
1369 phydev
->duplex
= DUPLEX_FULL
;
1371 for (devad
= 0; mmd_mask
; devad
++, mmd_mask
= mmd_mask
>> 1) {
1372 if (!(mmd_mask
& 1))
1375 /* Read twice because link state is latched and a
1376 * read moves the current state into the register
1378 phy_read_mmd(phydev
, devad
, MDIO_STAT1
);
1379 reg
= phy_read_mmd(phydev
, devad
, MDIO_STAT1
);
1380 if (reg
< 0 || !(reg
& MDIO_STAT1_LSTATUS
))
1388 * genphy_soft_reset - software reset the PHY via BMCR_RESET bit
1389 * @phydev: target phy_device struct
1391 * Description: Perform a software PHY reset using the standard
1392 * BMCR_RESET bit and poll for the reset bit to be cleared.
1394 * Returns: 0 on success, < 0 on failure
1396 int genphy_soft_reset(struct phy_device
*phydev
)
1400 ret
= phy_write(phydev
, MII_BMCR
, BMCR_RESET
);
1404 return phy_poll_reset(phydev
);
1406 EXPORT_SYMBOL(genphy_soft_reset
);
1408 int genphy_config_init(struct phy_device
*phydev
)
1413 features
= (SUPPORTED_TP
| SUPPORTED_MII
1414 | SUPPORTED_AUI
| SUPPORTED_FIBRE
|
1415 SUPPORTED_BNC
| SUPPORTED_Pause
| SUPPORTED_Asym_Pause
);
1417 /* Do we support autonegotiation? */
1418 val
= phy_read(phydev
, MII_BMSR
);
1422 if (val
& BMSR_ANEGCAPABLE
)
1423 features
|= SUPPORTED_Autoneg
;
1425 if (val
& BMSR_100FULL
)
1426 features
|= SUPPORTED_100baseT_Full
;
1427 if (val
& BMSR_100HALF
)
1428 features
|= SUPPORTED_100baseT_Half
;
1429 if (val
& BMSR_10FULL
)
1430 features
|= SUPPORTED_10baseT_Full
;
1431 if (val
& BMSR_10HALF
)
1432 features
|= SUPPORTED_10baseT_Half
;
1434 if (val
& BMSR_ESTATEN
) {
1435 val
= phy_read(phydev
, MII_ESTATUS
);
1439 if (val
& ESTATUS_1000_TFULL
)
1440 features
|= SUPPORTED_1000baseT_Full
;
1441 if (val
& ESTATUS_1000_THALF
)
1442 features
|= SUPPORTED_1000baseT_Half
;
1445 phydev
->supported
&= features
;
1446 phydev
->advertising
&= features
;
1451 static int gen10g_soft_reset(struct phy_device
*phydev
)
1453 /* Do nothing for now */
1456 EXPORT_SYMBOL(genphy_config_init
);
1458 static int gen10g_config_init(struct phy_device
*phydev
)
1460 /* Temporarily just say we support everything */
1461 phydev
->supported
= SUPPORTED_10000baseT_Full
;
1462 phydev
->advertising
= SUPPORTED_10000baseT_Full
;
1467 int genphy_suspend(struct phy_device
*phydev
)
1471 mutex_lock(&phydev
->lock
);
1473 value
= phy_read(phydev
, MII_BMCR
);
1474 phy_write(phydev
, MII_BMCR
, value
| BMCR_PDOWN
);
1476 mutex_unlock(&phydev
->lock
);
1480 EXPORT_SYMBOL(genphy_suspend
);
1482 static int gen10g_suspend(struct phy_device
*phydev
)
1487 int genphy_resume(struct phy_device
*phydev
)
1491 mutex_lock(&phydev
->lock
);
1493 value
= phy_read(phydev
, MII_BMCR
);
1494 phy_write(phydev
, MII_BMCR
, value
& ~BMCR_PDOWN
);
1496 mutex_unlock(&phydev
->lock
);
1500 EXPORT_SYMBOL(genphy_resume
);
1502 static int gen10g_resume(struct phy_device
*phydev
)
1507 static int __set_phy_supported(struct phy_device
*phydev
, u32 max_speed
)
1509 /* The default values for phydev->supported are provided by the PHY
1510 * driver "features" member, we want to reset to sane defaults first
1511 * before supporting higher speeds.
1513 phydev
->supported
&= PHY_DEFAULT_FEATURES
;
1515 switch (max_speed
) {
1519 phydev
->supported
|= PHY_1000BT_FEATURES
;
1522 phydev
->supported
|= PHY_100BT_FEATURES
;
1525 phydev
->supported
|= PHY_10BT_FEATURES
;
1531 int phy_set_max_speed(struct phy_device
*phydev
, u32 max_speed
)
1535 err
= __set_phy_supported(phydev
, max_speed
);
1539 phydev
->advertising
= phydev
->supported
;
1543 EXPORT_SYMBOL(phy_set_max_speed
);
1545 static void of_set_phy_supported(struct phy_device
*phydev
)
1547 struct device_node
*node
= phydev
->mdio
.dev
.of_node
;
1550 if (!IS_ENABLED(CONFIG_OF_MDIO
))
1556 if (!of_property_read_u32(node
, "max-speed", &max_speed
))
1557 __set_phy_supported(phydev
, max_speed
);
1561 * phy_probe - probe and init a PHY device
1562 * @dev: device to probe and init
1564 * Description: Take care of setting up the phy_device structure,
1565 * set the state to READY (the driver's init function should
1566 * set it to STARTING if needed).
1568 static int phy_probe(struct device
*dev
)
1570 struct phy_device
*phydev
= to_phy_device(dev
);
1571 struct device_driver
*drv
= phydev
->mdio
.dev
.driver
;
1572 struct phy_driver
*phydrv
= to_phy_driver(drv
);
1574 struct gpio_descs
*reset_gpios
;
1576 phydev
->drv
= phydrv
;
1578 /* take phy out of reset */
1579 reset_gpios
= devm_gpiod_get_array_optional(dev
, "reset",
1581 if (IS_ERR(reset_gpios
))
1582 return PTR_ERR(reset_gpios
);
1584 /* Disable the interrupt if the PHY doesn't support it
1585 * but the interrupt is still a valid one
1587 if (!(phydrv
->flags
& PHY_HAS_INTERRUPT
) &&
1588 phy_interrupt_is_valid(phydev
))
1589 phydev
->irq
= PHY_POLL
;
1591 if (phydrv
->flags
& PHY_IS_INTERNAL
)
1592 phydev
->is_internal
= true;
1594 mutex_lock(&phydev
->lock
);
1596 /* Start out supporting everything. Eventually,
1597 * a controller will attach, and may modify one
1598 * or both of these values
1600 phydev
->supported
= phydrv
->features
;
1601 of_set_phy_supported(phydev
);
1602 phydev
->advertising
= phydev
->supported
;
1604 /* Set the state to READY by default */
1605 phydev
->state
= PHY_READY
;
1607 if (phydev
->drv
->probe
)
1608 err
= phydev
->drv
->probe(phydev
);
1610 mutex_unlock(&phydev
->lock
);
1615 static int phy_remove(struct device
*dev
)
1617 struct phy_device
*phydev
= to_phy_device(dev
);
1619 mutex_lock(&phydev
->lock
);
1620 phydev
->state
= PHY_DOWN
;
1621 mutex_unlock(&phydev
->lock
);
1623 if (phydev
->drv
->remove
)
1624 phydev
->drv
->remove(phydev
);
1631 * phy_driver_register - register a phy_driver with the PHY layer
1632 * @new_driver: new phy_driver to register
1633 * @owner: module owning this PHY
1635 int phy_driver_register(struct phy_driver
*new_driver
, struct module
*owner
)
1639 new_driver
->mdiodrv
.flags
|= MDIO_DEVICE_IS_PHY
;
1640 new_driver
->mdiodrv
.driver
.name
= new_driver
->name
;
1641 new_driver
->mdiodrv
.driver
.bus
= &mdio_bus_type
;
1642 new_driver
->mdiodrv
.driver
.probe
= phy_probe
;
1643 new_driver
->mdiodrv
.driver
.remove
= phy_remove
;
1644 new_driver
->mdiodrv
.driver
.owner
= owner
;
1646 retval
= driver_register(&new_driver
->mdiodrv
.driver
);
1648 pr_err("%s: Error %d in registering driver\n",
1649 new_driver
->name
, retval
);
1654 pr_debug("%s: Registered new driver\n", new_driver
->name
);
1658 EXPORT_SYMBOL(phy_driver_register
);
1660 int phy_drivers_register(struct phy_driver
*new_driver
, int n
,
1661 struct module
*owner
)
1665 for (i
= 0; i
< n
; i
++) {
1666 ret
= phy_driver_register(new_driver
+ i
, owner
);
1669 phy_driver_unregister(new_driver
+ i
);
1675 EXPORT_SYMBOL(phy_drivers_register
);
1677 void phy_driver_unregister(struct phy_driver
*drv
)
1679 driver_unregister(&drv
->mdiodrv
.driver
);
1681 EXPORT_SYMBOL(phy_driver_unregister
);
1683 void phy_drivers_unregister(struct phy_driver
*drv
, int n
)
1687 for (i
= 0; i
< n
; i
++)
1688 phy_driver_unregister(drv
+ i
);
1690 EXPORT_SYMBOL(phy_drivers_unregister
);
1692 static struct phy_driver genphy_driver
[] = {
1694 .phy_id
= 0xffffffff,
1695 .phy_id_mask
= 0xffffffff,
1696 .name
= "Generic PHY",
1697 .soft_reset
= genphy_soft_reset
,
1698 .config_init
= genphy_config_init
,
1699 .features
= PHY_GBIT_FEATURES
| SUPPORTED_MII
|
1700 SUPPORTED_AUI
| SUPPORTED_FIBRE
|
1702 .config_aneg
= genphy_config_aneg
,
1703 .aneg_done
= genphy_aneg_done
,
1704 .read_status
= genphy_read_status
,
1705 .suspend
= genphy_suspend
,
1706 .resume
= genphy_resume
,
1708 .phy_id
= 0xffffffff,
1709 .phy_id_mask
= 0xffffffff,
1710 .name
= "Generic 10G PHY",
1711 .soft_reset
= gen10g_soft_reset
,
1712 .config_init
= gen10g_config_init
,
1714 .config_aneg
= gen10g_config_aneg
,
1715 .read_status
= gen10g_read_status
,
1716 .suspend
= gen10g_suspend
,
1717 .resume
= gen10g_resume
,
1720 static int __init
phy_init(void)
1724 rc
= mdio_bus_init();
1728 rc
= phy_drivers_register(genphy_driver
,
1729 ARRAY_SIZE(genphy_driver
), THIS_MODULE
);
1736 static void __exit
phy_exit(void)
1738 phy_drivers_unregister(genphy_driver
,
1739 ARRAY_SIZE(genphy_driver
));
1743 subsys_initcall(phy_init
);
1744 module_exit(phy_exit
);