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.
98 return !phydev
->suspended
;
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
))
116 static int mdio_bus_phy_suspend(struct device
*dev
)
118 struct phy_device
*phydev
= to_phy_device(dev
);
120 /* We must stop the state machine manually, otherwise it stops out of
121 * control, possibly with the phydev->lock held. Upon resume, netdev
122 * may call phy routines that try to grab the same lock, and that may
123 * lead to a deadlock.
125 if (phydev
->attached_dev
&& phydev
->adjust_link
)
126 phy_stop_machine(phydev
);
128 if (!mdio_bus_phy_may_suspend(phydev
))
131 return phy_suspend(phydev
);
134 static int mdio_bus_phy_resume(struct device
*dev
)
136 struct phy_device
*phydev
= to_phy_device(dev
);
139 if (!mdio_bus_phy_may_suspend(phydev
))
142 ret
= phy_resume(phydev
);
147 if (phydev
->attached_dev
&& phydev
->adjust_link
)
148 phy_start_machine(phydev
);
153 static int mdio_bus_phy_restore(struct device
*dev
)
155 struct phy_device
*phydev
= to_phy_device(dev
);
156 struct net_device
*netdev
= phydev
->attached_dev
;
162 ret
= phy_init_hw(phydev
);
166 /* The PHY needs to renegotiate. */
168 phydev
->state
= PHY_UP
;
170 phy_start_machine(phydev
);
175 static const struct dev_pm_ops mdio_bus_phy_pm_ops
= {
176 .suspend
= mdio_bus_phy_suspend
,
177 .resume
= mdio_bus_phy_resume
,
178 .freeze
= mdio_bus_phy_suspend
,
179 .thaw
= mdio_bus_phy_resume
,
180 .restore
= mdio_bus_phy_restore
,
183 #define MDIO_BUS_PHY_PM_OPS (&mdio_bus_phy_pm_ops)
187 #define MDIO_BUS_PHY_PM_OPS NULL
189 #endif /* CONFIG_PM */
192 * phy_register_fixup - creates a new phy_fixup and adds it to the list
193 * @bus_id: A string which matches phydev->mdio.dev.bus_id (or PHY_ANY_ID)
194 * @phy_uid: Used to match against phydev->phy_id (the UID of the PHY)
195 * It can also be PHY_ANY_UID
196 * @phy_uid_mask: Applied to phydev->phy_id and fixup->phy_uid before
198 * @run: The actual code to be run when a matching PHY is found
200 int phy_register_fixup(const char *bus_id
, u32 phy_uid
, u32 phy_uid_mask
,
201 int (*run
)(struct phy_device
*))
203 struct phy_fixup
*fixup
= kzalloc(sizeof(*fixup
), GFP_KERNEL
);
208 strlcpy(fixup
->bus_id
, bus_id
, sizeof(fixup
->bus_id
));
209 fixup
->phy_uid
= phy_uid
;
210 fixup
->phy_uid_mask
= phy_uid_mask
;
213 mutex_lock(&phy_fixup_lock
);
214 list_add_tail(&fixup
->list
, &phy_fixup_list
);
215 mutex_unlock(&phy_fixup_lock
);
219 EXPORT_SYMBOL(phy_register_fixup
);
221 /* Registers a fixup to be run on any PHY with the UID in phy_uid */
222 int phy_register_fixup_for_uid(u32 phy_uid
, u32 phy_uid_mask
,
223 int (*run
)(struct phy_device
*))
225 return phy_register_fixup(PHY_ANY_ID
, phy_uid
, phy_uid_mask
, run
);
227 EXPORT_SYMBOL(phy_register_fixup_for_uid
);
229 /* Registers a fixup to be run on the PHY with id string bus_id */
230 int phy_register_fixup_for_id(const char *bus_id
,
231 int (*run
)(struct phy_device
*))
233 return phy_register_fixup(bus_id
, PHY_ANY_UID
, 0xffffffff, run
);
235 EXPORT_SYMBOL(phy_register_fixup_for_id
);
237 /* Returns 1 if fixup matches phydev in bus_id and phy_uid.
238 * Fixups can be set to match any in one or more fields.
240 static int phy_needs_fixup(struct phy_device
*phydev
, struct phy_fixup
*fixup
)
242 if (strcmp(fixup
->bus_id
, phydev_name(phydev
)) != 0)
243 if (strcmp(fixup
->bus_id
, PHY_ANY_ID
) != 0)
246 if ((fixup
->phy_uid
& fixup
->phy_uid_mask
) !=
247 (phydev
->phy_id
& fixup
->phy_uid_mask
))
248 if (fixup
->phy_uid
!= PHY_ANY_UID
)
254 /* Runs any matching fixups for this phydev */
255 static int phy_scan_fixups(struct phy_device
*phydev
)
257 struct phy_fixup
*fixup
;
259 mutex_lock(&phy_fixup_lock
);
260 list_for_each_entry(fixup
, &phy_fixup_list
, list
) {
261 if (phy_needs_fixup(phydev
, fixup
)) {
262 int err
= fixup
->run(phydev
);
265 mutex_unlock(&phy_fixup_lock
);
268 phydev
->has_fixups
= true;
271 mutex_unlock(&phy_fixup_lock
);
276 static int phy_bus_match(struct device
*dev
, struct device_driver
*drv
)
278 struct phy_device
*phydev
= to_phy_device(dev
);
279 struct phy_driver
*phydrv
= to_phy_driver(drv
);
280 const int num_ids
= ARRAY_SIZE(phydev
->c45_ids
.device_ids
);
283 if (!(phydrv
->mdiodrv
.flags
& MDIO_DEVICE_IS_PHY
))
286 if (phydrv
->match_phy_device
)
287 return phydrv
->match_phy_device(phydev
);
289 if (phydev
->is_c45
) {
290 for (i
= 1; i
< num_ids
; i
++) {
291 if (!(phydev
->c45_ids
.devices_in_package
& (1 << i
)))
294 if ((phydrv
->phy_id
& phydrv
->phy_id_mask
) ==
295 (phydev
->c45_ids
.device_ids
[i
] &
296 phydrv
->phy_id_mask
))
301 return (phydrv
->phy_id
& phydrv
->phy_id_mask
) ==
302 (phydev
->phy_id
& phydrv
->phy_id_mask
);
306 struct phy_device
*phy_device_create(struct mii_bus
*bus
, int addr
, int phy_id
,
308 struct phy_c45_device_ids
*c45_ids
)
310 struct phy_device
*dev
;
311 struct mdio_device
*mdiodev
;
313 /* We allocate the device, and initialize the default values */
314 dev
= kzalloc(sizeof(*dev
), GFP_KERNEL
);
316 return ERR_PTR(-ENOMEM
);
318 mdiodev
= &dev
->mdio
;
319 mdiodev
->dev
.release
= phy_device_release
;
320 mdiodev
->dev
.parent
= &bus
->dev
;
321 mdiodev
->dev
.bus
= &mdio_bus_type
;
323 mdiodev
->pm_ops
= MDIO_BUS_PHY_PM_OPS
;
324 mdiodev
->bus_match
= phy_bus_match
;
325 mdiodev
->addr
= addr
;
326 mdiodev
->flags
= MDIO_DEVICE_FLAG_PHY
;
327 mdiodev
->device_free
= phy_mdio_device_free
;
328 mdiodev
->device_remove
= phy_mdio_device_remove
;
335 dev
->interface
= PHY_INTERFACE_MODE_GMII
;
337 dev
->autoneg
= AUTONEG_ENABLE
;
339 dev
->is_c45
= is_c45
;
340 dev
->phy_id
= phy_id
;
342 dev
->c45_ids
= *c45_ids
;
343 dev
->irq
= bus
->irq
[addr
];
344 dev_set_name(&mdiodev
->dev
, PHY_ID_FMT
, bus
->id
, addr
);
346 dev
->state
= PHY_DOWN
;
348 mutex_init(&dev
->lock
);
349 INIT_DELAYED_WORK(&dev
->state_queue
, phy_state_machine
);
350 INIT_WORK(&dev
->phy_queue
, phy_change
);
352 /* Request the appropriate module unconditionally; don't
353 * bother trying to do so only if it isn't already loaded,
354 * because that gets complicated. A hotplug event would have
355 * done an unconditional modprobe anyway.
356 * We don't do normal hotplug because it won't work for MDIO
357 * -- because it relies on the device staying around for long
358 * enough for the driver to get loaded. With MDIO, the NIC
359 * driver will get bored and give up as soon as it finds that
360 * there's no driver _already_ loaded.
362 request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT
, MDIO_ID_ARGS(phy_id
));
364 device_initialize(&mdiodev
->dev
);
368 EXPORT_SYMBOL(phy_device_create
);
370 /* get_phy_c45_devs_in_pkg - reads a MMD's devices in package registers.
371 * @bus: the target MII bus
372 * @addr: PHY address on the MII bus
373 * @dev_addr: MMD address in the PHY.
374 * @devices_in_package: where to store the devices in package information.
376 * Description: reads devices in package registers of a MMD at @dev_addr
377 * from PHY at @addr on @bus.
379 * Returns: 0 on success, -EIO on failure.
381 static int get_phy_c45_devs_in_pkg(struct mii_bus
*bus
, int addr
, int dev_addr
,
382 u32
*devices_in_package
)
384 int phy_reg
, reg_addr
;
386 reg_addr
= MII_ADDR_C45
| dev_addr
<< 16 | MDIO_DEVS2
;
387 phy_reg
= mdiobus_read(bus
, addr
, reg_addr
);
390 *devices_in_package
= (phy_reg
& 0xffff) << 16;
392 reg_addr
= MII_ADDR_C45
| dev_addr
<< 16 | MDIO_DEVS1
;
393 phy_reg
= mdiobus_read(bus
, addr
, reg_addr
);
396 *devices_in_package
|= (phy_reg
& 0xffff);
402 * get_phy_c45_ids - reads the specified addr for its 802.3-c45 IDs.
403 * @bus: the target MII bus
404 * @addr: PHY address on the MII bus
405 * @phy_id: where to store the ID retrieved.
406 * @c45_ids: where to store the c45 ID information.
408 * If the PHY devices-in-package appears to be valid, it and the
409 * corresponding identifiers are stored in @c45_ids, zero is stored
410 * in @phy_id. Otherwise 0xffffffff is stored in @phy_id. Returns
414 static int get_phy_c45_ids(struct mii_bus
*bus
, int addr
, u32
*phy_id
,
415 struct phy_c45_device_ids
*c45_ids
) {
418 const int num_ids
= ARRAY_SIZE(c45_ids
->device_ids
);
419 u32
*devs
= &c45_ids
->devices_in_package
;
421 /* Find first non-zero Devices In package. Device zero is reserved
422 * for 802.3 c45 complied PHYs, so don't probe it at first.
424 for (i
= 1; i
< num_ids
&& *devs
== 0; i
++) {
425 phy_reg
= get_phy_c45_devs_in_pkg(bus
, addr
, i
, devs
);
429 if ((*devs
& 0x1fffffff) == 0x1fffffff) {
430 /* If mostly Fs, there is no device there,
431 * then let's continue to probe more, as some
432 * 10G PHYs have zero Devices In package,
433 * e.g. Cortina CS4315/CS4340 PHY.
435 phy_reg
= get_phy_c45_devs_in_pkg(bus
, addr
, 0, devs
);
438 /* no device there, let's get out of here */
439 if ((*devs
& 0x1fffffff) == 0x1fffffff) {
440 *phy_id
= 0xffffffff;
448 /* Now probe Device Identifiers for each device present. */
449 for (i
= 1; i
< num_ids
; i
++) {
450 if (!(c45_ids
->devices_in_package
& (1 << i
)))
453 reg_addr
= MII_ADDR_C45
| i
<< 16 | MII_PHYSID1
;
454 phy_reg
= mdiobus_read(bus
, addr
, reg_addr
);
457 c45_ids
->device_ids
[i
] = (phy_reg
& 0xffff) << 16;
459 reg_addr
= MII_ADDR_C45
| i
<< 16 | MII_PHYSID2
;
460 phy_reg
= mdiobus_read(bus
, addr
, reg_addr
);
463 c45_ids
->device_ids
[i
] |= (phy_reg
& 0xffff);
470 * get_phy_id - reads the specified addr for its ID.
471 * @bus: the target MII bus
472 * @addr: PHY address on the MII bus
473 * @phy_id: where to store the ID retrieved.
474 * @is_c45: If true the PHY uses the 802.3 clause 45 protocol
475 * @c45_ids: where to store the c45 ID information.
477 * Description: In the case of a 802.3-c22 PHY, reads the ID registers
478 * of the PHY at @addr on the @bus, stores it in @phy_id and returns
481 * In the case of a 802.3-c45 PHY, get_phy_c45_ids() is invoked, and
482 * its return value is in turn returned.
485 static int get_phy_id(struct mii_bus
*bus
, int addr
, u32
*phy_id
,
486 bool is_c45
, struct phy_c45_device_ids
*c45_ids
)
491 return get_phy_c45_ids(bus
, addr
, phy_id
, c45_ids
);
493 /* Grab the bits from PHYIR1, and put them in the upper half */
494 phy_reg
= mdiobus_read(bus
, addr
, MII_PHYSID1
);
498 *phy_id
= (phy_reg
& 0xffff) << 16;
500 /* Grab the bits from PHYIR2, and put them in the lower half */
501 phy_reg
= mdiobus_read(bus
, addr
, MII_PHYSID2
);
505 *phy_id
|= (phy_reg
& 0xffff);
511 * get_phy_device - reads the specified PHY device and returns its @phy_device
513 * @bus: the target MII bus
514 * @addr: PHY address on the MII bus
515 * @is_c45: If true the PHY uses the 802.3 clause 45 protocol
517 * Description: Reads the ID registers of the PHY at @addr on the
518 * @bus, then allocates and returns the phy_device to represent it.
520 struct phy_device
*get_phy_device(struct mii_bus
*bus
, int addr
, bool is_c45
)
522 struct phy_c45_device_ids c45_ids
= {0};
526 r
= get_phy_id(bus
, addr
, &phy_id
, is_c45
, &c45_ids
);
530 /* If the phy_id is mostly Fs, there is no device there */
531 if ((phy_id
& 0x1fffffff) == 0x1fffffff)
534 return phy_device_create(bus
, addr
, phy_id
, is_c45
, &c45_ids
);
536 EXPORT_SYMBOL(get_phy_device
);
539 phy_id_show(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
541 struct phy_device
*phydev
= to_phy_device(dev
);
543 return sprintf(buf
, "0x%.8lx\n", (unsigned long)phydev
->phy_id
);
545 static DEVICE_ATTR_RO(phy_id
);
548 phy_interface_show(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
550 struct phy_device
*phydev
= to_phy_device(dev
);
551 const char *mode
= NULL
;
553 if (phy_is_internal(phydev
))
556 mode
= phy_modes(phydev
->interface
);
558 return sprintf(buf
, "%s\n", mode
);
560 static DEVICE_ATTR_RO(phy_interface
);
563 phy_has_fixups_show(struct device
*dev
, struct device_attribute
*attr
,
566 struct phy_device
*phydev
= to_phy_device(dev
);
568 return sprintf(buf
, "%d\n", phydev
->has_fixups
);
570 static DEVICE_ATTR_RO(phy_has_fixups
);
572 static struct attribute
*phy_dev_attrs
[] = {
573 &dev_attr_phy_id
.attr
,
574 &dev_attr_phy_interface
.attr
,
575 &dev_attr_phy_has_fixups
.attr
,
578 ATTRIBUTE_GROUPS(phy_dev
);
581 * phy_device_register - Register the phy device on the MDIO bus
582 * @phydev: phy_device structure to be added to the MDIO bus
584 int phy_device_register(struct phy_device
*phydev
)
588 err
= mdiobus_register_device(&phydev
->mdio
);
592 /* Run all of the fixups for this PHY */
593 err
= phy_scan_fixups(phydev
);
595 pr_err("PHY %d failed to initialize\n", phydev
->mdio
.addr
);
599 phydev
->mdio
.dev
.groups
= phy_dev_groups
;
601 err
= device_add(&phydev
->mdio
.dev
);
603 pr_err("PHY %d failed to add\n", phydev
->mdio
.addr
);
610 mdiobus_unregister_device(&phydev
->mdio
);
613 EXPORT_SYMBOL(phy_device_register
);
616 * phy_device_remove - Remove a previously registered phy device from the MDIO bus
617 * @phydev: phy_device structure to remove
619 * This doesn't free the phy_device itself, it merely reverses the effects
620 * of phy_device_register(). Use phy_device_free() to free the device
621 * after calling this function.
623 void phy_device_remove(struct phy_device
*phydev
)
625 device_del(&phydev
->mdio
.dev
);
626 mdiobus_unregister_device(&phydev
->mdio
);
628 EXPORT_SYMBOL(phy_device_remove
);
631 * phy_find_first - finds the first PHY device on the bus
632 * @bus: the target MII bus
634 struct phy_device
*phy_find_first(struct mii_bus
*bus
)
636 struct phy_device
*phydev
;
639 for (addr
= 0; addr
< PHY_MAX_ADDR
; addr
++) {
640 phydev
= mdiobus_get_phy(bus
, addr
);
646 EXPORT_SYMBOL(phy_find_first
);
649 * phy_prepare_link - prepares the PHY layer to monitor link status
650 * @phydev: target phy_device struct
651 * @handler: callback function for link status change notifications
653 * Description: Tells the PHY infrastructure to handle the
654 * gory details on monitoring link status (whether through
655 * polling or an interrupt), and to call back to the
656 * connected device driver when the link status changes.
657 * If you want to monitor your own link state, don't call
660 static void phy_prepare_link(struct phy_device
*phydev
,
661 void (*handler
)(struct net_device
*))
663 phydev
->adjust_link
= handler
;
667 * phy_connect_direct - connect an ethernet device to a specific phy_device
668 * @dev: the network device to connect
669 * @phydev: the pointer to the phy device
670 * @handler: callback function for state change notifications
671 * @interface: PHY device's interface
673 int phy_connect_direct(struct net_device
*dev
, struct phy_device
*phydev
,
674 void (*handler
)(struct net_device
*),
675 phy_interface_t interface
)
679 rc
= phy_attach_direct(dev
, phydev
, phydev
->dev_flags
, interface
);
683 phy_prepare_link(phydev
, handler
);
684 phy_start_machine(phydev
);
686 phy_start_interrupts(phydev
);
690 EXPORT_SYMBOL(phy_connect_direct
);
693 * phy_connect - connect an ethernet device to a PHY device
694 * @dev: the network device to connect
695 * @bus_id: the id string of the PHY device to connect
696 * @handler: callback function for state change notifications
697 * @interface: PHY device's interface
699 * Description: Convenience function for connecting ethernet
700 * devices to PHY devices. The default behavior is for
701 * the PHY infrastructure to handle everything, and only notify
702 * the connected driver when the link status changes. If you
703 * don't want, or can't use the provided functionality, you may
704 * choose to call only the subset of functions which provide
705 * the desired functionality.
707 struct phy_device
*phy_connect(struct net_device
*dev
, const char *bus_id
,
708 void (*handler
)(struct net_device
*),
709 phy_interface_t interface
)
711 struct phy_device
*phydev
;
715 /* Search the list of PHY devices on the mdio bus for the
716 * PHY with the requested name
718 d
= bus_find_device_by_name(&mdio_bus_type
, NULL
, bus_id
);
720 pr_err("PHY %s not found\n", bus_id
);
721 return ERR_PTR(-ENODEV
);
723 phydev
= to_phy_device(d
);
725 rc
= phy_connect_direct(dev
, phydev
, handler
, interface
);
731 EXPORT_SYMBOL(phy_connect
);
734 * phy_disconnect - disable interrupts, stop state machine, and detach a PHY
736 * @phydev: target phy_device struct
738 void phy_disconnect(struct phy_device
*phydev
)
741 phy_stop_interrupts(phydev
);
743 phy_stop_machine(phydev
);
745 phydev
->adjust_link
= NULL
;
749 EXPORT_SYMBOL(phy_disconnect
);
752 * phy_poll_reset - Safely wait until a PHY reset has properly completed
753 * @phydev: The PHY device to poll
755 * Description: According to IEEE 802.3, Section 2, Subsection 22.2.4.1.1, as
756 * published in 2008, a PHY reset may take up to 0.5 seconds. The MII BMCR
757 * register must be polled until the BMCR_RESET bit clears.
759 * Furthermore, any attempts to write to PHY registers may have no effect
760 * or even generate MDIO bus errors until this is complete.
762 * Some PHYs (such as the Marvell 88E1111) don't entirely conform to the
763 * standard and do not fully reset after the BMCR_RESET bit is set, and may
764 * even *REQUIRE* a soft-reset to properly restart autonegotiation. In an
765 * effort to support such broken PHYs, this function is separate from the
766 * standard phy_init_hw() which will zero all the other bits in the BMCR
767 * and reapply all driver-specific and board-specific fixups.
769 static int phy_poll_reset(struct phy_device
*phydev
)
771 /* Poll until the reset bit clears (50ms per retry == 0.6 sec) */
772 unsigned int retries
= 12;
777 ret
= phy_read(phydev
, MII_BMCR
);
780 } while (ret
& BMCR_RESET
&& --retries
);
781 if (ret
& BMCR_RESET
)
784 /* Some chips (smsc911x) may still need up to another 1ms after the
785 * BMCR_RESET bit is cleared before they are usable.
791 int phy_init_hw(struct phy_device
*phydev
)
795 if (!phydev
->drv
|| !phydev
->drv
->config_init
)
798 if (phydev
->drv
->soft_reset
)
799 ret
= phydev
->drv
->soft_reset(phydev
);
801 ret
= genphy_soft_reset(phydev
);
806 ret
= phy_scan_fixups(phydev
);
810 return phydev
->drv
->config_init(phydev
);
812 EXPORT_SYMBOL(phy_init_hw
);
814 void phy_attached_info(struct phy_device
*phydev
)
816 phy_attached_print(phydev
, NULL
);
818 EXPORT_SYMBOL(phy_attached_info
);
820 #define ATTACHED_FMT "attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)"
821 void phy_attached_print(struct phy_device
*phydev
, const char *fmt
, ...)
824 dev_info(&phydev
->mdio
.dev
, ATTACHED_FMT
"\n",
825 phydev
->drv
->name
, phydev_name(phydev
),
830 dev_info(&phydev
->mdio
.dev
, ATTACHED_FMT
,
831 phydev
->drv
->name
, phydev_name(phydev
),
839 EXPORT_SYMBOL(phy_attached_print
);
842 * phy_attach_direct - attach a network device to a given PHY device pointer
843 * @dev: network device to attach
844 * @phydev: Pointer to phy_device to attach
845 * @flags: PHY device's dev_flags
846 * @interface: PHY device's interface
848 * Description: Called by drivers to attach to a particular PHY
849 * device. The phy_device is found, and properly hooked up
850 * to the phy_driver. If no driver is attached, then a
851 * generic driver is used. The phy_device is given a ptr to
852 * the attaching device, and given a callback for link status
853 * change. The phy_device is returned to the attaching driver.
854 * This function takes a reference on the phy device.
856 int phy_attach_direct(struct net_device
*dev
, struct phy_device
*phydev
,
857 u32 flags
, phy_interface_t interface
)
859 struct mii_bus
*bus
= phydev
->mdio
.bus
;
860 struct device
*d
= &phydev
->mdio
.dev
;
863 if (!try_module_get(bus
->owner
)) {
864 dev_err(&dev
->dev
, "failed to get the bus module\n");
870 /* Assume that if there is no driver, that it doesn't
871 * exist, and we should use the genphy driver.
876 &genphy_driver
[GENPHY_DRV_10G
].mdiodrv
.driver
;
879 &genphy_driver
[GENPHY_DRV_1G
].mdiodrv
.driver
;
881 err
= d
->driver
->probe(d
);
883 err
= device_bind_driver(d
);
889 if (phydev
->attached_dev
) {
890 dev_err(&dev
->dev
, "PHY already attached\n");
895 phydev
->attached_dev
= dev
;
896 dev
->phydev
= phydev
;
898 phydev
->dev_flags
= flags
;
900 phydev
->interface
= interface
;
902 phydev
->state
= PHY_READY
;
904 /* Initial carrier state is off as the phy is about to be
907 netif_carrier_off(phydev
->attached_dev
);
909 /* Do initial configuration here, now that
910 * we have certain key parameters
911 * (dev_flags and interface)
913 err
= phy_init_hw(phydev
);
923 module_put(bus
->owner
);
926 EXPORT_SYMBOL(phy_attach_direct
);
929 * phy_attach - attach a network device to a particular PHY device
930 * @dev: network device to attach
931 * @bus_id: Bus ID of PHY device to attach
932 * @interface: PHY device's interface
934 * Description: Same as phy_attach_direct() except that a PHY bus_id
935 * string is passed instead of a pointer to a struct phy_device.
937 struct phy_device
*phy_attach(struct net_device
*dev
, const char *bus_id
,
938 phy_interface_t interface
)
940 struct bus_type
*bus
= &mdio_bus_type
;
941 struct phy_device
*phydev
;
945 /* Search the list of PHY devices on the mdio bus for the
946 * PHY with the requested name
948 d
= bus_find_device_by_name(bus
, NULL
, bus_id
);
950 pr_err("PHY %s not found\n", bus_id
);
951 return ERR_PTR(-ENODEV
);
953 phydev
= to_phy_device(d
);
955 rc
= phy_attach_direct(dev
, phydev
, phydev
->dev_flags
, interface
);
961 EXPORT_SYMBOL(phy_attach
);
964 * phy_detach - detach a PHY device from its network device
965 * @phydev: target phy_device struct
967 * This detaches the phy device from its network device and the phy
968 * driver, and drops the reference count taken in phy_attach_direct().
970 void phy_detach(struct phy_device
*phydev
)
975 phydev
->attached_dev
->phydev
= NULL
;
976 phydev
->attached_dev
= NULL
;
979 /* If the device had no specific driver before (i.e. - it
980 * was using the generic driver), we unbind the device
981 * from the generic driver so that there's a chance a
982 * real driver could be loaded
984 for (i
= 0; i
< ARRAY_SIZE(genphy_driver
); i
++) {
985 if (phydev
->mdio
.dev
.driver
==
986 &genphy_driver
[i
].mdiodrv
.driver
) {
987 device_release_driver(&phydev
->mdio
.dev
);
993 * The phydev might go away on the put_device() below, so avoid
994 * a use-after-free bug by reading the underlying bus first.
996 bus
= phydev
->mdio
.bus
;
998 put_device(&phydev
->mdio
.dev
);
999 module_put(bus
->owner
);
1001 EXPORT_SYMBOL(phy_detach
);
1003 int phy_suspend(struct phy_device
*phydev
)
1005 struct phy_driver
*phydrv
= to_phy_driver(phydev
->mdio
.dev
.driver
);
1006 struct ethtool_wolinfo wol
= { .cmd
= ETHTOOL_GWOL
};
1009 /* If the device has WOL enabled, we cannot suspend the PHY */
1010 phy_ethtool_get_wol(phydev
, &wol
);
1014 if (phydrv
->suspend
)
1015 ret
= phydrv
->suspend(phydev
);
1020 phydev
->suspended
= true;
1024 EXPORT_SYMBOL(phy_suspend
);
1026 int phy_resume(struct phy_device
*phydev
)
1028 struct phy_driver
*phydrv
= to_phy_driver(phydev
->mdio
.dev
.driver
);
1032 ret
= phydrv
->resume(phydev
);
1037 phydev
->suspended
= false;
1041 EXPORT_SYMBOL(phy_resume
);
1043 /* Generic PHY support and helper functions */
1046 * genphy_config_advert - sanitize and advertise auto-negotiation parameters
1047 * @phydev: target phy_device struct
1049 * Description: Writes MII_ADVERTISE with the appropriate values,
1050 * after sanitizing the values to make sure we only advertise
1051 * what is supported. Returns < 0 on error, 0 if the PHY's advertisement
1052 * hasn't changed, and > 0 if it has changed.
1054 static int genphy_config_advert(struct phy_device
*phydev
)
1057 int oldadv
, adv
, bmsr
;
1058 int err
, changed
= 0;
1060 /* Only allow advertising what this PHY supports */
1061 phydev
->advertising
&= phydev
->supported
;
1062 advertise
= phydev
->advertising
;
1064 /* Setup standard advertisement */
1065 adv
= phy_read(phydev
, MII_ADVERTISE
);
1070 adv
&= ~(ADVERTISE_ALL
| ADVERTISE_100BASE4
| ADVERTISE_PAUSE_CAP
|
1071 ADVERTISE_PAUSE_ASYM
);
1072 adv
|= ethtool_adv_to_mii_adv_t(advertise
);
1074 if (adv
!= oldadv
) {
1075 err
= phy_write(phydev
, MII_ADVERTISE
, adv
);
1082 bmsr
= phy_read(phydev
, MII_BMSR
);
1086 /* Per 802.3-2008, Section 22.2.4.2.16 Extended status all
1087 * 1000Mbits/sec capable PHYs shall have the BMSR_ESTATEN bit set to a
1090 if (!(bmsr
& BMSR_ESTATEN
))
1093 /* Configure gigabit if it's supported */
1094 adv
= phy_read(phydev
, MII_CTRL1000
);
1099 adv
&= ~(ADVERTISE_1000FULL
| ADVERTISE_1000HALF
);
1101 if (phydev
->supported
& (SUPPORTED_1000baseT_Half
|
1102 SUPPORTED_1000baseT_Full
)) {
1103 adv
|= ethtool_adv_to_mii_ctrl1000_t(advertise
);
1109 err
= phy_write(phydev
, MII_CTRL1000
, adv
);
1117 * genphy_setup_forced - configures/forces speed/duplex from @phydev
1118 * @phydev: target phy_device struct
1120 * Description: Configures MII_BMCR to force speed/duplex
1121 * to the values in phydev. Assumes that the values are valid.
1122 * Please see phy_sanitize_settings().
1124 int genphy_setup_forced(struct phy_device
*phydev
)
1129 phydev
->asym_pause
= 0;
1131 if (SPEED_1000
== phydev
->speed
)
1132 ctl
|= BMCR_SPEED1000
;
1133 else if (SPEED_100
== phydev
->speed
)
1134 ctl
|= BMCR_SPEED100
;
1136 if (DUPLEX_FULL
== phydev
->duplex
)
1137 ctl
|= BMCR_FULLDPLX
;
1139 return phy_write(phydev
, MII_BMCR
, ctl
);
1141 EXPORT_SYMBOL(genphy_setup_forced
);
1144 * genphy_restart_aneg - Enable and Restart Autonegotiation
1145 * @phydev: target phy_device struct
1147 int genphy_restart_aneg(struct phy_device
*phydev
)
1149 int ctl
= phy_read(phydev
, MII_BMCR
);
1154 ctl
|= BMCR_ANENABLE
| BMCR_ANRESTART
;
1156 /* Don't isolate the PHY if we're negotiating */
1157 ctl
&= ~BMCR_ISOLATE
;
1159 return phy_write(phydev
, MII_BMCR
, ctl
);
1161 EXPORT_SYMBOL(genphy_restart_aneg
);
1164 * genphy_config_aneg - restart auto-negotiation or write BMCR
1165 * @phydev: target phy_device struct
1167 * Description: If auto-negotiation is enabled, we configure the
1168 * advertising, and then restart auto-negotiation. If it is not
1169 * enabled, then we write the BMCR.
1171 int genphy_config_aneg(struct phy_device
*phydev
)
1175 if (AUTONEG_ENABLE
!= phydev
->autoneg
)
1176 return genphy_setup_forced(phydev
);
1178 result
= genphy_config_advert(phydev
);
1179 if (result
< 0) /* error */
1182 /* Advertisement hasn't changed, but maybe aneg was never on to
1183 * begin with? Or maybe phy was isolated?
1185 int ctl
= phy_read(phydev
, MII_BMCR
);
1190 if (!(ctl
& BMCR_ANENABLE
) || (ctl
& BMCR_ISOLATE
))
1191 result
= 1; /* do restart aneg */
1194 /* Only restart aneg if we are advertising something different
1195 * than we were before.
1198 result
= genphy_restart_aneg(phydev
);
1202 EXPORT_SYMBOL(genphy_config_aneg
);
1205 * genphy_aneg_done - return auto-negotiation status
1206 * @phydev: target phy_device struct
1208 * Description: Reads the status register and returns 0 either if
1209 * auto-negotiation is incomplete, or if there was an error.
1210 * Returns BMSR_ANEGCOMPLETE if auto-negotiation is done.
1212 int genphy_aneg_done(struct phy_device
*phydev
)
1214 int retval
= phy_read(phydev
, MII_BMSR
);
1216 return (retval
< 0) ? retval
: (retval
& BMSR_ANEGCOMPLETE
);
1218 EXPORT_SYMBOL(genphy_aneg_done
);
1220 static int gen10g_config_aneg(struct phy_device
*phydev
)
1226 * genphy_update_link - update link status in @phydev
1227 * @phydev: target phy_device struct
1229 * Description: Update the value in phydev->link to reflect the
1230 * current link value. In order to do this, we need to read
1231 * the status register twice, keeping the second value.
1233 int genphy_update_link(struct phy_device
*phydev
)
1237 /* Do a fake read */
1238 status
= phy_read(phydev
, MII_BMSR
);
1242 /* Read link and autonegotiation status */
1243 status
= phy_read(phydev
, MII_BMSR
);
1247 if ((status
& BMSR_LSTATUS
) == 0)
1254 EXPORT_SYMBOL(genphy_update_link
);
1257 * genphy_read_status - check the link status and update current link state
1258 * @phydev: target phy_device struct
1260 * Description: Check the link, then figure out the current state
1261 * by comparing what we advertise with what the link partner
1262 * advertises. Start by checking the gigabit possibilities,
1263 * then move on to 10/100.
1265 int genphy_read_status(struct phy_device
*phydev
)
1272 int common_adv_gb
= 0;
1274 /* Update the link, but return if there was an error */
1275 err
= genphy_update_link(phydev
);
1279 phydev
->lp_advertising
= 0;
1281 if (AUTONEG_ENABLE
== phydev
->autoneg
) {
1282 if (phydev
->supported
& (SUPPORTED_1000baseT_Half
1283 | SUPPORTED_1000baseT_Full
)) {
1284 lpagb
= phy_read(phydev
, MII_STAT1000
);
1288 adv
= phy_read(phydev
, MII_CTRL1000
);
1292 phydev
->lp_advertising
=
1293 mii_stat1000_to_ethtool_lpa_t(lpagb
);
1294 common_adv_gb
= lpagb
& adv
<< 2;
1297 lpa
= phy_read(phydev
, MII_LPA
);
1301 phydev
->lp_advertising
|= mii_lpa_to_ethtool_lpa_t(lpa
);
1303 adv
= phy_read(phydev
, MII_ADVERTISE
);
1307 common_adv
= lpa
& adv
;
1309 phydev
->speed
= SPEED_10
;
1310 phydev
->duplex
= DUPLEX_HALF
;
1312 phydev
->asym_pause
= 0;
1314 if (common_adv_gb
& (LPA_1000FULL
| LPA_1000HALF
)) {
1315 phydev
->speed
= SPEED_1000
;
1317 if (common_adv_gb
& LPA_1000FULL
)
1318 phydev
->duplex
= DUPLEX_FULL
;
1319 } else if (common_adv
& (LPA_100FULL
| LPA_100HALF
)) {
1320 phydev
->speed
= SPEED_100
;
1322 if (common_adv
& LPA_100FULL
)
1323 phydev
->duplex
= DUPLEX_FULL
;
1325 if (common_adv
& LPA_10FULL
)
1326 phydev
->duplex
= DUPLEX_FULL
;
1328 if (phydev
->duplex
== DUPLEX_FULL
) {
1329 phydev
->pause
= lpa
& LPA_PAUSE_CAP
? 1 : 0;
1330 phydev
->asym_pause
= lpa
& LPA_PAUSE_ASYM
? 1 : 0;
1333 int bmcr
= phy_read(phydev
, MII_BMCR
);
1338 if (bmcr
& BMCR_FULLDPLX
)
1339 phydev
->duplex
= DUPLEX_FULL
;
1341 phydev
->duplex
= DUPLEX_HALF
;
1343 if (bmcr
& BMCR_SPEED1000
)
1344 phydev
->speed
= SPEED_1000
;
1345 else if (bmcr
& BMCR_SPEED100
)
1346 phydev
->speed
= SPEED_100
;
1348 phydev
->speed
= SPEED_10
;
1351 phydev
->asym_pause
= 0;
1356 EXPORT_SYMBOL(genphy_read_status
);
1358 static int gen10g_read_status(struct phy_device
*phydev
)
1361 u32 mmd_mask
= phydev
->c45_ids
.devices_in_package
;
1365 /* For now just lie and say it's 10G all the time */
1366 phydev
->speed
= SPEED_10000
;
1367 phydev
->duplex
= DUPLEX_FULL
;
1369 for (devad
= 0; mmd_mask
; devad
++, mmd_mask
= mmd_mask
>> 1) {
1370 if (!(mmd_mask
& 1))
1373 /* Read twice because link state is latched and a
1374 * read moves the current state into the register
1376 phy_read_mmd(phydev
, devad
, MDIO_STAT1
);
1377 reg
= phy_read_mmd(phydev
, devad
, MDIO_STAT1
);
1378 if (reg
< 0 || !(reg
& MDIO_STAT1_LSTATUS
))
1386 * genphy_soft_reset - software reset the PHY via BMCR_RESET bit
1387 * @phydev: target phy_device struct
1389 * Description: Perform a software PHY reset using the standard
1390 * BMCR_RESET bit and poll for the reset bit to be cleared.
1392 * Returns: 0 on success, < 0 on failure
1394 int genphy_soft_reset(struct phy_device
*phydev
)
1398 ret
= phy_write(phydev
, MII_BMCR
, BMCR_RESET
);
1402 return phy_poll_reset(phydev
);
1404 EXPORT_SYMBOL(genphy_soft_reset
);
1406 int genphy_config_init(struct phy_device
*phydev
)
1411 features
= (SUPPORTED_TP
| SUPPORTED_MII
1412 | SUPPORTED_AUI
| SUPPORTED_FIBRE
|
1413 SUPPORTED_BNC
| SUPPORTED_Pause
| SUPPORTED_Asym_Pause
);
1415 /* Do we support autonegotiation? */
1416 val
= phy_read(phydev
, MII_BMSR
);
1420 if (val
& BMSR_ANEGCAPABLE
)
1421 features
|= SUPPORTED_Autoneg
;
1423 if (val
& BMSR_100FULL
)
1424 features
|= SUPPORTED_100baseT_Full
;
1425 if (val
& BMSR_100HALF
)
1426 features
|= SUPPORTED_100baseT_Half
;
1427 if (val
& BMSR_10FULL
)
1428 features
|= SUPPORTED_10baseT_Full
;
1429 if (val
& BMSR_10HALF
)
1430 features
|= SUPPORTED_10baseT_Half
;
1432 if (val
& BMSR_ESTATEN
) {
1433 val
= phy_read(phydev
, MII_ESTATUS
);
1437 if (val
& ESTATUS_1000_TFULL
)
1438 features
|= SUPPORTED_1000baseT_Full
;
1439 if (val
& ESTATUS_1000_THALF
)
1440 features
|= SUPPORTED_1000baseT_Half
;
1443 phydev
->supported
&= features
;
1444 phydev
->advertising
&= features
;
1449 static int gen10g_soft_reset(struct phy_device
*phydev
)
1451 /* Do nothing for now */
1454 EXPORT_SYMBOL(genphy_config_init
);
1456 static int gen10g_config_init(struct phy_device
*phydev
)
1458 /* Temporarily just say we support everything */
1459 phydev
->supported
= SUPPORTED_10000baseT_Full
;
1460 phydev
->advertising
= SUPPORTED_10000baseT_Full
;
1465 int genphy_suspend(struct phy_device
*phydev
)
1469 mutex_lock(&phydev
->lock
);
1471 value
= phy_read(phydev
, MII_BMCR
);
1472 phy_write(phydev
, MII_BMCR
, value
| BMCR_PDOWN
);
1474 mutex_unlock(&phydev
->lock
);
1478 EXPORT_SYMBOL(genphy_suspend
);
1480 static int gen10g_suspend(struct phy_device
*phydev
)
1485 int genphy_resume(struct phy_device
*phydev
)
1489 mutex_lock(&phydev
->lock
);
1491 value
= phy_read(phydev
, MII_BMCR
);
1492 phy_write(phydev
, MII_BMCR
, value
& ~BMCR_PDOWN
);
1494 mutex_unlock(&phydev
->lock
);
1498 EXPORT_SYMBOL(genphy_resume
);
1500 static int gen10g_resume(struct phy_device
*phydev
)
1505 static int __set_phy_supported(struct phy_device
*phydev
, u32 max_speed
)
1507 /* The default values for phydev->supported are provided by the PHY
1508 * driver "features" member, we want to reset to sane defaults first
1509 * before supporting higher speeds.
1511 phydev
->supported
&= PHY_DEFAULT_FEATURES
;
1513 switch (max_speed
) {
1517 phydev
->supported
|= PHY_1000BT_FEATURES
;
1520 phydev
->supported
|= PHY_100BT_FEATURES
;
1523 phydev
->supported
|= PHY_10BT_FEATURES
;
1529 int phy_set_max_speed(struct phy_device
*phydev
, u32 max_speed
)
1533 err
= __set_phy_supported(phydev
, max_speed
);
1537 phydev
->advertising
= phydev
->supported
;
1541 EXPORT_SYMBOL(phy_set_max_speed
);
1543 static void of_set_phy_supported(struct phy_device
*phydev
)
1545 struct device_node
*node
= phydev
->mdio
.dev
.of_node
;
1548 if (!IS_ENABLED(CONFIG_OF_MDIO
))
1554 if (!of_property_read_u32(node
, "max-speed", &max_speed
))
1555 __set_phy_supported(phydev
, max_speed
);
1559 * phy_probe - probe and init a PHY device
1560 * @dev: device to probe and init
1562 * Description: Take care of setting up the phy_device structure,
1563 * set the state to READY (the driver's init function should
1564 * set it to STARTING if needed).
1566 static int phy_probe(struct device
*dev
)
1568 struct phy_device
*phydev
= to_phy_device(dev
);
1569 struct device_driver
*drv
= phydev
->mdio
.dev
.driver
;
1570 struct phy_driver
*phydrv
= to_phy_driver(drv
);
1573 phydev
->drv
= phydrv
;
1575 /* Disable the interrupt if the PHY doesn't support it
1576 * but the interrupt is still a valid one
1578 if (!(phydrv
->flags
& PHY_HAS_INTERRUPT
) &&
1579 phy_interrupt_is_valid(phydev
))
1580 phydev
->irq
= PHY_POLL
;
1582 if (phydrv
->flags
& PHY_IS_INTERNAL
)
1583 phydev
->is_internal
= true;
1585 mutex_lock(&phydev
->lock
);
1587 /* Start out supporting everything. Eventually,
1588 * a controller will attach, and may modify one
1589 * or both of these values
1591 phydev
->supported
= phydrv
->features
;
1592 of_set_phy_supported(phydev
);
1593 phydev
->advertising
= phydev
->supported
;
1595 /* Set the state to READY by default */
1596 phydev
->state
= PHY_READY
;
1598 if (phydev
->drv
->probe
)
1599 err
= phydev
->drv
->probe(phydev
);
1601 mutex_unlock(&phydev
->lock
);
1606 static int phy_remove(struct device
*dev
)
1608 struct phy_device
*phydev
= to_phy_device(dev
);
1610 mutex_lock(&phydev
->lock
);
1611 phydev
->state
= PHY_DOWN
;
1612 mutex_unlock(&phydev
->lock
);
1614 if (phydev
->drv
->remove
)
1615 phydev
->drv
->remove(phydev
);
1622 * phy_driver_register - register a phy_driver with the PHY layer
1623 * @new_driver: new phy_driver to register
1624 * @owner: module owning this PHY
1626 int phy_driver_register(struct phy_driver
*new_driver
, struct module
*owner
)
1630 new_driver
->mdiodrv
.flags
|= MDIO_DEVICE_IS_PHY
;
1631 new_driver
->mdiodrv
.driver
.name
= new_driver
->name
;
1632 new_driver
->mdiodrv
.driver
.bus
= &mdio_bus_type
;
1633 new_driver
->mdiodrv
.driver
.probe
= phy_probe
;
1634 new_driver
->mdiodrv
.driver
.remove
= phy_remove
;
1635 new_driver
->mdiodrv
.driver
.owner
= owner
;
1637 retval
= driver_register(&new_driver
->mdiodrv
.driver
);
1639 pr_err("%s: Error %d in registering driver\n",
1640 new_driver
->name
, retval
);
1645 pr_debug("%s: Registered new driver\n", new_driver
->name
);
1649 EXPORT_SYMBOL(phy_driver_register
);
1651 int phy_drivers_register(struct phy_driver
*new_driver
, int n
,
1652 struct module
*owner
)
1656 for (i
= 0; i
< n
; i
++) {
1657 ret
= phy_driver_register(new_driver
+ i
, owner
);
1660 phy_driver_unregister(new_driver
+ i
);
1666 EXPORT_SYMBOL(phy_drivers_register
);
1668 void phy_driver_unregister(struct phy_driver
*drv
)
1670 driver_unregister(&drv
->mdiodrv
.driver
);
1672 EXPORT_SYMBOL(phy_driver_unregister
);
1674 void phy_drivers_unregister(struct phy_driver
*drv
, int n
)
1678 for (i
= 0; i
< n
; i
++)
1679 phy_driver_unregister(drv
+ i
);
1681 EXPORT_SYMBOL(phy_drivers_unregister
);
1683 static struct phy_driver genphy_driver
[] = {
1685 .phy_id
= 0xffffffff,
1686 .phy_id_mask
= 0xffffffff,
1687 .name
= "Generic PHY",
1688 .soft_reset
= genphy_soft_reset
,
1689 .config_init
= genphy_config_init
,
1690 .features
= PHY_GBIT_FEATURES
| SUPPORTED_MII
|
1691 SUPPORTED_AUI
| SUPPORTED_FIBRE
|
1693 .config_aneg
= genphy_config_aneg
,
1694 .aneg_done
= genphy_aneg_done
,
1695 .read_status
= genphy_read_status
,
1696 .suspend
= genphy_suspend
,
1697 .resume
= genphy_resume
,
1699 .phy_id
= 0xffffffff,
1700 .phy_id_mask
= 0xffffffff,
1701 .name
= "Generic 10G PHY",
1702 .soft_reset
= gen10g_soft_reset
,
1703 .config_init
= gen10g_config_init
,
1705 .config_aneg
= gen10g_config_aneg
,
1706 .read_status
= gen10g_read_status
,
1707 .suspend
= gen10g_suspend
,
1708 .resume
= gen10g_resume
,
1711 static int __init
phy_init(void)
1715 rc
= mdio_bus_init();
1719 rc
= phy_drivers_register(genphy_driver
,
1720 ARRAY_SIZE(genphy_driver
), THIS_MODULE
);
1727 static void __exit
phy_exit(void)
1729 phy_drivers_unregister(genphy_driver
,
1730 ARRAY_SIZE(genphy_driver
));
1734 subsys_initcall(phy_init
);
1735 module_exit(phy_exit
);