1 // SPDX-License-Identifier: GPL-2.0-only
3 * Clause 45 PHY support
5 #include <linux/ethtool.h>
6 #include <linux/export.h>
7 #include <linux/mdio.h>
11 #include "mdio-open-alliance.h"
14 * genphy_c45_baset1_able - checks if the PMA has BASE-T1 extended abilities
15 * @phydev: target phy_device struct
17 static bool genphy_c45_baset1_able(struct phy_device *phydev)
21 if (phydev->pma_extable == -ENODATA) {
22 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_EXTABLE);
26 phydev->pma_extable = val;
29 return !!(phydev->pma_extable & MDIO_PMA_EXTABLE_BT1);
33 * genphy_c45_pma_can_sleep - checks if the PMA have sleep support
34 * @phydev: target phy_device struct
36 static bool genphy_c45_pma_can_sleep(struct phy_device *phydev)
40 stat1 = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_STAT1);
44 return !!(stat1 & MDIO_STAT1_LPOWERABLE);
48 * genphy_c45_pma_resume - wakes up the PMA module
49 * @phydev: target phy_device struct
51 int genphy_c45_pma_resume(struct phy_device *phydev)
53 if (!genphy_c45_pma_can_sleep(phydev))
56 return phy_clear_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1,
59 EXPORT_SYMBOL_GPL(genphy_c45_pma_resume);
62 * genphy_c45_pma_suspend - suspends the PMA module
63 * @phydev: target phy_device struct
65 int genphy_c45_pma_suspend(struct phy_device *phydev)
67 if (!genphy_c45_pma_can_sleep(phydev))
70 return phy_set_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1,
73 EXPORT_SYMBOL_GPL(genphy_c45_pma_suspend);
76 * genphy_c45_pma_baset1_setup_master_slave - configures forced master/slave
77 * role of BaseT1 devices.
78 * @phydev: target phy_device struct
80 int genphy_c45_pma_baset1_setup_master_slave(struct phy_device *phydev)
84 switch (phydev->master_slave_set) {
85 case MASTER_SLAVE_CFG_MASTER_PREFERRED:
86 case MASTER_SLAVE_CFG_MASTER_FORCE:
87 ctl = MDIO_PMA_PMD_BT1_CTRL_CFG_MST;
89 case MASTER_SLAVE_CFG_SLAVE_FORCE:
90 case MASTER_SLAVE_CFG_SLAVE_PREFERRED:
92 case MASTER_SLAVE_CFG_UNKNOWN:
93 case MASTER_SLAVE_CFG_UNSUPPORTED:
96 phydev_warn(phydev, "Unsupported Master/Slave mode\n");
100 return phy_modify_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_PMD_BT1_CTRL,
101 MDIO_PMA_PMD_BT1_CTRL_CFG_MST, ctl);
103 EXPORT_SYMBOL_GPL(genphy_c45_pma_baset1_setup_master_slave);
106 * genphy_c45_pma_setup_forced - configures a forced speed
107 * @phydev: target phy_device struct
109 int genphy_c45_pma_setup_forced(struct phy_device *phydev)
111 int bt1_ctrl, ctrl1, ctrl2, ret;
113 /* Half duplex is not supported */
114 if (phydev->duplex != DUPLEX_FULL)
117 ctrl1 = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1);
121 ctrl2 = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL2);
125 ctrl1 &= ~MDIO_CTRL1_SPEEDSEL;
127 * PMA/PMD type selection is 1.7.5:0 not 1.7.3:0. See 45.2.1.6.1
128 * in 802.3-2012 and 802.3-2015.
130 ctrl2 &= ~(MDIO_PMA_CTRL2_TYPE | 0x30);
132 switch (phydev->speed) {
134 if (genphy_c45_baset1_able(phydev))
135 ctrl2 |= MDIO_PMA_CTRL2_BASET1;
137 ctrl2 |= MDIO_PMA_CTRL2_10BT;
140 ctrl1 |= MDIO_PMA_CTRL1_SPEED100;
141 ctrl2 |= MDIO_PMA_CTRL2_100BTX;
144 ctrl1 |= MDIO_PMA_CTRL1_SPEED1000;
145 /* Assume 1000base-T */
146 ctrl2 |= MDIO_PMA_CTRL2_1000BT;
149 ctrl1 |= MDIO_CTRL1_SPEED2_5G;
150 /* Assume 2.5Gbase-T */
151 ctrl2 |= MDIO_PMA_CTRL2_2_5GBT;
154 ctrl1 |= MDIO_CTRL1_SPEED5G;
155 /* Assume 5Gbase-T */
156 ctrl2 |= MDIO_PMA_CTRL2_5GBT;
159 ctrl1 |= MDIO_CTRL1_SPEED10G;
160 /* Assume 10Gbase-T */
161 ctrl2 |= MDIO_PMA_CTRL2_10GBT;
167 ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, ctrl1);
171 ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL2, ctrl2);
175 if (genphy_c45_baset1_able(phydev)) {
176 ret = genphy_c45_pma_baset1_setup_master_slave(phydev);
181 if (phydev->speed == SPEED_1000)
182 bt1_ctrl = MDIO_PMA_PMD_BT1_CTRL_STRAP_B1000;
184 ret = phy_modify_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_PMD_BT1_CTRL,
185 MDIO_PMA_PMD_BT1_CTRL_STRAP, bt1_ctrl);
190 return genphy_c45_an_disable_aneg(phydev);
192 EXPORT_SYMBOL_GPL(genphy_c45_pma_setup_forced);
194 /* Sets master/slave preference and supported technologies.
195 * The preference is set in the BIT(4) of BASE-T1 AN
196 * advertisement register 7.515 and whether the status
197 * is forced or not, it is set in the BIT(12) of BASE-T1
198 * AN advertisement register 7.514.
199 * Sets 10BASE-T1L Ability BIT(14) in BASE-T1 autonegotiation
200 * advertisement register [31:16] if supported.
202 static int genphy_c45_baset1_an_config_aneg(struct phy_device *phydev)
204 u16 adv_l_mask, adv_l = 0;
205 u16 adv_m_mask, adv_m = 0;
209 adv_l_mask = MDIO_AN_T1_ADV_L_FORCE_MS | MDIO_AN_T1_ADV_L_PAUSE_CAP |
210 MDIO_AN_T1_ADV_L_PAUSE_ASYM;
211 adv_m_mask = MDIO_AN_T1_ADV_M_MST | MDIO_AN_T1_ADV_M_B10L;
213 switch (phydev->master_slave_set) {
214 case MASTER_SLAVE_CFG_MASTER_FORCE:
215 adv_m |= MDIO_AN_T1_ADV_M_MST;
217 case MASTER_SLAVE_CFG_SLAVE_FORCE:
218 adv_l |= MDIO_AN_T1_ADV_L_FORCE_MS;
220 case MASTER_SLAVE_CFG_MASTER_PREFERRED:
221 adv_m |= MDIO_AN_T1_ADV_M_MST;
223 case MASTER_SLAVE_CFG_SLAVE_PREFERRED:
225 case MASTER_SLAVE_CFG_UNKNOWN:
226 case MASTER_SLAVE_CFG_UNSUPPORTED:
227 /* if master/slave role is not specified, do not overwrite it */
228 adv_l_mask &= ~MDIO_AN_T1_ADV_L_FORCE_MS;
229 adv_m_mask &= ~MDIO_AN_T1_ADV_M_MST;
232 phydev_warn(phydev, "Unsupported Master/Slave mode\n");
236 adv_l |= linkmode_adv_to_mii_t1_adv_l_t(phydev->advertising);
238 ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_T1_ADV_L,
245 adv_m |= linkmode_adv_to_mii_t1_adv_m_t(phydev->advertising);
247 ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_T1_ADV_M,
258 * genphy_c45_an_config_aneg - configure advertisement registers
259 * @phydev: target phy_device struct
261 * Configure advertisement registers based on modes set in phydev->advertising
263 * Returns negative errno code on failure, 0 if advertisement didn't change,
264 * or 1 if advertised modes changed.
266 int genphy_c45_an_config_aneg(struct phy_device *phydev)
268 int changed = 0, ret;
271 linkmode_and(phydev->advertising, phydev->advertising,
274 ret = genphy_c45_an_config_eee_aneg(phydev);
280 if (genphy_c45_baset1_able(phydev))
281 return genphy_c45_baset1_an_config_aneg(phydev);
283 adv = linkmode_adv_to_mii_adv_t(phydev->advertising);
285 ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_ADVERTISE,
286 ADVERTISE_ALL | ADVERTISE_100BASE4 |
287 ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM,
294 adv = linkmode_adv_to_mii_10gbt_adv_t(phydev->advertising);
296 ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
297 MDIO_AN_10GBT_CTRL_ADV10G |
298 MDIO_AN_10GBT_CTRL_ADV5G |
299 MDIO_AN_10GBT_CTRL_ADV2_5G, adv);
307 EXPORT_SYMBOL_GPL(genphy_c45_an_config_aneg);
310 * genphy_c45_an_disable_aneg - disable auto-negotiation
311 * @phydev: target phy_device struct
313 * Disable auto-negotiation in the Clause 45 PHY. The link parameters
314 * are controlled through the PMA/PMD MMD registers.
316 * Returns zero on success, negative errno code on failure.
318 int genphy_c45_an_disable_aneg(struct phy_device *phydev)
320 u16 reg = MDIO_CTRL1;
322 if (genphy_c45_baset1_able(phydev))
323 reg = MDIO_AN_T1_CTRL;
325 return phy_clear_bits_mmd(phydev, MDIO_MMD_AN, reg,
326 MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART);
328 EXPORT_SYMBOL_GPL(genphy_c45_an_disable_aneg);
331 * genphy_c45_restart_aneg - Enable and restart auto-negotiation
332 * @phydev: target phy_device struct
334 * This assumes that the auto-negotiation MMD is present.
336 * Enable and restart auto-negotiation.
338 int genphy_c45_restart_aneg(struct phy_device *phydev)
340 u16 reg = MDIO_CTRL1;
342 if (genphy_c45_baset1_able(phydev))
343 reg = MDIO_AN_T1_CTRL;
345 return phy_set_bits_mmd(phydev, MDIO_MMD_AN, reg,
346 MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART);
348 EXPORT_SYMBOL_GPL(genphy_c45_restart_aneg);
351 * genphy_c45_check_and_restart_aneg - Enable and restart auto-negotiation
352 * @phydev: target phy_device struct
353 * @restart: whether aneg restart is requested
355 * This assumes that the auto-negotiation MMD is present.
357 * Check, and restart auto-negotiation if needed.
359 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart)
361 u16 reg = MDIO_CTRL1;
364 if (genphy_c45_baset1_able(phydev))
365 reg = MDIO_AN_T1_CTRL;
368 /* Configure and restart aneg if it wasn't set before */
369 ret = phy_read_mmd(phydev, MDIO_MMD_AN, reg);
373 if (!(ret & MDIO_AN_CTRL1_ENABLE))
378 return genphy_c45_restart_aneg(phydev);
382 EXPORT_SYMBOL_GPL(genphy_c45_check_and_restart_aneg);
385 * genphy_c45_aneg_done - return auto-negotiation complete status
386 * @phydev: target phy_device struct
388 * This assumes that the auto-negotiation MMD is present.
390 * Reads the status register from the auto-negotiation MMD, returning:
391 * - positive if auto-negotiation is complete
392 * - negative errno code on error
395 int genphy_c45_aneg_done(struct phy_device *phydev)
397 int reg = MDIO_STAT1;
400 if (genphy_c45_baset1_able(phydev))
401 reg = MDIO_AN_T1_STAT;
403 val = phy_read_mmd(phydev, MDIO_MMD_AN, reg);
405 return val < 0 ? val : val & MDIO_AN_STAT1_COMPLETE ? 1 : 0;
407 EXPORT_SYMBOL_GPL(genphy_c45_aneg_done);
410 * genphy_c45_read_link - read the overall link status from the MMDs
411 * @phydev: target phy_device struct
413 * Read the link status from the specified MMDs, and if they all indicate
414 * that the link is up, set phydev->link to 1. If an error is encountered,
415 * a negative errno will be returned, otherwise zero.
417 int genphy_c45_read_link(struct phy_device *phydev)
419 u32 mmd_mask = MDIO_DEVS_PMAPMD;
423 if (phydev->c45_ids.mmds_present & MDIO_DEVS_AN) {
424 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1);
428 /* Autoneg is being started, therefore disregard current
429 * link status and report link as down.
431 if (val & MDIO_AN_CTRL1_RESTART) {
437 while (mmd_mask && link) {
438 devad = __ffs(mmd_mask);
439 mmd_mask &= ~BIT(devad);
441 /* The link state is latched low so that momentary link
442 * drops can be detected. Do not double-read the status
443 * in polling mode to detect such short link drops except
444 * the link was already down.
446 if (!phy_polling_mode(phydev) || !phydev->link) {
447 val = phy_read_mmd(phydev, devad, MDIO_STAT1);
450 else if (val & MDIO_STAT1_LSTATUS)
454 val = phy_read_mmd(phydev, devad, MDIO_STAT1);
458 if (!(val & MDIO_STAT1_LSTATUS))
466 EXPORT_SYMBOL_GPL(genphy_c45_read_link);
468 /* Read the Clause 45 defined BASE-T1 AN (7.513) status register to check
469 * if autoneg is complete. If so read the BASE-T1 Autonegotiation
470 * Advertisement registers filling in the link partner advertisement,
471 * pause and asym_pause members in phydev.
473 static int genphy_c45_baset1_read_lpa(struct phy_device *phydev)
477 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_T1_STAT);
481 if (!(val & MDIO_AN_STAT1_COMPLETE)) {
482 linkmode_clear_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->lp_advertising);
483 mii_t1_adv_l_mod_linkmode_t(phydev->lp_advertising, 0);
484 mii_t1_adv_m_mod_linkmode_t(phydev->lp_advertising, 0);
487 phydev->asym_pause = 0;
492 linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->lp_advertising, 1);
494 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_T1_LP_L);
498 mii_t1_adv_l_mod_linkmode_t(phydev->lp_advertising, val);
499 phydev->pause = val & MDIO_AN_T1_ADV_L_PAUSE_CAP ? 1 : 0;
500 phydev->asym_pause = val & MDIO_AN_T1_ADV_L_PAUSE_ASYM ? 1 : 0;
502 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_T1_LP_M);
506 mii_t1_adv_m_mod_linkmode_t(phydev->lp_advertising, val);
512 * genphy_c45_read_lpa - read the link partner advertisement and pause
513 * @phydev: target phy_device struct
515 * Read the Clause 45 defined base (7.19) and 10G (7.33) status registers,
516 * filling in the link partner advertisement, pause and asym_pause members
517 * in @phydev. This assumes that the auto-negotiation MMD is present, and
518 * the backplane bit (7.48.0) is clear. Clause 45 PHY drivers are expected
519 * to fill in the remainder of the link partner advert from vendor registers.
521 int genphy_c45_read_lpa(struct phy_device *phydev)
525 if (genphy_c45_baset1_able(phydev))
526 return genphy_c45_baset1_read_lpa(phydev);
528 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
532 if (!(val & MDIO_AN_STAT1_COMPLETE)) {
533 linkmode_clear_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
534 phydev->lp_advertising);
535 mii_10gbt_stat_mod_linkmode_lpa_t(phydev->lp_advertising, 0);
536 mii_adv_mod_linkmode_adv_t(phydev->lp_advertising, 0);
538 phydev->asym_pause = 0;
543 linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->lp_advertising,
544 val & MDIO_AN_STAT1_LPABLE);
546 /* Read the link partner's base page advertisement */
547 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_LPA);
551 mii_adv_mod_linkmode_adv_t(phydev->lp_advertising, val);
552 phydev->pause = val & LPA_PAUSE_CAP ? 1 : 0;
553 phydev->asym_pause = val & LPA_PAUSE_ASYM ? 1 : 0;
555 /* Read the link partner's 10G advertisement */
556 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_STAT);
560 mii_10gbt_stat_mod_linkmode_lpa_t(phydev->lp_advertising, val);
564 EXPORT_SYMBOL_GPL(genphy_c45_read_lpa);
567 * genphy_c45_pma_baset1_read_master_slave - read forced master/slave
569 * @phydev: target phy_device struct
571 int genphy_c45_pma_baset1_read_master_slave(struct phy_device *phydev)
575 phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN;
576 phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
578 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_PMD_BT1_CTRL);
582 if (val & MDIO_PMA_PMD_BT1_CTRL_CFG_MST) {
583 phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
584 phydev->master_slave_state = MASTER_SLAVE_STATE_MASTER;
586 phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
587 phydev->master_slave_state = MASTER_SLAVE_STATE_SLAVE;
592 EXPORT_SYMBOL_GPL(genphy_c45_pma_baset1_read_master_slave);
595 * genphy_c45_read_pma - read link speed etc from PMA
596 * @phydev: target phy_device struct
598 int genphy_c45_read_pma(struct phy_device *phydev)
602 linkmode_zero(phydev->lp_advertising);
604 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1);
608 switch (val & MDIO_CTRL1_SPEEDSEL) {
610 phydev->speed = SPEED_10;
612 case MDIO_PMA_CTRL1_SPEED100:
613 phydev->speed = SPEED_100;
615 case MDIO_PMA_CTRL1_SPEED1000:
616 phydev->speed = SPEED_1000;
618 case MDIO_CTRL1_SPEED2_5G:
619 phydev->speed = SPEED_2500;
621 case MDIO_CTRL1_SPEED5G:
622 phydev->speed = SPEED_5000;
624 case MDIO_CTRL1_SPEED10G:
625 phydev->speed = SPEED_10000;
628 phydev->speed = SPEED_UNKNOWN;
632 phydev->duplex = DUPLEX_FULL;
634 if (genphy_c45_baset1_able(phydev)) {
635 val = genphy_c45_pma_baset1_read_master_slave(phydev);
642 EXPORT_SYMBOL_GPL(genphy_c45_read_pma);
645 * genphy_c45_read_mdix - read mdix status from PMA
646 * @phydev: target phy_device struct
648 int genphy_c45_read_mdix(struct phy_device *phydev)
652 if (phydev->speed == SPEED_10000) {
653 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD,
654 MDIO_PMA_10GBT_SWAPPOL);
659 case MDIO_PMA_10GBT_SWAPPOL_ABNX | MDIO_PMA_10GBT_SWAPPOL_CDNX:
660 phydev->mdix = ETH_TP_MDI;
664 phydev->mdix = ETH_TP_MDI_X;
668 phydev->mdix = ETH_TP_MDI_INVALID;
675 EXPORT_SYMBOL_GPL(genphy_c45_read_mdix);
678 * genphy_c45_write_eee_adv - write advertised EEE link modes
679 * @phydev: target phy_device struct
680 * @adv: the linkmode advertisement settings
682 int genphy_c45_write_eee_adv(struct phy_device *phydev, unsigned long *adv)
684 int val, changed = 0;
686 if (linkmode_intersects(phydev->supported_eee, PHY_EEE_CAP1_FEATURES)) {
687 val = linkmode_to_mii_eee_cap1_t(adv);
689 /* In eee_broken_modes are stored MDIO_AN_EEE_ADV specific raw
692 val &= ~phydev->eee_broken_modes;
694 /* IEEE 802.3-2018 45.2.7.13 EEE advertisement 1
697 val = phy_modify_mmd_changed(phydev, MDIO_MMD_AN,
699 MDIO_EEE_100TX | MDIO_EEE_1000T |
700 MDIO_EEE_10GT | MDIO_EEE_1000KX |
701 MDIO_EEE_10GKX4 | MDIO_EEE_10GKR,
709 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
710 phydev->supported_eee)) {
711 val = linkmode_adv_to_mii_10base_t1_t(adv);
712 /* IEEE 802.3cg-2019 45.2.7.25 10BASE-T1 AN control register
715 val = phy_modify_mmd_changed(phydev, MDIO_MMD_AN,
716 MDIO_AN_10BT1_AN_CTRL,
717 MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L,
729 * genphy_c45_read_eee_adv - read advertised EEE link modes
730 * @phydev: target phy_device struct
731 * @adv: the linkmode advertisement status
733 int genphy_c45_read_eee_adv(struct phy_device *phydev, unsigned long *adv)
737 if (linkmode_intersects(phydev->supported_eee, PHY_EEE_CAP1_FEATURES)) {
738 /* IEEE 802.3-2018 45.2.7.13 EEE advertisement 1
741 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
745 mii_eee_cap1_mod_linkmode_t(adv, val);
748 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
749 phydev->supported_eee)) {
750 /* IEEE 802.3cg-2019 45.2.7.25 10BASE-T1 AN control register
753 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10BT1_AN_CTRL);
757 mii_10base_t1_adv_mod_linkmode_t(adv, val);
764 * genphy_c45_read_eee_lpa - read advertised LP EEE link modes
765 * @phydev: target phy_device struct
766 * @lpa: the linkmode LP advertisement status
768 static int genphy_c45_read_eee_lpa(struct phy_device *phydev,
773 if (linkmode_intersects(phydev->supported_eee, PHY_EEE_CAP1_FEATURES)) {
774 /* IEEE 802.3-2018 45.2.7.14 EEE link partner ability 1
777 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE);
781 mii_eee_cap1_mod_linkmode_t(lpa, val);
784 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
785 phydev->supported_eee)) {
786 /* IEEE 802.3cg-2019 45.2.7.26 10BASE-T1 AN status register
789 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10BT1_AN_STAT);
793 mii_10base_t1_adv_mod_linkmode_t(lpa, val);
800 * genphy_c45_read_eee_cap1 - read supported EEE link modes from register 3.20
801 * @phydev: target phy_device struct
803 static int genphy_c45_read_eee_cap1(struct phy_device *phydev)
807 /* IEEE 802.3-2018 45.2.3.10 EEE control and capability 1
810 val = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
814 /* The 802.3 2018 standard says the top 2 bits are reserved and should
815 * read as 0. Also, it seems unlikely anybody will build a PHY which
816 * supports 100GBASE-R deep sleep all the way down to 100BASE-TX EEE.
817 * If MDIO_PCS_EEE_ABLE is 0xffff assume EEE is not supported.
822 mii_eee_cap1_mod_linkmode_t(phydev->supported_eee, val);
824 /* Some buggy devices indicate EEE link modes in MDIO_PCS_EEE_ABLE
825 * which they don't support as indicated by BMSR, ESTATUS etc.
827 linkmode_and(phydev->supported_eee, phydev->supported_eee,
834 * genphy_c45_read_eee_abilities - read supported EEE link modes
835 * @phydev: target phy_device struct
837 int genphy_c45_read_eee_abilities(struct phy_device *phydev)
841 /* There is not indicator whether optional register
842 * "EEE control and capability 1" (3.20) is supported. Read it only
843 * on devices with appropriate linkmodes.
845 if (linkmode_intersects(phydev->supported, PHY_EEE_CAP1_FEATURES)) {
846 val = genphy_c45_read_eee_cap1(phydev);
851 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
852 phydev->supported)) {
853 /* IEEE 802.3cg-2019 45.2.1.186b 10BASE-T1L PMA status register
856 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_10T1L_STAT);
860 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
861 phydev->supported_eee,
862 val & MDIO_PMA_10T1L_STAT_EEE);
867 EXPORT_SYMBOL_GPL(genphy_c45_read_eee_abilities);
870 * genphy_c45_an_config_eee_aneg - configure EEE advertisement
871 * @phydev: target phy_device struct
873 int genphy_c45_an_config_eee_aneg(struct phy_device *phydev)
875 if (!phydev->eee_enabled) {
876 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv) = {};
878 return genphy_c45_write_eee_adv(phydev, adv);
881 return genphy_c45_write_eee_adv(phydev, phydev->advertising_eee);
885 * genphy_c45_pma_baset1_read_abilities - read supported baset1 link modes from PMA
886 * @phydev: target phy_device struct
888 * Read the supported link modes from the extended BASE-T1 ability register
890 int genphy_c45_pma_baset1_read_abilities(struct phy_device *phydev)
894 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_PMD_BT1);
898 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
900 val & MDIO_PMA_PMD_BT1_B10L_ABLE);
902 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT,
904 val & MDIO_PMA_PMD_BT1_B100_ABLE);
906 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT,
908 val & MDIO_PMA_PMD_BT1_B1000_ABLE);
910 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_T1_STAT);
914 linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
916 val & MDIO_AN_STAT1_ABLE);
920 EXPORT_SYMBOL_GPL(genphy_c45_pma_baset1_read_abilities);
923 * genphy_c45_pma_read_ext_abilities - read supported link modes from PMA
924 * @phydev: target phy_device struct
926 * Read the supported link modes from the PMA/PMD extended ability register
929 int genphy_c45_pma_read_ext_abilities(struct phy_device *phydev)
933 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_EXTABLE);
937 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT,
939 val & MDIO_PMA_EXTABLE_10GBLRM);
940 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
942 val & MDIO_PMA_EXTABLE_10GBT);
943 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
945 val & MDIO_PMA_EXTABLE_10GBKX4);
946 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
948 val & MDIO_PMA_EXTABLE_10GBKR);
949 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
951 val & MDIO_PMA_EXTABLE_1000BT);
952 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
954 val & MDIO_PMA_EXTABLE_1000BKX);
956 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
958 val & MDIO_PMA_EXTABLE_100BTX);
959 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT,
961 val & MDIO_PMA_EXTABLE_100BTX);
963 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
965 val & MDIO_PMA_EXTABLE_10BT);
966 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT,
968 val & MDIO_PMA_EXTABLE_10BT);
970 if (val & MDIO_PMA_EXTABLE_NBT) {
971 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD,
972 MDIO_PMA_NG_EXTABLE);
976 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
978 val & MDIO_PMA_NG_EXTABLE_2_5GBT);
980 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
982 val & MDIO_PMA_NG_EXTABLE_5GBT);
985 if (val & MDIO_PMA_EXTABLE_BT1) {
986 val = genphy_c45_pma_baset1_read_abilities(phydev);
993 EXPORT_SYMBOL_GPL(genphy_c45_pma_read_ext_abilities);
996 * genphy_c45_pma_read_abilities - read supported link modes from PMA
997 * @phydev: target phy_device struct
999 * Read the supported link modes from the PMA Status 2 (1.8) register. If bit
1000 * 1.8.9 is set, the list of supported modes is build using the values in the
1001 * PMA Extended Abilities (1.11) register, indicating 1000BASET an 10G related
1002 * modes. If bit 1.11.14 is set, then the list is also extended with the modes
1003 * in the 2.5G/5G PMA Extended register (1.21), indicating if 2.5GBASET and
1004 * 5GBASET are supported.
1006 int genphy_c45_pma_read_abilities(struct phy_device *phydev)
1010 linkmode_clear_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->supported);
1011 if (phydev->c45_ids.mmds_present & MDIO_DEVS_AN) {
1012 val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
1016 if (val & MDIO_AN_STAT1_ABLE)
1017 linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
1021 val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_STAT2);
1025 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
1027 val & MDIO_PMA_STAT2_10GBSR);
1029 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
1031 val & MDIO_PMA_STAT2_10GBLR);
1033 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseER_Full_BIT,
1035 val & MDIO_PMA_STAT2_10GBER);
1037 if (val & MDIO_PMA_STAT2_EXTABLE) {
1038 val = genphy_c45_pma_read_ext_abilities(phydev);
1043 /* This is optional functionality. If not supported, we may get an error
1044 * which should be ignored.
1046 genphy_c45_read_eee_abilities(phydev);
1050 EXPORT_SYMBOL_GPL(genphy_c45_pma_read_abilities);
1052 /* Read master/slave preference from registers.
1053 * The preference is read from the BIT(4) of BASE-T1 AN
1054 * advertisement register 7.515 and whether the preference
1055 * is forced or not, it is read from BASE-T1 AN advertisement
1058 int genphy_c45_baset1_read_status(struct phy_device *phydev)
1063 phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
1064 phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN;
1066 ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_T1_ADV_L);
1070 cfg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_T1_ADV_M);
1074 if (ret & MDIO_AN_T1_ADV_L_FORCE_MS) {
1075 if (cfg & MDIO_AN_T1_ADV_M_MST)
1076 phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
1078 phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
1080 if (cfg & MDIO_AN_T1_ADV_M_MST)
1081 phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_PREFERRED;
1083 phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_PREFERRED;
1088 EXPORT_SYMBOL_GPL(genphy_c45_baset1_read_status);
1091 * genphy_c45_read_status - read PHY status
1092 * @phydev: target phy_device struct
1094 * Reads status from PHY and sets phy_device members accordingly.
1096 int genphy_c45_read_status(struct phy_device *phydev)
1100 ret = genphy_c45_read_link(phydev);
1104 phydev->speed = SPEED_UNKNOWN;
1105 phydev->duplex = DUPLEX_UNKNOWN;
1107 phydev->asym_pause = 0;
1109 if (phydev->autoneg == AUTONEG_ENABLE) {
1110 ret = genphy_c45_read_lpa(phydev);
1114 if (genphy_c45_baset1_able(phydev)) {
1115 ret = genphy_c45_baset1_read_status(phydev);
1120 phy_resolve_aneg_linkmode(phydev);
1122 ret = genphy_c45_read_pma(phydev);
1127 EXPORT_SYMBOL_GPL(genphy_c45_read_status);
1130 * genphy_c45_config_aneg - restart auto-negotiation or forced setup
1131 * @phydev: target phy_device struct
1133 * Description: If auto-negotiation is enabled, we configure the
1134 * advertising, and then restart auto-negotiation. If it is not
1135 * enabled, then we force a configuration.
1137 int genphy_c45_config_aneg(struct phy_device *phydev)
1139 bool changed = false;
1142 if (phydev->autoneg == AUTONEG_DISABLE)
1143 return genphy_c45_pma_setup_forced(phydev);
1145 ret = genphy_c45_an_config_aneg(phydev);
1151 return genphy_c45_check_and_restart_aneg(phydev, changed);
1153 EXPORT_SYMBOL_GPL(genphy_c45_config_aneg);
1155 /* The gen10g_* functions are the old Clause 45 stub */
1157 int gen10g_config_aneg(struct phy_device *phydev)
1161 EXPORT_SYMBOL_GPL(gen10g_config_aneg);
1163 int genphy_c45_loopback(struct phy_device *phydev, bool enable)
1165 return phy_modify_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1,
1166 MDIO_PCS_CTRL1_LOOPBACK,
1167 enable ? MDIO_PCS_CTRL1_LOOPBACK : 0);
1169 EXPORT_SYMBOL_GPL(genphy_c45_loopback);
1172 * genphy_c45_fast_retrain - configure fast retrain registers
1173 * @phydev: target phy_device struct
1174 * @enable: enable fast retrain or not
1176 * Description: If fast-retrain is enabled, we configure PHY as
1177 * advertising fast retrain capable and THP Bypass Request, then
1178 * enable fast retrain. If it is not enabled, we configure fast
1181 int genphy_c45_fast_retrain(struct phy_device *phydev, bool enable)
1186 return phy_clear_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_FSRT_CSR,
1187 MDIO_PMA_10GBR_FSRT_ENABLE);
1189 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported)) {
1190 ret = phy_set_bits_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
1191 MDIO_AN_10GBT_CTRL_ADVFSRT2_5G);
1195 ret = phy_set_bits_mmd(phydev, MDIO_MMD_AN, MDIO_AN_CTRL2,
1196 MDIO_AN_THP_BP2_5GT);
1201 return phy_set_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_FSRT_CSR,
1202 MDIO_PMA_10GBR_FSRT_ENABLE);
1204 EXPORT_SYMBOL_GPL(genphy_c45_fast_retrain);
1207 * genphy_c45_plca_get_cfg - get PLCA configuration from standard registers
1208 * @phydev: target phy_device struct
1209 * @plca_cfg: output structure to store the PLCA configuration
1211 * Description: if the PHY complies to the Open Alliance TC14 10BASE-T1S PLCA
1212 * Management Registers specifications, this function can be used to retrieve
1213 * the current PLCA configuration from the standard registers in MMD 31.
1215 int genphy_c45_plca_get_cfg(struct phy_device *phydev,
1216 struct phy_plca_cfg *plca_cfg)
1220 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, MDIO_OATC14_PLCA_IDVER);
1224 if ((ret & MDIO_OATC14_PLCA_IDM) != OATC14_IDM)
1227 plca_cfg->version = ret & ~MDIO_OATC14_PLCA_IDM;
1229 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, MDIO_OATC14_PLCA_CTRL0);
1233 plca_cfg->enabled = !!(ret & MDIO_OATC14_PLCA_EN);
1235 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, MDIO_OATC14_PLCA_CTRL1);
1239 plca_cfg->node_cnt = (ret & MDIO_OATC14_PLCA_NCNT) >> 8;
1240 plca_cfg->node_id = (ret & MDIO_OATC14_PLCA_ID);
1242 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, MDIO_OATC14_PLCA_TOTMR);
1246 plca_cfg->to_tmr = ret & MDIO_OATC14_PLCA_TOT;
1248 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, MDIO_OATC14_PLCA_BURST);
1252 plca_cfg->burst_cnt = (ret & MDIO_OATC14_PLCA_MAXBC) >> 8;
1253 plca_cfg->burst_tmr = (ret & MDIO_OATC14_PLCA_BTMR);
1257 EXPORT_SYMBOL_GPL(genphy_c45_plca_get_cfg);
1260 * genphy_c45_plca_set_cfg - set PLCA configuration using standard registers
1261 * @phydev: target phy_device struct
1262 * @plca_cfg: structure containing the PLCA configuration. Fields set to -1 are
1263 * not to be changed.
1265 * Description: if the PHY complies to the Open Alliance TC14 10BASE-T1S PLCA
1266 * Management Registers specifications, this function can be used to modify
1267 * the PLCA configuration using the standard registers in MMD 31.
1269 int genphy_c45_plca_set_cfg(struct phy_device *phydev,
1270 const struct phy_plca_cfg *plca_cfg)
1275 // PLCA IDVER is read-only
1276 if (plca_cfg->version >= 0)
1279 // first of all, disable PLCA if required
1280 if (plca_cfg->enabled == 0) {
1281 ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2,
1282 MDIO_OATC14_PLCA_CTRL0,
1283 MDIO_OATC14_PLCA_EN);
1289 // check if we need to set the PLCA node count, node ID, or both
1290 if (plca_cfg->node_cnt >= 0 || plca_cfg->node_id >= 0) {
1291 /* if one between node count and node ID is -not- to be
1292 * changed, read the register to later perform merge/purge of
1293 * the configuration as appropriate
1295 if (plca_cfg->node_cnt < 0 || plca_cfg->node_id < 0) {
1296 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2,
1297 MDIO_OATC14_PLCA_CTRL1);
1305 if (plca_cfg->node_cnt >= 0)
1306 val = (val & ~MDIO_OATC14_PLCA_NCNT) |
1307 (plca_cfg->node_cnt << 8);
1309 if (plca_cfg->node_id >= 0)
1310 val = (val & ~MDIO_OATC14_PLCA_ID) |
1311 (plca_cfg->node_id);
1313 ret = phy_write_mmd(phydev, MDIO_MMD_VEND2,
1314 MDIO_OATC14_PLCA_CTRL1, val);
1320 if (plca_cfg->to_tmr >= 0) {
1321 ret = phy_write_mmd(phydev, MDIO_MMD_VEND2,
1322 MDIO_OATC14_PLCA_TOTMR,
1329 // check if we need to set the PLCA burst count, burst timer, or both
1330 if (plca_cfg->burst_cnt >= 0 || plca_cfg->burst_tmr >= 0) {
1331 /* if one between burst count and burst timer is -not- to be
1332 * changed, read the register to later perform merge/purge of
1333 * the configuration as appropriate
1335 if (plca_cfg->burst_cnt < 0 || plca_cfg->burst_tmr < 0) {
1336 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2,
1337 MDIO_OATC14_PLCA_BURST);
1345 if (plca_cfg->burst_cnt >= 0)
1346 val = (val & ~MDIO_OATC14_PLCA_MAXBC) |
1347 (plca_cfg->burst_cnt << 8);
1349 if (plca_cfg->burst_tmr >= 0)
1350 val = (val & ~MDIO_OATC14_PLCA_BTMR) |
1351 (plca_cfg->burst_tmr);
1353 ret = phy_write_mmd(phydev, MDIO_MMD_VEND2,
1354 MDIO_OATC14_PLCA_BURST, val);
1360 // if we need to enable PLCA, do it at the end
1361 if (plca_cfg->enabled > 0) {
1362 ret = phy_set_bits_mmd(phydev, MDIO_MMD_VEND2,
1363 MDIO_OATC14_PLCA_CTRL0,
1364 MDIO_OATC14_PLCA_EN);
1372 EXPORT_SYMBOL_GPL(genphy_c45_plca_set_cfg);
1375 * genphy_c45_plca_get_status - get PLCA status from standard registers
1376 * @phydev: target phy_device struct
1377 * @plca_st: output structure to store the PLCA status
1379 * Description: if the PHY complies to the Open Alliance TC14 10BASE-T1S PLCA
1380 * Management Registers specifications, this function can be used to retrieve
1381 * the current PLCA status information from the standard registers in MMD 31.
1383 int genphy_c45_plca_get_status(struct phy_device *phydev,
1384 struct phy_plca_status *plca_st)
1388 ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, MDIO_OATC14_PLCA_STATUS);
1392 plca_st->pst = !!(ret & MDIO_OATC14_PLCA_PST);
1395 EXPORT_SYMBOL_GPL(genphy_c45_plca_get_status);
1398 * genphy_c45_eee_is_active - get EEE status
1399 * @phydev: target phy_device struct
1400 * @adv: variable to store advertised linkmodes
1401 * @lp: variable to store LP advertised linkmodes
1402 * @is_enabled: variable to store EEE enabled/disabled configuration value
1404 * Description: this function will read local and link partner PHY
1405 * advertisements. Compare them return current EEE state.
1407 int genphy_c45_eee_is_active(struct phy_device *phydev, unsigned long *adv,
1408 unsigned long *lp, bool *is_enabled)
1410 __ETHTOOL_DECLARE_LINK_MODE_MASK(tmp_adv) = {};
1411 __ETHTOOL_DECLARE_LINK_MODE_MASK(tmp_lp) = {};
1412 __ETHTOOL_DECLARE_LINK_MODE_MASK(common);
1413 bool eee_enabled, eee_active;
1416 ret = genphy_c45_read_eee_adv(phydev, tmp_adv);
1420 ret = genphy_c45_read_eee_lpa(phydev, tmp_lp);
1424 eee_enabled = !linkmode_empty(tmp_adv);
1425 linkmode_and(common, tmp_adv, tmp_lp);
1426 if (eee_enabled && !linkmode_empty(common))
1427 eee_active = phy_check_valid(phydev->speed, phydev->duplex,
1433 linkmode_copy(adv, tmp_adv);
1435 linkmode_copy(lp, tmp_lp);
1437 *is_enabled = eee_enabled;
1441 EXPORT_SYMBOL(genphy_c45_eee_is_active);
1444 * genphy_c45_ethtool_get_eee - get EEE supported and status
1445 * @phydev: target phy_device struct
1446 * @data: ethtool_eee data
1448 * Description: it reports the Supported/Advertisement/LP Advertisement
1451 int genphy_c45_ethtool_get_eee(struct phy_device *phydev,
1452 struct ethtool_eee *data)
1454 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv) = {};
1455 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp) = {};
1456 bool overflow = false, is_enabled;
1459 ret = genphy_c45_eee_is_active(phydev, adv, lp, &is_enabled);
1463 data->eee_enabled = is_enabled;
1464 data->eee_active = ret;
1466 if (!ethtool_convert_link_mode_to_legacy_u32(&data->supported,
1467 phydev->supported_eee))
1469 if (!ethtool_convert_link_mode_to_legacy_u32(&data->advertised, adv))
1471 if (!ethtool_convert_link_mode_to_legacy_u32(&data->lp_advertised, lp))
1475 phydev_warn(phydev, "Not all supported or advertised EEE link modes were passed to the user space\n");
1479 EXPORT_SYMBOL(genphy_c45_ethtool_get_eee);
1482 * genphy_c45_ethtool_set_eee - set EEE supported and status
1483 * @phydev: target phy_device struct
1484 * @data: ethtool_eee data
1486 * Description: sets the Supported/Advertisement/LP Advertisement
1487 * capabilities. If eee_enabled is false, no links modes are
1488 * advertised, but the previously advertised link modes are
1489 * retained. This allows EEE to be enabled/disabled in a
1490 * non-destructive way.
1492 int genphy_c45_ethtool_set_eee(struct phy_device *phydev,
1493 struct ethtool_eee *data)
1497 if (data->eee_enabled) {
1498 if (data->advertised) {
1499 __ETHTOOL_DECLARE_LINK_MODE_MASK(adv);
1501 ethtool_convert_legacy_u32_to_link_mode(adv,
1503 linkmode_andnot(adv, adv, phydev->supported_eee);
1504 if (!linkmode_empty(adv)) {
1505 phydev_warn(phydev, "At least some EEE link modes are not supported.\n");
1509 ethtool_convert_legacy_u32_to_link_mode(phydev->advertising_eee,
1512 linkmode_copy(phydev->advertising_eee,
1513 phydev->supported_eee);
1516 phydev->eee_enabled = true;
1518 phydev->eee_enabled = false;
1521 ret = genphy_c45_an_config_eee_aneg(phydev);
1525 return phy_restart_aneg(phydev);
1529 EXPORT_SYMBOL(genphy_c45_ethtool_set_eee);
1531 struct phy_driver genphy_c45_driver = {
1532 .phy_id = 0xffffffff,
1533 .phy_id_mask = 0xffffffff,
1534 .name = "Generic Clause 45 PHY",
1535 .read_status = genphy_c45_read_status,