1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright(c) 2007 Atheros Corporation. All rights reserved.
5 * Derived from Intel e1000 driver
6 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
9 #include <linux/delay.h>
10 #include <linux/mii.h>
11 #include <linux/crc32.h>
17 * return 1 if eeprom exist
19 int atl1c_check_eeprom_exist(struct atl1c_hw *hw)
23 AT_READ_REG(hw, REG_TWSI_DEBUG, &data);
24 if (data & TWSI_DEBUG_DEV_EXIST)
27 AT_READ_REG(hw, REG_MASTER_CTRL, &data);
28 if (data & MASTER_CTRL_OTP_SEL)
33 void atl1c_hw_set_mac_addr(struct atl1c_hw *hw, u8 *mac_addr)
41 value = mac_addr[2] << 24 |
45 AT_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 0, value);
47 value = mac_addr[0] << 8 |
49 AT_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 1, value);
52 /* read mac address from hardware register */
53 static bool atl1c_read_current_addr(struct atl1c_hw *hw, u8 *eth_addr)
57 AT_READ_REG(hw, REG_MAC_STA_ADDR, &addr[0]);
58 AT_READ_REG(hw, REG_MAC_STA_ADDR + 4, &addr[1]);
60 *(u32 *) ð_addr[2] = htonl(addr[0]);
61 *(u16 *) ð_addr[0] = htons((u16)addr[1]);
63 return is_valid_ether_addr(eth_addr);
67 * atl1c_get_permanent_address
68 * return 0 if get valid mac address,
70 static int atl1c_get_permanent_address(struct atl1c_hw *hw)
76 bool raise_vol = false;
78 /* MAC-address from BIOS is the 1st priority */
79 if (atl1c_read_current_addr(hw, hw->perm_mac_addr))
83 AT_READ_REG(hw, REG_OTP_CTRL, &otp_ctrl_data);
84 if (atl1c_check_eeprom_exist(hw)) {
85 if (hw->nic_type == athr_l1c || hw->nic_type == athr_l2c) {
87 if (!(otp_ctrl_data & OTP_CTRL_CLK_EN)) {
88 otp_ctrl_data |= OTP_CTRL_CLK_EN;
89 AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
94 /* raise voltage temporally for l2cb */
95 if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2) {
96 atl1c_read_phy_dbg(hw, MIIDBG_ANACTRL, &phy_data);
97 phy_data &= ~ANACTRL_HB_EN;
98 atl1c_write_phy_dbg(hw, MIIDBG_ANACTRL, phy_data);
99 atl1c_read_phy_dbg(hw, MIIDBG_VOLT_CTRL, &phy_data);
100 phy_data |= VOLT_CTRL_SWLOWEST;
101 atl1c_write_phy_dbg(hw, MIIDBG_VOLT_CTRL, phy_data);
106 AT_READ_REG(hw, REG_TWSI_CTRL, &twsi_ctrl_data);
107 twsi_ctrl_data |= TWSI_CTRL_SW_LDSTART;
108 AT_WRITE_REG(hw, REG_TWSI_CTRL, twsi_ctrl_data);
109 for (i = 0; i < AT_TWSI_EEPROM_TIMEOUT; i++) {
111 AT_READ_REG(hw, REG_TWSI_CTRL, &twsi_ctrl_data);
112 if ((twsi_ctrl_data & TWSI_CTRL_SW_LDSTART) == 0)
115 if (i >= AT_TWSI_EEPROM_TIMEOUT)
118 /* Disable OTP_CLK */
119 if ((hw->nic_type == athr_l1c || hw->nic_type == athr_l2c)) {
120 otp_ctrl_data &= ~OTP_CTRL_CLK_EN;
121 AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
125 atl1c_read_phy_dbg(hw, MIIDBG_ANACTRL, &phy_data);
126 phy_data |= ANACTRL_HB_EN;
127 atl1c_write_phy_dbg(hw, MIIDBG_ANACTRL, phy_data);
128 atl1c_read_phy_dbg(hw, MIIDBG_VOLT_CTRL, &phy_data);
129 phy_data &= ~VOLT_CTRL_SWLOWEST;
130 atl1c_write_phy_dbg(hw, MIIDBG_VOLT_CTRL, phy_data);
134 if (atl1c_read_current_addr(hw, hw->perm_mac_addr))
140 bool atl1c_read_eeprom(struct atl1c_hw *hw, u32 offset, u32 *p_value)
149 return ret; /* address do not align */
151 AT_READ_REG(hw, REG_OTP_CTRL, &otp_ctrl_data);
152 if (!(otp_ctrl_data & OTP_CTRL_CLK_EN))
153 AT_WRITE_REG(hw, REG_OTP_CTRL,
154 (otp_ctrl_data | OTP_CTRL_CLK_EN));
156 AT_WRITE_REG(hw, REG_EEPROM_DATA_LO, 0);
157 control = (offset & EEPROM_CTRL_ADDR_MASK) << EEPROM_CTRL_ADDR_SHIFT;
158 AT_WRITE_REG(hw, REG_EEPROM_CTRL, control);
160 for (i = 0; i < 10; i++) {
162 AT_READ_REG(hw, REG_EEPROM_CTRL, &control);
163 if (control & EEPROM_CTRL_RW)
166 if (control & EEPROM_CTRL_RW) {
167 AT_READ_REG(hw, REG_EEPROM_CTRL, &data);
168 AT_READ_REG(hw, REG_EEPROM_DATA_LO, p_value);
169 data = data & 0xFFFF;
170 *p_value = swab32((data << 16) | (*p_value >> 16));
173 if (!(otp_ctrl_data & OTP_CTRL_CLK_EN))
174 AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
179 * Reads the adapter's MAC address from the EEPROM
181 * hw - Struct containing variables accessed by shared code
183 int atl1c_read_mac_addr(struct atl1c_hw *hw)
187 err = atl1c_get_permanent_address(hw);
189 eth_random_addr(hw->perm_mac_addr);
191 memcpy(hw->mac_addr, hw->perm_mac_addr, sizeof(hw->perm_mac_addr));
198 * set hash value for a multicast address
199 * hash calcu processing :
200 * 1. calcu 32bit CRC for multicast address
201 * 2. reverse crc with MSB to LSB
203 u32 atl1c_hash_mc_addr(struct atl1c_hw *hw, u8 *mc_addr)
209 crc32 = ether_crc_le(6, mc_addr);
210 for (i = 0; i < 32; i++)
211 value |= (((crc32 >> i) & 1) << (31 - i));
217 * Sets the bit in the multicast table corresponding to the hash value.
218 * hw - Struct containing variables accessed by shared code
219 * hash_value - Multicast address hash value
221 void atl1c_hash_set(struct atl1c_hw *hw, u32 hash_value)
223 u32 hash_bit, hash_reg;
227 * The HASH Table is a register array of 2 32-bit registers.
228 * It is treated like an array of 64 bits. We want to set
229 * bit BitArray[hash_value]. So we figure out what register
230 * the bit is in, read it, OR in the new bit, then write
231 * back the new value. The register is determined by the
232 * upper bit of the hash value and the bit within that
233 * register are determined by the lower 5 bits of the value.
235 hash_reg = (hash_value >> 31) & 0x1;
236 hash_bit = (hash_value >> 26) & 0x1F;
238 mta = AT_READ_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg);
240 mta |= (1 << hash_bit);
242 AT_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg, mta);
246 * wait mdio module be idle
250 bool atl1c_wait_mdio_idle(struct atl1c_hw *hw)
255 for (i = 0; i < MDIO_MAX_AC_TO; i++) {
256 AT_READ_REG(hw, REG_MDIO_CTRL, &val);
257 if (!(val & (MDIO_CTRL_BUSY | MDIO_CTRL_START)))
262 return i != MDIO_MAX_AC_TO;
265 void atl1c_stop_phy_polling(struct atl1c_hw *hw)
267 if (!(hw->ctrl_flags & ATL1C_FPGA_VERSION))
270 AT_WRITE_REG(hw, REG_MDIO_CTRL, 0);
271 atl1c_wait_mdio_idle(hw);
274 void atl1c_start_phy_polling(struct atl1c_hw *hw, u16 clk_sel)
278 if (!(hw->ctrl_flags & ATL1C_FPGA_VERSION))
281 val = MDIO_CTRL_SPRES_PRMBL |
282 FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
283 FIELDX(MDIO_CTRL_REG, 1) |
286 AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
287 atl1c_wait_mdio_idle(hw);
288 val |= MDIO_CTRL_AP_EN;
289 val &= ~MDIO_CTRL_START;
290 AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
296 * atl1c_read_phy_core
297 * core function to read register in PHY via MDIO control register.
298 * ext: extension register (see IEEE 802.3)
299 * dev: device address (see IEEE 802.3 DEVAD, PRTAD is fixed to 0)
302 int atl1c_read_phy_core(struct atl1c_hw *hw, bool ext, u8 dev,
303 u16 reg, u16 *phy_data)
306 u16 clk_sel = MDIO_CTRL_CLK_25_4;
308 atl1c_stop_phy_polling(hw);
312 /* only l2c_b2 & l1d_2 could use slow clock */
313 if ((hw->nic_type == athr_l2c_b2 || hw->nic_type == athr_l1d_2) &&
315 clk_sel = MDIO_CTRL_CLK_25_128;
317 val = FIELDX(MDIO_EXTN_DEVAD, dev) | FIELDX(MDIO_EXTN_REG, reg);
318 AT_WRITE_REG(hw, REG_MDIO_EXTN, val);
319 val = MDIO_CTRL_SPRES_PRMBL |
320 FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
325 val = MDIO_CTRL_SPRES_PRMBL |
326 FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
327 FIELDX(MDIO_CTRL_REG, reg) |
331 AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
333 if (!atl1c_wait_mdio_idle(hw))
336 AT_READ_REG(hw, REG_MDIO_CTRL, &val);
337 *phy_data = (u16)FIELD_GETX(val, MDIO_CTRL_DATA);
339 atl1c_start_phy_polling(hw, clk_sel);
345 * atl1c_write_phy_core
346 * core function to write to register in PHY via MDIO control register.
347 * ext: extension register (see IEEE 802.3)
348 * dev: device address (see IEEE 802.3 DEVAD, PRTAD is fixed to 0)
351 int atl1c_write_phy_core(struct atl1c_hw *hw, bool ext, u8 dev,
352 u16 reg, u16 phy_data)
355 u16 clk_sel = MDIO_CTRL_CLK_25_4;
357 atl1c_stop_phy_polling(hw);
360 /* only l2c_b2 & l1d_2 could use slow clock */
361 if ((hw->nic_type == athr_l2c_b2 || hw->nic_type == athr_l1d_2) &&
363 clk_sel = MDIO_CTRL_CLK_25_128;
366 val = FIELDX(MDIO_EXTN_DEVAD, dev) | FIELDX(MDIO_EXTN_REG, reg);
367 AT_WRITE_REG(hw, REG_MDIO_EXTN, val);
368 val = MDIO_CTRL_SPRES_PRMBL |
369 FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
370 FIELDX(MDIO_CTRL_DATA, phy_data) |
374 val = MDIO_CTRL_SPRES_PRMBL |
375 FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
376 FIELDX(MDIO_CTRL_DATA, phy_data) |
377 FIELDX(MDIO_CTRL_REG, reg) |
380 AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
382 if (!atl1c_wait_mdio_idle(hw))
385 atl1c_start_phy_polling(hw, clk_sel);
391 * Reads the value from a PHY register
392 * hw - Struct containing variables accessed by shared code
393 * reg_addr - address of the PHY register to read
395 int atl1c_read_phy_reg(struct atl1c_hw *hw, u16 reg_addr, u16 *phy_data)
397 return atl1c_read_phy_core(hw, false, 0, reg_addr, phy_data);
401 * Writes a value to a PHY register
402 * hw - Struct containing variables accessed by shared code
403 * reg_addr - address of the PHY register to write
404 * data - data to write to the PHY
406 int atl1c_write_phy_reg(struct atl1c_hw *hw, u32 reg_addr, u16 phy_data)
408 return atl1c_write_phy_core(hw, false, 0, reg_addr, phy_data);
411 /* read from PHY extension register */
412 int atl1c_read_phy_ext(struct atl1c_hw *hw, u8 dev_addr,
413 u16 reg_addr, u16 *phy_data)
415 return atl1c_read_phy_core(hw, true, dev_addr, reg_addr, phy_data);
418 /* write to PHY extension register */
419 int atl1c_write_phy_ext(struct atl1c_hw *hw, u8 dev_addr,
420 u16 reg_addr, u16 phy_data)
422 return atl1c_write_phy_core(hw, true, dev_addr, reg_addr, phy_data);
425 int atl1c_read_phy_dbg(struct atl1c_hw *hw, u16 reg_addr, u16 *phy_data)
429 err = atl1c_write_phy_reg(hw, MII_DBG_ADDR, reg_addr);
433 err = atl1c_read_phy_reg(hw, MII_DBG_DATA, phy_data);
438 int atl1c_write_phy_dbg(struct atl1c_hw *hw, u16 reg_addr, u16 phy_data)
442 err = atl1c_write_phy_reg(hw, MII_DBG_ADDR, reg_addr);
446 err = atl1c_write_phy_reg(hw, MII_DBG_DATA, phy_data);
452 * Configures PHY autoneg and flow control advertisement settings
454 * hw - Struct containing variables accessed by shared code
456 static int atl1c_phy_setup_adv(struct atl1c_hw *hw)
458 u16 mii_adv_data = ADVERTISE_DEFAULT_CAP & ~ADVERTISE_ALL;
459 u16 mii_giga_ctrl_data = GIGA_CR_1000T_DEFAULT_CAP &
460 ~GIGA_CR_1000T_SPEED_MASK;
462 if (hw->autoneg_advertised & ADVERTISED_10baseT_Half)
463 mii_adv_data |= ADVERTISE_10HALF;
464 if (hw->autoneg_advertised & ADVERTISED_10baseT_Full)
465 mii_adv_data |= ADVERTISE_10FULL;
466 if (hw->autoneg_advertised & ADVERTISED_100baseT_Half)
467 mii_adv_data |= ADVERTISE_100HALF;
468 if (hw->autoneg_advertised & ADVERTISED_100baseT_Full)
469 mii_adv_data |= ADVERTISE_100FULL;
471 if (hw->autoneg_advertised & ADVERTISED_Autoneg)
472 mii_adv_data |= ADVERTISE_10HALF | ADVERTISE_10FULL |
473 ADVERTISE_100HALF | ADVERTISE_100FULL;
475 if (hw->link_cap_flags & ATL1C_LINK_CAP_1000M) {
476 if (hw->autoneg_advertised & ADVERTISED_1000baseT_Half)
477 mii_giga_ctrl_data |= ADVERTISE_1000HALF;
478 if (hw->autoneg_advertised & ADVERTISED_1000baseT_Full)
479 mii_giga_ctrl_data |= ADVERTISE_1000FULL;
480 if (hw->autoneg_advertised & ADVERTISED_Autoneg)
481 mii_giga_ctrl_data |= ADVERTISE_1000HALF |
485 if (atl1c_write_phy_reg(hw, MII_ADVERTISE, mii_adv_data) != 0 ||
486 atl1c_write_phy_reg(hw, MII_CTRL1000, mii_giga_ctrl_data) != 0)
491 void atl1c_phy_disable(struct atl1c_hw *hw)
493 atl1c_power_saving(hw, 0);
497 int atl1c_phy_reset(struct atl1c_hw *hw)
499 struct atl1c_adapter *adapter = hw->adapter;
500 struct pci_dev *pdev = adapter->pdev;
502 u32 phy_ctrl_data, lpi_ctrl;
506 AT_READ_REG(hw, REG_GPHY_CTRL, &phy_ctrl_data);
507 phy_ctrl_data &= ~(GPHY_CTRL_EXT_RESET | GPHY_CTRL_PHY_IDDQ |
508 GPHY_CTRL_GATE_25M_EN | GPHY_CTRL_PWDOWN_HW | GPHY_CTRL_CLS);
509 phy_ctrl_data |= GPHY_CTRL_SEL_ANA_RST;
510 if (!(hw->ctrl_flags & ATL1C_HIB_DISABLE))
511 phy_ctrl_data |= (GPHY_CTRL_HIB_EN | GPHY_CTRL_HIB_PULSE);
513 phy_ctrl_data &= ~(GPHY_CTRL_HIB_EN | GPHY_CTRL_HIB_PULSE);
514 AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl_data);
517 AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl_data | GPHY_CTRL_EXT_RESET);
519 udelay(10 * GPHY_CTRL_EXT_RST_TO); /* delay 800us */
522 if (hw->nic_type == athr_l2c_b) {
523 atl1c_read_phy_dbg(hw, MIIDBG_CFGLPSPD, &phy_data);
524 atl1c_write_phy_dbg(hw, MIIDBG_CFGLPSPD,
525 phy_data & ~CFGLPSPD_RSTCNT_CLK125SW);
528 /* tx-half amplitude issue fix */
529 if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2) {
530 atl1c_read_phy_dbg(hw, MIIDBG_CABLE1TH_DET, &phy_data);
531 phy_data |= CABLE1TH_DET_EN;
532 atl1c_write_phy_dbg(hw, MIIDBG_CABLE1TH_DET, phy_data);
535 /* clear bit3 of dbgport 3B to lower voltage */
536 if (!(hw->ctrl_flags & ATL1C_HIB_DISABLE)) {
537 if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2) {
538 atl1c_read_phy_dbg(hw, MIIDBG_VOLT_CTRL, &phy_data);
539 phy_data &= ~VOLT_CTRL_SWLOWEST;
540 atl1c_write_phy_dbg(hw, MIIDBG_VOLT_CTRL, phy_data);
542 /* power saving config */
544 hw->nic_type == athr_l1d || hw->nic_type == athr_l1d_2 ?
545 L1D_LEGCYPS_DEF : L1C_LEGCYPS_DEF;
546 atl1c_write_phy_dbg(hw, MIIDBG_LEGCYPS, phy_data);
548 atl1c_write_phy_dbg(hw, MIIDBG_SYSMODCTRL,
549 SYSMODCTRL_IECHOADJ_DEF);
552 atl1c_read_phy_dbg(hw, MIIDBG_LEGCYPS, &phy_data);
553 atl1c_write_phy_dbg(hw, MIIDBG_LEGCYPS,
554 phy_data & ~LEGCYPS_EN);
555 /* disable hibernate */
556 atl1c_read_phy_dbg(hw, MIIDBG_HIBNEG, &phy_data);
557 atl1c_write_phy_dbg(hw, MIIDBG_HIBNEG,
558 phy_data & HIBNEG_PSHIB_EN);
560 /* disable AZ(EEE) by default */
561 if (hw->nic_type == athr_l1d || hw->nic_type == athr_l1d_2 ||
562 hw->nic_type == athr_l2c_b2) {
563 AT_READ_REG(hw, REG_LPI_CTRL, &lpi_ctrl);
564 AT_WRITE_REG(hw, REG_LPI_CTRL, lpi_ctrl & ~LPI_CTRL_EN);
565 atl1c_write_phy_ext(hw, MIIEXT_ANEG, MIIEXT_LOCAL_EEEADV, 0);
566 atl1c_write_phy_ext(hw, MIIEXT_PCS, MIIEXT_CLDCTRL3,
570 /* other debug port to set */
571 atl1c_write_phy_dbg(hw, MIIDBG_ANACTRL, ANACTRL_DEF);
572 atl1c_write_phy_dbg(hw, MIIDBG_SRDSYSMOD, SRDSYSMOD_DEF);
573 atl1c_write_phy_dbg(hw, MIIDBG_TST10BTCFG, TST10BTCFG_DEF);
574 /* UNH-IOL test issue, set bit7 */
575 atl1c_write_phy_dbg(hw, MIIDBG_TST100BTCFG,
576 TST100BTCFG_DEF | TST100BTCFG_LITCH_EN);
578 /* set phy interrupt mask */
579 phy_data = IER_LINK_UP | IER_LINK_DOWN;
580 err = atl1c_write_phy_reg(hw, MII_IER, phy_data);
582 if (netif_msg_hw(adapter))
584 "Error enable PHY linkChange Interrupt\n");
590 int atl1c_phy_init(struct atl1c_hw *hw)
592 struct atl1c_adapter *adapter = hw->adapter;
593 struct pci_dev *pdev = adapter->pdev;
595 u16 mii_bmcr_data = BMCR_RESET;
597 if ((atl1c_read_phy_reg(hw, MII_PHYSID1, &hw->phy_id1) != 0) ||
598 (atl1c_read_phy_reg(hw, MII_PHYSID2, &hw->phy_id2) != 0)) {
599 dev_err(&pdev->dev, "Error get phy ID\n");
602 switch (hw->media_type) {
603 case MEDIA_TYPE_AUTO_SENSOR:
604 ret_val = atl1c_phy_setup_adv(hw);
606 if (netif_msg_link(adapter))
608 "Error Setting up Auto-Negotiation\n");
611 mii_bmcr_data |= BMCR_ANENABLE | BMCR_ANRESTART;
613 case MEDIA_TYPE_100M_FULL:
614 mii_bmcr_data |= BMCR_SPEED100 | BMCR_FULLDPLX;
616 case MEDIA_TYPE_100M_HALF:
617 mii_bmcr_data |= BMCR_SPEED100;
619 case MEDIA_TYPE_10M_FULL:
620 mii_bmcr_data |= BMCR_FULLDPLX;
622 case MEDIA_TYPE_10M_HALF:
625 if (netif_msg_link(adapter))
626 dev_err(&pdev->dev, "Wrong Media type %d\n",
631 ret_val = atl1c_write_phy_reg(hw, MII_BMCR, mii_bmcr_data);
634 hw->phy_configured = true;
639 bool atl1c_get_link_status(struct atl1c_hw *hw)
643 if (hw->nic_type == athr_mt) {
646 AT_READ_REG(hw, REG_MT_SPEED, &spd);
650 /* MII_BMSR must be read twice */
651 atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
652 atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
653 return !!(phy_data & BMSR_LSTATUS);
657 * Detects the current speed and duplex settings of the hardware.
659 * hw - Struct containing variables accessed by shared code
660 * speed - Speed of the connection
661 * duplex - Duplex setting of the connection
663 int atl1c_get_speed_and_duplex(struct atl1c_hw *hw, u16 *speed, u16 *duplex)
668 if (hw->nic_type == athr_mt) {
671 AT_READ_REG(hw, REG_MT_SPEED, &spd);
673 *duplex = FULL_DUPLEX;
677 /* Read PHY Specific Status Register (17) */
678 err = atl1c_read_phy_reg(hw, MII_GIGA_PSSR, &phy_data);
682 if (!(phy_data & GIGA_PSSR_SPD_DPLX_RESOLVED))
685 switch (phy_data & GIGA_PSSR_SPEED) {
686 case GIGA_PSSR_1000MBS:
689 case GIGA_PSSR_100MBS:
692 case GIGA_PSSR_10MBS:
699 if (phy_data & GIGA_PSSR_DPLX)
700 *duplex = FULL_DUPLEX;
702 *duplex = HALF_DUPLEX;
707 /* select one link mode to get lower power consumption */
708 int atl1c_phy_to_ps_link(struct atl1c_hw *hw)
710 struct atl1c_adapter *adapter = hw->adapter;
711 struct pci_dev *pdev = adapter->pdev;
713 u16 autoneg_advertised = ADVERTISED_10baseT_Half;
714 u16 save_autoneg_advertised;
717 u16 duplex = FULL_DUPLEX;
720 if (atl1c_get_link_status(hw)) {
721 atl1c_read_phy_reg(hw, MII_LPA, &mii_lpa_data);
722 if (mii_lpa_data & LPA_10FULL)
723 autoneg_advertised = ADVERTISED_10baseT_Full;
724 else if (mii_lpa_data & LPA_10HALF)
725 autoneg_advertised = ADVERTISED_10baseT_Half;
726 else if (mii_lpa_data & LPA_100HALF)
727 autoneg_advertised = ADVERTISED_100baseT_Half;
728 else if (mii_lpa_data & LPA_100FULL)
729 autoneg_advertised = ADVERTISED_100baseT_Full;
731 save_autoneg_advertised = hw->autoneg_advertised;
732 hw->phy_configured = false;
733 hw->autoneg_advertised = autoneg_advertised;
734 if (atl1c_restart_autoneg(hw) != 0) {
735 dev_dbg(&pdev->dev, "phy autoneg failed\n");
738 hw->autoneg_advertised = save_autoneg_advertised;
741 for (i = 0; i < AT_SUSPEND_LINK_TIMEOUT; i++) {
743 if (atl1c_get_link_status(hw)) {
744 if (atl1c_get_speed_and_duplex(hw, &speed,
747 "get speed and duplex failed\n");
754 duplex = HALF_DUPLEX;
756 adapter->link_speed = speed;
757 adapter->link_duplex = duplex;
762 int atl1c_restart_autoneg(struct atl1c_hw *hw)
765 u16 mii_bmcr_data = BMCR_RESET;
767 err = atl1c_phy_setup_adv(hw);
770 mii_bmcr_data |= BMCR_ANENABLE | BMCR_ANRESTART;
772 return atl1c_write_phy_reg(hw, MII_BMCR, mii_bmcr_data);
775 int atl1c_power_saving(struct atl1c_hw *hw, u32 wufc)
777 struct atl1c_adapter *adapter = hw->adapter;
778 struct pci_dev *pdev = adapter->pdev;
779 u32 master_ctrl, mac_ctrl, phy_ctrl;
784 speed = adapter->link_speed == SPEED_1000 ?
785 MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100;
787 AT_READ_REG(hw, REG_MASTER_CTRL, &master_ctrl);
788 AT_READ_REG(hw, REG_MAC_CTRL, &mac_ctrl);
789 AT_READ_REG(hw, REG_GPHY_CTRL, &phy_ctrl);
791 master_ctrl &= ~MASTER_CTRL_CLK_SEL_DIS;
792 mac_ctrl = FIELD_SETX(mac_ctrl, MAC_CTRL_SPEED, speed);
793 mac_ctrl &= ~(MAC_CTRL_DUPLX | MAC_CTRL_RX_EN | MAC_CTRL_TX_EN);
794 if (adapter->link_duplex == FULL_DUPLEX)
795 mac_ctrl |= MAC_CTRL_DUPLX;
796 phy_ctrl &= ~(GPHY_CTRL_EXT_RESET | GPHY_CTRL_CLS);
797 phy_ctrl |= GPHY_CTRL_SEL_ANA_RST | GPHY_CTRL_HIB_PULSE |
799 if (!wufc) { /* without WoL */
800 master_ctrl |= MASTER_CTRL_CLK_SEL_DIS;
801 phy_ctrl |= GPHY_CTRL_PHY_IDDQ | GPHY_CTRL_PWDOWN_HW;
802 AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl);
803 AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl);
804 AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl);
805 AT_WRITE_REG(hw, REG_WOL_CTRL, 0);
806 hw->phy_configured = false; /* re-init PHY when resume */
809 phy_ctrl |= GPHY_CTRL_EXT_RESET;
810 if (wufc & AT_WUFC_MAG) {
811 mac_ctrl |= MAC_CTRL_RX_EN | MAC_CTRL_BC_EN;
812 wol_ctrl |= WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
813 if (hw->nic_type == athr_l2c_b && hw->revision_id == L2CB_V11)
814 wol_ctrl |= WOL_PATTERN_EN | WOL_PATTERN_PME_EN;
816 if (wufc & AT_WUFC_LNKC) {
817 wol_ctrl |= WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN;
818 if (atl1c_write_phy_reg(hw, MII_IER, IER_LINK_UP) != 0) {
819 dev_dbg(&pdev->dev, "%s: write phy MII_IER failed.\n",
823 /* clear PHY interrupt */
824 atl1c_read_phy_reg(hw, MII_ISR, &phy_data);
826 dev_dbg(&pdev->dev, "%s: suspend MAC=%x,MASTER=%x,PHY=0x%x,WOL=%x\n",
827 atl1c_driver_name, mac_ctrl, master_ctrl, phy_ctrl, wol_ctrl);
828 AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl);
829 AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl);
830 AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl);
831 AT_WRITE_REG(hw, REG_WOL_CTRL, wol_ctrl);
837 /* configure phy after Link change Event */
838 void atl1c_post_phy_linkchg(struct atl1c_hw *hw, u16 link_speed)
841 bool adj_thresh = false;
843 if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2 ||
844 hw->nic_type == athr_l1d || hw->nic_type == athr_l1d_2)
847 if (link_speed != SPEED_0) { /* link up */
848 /* az with brcm, half-amp */
849 if (hw->nic_type == athr_l1d_2) {
850 atl1c_read_phy_ext(hw, MIIEXT_PCS, MIIEXT_CLDCTRL6,
852 phy_val = FIELD_GETX(phy_val, CLDCTRL6_CAB_LEN);
853 phy_val = phy_val > CLDCTRL6_CAB_LEN_SHORT ?
854 AZ_ANADECT_LONG : AZ_ANADECT_DEF;
855 atl1c_write_phy_dbg(hw, MIIDBG_AZ_ANADECT, phy_val);
857 /* threshold adjust */
858 if (adj_thresh && link_speed == SPEED_100 && hw->msi_lnkpatch) {
859 atl1c_write_phy_dbg(hw, MIIDBG_MSE16DB, L1D_MSE16DB_UP);
860 atl1c_write_phy_dbg(hw, MIIDBG_SYSMODCTRL,
861 L1D_SYSMODCTRL_IECHOADJ_DEF);
863 } else { /* link down */
864 if (adj_thresh && hw->msi_lnkpatch) {
865 atl1c_write_phy_dbg(hw, MIIDBG_SYSMODCTRL,
866 SYSMODCTRL_IECHOADJ_DEF);
867 atl1c_write_phy_dbg(hw, MIIDBG_MSE16DB,