drivers/net/phy/broadcom.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  *      drivers/net/phy/broadcom.c
   4  *
   5  *      Broadcom BCM5411, BCM5421 and BCM5461 Gigabit Ethernet
   6  *      transceivers.
   7  *
   8  *      Copyright (c) 2006  Maciej W. Rozycki
   9  *
  10  *      Inspired by code written by Amy Fong.
  11  */
  12
  13 #include "bcm-phy-lib.h"
  14 #include <linux/module.h>
  15 #include <linux/phy.h>
  16 #include <linux/brcmphy.h>
  17 #include <linux/of.h>
  18
  19 #define BRCM_PHY_MODEL(phydev) \
  20         ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
  21
  22 #define BRCM_PHY_REV(phydev) \
  23         ((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
  24
  25 MODULE_DESCRIPTION("Broadcom PHY driver");
  26 MODULE_AUTHOR("Maciej W. Rozycki");
  27 MODULE_LICENSE("GPL");
  28
  29 static int bcm54210e_config_init(struct phy_device *phydev)
  30 {
  31         int val;
  32
  33         val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
  34         val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
  35         val |= MII_BCM54XX_AUXCTL_MISC_WREN;
  36         bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC, val);
  37
  38         val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
  39         val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
  40         bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
  41
  42         if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) {
  43                 val = phy_read(phydev, MII_CTRL1000);
  44                 val |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER;
  45                 phy_write(phydev, MII_CTRL1000, val);
  46         }
  47
  48         return 0;
  49 }
  50
  51 static int bcm54612e_config_init(struct phy_device *phydev)
  52 {
  53         int reg;
  54
  55         /* Clear TX internal delay unless requested. */
  56         if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
  57             (phydev->interface != PHY_INTERFACE_MODE_RGMII_TXID)) {
  58                 /* Disable TXD to GTXCLK clock delay (default set) */
  59                 /* Bit 9 is the only field in shadow register 00011 */
  60                 bcm_phy_write_shadow(phydev, 0x03, 0);
  61         }
  62
  63         /* Clear RX internal delay unless requested. */
  64         if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
  65             (phydev->interface != PHY_INTERFACE_MODE_RGMII_RXID)) {
  66                 reg = bcm54xx_auxctl_read(phydev,
  67                                           MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
  68                 /* Disable RXD to RXC delay (default set) */
  69                 reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
  70                 /* Clear shadow selector field */
  71                 reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MASK;
  72                 bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
  73                                      MII_BCM54XX_AUXCTL_MISC_WREN | reg);
  74         }
  75
  76         /* Enable CLK125 MUX on LED4 if ref clock is enabled. */
  77         if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) {
  78                 int err;
  79
  80                 reg = bcm_phy_read_exp(phydev, BCM54612E_EXP_SPARE0);
  81                 err = bcm_phy_write_exp(phydev, BCM54612E_EXP_SPARE0,
  82                                         BCM54612E_LED4_CLK125OUT_EN | reg);
  83
  84                 if (err < 0)
  85                         return err;
  86         }
  87
  88         return 0;
  89 }
  90
  91 static int bcm54xx_config_clock_delay(struct phy_device *phydev)
  92 {
  93         int rc, val;
  94
  95         /* handling PHY's internal RX clock delay */
  96         val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
  97         val |= MII_BCM54XX_AUXCTL_MISC_WREN;
  98         if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||
  99             phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
 100                 /* Disable RGMII RXC-RXD skew */
 101                 val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
 102         }
 103         if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
 104             phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
 105                 /* Enable RGMII RXC-RXD skew */
 106                 val |= MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
 107         }
 108         rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
 109                                   val);
 110         if (rc < 0)
 111                 return rc;
 112
 113         /* handling PHY's internal TX clock delay */
 114         val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
 115         if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||
 116             phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
 117                 /* Disable internal TX clock delay */
 118                 val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
 119         }
 120         if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
 121             phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
 122                 /* Enable internal TX clock delay */
 123                 val |= BCM54810_SHD_CLK_CTL_GTXCLK_EN;
 124         }
 125         rc = bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
 126         if (rc < 0)
 127                 return rc;
 128
 129         return 0;
 130 }
 131
 132 /* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
 133 static int bcm50610_a0_workaround(struct phy_device *phydev)
 134 {
 135         int err;
 136
 137         err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH0,
 138                                 MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN |
 139                                 MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF);
 140         if (err < 0)
 141                 return err;
 142
 143         err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH3,
 144                                 MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ);
 145         if (err < 0)
 146                 return err;
 147
 148         err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75,
 149                                 MII_BCM54XX_EXP_EXP75_VDACCTRL);
 150         if (err < 0)
 151                 return err;
 152
 153         err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP96,
 154                                 MII_BCM54XX_EXP_EXP96_MYST);
 155         if (err < 0)
 156                 return err;
 157
 158         err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP97,
 159                                 MII_BCM54XX_EXP_EXP97_MYST);
 160
 161         return err;
 162 }
 163
 164 static int bcm54xx_phydsp_config(struct phy_device *phydev)
 165 {
 166         int err, err2;
 167
 168         /* Enable the SMDSP clock */
 169         err = bcm54xx_auxctl_write(phydev,
 170                                    MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
 171                                    MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA |
 172                                    MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
 173         if (err < 0)
 174                 return err;
 175
 176         if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
 177             BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) {
 178                 /* Clear bit 9 to fix a phy interop issue. */
 179                 err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP08,
 180                                         MII_BCM54XX_EXP_EXP08_RJCT_2MHZ);
 181                 if (err < 0)
 182                         goto error;
 183
 184                 if (phydev->drv->phy_id == PHY_ID_BCM50610) {
 185                         err = bcm50610_a0_workaround(phydev);
 186                         if (err < 0)
 187                                 goto error;
 188                 }
 189         }
 190
 191         if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) {
 192                 int val;
 193
 194                 val = bcm_phy_read_exp(phydev, MII_BCM54XX_EXP_EXP75);
 195                 if (val < 0)
 196                         goto error;
 197
 198                 val |= MII_BCM54XX_EXP_EXP75_CM_OSC;
 199                 err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75, val);
 200         }
 201
 202 error:
 203         /* Disable the SMDSP clock */
 204         err2 = bcm54xx_auxctl_write(phydev,
 205                                     MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
 206                                     MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
 207
 208         /* Return the first error reported. */
 209         return err ? err : err2;
 210 }
 211
 212 static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev)
 213 {
 214         u32 orig;
 215         int val;
 216         bool clk125en = true;
 217
 218         /* Abort if we are using an untested phy. */
 219         if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 &&
 220             BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 &&
 221             BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M)
 222                 return;
 223
 224         val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_SCR3);
 225         if (val < 0)
 226                 return;
 227
 228         orig = val;
 229
 230         if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
 231              BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
 232             BRCM_PHY_REV(phydev) >= 0x3) {
 233                 /*
 234                  * Here, bit 0 _disables_ CLK125 when set.
 235                  * This bit is set by default.
 236                  */
 237                 clk125en = false;
 238         } else {
 239                 if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {
 240                         /* Here, bit 0 _enables_ CLK125 when set */
 241                         val &= ~BCM54XX_SHD_SCR3_DEF_CLK125;
 242                         clk125en = false;
 243                 }
 244         }
 245
 246         if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
 247                 val &= ~BCM54XX_SHD_SCR3_DLLAPD_DIS;
 248         else
 249                 val |= BCM54XX_SHD_SCR3_DLLAPD_DIS;
 250
 251         if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY)
 252                 val |= BCM54XX_SHD_SCR3_TRDDAPD;
 253
 254         if (orig != val)
 255                 bcm_phy_write_shadow(phydev, BCM54XX_SHD_SCR3, val);
 256
 257         val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_APD);
 258         if (val < 0)
 259                 return;
 260
 261         orig = val;
 262
 263         if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
 264                 val |= BCM54XX_SHD_APD_EN;
 265         else
 266                 val &= ~BCM54XX_SHD_APD_EN;
 267
 268         if (orig != val)
 269                 bcm_phy_write_shadow(phydev, BCM54XX_SHD_APD, val);
 270 }
 271
 272 static int bcm54xx_config_init(struct phy_device *phydev)
 273 {
 274         int reg, err, val;
 275
 276         reg = phy_read(phydev, MII_BCM54XX_ECR);
 277         if (reg < 0)
 278                 return reg;
 279
 280         /* Mask interrupts globally.  */
 281         reg |= MII_BCM54XX_ECR_IM;
 282         err = phy_write(phydev, MII_BCM54XX_ECR, reg);
 283         if (err < 0)
 284                 return err;
 285
 286         /* Unmask events we are interested in.  */
 287         reg = ~(MII_BCM54XX_INT_DUPLEX |
 288                 MII_BCM54XX_INT_SPEED |
 289                 MII_BCM54XX_INT_LINK);
 290         err = phy_write(phydev, MII_BCM54XX_IMR, reg);
 291         if (err < 0)
 292                 return err;
 293
 294         if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
 295              BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
 296             (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))
 297                 bcm_phy_write_shadow(phydev, BCM54XX_SHD_RGMII_MODE, 0);
 298
 299         if ((phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) ||
 300             (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) ||
 301             (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
 302                 bcm54xx_adjust_rxrefclk(phydev);
 303
 304         if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E) {
 305                 err = bcm54210e_config_init(phydev);
 306                 if (err)
 307                         return err;
 308         } else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54612E) {
 309                 err = bcm54612e_config_init(phydev);
 310                 if (err)
 311                         return err;
 312         } else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
 313                 /* For BCM54810, we need to disable BroadR-Reach function */
 314                 val = bcm_phy_read_exp(phydev,
 315                                        BCM54810_EXP_BROADREACH_LRE_MISC_CTL);
 316                 val &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN;
 317                 err = bcm_phy_write_exp(phydev,
 318                                         BCM54810_EXP_BROADREACH_LRE_MISC_CTL,
 319                                         val);
 320                 if (err < 0)
 321                         return err;
 322         }
 323
 324         bcm54xx_phydsp_config(phydev);
 325
 326         /* Encode link speed into LED1 and LED3 pair (green/amber).
 327          * Also flash these two LEDs on activity. This means configuring
 328          * them for MULTICOLOR and encoding link/activity into them.
 329          */
 330         val = BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_MULTICOLOR1) |
 331                 BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_MULTICOLOR1);
 332         bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val);
 333
 334         val = BCM_LED_MULTICOLOR_IN_PHASE |
 335                 BCM5482_SHD_LEDS1_LED1(BCM_LED_MULTICOLOR_LINK_ACT) |
 336                 BCM5482_SHD_LEDS1_LED3(BCM_LED_MULTICOLOR_LINK_ACT);
 337         bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val);
 338
 339         return 0;
 340 }
 341
 342 static int bcm5482_config_init(struct phy_device *phydev)
 343 {
 344         int err, reg;
 345
 346         err = bcm54xx_config_init(phydev);
 347
 348         if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
 349                 /*
 350                  * Enable secondary SerDes and its use as an LED source
 351                  */
 352                 reg = bcm_phy_read_shadow(phydev, BCM5482_SHD_SSD);
 353                 bcm_phy_write_shadow(phydev, BCM5482_SHD_SSD,
 354                                      reg |
 355                                      BCM5482_SHD_SSD_LEDM |
 356                                      BCM5482_SHD_SSD_EN);
 357
 358                 /*
 359                  * Enable SGMII slave mode and auto-detection
 360                  */
 361                 reg = BCM5482_SSD_SGMII_SLAVE | MII_BCM54XX_EXP_SEL_SSD;
 362                 err = bcm_phy_read_exp(phydev, reg);
 363                 if (err < 0)
 364                         return err;
 365                 err = bcm_phy_write_exp(phydev, reg, err |
 366                                         BCM5482_SSD_SGMII_SLAVE_EN |
 367                                         BCM5482_SSD_SGMII_SLAVE_AD);
 368                 if (err < 0)
 369                         return err;
 370
 371                 /*
 372                  * Disable secondary SerDes powerdown
 373                  */
 374                 reg = BCM5482_SSD_1000BX_CTL | MII_BCM54XX_EXP_SEL_SSD;
 375                 err = bcm_phy_read_exp(phydev, reg);
 376                 if (err < 0)
 377                         return err;
 378                 err = bcm_phy_write_exp(phydev, reg,
 379                                         err & ~BCM5482_SSD_1000BX_CTL_PWRDOWN);
 380                 if (err < 0)
 381                         return err;
 382
 383                 /*
 384                  * Select 1000BASE-X register set (primary SerDes)
 385                  */
 386                 reg = bcm_phy_read_shadow(phydev, BCM5482_SHD_MODE);
 387                 bcm_phy_write_shadow(phydev, BCM5482_SHD_MODE,
 388                                      reg | BCM5482_SHD_MODE_1000BX);
 389
 390                 /*
 391                  * LED1=ACTIVITYLED, LED3=LINKSPD[2]
 392                  * (Use LED1 as secondary SerDes ACTIVITY LED)
 393                  */
 394                 bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1,
 395                         BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) |
 396                         BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2));
 397
 398                 /*
 399                  * Auto-negotiation doesn't seem to work quite right
 400                  * in this mode, so we disable it and force it to the
 401                  * right speed/duplex setting.  Only 'link status'
 402                  * is important.
 403                  */
 404                 phydev->autoneg = AUTONEG_DISABLE;
 405                 phydev->speed = SPEED_1000;
 406                 phydev->duplex = DUPLEX_FULL;
 407         }
 408
 409         return err;
 410 }
 411
 412 static int bcm5482_read_status(struct phy_device *phydev)
 413 {
 414         int err;
 415
 416         err = genphy_read_status(phydev);
 417
 418         if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
 419                 /*
 420                  * Only link status matters for 1000Base-X mode, so force
 421                  * 1000 Mbit/s full-duplex status
 422                  */
 423                 if (phydev->link) {
 424                         phydev->speed = SPEED_1000;
 425                         phydev->duplex = DUPLEX_FULL;
 426                 }
 427         }
 428
 429         return err;
 430 }
 431
 432 static int bcm5481_config_aneg(struct phy_device *phydev)
 433 {
 434         struct device_node *np = phydev->mdio.dev.of_node;
 435         int ret;
 436
 437         /* Aneg firsly. */
 438         ret = genphy_config_aneg(phydev);
 439
 440         /* Then we can set up the delay. */
 441         bcm54xx_config_clock_delay(phydev);
 442
 443         if (of_property_read_bool(np, "enet-phy-lane-swap")) {
 444                 /* Lane Swap - Undocumented register...magic! */
 445                 ret = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_SEL_ER + 0x9,
 446                                         0x11B);
 447                 if (ret < 0)
 448                         return ret;
 449         }
 450
 451         return ret;
 452 }
 453
 454 static int bcm54616s_config_aneg(struct phy_device *phydev)
 455 {
 456         int ret;
 457
 458         /* Aneg firsly. */
 459         ret = genphy_config_aneg(phydev);
 460
 461         /* Then we can set up the delay. */
 462         bcm54xx_config_clock_delay(phydev);
 463
 464         return ret;
 465 }
 466
 467 static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
 468 {
 469         int val;
 470
 471         val = phy_read(phydev, reg);
 472         if (val < 0)
 473                 return val;
 474
 475         return phy_write(phydev, reg, val | set);
 476 }
 477
 478 static int brcm_fet_config_init(struct phy_device *phydev)
 479 {
 480         int reg, err, err2, brcmtest;
 481
 482         /* Reset the PHY to bring it to a known state. */
 483         err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 484         if (err < 0)
 485                 return err;
 486
 487         reg = phy_read(phydev, MII_BRCM_FET_INTREG);
 488         if (reg < 0)
 489                 return reg;
 490
 491         /* Unmask events we are interested in and mask interrupts globally. */
 492         reg = MII_BRCM_FET_IR_DUPLEX_EN |
 493               MII_BRCM_FET_IR_SPEED_EN |
 494               MII_BRCM_FET_IR_LINK_EN |
 495               MII_BRCM_FET_IR_ENABLE |
 496               MII_BRCM_FET_IR_MASK;
 497
 498         err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
 499         if (err < 0)
 500                 return err;
 501
 502         /* Enable shadow register access */
 503         brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
 504         if (brcmtest < 0)
 505                 return brcmtest;
 506
 507         reg = brcmtest | MII_BRCM_FET_BT_SRE;
 508
 509         err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
 510         if (err < 0)
 511                 return err;
 512
 513         /* Set the LED mode */
 514         reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
 515         if (reg < 0) {
 516                 err = reg;
 517                 goto done;
 518         }
 519
 520         reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK;
 521         reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1;
 522
 523         err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg);
 524         if (err < 0)
 525                 goto done;
 526
 527         /* Enable auto MDIX */
 528         err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL,
 529                                        MII_BRCM_FET_SHDW_MC_FAME);
 530         if (err < 0)
 531                 goto done;
 532
 533         if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {
 534                 /* Enable auto power down */
 535                 err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2,
 536                                                MII_BRCM_FET_SHDW_AS2_APDE);
 537         }
 538
 539 done:
 540         /* Disable shadow register access */
 541         err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
 542         if (!err)
 543                 err = err2;
 544
 545         return err;
 546 }
 547
 548 static int brcm_fet_ack_interrupt(struct phy_device *phydev)
 549 {
 550         int reg;
 551
 552         /* Clear pending interrupts.  */
 553         reg = phy_read(phydev, MII_BRCM_FET_INTREG);
 554         if (reg < 0)
 555                 return reg;
 556
 557         return 0;
 558 }
 559
 560 static int brcm_fet_config_intr(struct phy_device *phydev)
 561 {
 562         int reg, err;
 563
 564         reg = phy_read(phydev, MII_BRCM_FET_INTREG);
 565         if (reg < 0)
 566                 return reg;
 567
 568         if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 569                 reg &= ~MII_BRCM_FET_IR_MASK;
 570         else
 571                 reg |= MII_BRCM_FET_IR_MASK;
 572
 573         err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
 574         return err;
 575 }
 576
 577 struct bcm53xx_phy_priv {
 578         u64     *stats;
 579 };
 580
 581 static int bcm53xx_phy_probe(struct phy_device *phydev)
 582 {
 583         struct bcm53xx_phy_priv *priv;
 584
 585         priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
 586         if (!priv)
 587                 return -ENOMEM;
 588
 589         phydev->priv = priv;
 590
 591         priv->stats = devm_kcalloc(&phydev->mdio.dev,
 592                                    bcm_phy_get_sset_count(phydev), sizeof(u64),
 593                                    GFP_KERNEL);
 594         if (!priv->stats)
 595                 return -ENOMEM;
 596
 597         return 0;
 598 }
 599
 600 static void bcm53xx_phy_get_stats(struct phy_device *phydev,
 601                                   struct ethtool_stats *stats, u64 *data)
 602 {
 603         struct bcm53xx_phy_priv *priv = phydev->priv;
 604
 605         bcm_phy_get_stats(phydev, priv->stats, stats, data);
 606 }
 607
 608 static struct phy_driver broadcom_drivers[] = {
 609 {
 610         .phy_id         = PHY_ID_BCM5411,
 611         .phy_id_mask    = 0xfffffff0,
 612         .name           = "Broadcom BCM5411",
 613         .features       = PHY_GBIT_FEATURES,
 614         .config_init    = bcm54xx_config_init,
 615         .ack_interrupt  = bcm_phy_ack_intr,
 616         .config_intr    = bcm_phy_config_intr,
 617 }, {
 618         .phy_id         = PHY_ID_BCM5421,
 619         .phy_id_mask    = 0xfffffff0,
 620         .name           = "Broadcom BCM5421",
 621         .features       = PHY_GBIT_FEATURES,
 622         .config_init    = bcm54xx_config_init,
 623         .ack_interrupt  = bcm_phy_ack_intr,
 624         .config_intr    = bcm_phy_config_intr,
 625 }, {
 626         .phy_id         = PHY_ID_BCM54210E,
 627         .phy_id_mask    = 0xfffffff0,
 628         .name           = "Broadcom BCM54210E",
 629         .features       = PHY_GBIT_FEATURES,
 630         .config_init    = bcm54xx_config_init,
 631         .ack_interrupt  = bcm_phy_ack_intr,
 632         .config_intr    = bcm_phy_config_intr,
 633 }, {
 634         .phy_id         = PHY_ID_BCM5461,
 635         .phy_id_mask    = 0xfffffff0,
 636         .name           = "Broadcom BCM5461",
 637         .features       = PHY_GBIT_FEATURES,
 638         .config_init    = bcm54xx_config_init,
 639         .ack_interrupt  = bcm_phy_ack_intr,
 640         .config_intr    = bcm_phy_config_intr,
 641 }, {
 642         .phy_id         = PHY_ID_BCM54612E,
 643         .phy_id_mask    = 0xfffffff0,
 644         .name           = "Broadcom BCM54612E",
 645         .features       = PHY_GBIT_FEATURES,
 646         .config_init    = bcm54xx_config_init,
 647         .ack_interrupt  = bcm_phy_ack_intr,
 648         .config_intr    = bcm_phy_config_intr,
 649 }, {
 650         .phy_id         = PHY_ID_BCM54616S,
 651         .phy_id_mask    = 0xfffffff0,
 652         .name           = "Broadcom BCM54616S",
 653         .features       = PHY_GBIT_FEATURES,
 654         .config_init    = bcm54xx_config_init,
 655         .config_aneg    = bcm54616s_config_aneg,
 656         .ack_interrupt  = bcm_phy_ack_intr,
 657         .config_intr    = bcm_phy_config_intr,
 658 }, {
 659         .phy_id         = PHY_ID_BCM5464,
 660         .phy_id_mask    = 0xfffffff0,
 661         .name           = "Broadcom BCM5464",
 662         .features       = PHY_GBIT_FEATURES,
 663         .config_init    = bcm54xx_config_init,
 664         .ack_interrupt  = bcm_phy_ack_intr,
 665         .config_intr    = bcm_phy_config_intr,
 666 }, {
 667         .phy_id         = PHY_ID_BCM5481,
 668         .phy_id_mask    = 0xfffffff0,
 669         .name           = "Broadcom BCM5481",
 670         .features       = PHY_GBIT_FEATURES,
 671         .config_init    = bcm54xx_config_init,
 672         .config_aneg    = bcm5481_config_aneg,
 673         .ack_interrupt  = bcm_phy_ack_intr,
 674         .config_intr    = bcm_phy_config_intr,
 675 }, {
 676         .phy_id         = PHY_ID_BCM54810,
 677         .phy_id_mask    = 0xfffffff0,
 678         .name           = "Broadcom BCM54810",
 679         .features       = PHY_GBIT_FEATURES,
 680         .config_init    = bcm54xx_config_init,
 681         .config_aneg    = bcm5481_config_aneg,
 682         .ack_interrupt  = bcm_phy_ack_intr,
 683         .config_intr    = bcm_phy_config_intr,
 684 }, {
 685         .phy_id         = PHY_ID_BCM5482,
 686         .phy_id_mask    = 0xfffffff0,
 687         .name           = "Broadcom BCM5482",
 688         .features       = PHY_GBIT_FEATURES,
 689         .config_init    = bcm5482_config_init,
 690         .read_status    = bcm5482_read_status,
 691         .ack_interrupt  = bcm_phy_ack_intr,
 692         .config_intr    = bcm_phy_config_intr,
 693 }, {
 694         .phy_id         = PHY_ID_BCM50610,
 695         .phy_id_mask    = 0xfffffff0,
 696         .name           = "Broadcom BCM50610",
 697         .features       = PHY_GBIT_FEATURES,
 698         .config_init    = bcm54xx_config_init,
 699         .ack_interrupt  = bcm_phy_ack_intr,
 700         .config_intr    = bcm_phy_config_intr,
 701 }, {
 702         .phy_id         = PHY_ID_BCM50610M,
 703         .phy_id_mask    = 0xfffffff0,
 704         .name           = "Broadcom BCM50610M",
 705         .features       = PHY_GBIT_FEATURES,
 706         .config_init    = bcm54xx_config_init,
 707         .ack_interrupt  = bcm_phy_ack_intr,
 708         .config_intr    = bcm_phy_config_intr,
 709 }, {
 710         .phy_id         = PHY_ID_BCM57780,
 711         .phy_id_mask    = 0xfffffff0,
 712         .name           = "Broadcom BCM57780",
 713         .features       = PHY_GBIT_FEATURES,
 714         .config_init    = bcm54xx_config_init,
 715         .ack_interrupt  = bcm_phy_ack_intr,
 716         .config_intr    = bcm_phy_config_intr,
 717 }, {
 718         .phy_id         = PHY_ID_BCMAC131,
 719         .phy_id_mask    = 0xfffffff0,
 720         .name           = "Broadcom BCMAC131",
 721         .features       = PHY_BASIC_FEATURES,
 722         .config_init    = brcm_fet_config_init,
 723         .ack_interrupt  = brcm_fet_ack_interrupt,
 724         .config_intr    = brcm_fet_config_intr,
 725 }, {
 726         .phy_id         = PHY_ID_BCM5241,
 727         .phy_id_mask    = 0xfffffff0,
 728         .name           = "Broadcom BCM5241",
 729         .features       = PHY_BASIC_FEATURES,
 730         .config_init    = brcm_fet_config_init,
 731         .ack_interrupt  = brcm_fet_ack_interrupt,
 732         .config_intr    = brcm_fet_config_intr,
 733 }, {
 734         .phy_id         = PHY_ID_BCM5395,
 735         .phy_id_mask    = 0xfffffff0,
 736         .name           = "Broadcom BCM5395",
 737         .flags          = PHY_IS_INTERNAL,
 738         .features       = PHY_GBIT_FEATURES,
 739         .get_sset_count = bcm_phy_get_sset_count,
 740         .get_strings    = bcm_phy_get_strings,
 741         .get_stats      = bcm53xx_phy_get_stats,
 742         .probe          = bcm53xx_phy_probe,
 743 }, {
 744         .phy_id         = PHY_ID_BCM89610,
 745         .phy_id_mask    = 0xfffffff0,
 746         .name           = "Broadcom BCM89610",
 747         .features       = PHY_GBIT_FEATURES,
 748         .config_init    = bcm54xx_config_init,
 749         .ack_interrupt  = bcm_phy_ack_intr,
 750         .config_intr    = bcm_phy_config_intr,
 751 } };
 752
 753 module_phy_driver(broadcom_drivers);
 754
 755 static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
 756         { PHY_ID_BCM5411, 0xfffffff0 },
 757         { PHY_ID_BCM5421, 0xfffffff0 },
 758         { PHY_ID_BCM54210E, 0xfffffff0 },
 759         { PHY_ID_BCM5461, 0xfffffff0 },
 760         { PHY_ID_BCM54612E, 0xfffffff0 },
 761         { PHY_ID_BCM54616S, 0xfffffff0 },
 762         { PHY_ID_BCM5464, 0xfffffff0 },
 763         { PHY_ID_BCM5481, 0xfffffff0 },
 764         { PHY_ID_BCM54810, 0xfffffff0 },
 765         { PHY_ID_BCM5482, 0xfffffff0 },
 766         { PHY_ID_BCM50610, 0xfffffff0 },
 767         { PHY_ID_BCM50610M, 0xfffffff0 },
 768         { PHY_ID_BCM57780, 0xfffffff0 },
 769         { PHY_ID_BCMAC131, 0xfffffff0 },
 770         { PHY_ID_BCM5241, 0xfffffff0 },
 771         { PHY_ID_BCM5395, 0xfffffff0 },
 772         { PHY_ID_BCM89610, 0xfffffff0 },
 773         { }
 774 };
 775
 776 MODULE_DEVICE_TABLE(mdio, broadcom_tbl);