David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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. |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | |
Olivier Deprez | 0e64123 | 2021-09-23 10:07:05 +0200 | [diff] [blame^] | 29 | static int bcm54xx_config_clock_delay(struct phy_device *phydev); |
| 30 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 31 | static int bcm54210e_config_init(struct phy_device *phydev) |
| 32 | { |
| 33 | int val; |
| 34 | |
Olivier Deprez | 0e64123 | 2021-09-23 10:07:05 +0200 | [diff] [blame^] | 35 | bcm54xx_config_clock_delay(phydev); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 36 | |
| 37 | if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) { |
| 38 | val = phy_read(phydev, MII_CTRL1000); |
| 39 | val |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER; |
| 40 | phy_write(phydev, MII_CTRL1000, val); |
| 41 | } |
| 42 | |
| 43 | return 0; |
| 44 | } |
| 45 | |
| 46 | static int bcm54612e_config_init(struct phy_device *phydev) |
| 47 | { |
| 48 | int reg; |
| 49 | |
| 50 | /* Clear TX internal delay unless requested. */ |
| 51 | if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) && |
| 52 | (phydev->interface != PHY_INTERFACE_MODE_RGMII_TXID)) { |
| 53 | /* Disable TXD to GTXCLK clock delay (default set) */ |
| 54 | /* Bit 9 is the only field in shadow register 00011 */ |
| 55 | bcm_phy_write_shadow(phydev, 0x03, 0); |
| 56 | } |
| 57 | |
| 58 | /* Clear RX internal delay unless requested. */ |
| 59 | if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) && |
| 60 | (phydev->interface != PHY_INTERFACE_MODE_RGMII_RXID)) { |
| 61 | reg = bcm54xx_auxctl_read(phydev, |
| 62 | MII_BCM54XX_AUXCTL_SHDWSEL_MISC); |
| 63 | /* Disable RXD to RXC delay (default set) */ |
| 64 | reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN; |
| 65 | /* Clear shadow selector field */ |
| 66 | reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MASK; |
| 67 | bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC, |
| 68 | MII_BCM54XX_AUXCTL_MISC_WREN | reg); |
| 69 | } |
| 70 | |
| 71 | /* Enable CLK125 MUX on LED4 if ref clock is enabled. */ |
| 72 | if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) { |
| 73 | int err; |
| 74 | |
| 75 | reg = bcm_phy_read_exp(phydev, BCM54612E_EXP_SPARE0); |
| 76 | err = bcm_phy_write_exp(phydev, BCM54612E_EXP_SPARE0, |
| 77 | BCM54612E_LED4_CLK125OUT_EN | reg); |
| 78 | |
| 79 | if (err < 0) |
| 80 | return err; |
| 81 | } |
| 82 | |
| 83 | return 0; |
| 84 | } |
| 85 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 86 | static int bcm54xx_config_clock_delay(struct phy_device *phydev) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 87 | { |
| 88 | int rc, val; |
| 89 | |
| 90 | /* handling PHY's internal RX clock delay */ |
| 91 | val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC); |
| 92 | val |= MII_BCM54XX_AUXCTL_MISC_WREN; |
| 93 | if (phydev->interface == PHY_INTERFACE_MODE_RGMII || |
| 94 | phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) { |
| 95 | /* Disable RGMII RXC-RXD skew */ |
| 96 | val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN; |
| 97 | } |
| 98 | if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || |
| 99 | phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) { |
| 100 | /* Enable RGMII RXC-RXD skew */ |
| 101 | val |= MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN; |
| 102 | } |
| 103 | rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC, |
| 104 | val); |
| 105 | if (rc < 0) |
| 106 | return rc; |
| 107 | |
| 108 | /* handling PHY's internal TX clock delay */ |
| 109 | val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL); |
| 110 | if (phydev->interface == PHY_INTERFACE_MODE_RGMII || |
| 111 | phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) { |
| 112 | /* Disable internal TX clock delay */ |
| 113 | val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN; |
| 114 | } |
| 115 | if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || |
| 116 | phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) { |
| 117 | /* Enable internal TX clock delay */ |
| 118 | val |= BCM54810_SHD_CLK_CTL_GTXCLK_EN; |
| 119 | } |
| 120 | rc = bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val); |
| 121 | if (rc < 0) |
| 122 | return rc; |
| 123 | |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | /* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */ |
| 128 | static int bcm50610_a0_workaround(struct phy_device *phydev) |
| 129 | { |
| 130 | int err; |
| 131 | |
| 132 | err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH0, |
| 133 | MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN | |
| 134 | MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF); |
| 135 | if (err < 0) |
| 136 | return err; |
| 137 | |
| 138 | err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH3, |
| 139 | MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ); |
| 140 | if (err < 0) |
| 141 | return err; |
| 142 | |
| 143 | err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75, |
| 144 | MII_BCM54XX_EXP_EXP75_VDACCTRL); |
| 145 | if (err < 0) |
| 146 | return err; |
| 147 | |
| 148 | err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP96, |
| 149 | MII_BCM54XX_EXP_EXP96_MYST); |
| 150 | if (err < 0) |
| 151 | return err; |
| 152 | |
| 153 | err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP97, |
| 154 | MII_BCM54XX_EXP_EXP97_MYST); |
| 155 | |
| 156 | return err; |
| 157 | } |
| 158 | |
| 159 | static int bcm54xx_phydsp_config(struct phy_device *phydev) |
| 160 | { |
| 161 | int err, err2; |
| 162 | |
| 163 | /* Enable the SMDSP clock */ |
| 164 | err = bcm54xx_auxctl_write(phydev, |
| 165 | MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL, |
| 166 | MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA | |
| 167 | MII_BCM54XX_AUXCTL_ACTL_TX_6DB); |
| 168 | if (err < 0) |
| 169 | return err; |
| 170 | |
| 171 | if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 || |
| 172 | BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) { |
| 173 | /* Clear bit 9 to fix a phy interop issue. */ |
| 174 | err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP08, |
| 175 | MII_BCM54XX_EXP_EXP08_RJCT_2MHZ); |
| 176 | if (err < 0) |
| 177 | goto error; |
| 178 | |
| 179 | if (phydev->drv->phy_id == PHY_ID_BCM50610) { |
| 180 | err = bcm50610_a0_workaround(phydev); |
| 181 | if (err < 0) |
| 182 | goto error; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) { |
| 187 | int val; |
| 188 | |
| 189 | val = bcm_phy_read_exp(phydev, MII_BCM54XX_EXP_EXP75); |
| 190 | if (val < 0) |
| 191 | goto error; |
| 192 | |
| 193 | val |= MII_BCM54XX_EXP_EXP75_CM_OSC; |
| 194 | err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75, val); |
| 195 | } |
| 196 | |
| 197 | error: |
| 198 | /* Disable the SMDSP clock */ |
| 199 | err2 = bcm54xx_auxctl_write(phydev, |
| 200 | MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL, |
| 201 | MII_BCM54XX_AUXCTL_ACTL_TX_6DB); |
| 202 | |
| 203 | /* Return the first error reported. */ |
| 204 | return err ? err : err2; |
| 205 | } |
| 206 | |
| 207 | static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) |
| 208 | { |
| 209 | u32 orig; |
| 210 | int val; |
| 211 | bool clk125en = true; |
| 212 | |
| 213 | /* Abort if we are using an untested phy. */ |
| 214 | if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 && |
| 215 | BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 && |
| 216 | BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M) |
| 217 | return; |
| 218 | |
| 219 | val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_SCR3); |
| 220 | if (val < 0) |
| 221 | return; |
| 222 | |
| 223 | orig = val; |
| 224 | |
| 225 | if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 || |
| 226 | BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) && |
| 227 | BRCM_PHY_REV(phydev) >= 0x3) { |
| 228 | /* |
| 229 | * Here, bit 0 _disables_ CLK125 when set. |
| 230 | * This bit is set by default. |
| 231 | */ |
| 232 | clk125en = false; |
| 233 | } else { |
| 234 | if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) { |
| 235 | /* Here, bit 0 _enables_ CLK125 when set */ |
| 236 | val &= ~BCM54XX_SHD_SCR3_DEF_CLK125; |
| 237 | clk125en = false; |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE)) |
| 242 | val &= ~BCM54XX_SHD_SCR3_DLLAPD_DIS; |
| 243 | else |
| 244 | val |= BCM54XX_SHD_SCR3_DLLAPD_DIS; |
| 245 | |
| 246 | if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) |
| 247 | val |= BCM54XX_SHD_SCR3_TRDDAPD; |
| 248 | |
| 249 | if (orig != val) |
| 250 | bcm_phy_write_shadow(phydev, BCM54XX_SHD_SCR3, val); |
| 251 | |
| 252 | val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_APD); |
| 253 | if (val < 0) |
| 254 | return; |
| 255 | |
| 256 | orig = val; |
| 257 | |
| 258 | if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE)) |
| 259 | val |= BCM54XX_SHD_APD_EN; |
| 260 | else |
| 261 | val &= ~BCM54XX_SHD_APD_EN; |
| 262 | |
| 263 | if (orig != val) |
| 264 | bcm_phy_write_shadow(phydev, BCM54XX_SHD_APD, val); |
| 265 | } |
| 266 | |
| 267 | static int bcm54xx_config_init(struct phy_device *phydev) |
| 268 | { |
| 269 | int reg, err, val; |
| 270 | |
| 271 | reg = phy_read(phydev, MII_BCM54XX_ECR); |
| 272 | if (reg < 0) |
| 273 | return reg; |
| 274 | |
| 275 | /* Mask interrupts globally. */ |
| 276 | reg |= MII_BCM54XX_ECR_IM; |
| 277 | err = phy_write(phydev, MII_BCM54XX_ECR, reg); |
| 278 | if (err < 0) |
| 279 | return err; |
| 280 | |
| 281 | /* Unmask events we are interested in. */ |
| 282 | reg = ~(MII_BCM54XX_INT_DUPLEX | |
| 283 | MII_BCM54XX_INT_SPEED | |
| 284 | MII_BCM54XX_INT_LINK); |
| 285 | err = phy_write(phydev, MII_BCM54XX_IMR, reg); |
| 286 | if (err < 0) |
| 287 | return err; |
| 288 | |
| 289 | if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 || |
| 290 | BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) && |
| 291 | (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE)) |
| 292 | bcm_phy_write_shadow(phydev, BCM54XX_SHD_RGMII_MODE, 0); |
| 293 | |
| 294 | if ((phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) || |
| 295 | (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) || |
| 296 | (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE)) |
| 297 | bcm54xx_adjust_rxrefclk(phydev); |
| 298 | |
| 299 | if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E) { |
| 300 | err = bcm54210e_config_init(phydev); |
| 301 | if (err) |
| 302 | return err; |
| 303 | } else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54612E) { |
| 304 | err = bcm54612e_config_init(phydev); |
| 305 | if (err) |
| 306 | return err; |
| 307 | } else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) { |
| 308 | /* For BCM54810, we need to disable BroadR-Reach function */ |
| 309 | val = bcm_phy_read_exp(phydev, |
| 310 | BCM54810_EXP_BROADREACH_LRE_MISC_CTL); |
| 311 | val &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN; |
| 312 | err = bcm_phy_write_exp(phydev, |
| 313 | BCM54810_EXP_BROADREACH_LRE_MISC_CTL, |
| 314 | val); |
| 315 | if (err < 0) |
| 316 | return err; |
| 317 | } |
| 318 | |
| 319 | bcm54xx_phydsp_config(phydev); |
| 320 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 321 | /* Encode link speed into LED1 and LED3 pair (green/amber). |
| 322 | * Also flash these two LEDs on activity. This means configuring |
| 323 | * them for MULTICOLOR and encoding link/activity into them. |
| 324 | */ |
| 325 | val = BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_MULTICOLOR1) | |
| 326 | BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_MULTICOLOR1); |
| 327 | bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val); |
| 328 | |
| 329 | val = BCM_LED_MULTICOLOR_IN_PHASE | |
| 330 | BCM5482_SHD_LEDS1_LED1(BCM_LED_MULTICOLOR_LINK_ACT) | |
| 331 | BCM5482_SHD_LEDS1_LED3(BCM_LED_MULTICOLOR_LINK_ACT); |
| 332 | bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val); |
| 333 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | static int bcm5482_config_init(struct phy_device *phydev) |
| 338 | { |
| 339 | int err, reg; |
| 340 | |
| 341 | err = bcm54xx_config_init(phydev); |
| 342 | |
| 343 | if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) { |
| 344 | /* |
| 345 | * Enable secondary SerDes and its use as an LED source |
| 346 | */ |
| 347 | reg = bcm_phy_read_shadow(phydev, BCM5482_SHD_SSD); |
| 348 | bcm_phy_write_shadow(phydev, BCM5482_SHD_SSD, |
| 349 | reg | |
| 350 | BCM5482_SHD_SSD_LEDM | |
| 351 | BCM5482_SHD_SSD_EN); |
| 352 | |
| 353 | /* |
| 354 | * Enable SGMII slave mode and auto-detection |
| 355 | */ |
| 356 | reg = BCM5482_SSD_SGMII_SLAVE | MII_BCM54XX_EXP_SEL_SSD; |
| 357 | err = bcm_phy_read_exp(phydev, reg); |
| 358 | if (err < 0) |
| 359 | return err; |
| 360 | err = bcm_phy_write_exp(phydev, reg, err | |
| 361 | BCM5482_SSD_SGMII_SLAVE_EN | |
| 362 | BCM5482_SSD_SGMII_SLAVE_AD); |
| 363 | if (err < 0) |
| 364 | return err; |
| 365 | |
| 366 | /* |
| 367 | * Disable secondary SerDes powerdown |
| 368 | */ |
| 369 | reg = BCM5482_SSD_1000BX_CTL | MII_BCM54XX_EXP_SEL_SSD; |
| 370 | err = bcm_phy_read_exp(phydev, reg); |
| 371 | if (err < 0) |
| 372 | return err; |
| 373 | err = bcm_phy_write_exp(phydev, reg, |
| 374 | err & ~BCM5482_SSD_1000BX_CTL_PWRDOWN); |
| 375 | if (err < 0) |
| 376 | return err; |
| 377 | |
| 378 | /* |
| 379 | * Select 1000BASE-X register set (primary SerDes) |
| 380 | */ |
| 381 | reg = bcm_phy_read_shadow(phydev, BCM5482_SHD_MODE); |
| 382 | bcm_phy_write_shadow(phydev, BCM5482_SHD_MODE, |
| 383 | reg | BCM5482_SHD_MODE_1000BX); |
| 384 | |
| 385 | /* |
| 386 | * LED1=ACTIVITYLED, LED3=LINKSPD[2] |
| 387 | * (Use LED1 as secondary SerDes ACTIVITY LED) |
| 388 | */ |
| 389 | bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, |
| 390 | BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) | |
| 391 | BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2)); |
| 392 | |
| 393 | /* |
| 394 | * Auto-negotiation doesn't seem to work quite right |
| 395 | * in this mode, so we disable it and force it to the |
| 396 | * right speed/duplex setting. Only 'link status' |
| 397 | * is important. |
| 398 | */ |
| 399 | phydev->autoneg = AUTONEG_DISABLE; |
| 400 | phydev->speed = SPEED_1000; |
| 401 | phydev->duplex = DUPLEX_FULL; |
| 402 | } |
| 403 | |
| 404 | return err; |
| 405 | } |
| 406 | |
| 407 | static int bcm5482_read_status(struct phy_device *phydev) |
| 408 | { |
| 409 | int err; |
| 410 | |
| 411 | err = genphy_read_status(phydev); |
| 412 | |
| 413 | if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) { |
| 414 | /* |
| 415 | * Only link status matters for 1000Base-X mode, so force |
| 416 | * 1000 Mbit/s full-duplex status |
| 417 | */ |
| 418 | if (phydev->link) { |
| 419 | phydev->speed = SPEED_1000; |
| 420 | phydev->duplex = DUPLEX_FULL; |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | return err; |
| 425 | } |
| 426 | |
| 427 | static int bcm5481_config_aneg(struct phy_device *phydev) |
| 428 | { |
| 429 | struct device_node *np = phydev->mdio.dev.of_node; |
| 430 | int ret; |
| 431 | |
| 432 | /* Aneg firsly. */ |
| 433 | ret = genphy_config_aneg(phydev); |
| 434 | |
| 435 | /* Then we can set up the delay. */ |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 436 | bcm54xx_config_clock_delay(phydev); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 437 | |
| 438 | if (of_property_read_bool(np, "enet-phy-lane-swap")) { |
| 439 | /* Lane Swap - Undocumented register...magic! */ |
| 440 | ret = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_SEL_ER + 0x9, |
| 441 | 0x11B); |
| 442 | if (ret < 0) |
| 443 | return ret; |
| 444 | } |
| 445 | |
| 446 | return ret; |
| 447 | } |
| 448 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 449 | static int bcm54616s_config_aneg(struct phy_device *phydev) |
| 450 | { |
| 451 | int ret; |
| 452 | |
| 453 | /* Aneg firsly. */ |
| 454 | ret = genphy_config_aneg(phydev); |
| 455 | |
| 456 | /* Then we can set up the delay. */ |
| 457 | bcm54xx_config_clock_delay(phydev); |
| 458 | |
| 459 | return ret; |
| 460 | } |
| 461 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 462 | static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set) |
| 463 | { |
| 464 | int val; |
| 465 | |
| 466 | val = phy_read(phydev, reg); |
| 467 | if (val < 0) |
| 468 | return val; |
| 469 | |
| 470 | return phy_write(phydev, reg, val | set); |
| 471 | } |
| 472 | |
| 473 | static int brcm_fet_config_init(struct phy_device *phydev) |
| 474 | { |
| 475 | int reg, err, err2, brcmtest; |
| 476 | |
| 477 | /* Reset the PHY to bring it to a known state. */ |
| 478 | err = phy_write(phydev, MII_BMCR, BMCR_RESET); |
| 479 | if (err < 0) |
| 480 | return err; |
| 481 | |
| 482 | reg = phy_read(phydev, MII_BRCM_FET_INTREG); |
| 483 | if (reg < 0) |
| 484 | return reg; |
| 485 | |
| 486 | /* Unmask events we are interested in and mask interrupts globally. */ |
| 487 | reg = MII_BRCM_FET_IR_DUPLEX_EN | |
| 488 | MII_BRCM_FET_IR_SPEED_EN | |
| 489 | MII_BRCM_FET_IR_LINK_EN | |
| 490 | MII_BRCM_FET_IR_ENABLE | |
| 491 | MII_BRCM_FET_IR_MASK; |
| 492 | |
| 493 | err = phy_write(phydev, MII_BRCM_FET_INTREG, reg); |
| 494 | if (err < 0) |
| 495 | return err; |
| 496 | |
| 497 | /* Enable shadow register access */ |
| 498 | brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST); |
| 499 | if (brcmtest < 0) |
| 500 | return brcmtest; |
| 501 | |
| 502 | reg = brcmtest | MII_BRCM_FET_BT_SRE; |
| 503 | |
| 504 | err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg); |
| 505 | if (err < 0) |
| 506 | return err; |
| 507 | |
| 508 | /* Set the LED mode */ |
| 509 | reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4); |
| 510 | if (reg < 0) { |
| 511 | err = reg; |
| 512 | goto done; |
| 513 | } |
| 514 | |
| 515 | reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK; |
| 516 | reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1; |
| 517 | |
| 518 | err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg); |
| 519 | if (err < 0) |
| 520 | goto done; |
| 521 | |
| 522 | /* Enable auto MDIX */ |
| 523 | err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL, |
| 524 | MII_BRCM_FET_SHDW_MC_FAME); |
| 525 | if (err < 0) |
| 526 | goto done; |
| 527 | |
| 528 | if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) { |
| 529 | /* Enable auto power down */ |
| 530 | err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2, |
| 531 | MII_BRCM_FET_SHDW_AS2_APDE); |
| 532 | } |
| 533 | |
| 534 | done: |
| 535 | /* Disable shadow register access */ |
| 536 | err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest); |
| 537 | if (!err) |
| 538 | err = err2; |
| 539 | |
| 540 | return err; |
| 541 | } |
| 542 | |
| 543 | static int brcm_fet_ack_interrupt(struct phy_device *phydev) |
| 544 | { |
| 545 | int reg; |
| 546 | |
| 547 | /* Clear pending interrupts. */ |
| 548 | reg = phy_read(phydev, MII_BRCM_FET_INTREG); |
| 549 | if (reg < 0) |
| 550 | return reg; |
| 551 | |
| 552 | return 0; |
| 553 | } |
| 554 | |
| 555 | static int brcm_fet_config_intr(struct phy_device *phydev) |
| 556 | { |
| 557 | int reg, err; |
| 558 | |
| 559 | reg = phy_read(phydev, MII_BRCM_FET_INTREG); |
| 560 | if (reg < 0) |
| 561 | return reg; |
| 562 | |
| 563 | if (phydev->interrupts == PHY_INTERRUPT_ENABLED) |
| 564 | reg &= ~MII_BRCM_FET_IR_MASK; |
| 565 | else |
| 566 | reg |= MII_BRCM_FET_IR_MASK; |
| 567 | |
| 568 | err = phy_write(phydev, MII_BRCM_FET_INTREG, reg); |
| 569 | return err; |
| 570 | } |
| 571 | |
| 572 | struct bcm53xx_phy_priv { |
| 573 | u64 *stats; |
| 574 | }; |
| 575 | |
| 576 | static int bcm53xx_phy_probe(struct phy_device *phydev) |
| 577 | { |
| 578 | struct bcm53xx_phy_priv *priv; |
| 579 | |
| 580 | priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); |
| 581 | if (!priv) |
| 582 | return -ENOMEM; |
| 583 | |
| 584 | phydev->priv = priv; |
| 585 | |
| 586 | priv->stats = devm_kcalloc(&phydev->mdio.dev, |
| 587 | bcm_phy_get_sset_count(phydev), sizeof(u64), |
| 588 | GFP_KERNEL); |
| 589 | if (!priv->stats) |
| 590 | return -ENOMEM; |
| 591 | |
| 592 | return 0; |
| 593 | } |
| 594 | |
| 595 | static void bcm53xx_phy_get_stats(struct phy_device *phydev, |
| 596 | struct ethtool_stats *stats, u64 *data) |
| 597 | { |
| 598 | struct bcm53xx_phy_priv *priv = phydev->priv; |
| 599 | |
| 600 | bcm_phy_get_stats(phydev, priv->stats, stats, data); |
| 601 | } |
| 602 | |
| 603 | static struct phy_driver broadcom_drivers[] = { |
| 604 | { |
| 605 | .phy_id = PHY_ID_BCM5411, |
| 606 | .phy_id_mask = 0xfffffff0, |
| 607 | .name = "Broadcom BCM5411", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 608 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 609 | .config_init = bcm54xx_config_init, |
| 610 | .ack_interrupt = bcm_phy_ack_intr, |
| 611 | .config_intr = bcm_phy_config_intr, |
| 612 | }, { |
| 613 | .phy_id = PHY_ID_BCM5421, |
| 614 | .phy_id_mask = 0xfffffff0, |
| 615 | .name = "Broadcom BCM5421", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 616 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 617 | .config_init = bcm54xx_config_init, |
| 618 | .ack_interrupt = bcm_phy_ack_intr, |
| 619 | .config_intr = bcm_phy_config_intr, |
| 620 | }, { |
| 621 | .phy_id = PHY_ID_BCM54210E, |
| 622 | .phy_id_mask = 0xfffffff0, |
| 623 | .name = "Broadcom BCM54210E", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 624 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 625 | .config_init = bcm54xx_config_init, |
| 626 | .ack_interrupt = bcm_phy_ack_intr, |
| 627 | .config_intr = bcm_phy_config_intr, |
| 628 | }, { |
| 629 | .phy_id = PHY_ID_BCM5461, |
| 630 | .phy_id_mask = 0xfffffff0, |
| 631 | .name = "Broadcom BCM5461", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 632 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 633 | .config_init = bcm54xx_config_init, |
| 634 | .ack_interrupt = bcm_phy_ack_intr, |
| 635 | .config_intr = bcm_phy_config_intr, |
| 636 | }, { |
| 637 | .phy_id = PHY_ID_BCM54612E, |
| 638 | .phy_id_mask = 0xfffffff0, |
| 639 | .name = "Broadcom BCM54612E", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 640 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 641 | .config_init = bcm54xx_config_init, |
| 642 | .ack_interrupt = bcm_phy_ack_intr, |
| 643 | .config_intr = bcm_phy_config_intr, |
| 644 | }, { |
| 645 | .phy_id = PHY_ID_BCM54616S, |
| 646 | .phy_id_mask = 0xfffffff0, |
| 647 | .name = "Broadcom BCM54616S", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 648 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 649 | .config_init = bcm54xx_config_init, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 650 | .config_aneg = bcm54616s_config_aneg, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 651 | .ack_interrupt = bcm_phy_ack_intr, |
| 652 | .config_intr = bcm_phy_config_intr, |
| 653 | }, { |
| 654 | .phy_id = PHY_ID_BCM5464, |
| 655 | .phy_id_mask = 0xfffffff0, |
| 656 | .name = "Broadcom BCM5464", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 657 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 658 | .config_init = bcm54xx_config_init, |
| 659 | .ack_interrupt = bcm_phy_ack_intr, |
| 660 | .config_intr = bcm_phy_config_intr, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 661 | .suspend = genphy_suspend, |
| 662 | .resume = genphy_resume, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 663 | }, { |
| 664 | .phy_id = PHY_ID_BCM5481, |
| 665 | .phy_id_mask = 0xfffffff0, |
| 666 | .name = "Broadcom BCM5481", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 667 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 668 | .config_init = bcm54xx_config_init, |
| 669 | .config_aneg = bcm5481_config_aneg, |
| 670 | .ack_interrupt = bcm_phy_ack_intr, |
| 671 | .config_intr = bcm_phy_config_intr, |
| 672 | }, { |
| 673 | .phy_id = PHY_ID_BCM54810, |
| 674 | .phy_id_mask = 0xfffffff0, |
| 675 | .name = "Broadcom BCM54810", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 676 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 677 | .config_init = bcm54xx_config_init, |
| 678 | .config_aneg = bcm5481_config_aneg, |
| 679 | .ack_interrupt = bcm_phy_ack_intr, |
| 680 | .config_intr = bcm_phy_config_intr, |
| 681 | }, { |
| 682 | .phy_id = PHY_ID_BCM5482, |
| 683 | .phy_id_mask = 0xfffffff0, |
| 684 | .name = "Broadcom BCM5482", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 685 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 686 | .config_init = bcm5482_config_init, |
| 687 | .read_status = bcm5482_read_status, |
| 688 | .ack_interrupt = bcm_phy_ack_intr, |
| 689 | .config_intr = bcm_phy_config_intr, |
| 690 | }, { |
| 691 | .phy_id = PHY_ID_BCM50610, |
| 692 | .phy_id_mask = 0xfffffff0, |
| 693 | .name = "Broadcom BCM50610", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 694 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 695 | .config_init = bcm54xx_config_init, |
| 696 | .ack_interrupt = bcm_phy_ack_intr, |
| 697 | .config_intr = bcm_phy_config_intr, |
| 698 | }, { |
| 699 | .phy_id = PHY_ID_BCM50610M, |
| 700 | .phy_id_mask = 0xfffffff0, |
| 701 | .name = "Broadcom BCM50610M", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 702 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 703 | .config_init = bcm54xx_config_init, |
| 704 | .ack_interrupt = bcm_phy_ack_intr, |
| 705 | .config_intr = bcm_phy_config_intr, |
| 706 | }, { |
| 707 | .phy_id = PHY_ID_BCM57780, |
| 708 | .phy_id_mask = 0xfffffff0, |
| 709 | .name = "Broadcom BCM57780", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 710 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 711 | .config_init = bcm54xx_config_init, |
| 712 | .ack_interrupt = bcm_phy_ack_intr, |
| 713 | .config_intr = bcm_phy_config_intr, |
| 714 | }, { |
| 715 | .phy_id = PHY_ID_BCMAC131, |
| 716 | .phy_id_mask = 0xfffffff0, |
| 717 | .name = "Broadcom BCMAC131", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 718 | /* PHY_BASIC_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 719 | .config_init = brcm_fet_config_init, |
| 720 | .ack_interrupt = brcm_fet_ack_interrupt, |
| 721 | .config_intr = brcm_fet_config_intr, |
| 722 | }, { |
| 723 | .phy_id = PHY_ID_BCM5241, |
| 724 | .phy_id_mask = 0xfffffff0, |
| 725 | .name = "Broadcom BCM5241", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 726 | /* PHY_BASIC_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 727 | .config_init = brcm_fet_config_init, |
| 728 | .ack_interrupt = brcm_fet_ack_interrupt, |
| 729 | .config_intr = brcm_fet_config_intr, |
| 730 | }, { |
| 731 | .phy_id = PHY_ID_BCM5395, |
| 732 | .phy_id_mask = 0xfffffff0, |
| 733 | .name = "Broadcom BCM5395", |
| 734 | .flags = PHY_IS_INTERNAL, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 735 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 736 | .get_sset_count = bcm_phy_get_sset_count, |
| 737 | .get_strings = bcm_phy_get_strings, |
| 738 | .get_stats = bcm53xx_phy_get_stats, |
| 739 | .probe = bcm53xx_phy_probe, |
| 740 | }, { |
| 741 | .phy_id = PHY_ID_BCM89610, |
| 742 | .phy_id_mask = 0xfffffff0, |
| 743 | .name = "Broadcom BCM89610", |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 744 | /* PHY_GBIT_FEATURES */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 745 | .config_init = bcm54xx_config_init, |
| 746 | .ack_interrupt = bcm_phy_ack_intr, |
| 747 | .config_intr = bcm_phy_config_intr, |
| 748 | } }; |
| 749 | |
| 750 | module_phy_driver(broadcom_drivers); |
| 751 | |
| 752 | static struct mdio_device_id __maybe_unused broadcom_tbl[] = { |
| 753 | { PHY_ID_BCM5411, 0xfffffff0 }, |
| 754 | { PHY_ID_BCM5421, 0xfffffff0 }, |
| 755 | { PHY_ID_BCM54210E, 0xfffffff0 }, |
| 756 | { PHY_ID_BCM5461, 0xfffffff0 }, |
| 757 | { PHY_ID_BCM54612E, 0xfffffff0 }, |
| 758 | { PHY_ID_BCM54616S, 0xfffffff0 }, |
| 759 | { PHY_ID_BCM5464, 0xfffffff0 }, |
| 760 | { PHY_ID_BCM5481, 0xfffffff0 }, |
| 761 | { PHY_ID_BCM54810, 0xfffffff0 }, |
| 762 | { PHY_ID_BCM5482, 0xfffffff0 }, |
| 763 | { PHY_ID_BCM50610, 0xfffffff0 }, |
| 764 | { PHY_ID_BCM50610M, 0xfffffff0 }, |
| 765 | { PHY_ID_BCM57780, 0xfffffff0 }, |
| 766 | { PHY_ID_BCMAC131, 0xfffffff0 }, |
| 767 | { PHY_ID_BCM5241, 0xfffffff0 }, |
| 768 | { PHY_ID_BCM5395, 0xfffffff0 }, |
| 769 | { PHY_ID_BCM89610, 0xfffffff0 }, |
| 770 | { } |
| 771 | }; |
| 772 | |
| 773 | MODULE_DEVICE_TABLE(mdio, broadcom_tbl); |