Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 2 | /* |
| 3 | * Generic PHY Management code |
| 4 | * |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 5 | * Copyright 2011 Freescale Semiconductor, Inc. |
| 6 | * author Andy Fleming |
| 7 | * |
| 8 | * Based loosely off of Linux's PHY Lib |
| 9 | */ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 10 | #include <common.h> |
Simon Glass | a73bda4 | 2015-11-08 23:47:45 -0700 | [diff] [blame] | 11 | #include <console.h> |
Simon Glass | dbad346 | 2015-04-05 16:07:39 -0600 | [diff] [blame] | 12 | #include <dm.h> |
Simon Glass | 0f2af88 | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 13 | #include <log.h> |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 14 | #include <malloc.h> |
| 15 | #include <net.h> |
| 16 | #include <command.h> |
| 17 | #include <miiphy.h> |
| 18 | #include <phy.h> |
| 19 | #include <errno.h> |
Simon Glass | 3ba929a | 2020-10-30 21:38:53 -0600 | [diff] [blame] | 20 | #include <asm/global_data.h> |
Bin Meng | b34ef72 | 2021-03-14 20:14:52 +0800 | [diff] [blame] | 21 | #include <dm/of_extra.h> |
Simon Glass | 4dcacfc | 2020-05-10 11:40:13 -0600 | [diff] [blame] | 22 | #include <linux/bitops.h> |
Simon Glass | dbd7954 | 2020-05-10 11:40:11 -0600 | [diff] [blame] | 23 | #include <linux/delay.h> |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 24 | #include <linux/err.h> |
Shengzhou Liu | fcfc786 | 2014-04-11 16:14:17 +0800 | [diff] [blame] | 25 | #include <linux/compiler.h> |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 26 | |
Michal Simek | 5f67631 | 2015-05-13 13:40:40 +0200 | [diff] [blame] | 27 | DECLARE_GLOBAL_DATA_PTR; |
| 28 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 29 | /* Generic PHY support and helper functions */ |
| 30 | |
| 31 | /** |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 32 | * genphy_config_advert - sanitize and advertise auto-negotiation parameters |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 33 | * @phydev: target phy_device struct |
| 34 | * |
| 35 | * Description: Writes MII_ADVERTISE with the appropriate values, |
| 36 | * after sanitizing the values to make sure we only advertise |
| 37 | * what is supported. Returns < 0 on error, 0 if the PHY's advertisement |
| 38 | * hasn't changed, and > 0 if it has changed. |
| 39 | */ |
Kim Phillips | 914b078 | 2012-10-29 13:34:34 +0000 | [diff] [blame] | 40 | static int genphy_config_advert(struct phy_device *phydev) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 41 | { |
| 42 | u32 advertise; |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 43 | int oldadv, adv, bmsr; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 44 | int err, changed = 0; |
| 45 | |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 46 | /* Only allow advertising what this PHY supports */ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 47 | phydev->advertising &= phydev->supported; |
| 48 | advertise = phydev->advertising; |
| 49 | |
| 50 | /* Setup standard advertisement */ |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 51 | adv = phy_read(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE); |
| 52 | oldadv = adv; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 53 | |
| 54 | if (adv < 0) |
| 55 | return adv; |
| 56 | |
| 57 | adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | |
| 58 | ADVERTISE_PAUSE_ASYM); |
| 59 | if (advertise & ADVERTISED_10baseT_Half) |
| 60 | adv |= ADVERTISE_10HALF; |
| 61 | if (advertise & ADVERTISED_10baseT_Full) |
| 62 | adv |= ADVERTISE_10FULL; |
| 63 | if (advertise & ADVERTISED_100baseT_Half) |
| 64 | adv |= ADVERTISE_100HALF; |
| 65 | if (advertise & ADVERTISED_100baseT_Full) |
| 66 | adv |= ADVERTISE_100FULL; |
| 67 | if (advertise & ADVERTISED_Pause) |
| 68 | adv |= ADVERTISE_PAUSE_CAP; |
| 69 | if (advertise & ADVERTISED_Asym_Pause) |
| 70 | adv |= ADVERTISE_PAUSE_ASYM; |
Charles Coldwell | 2332941 | 2013-02-21 08:25:52 -0500 | [diff] [blame] | 71 | if (advertise & ADVERTISED_1000baseX_Half) |
| 72 | adv |= ADVERTISE_1000XHALF; |
| 73 | if (advertise & ADVERTISED_1000baseX_Full) |
| 74 | adv |= ADVERTISE_1000XFULL; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 75 | |
| 76 | if (adv != oldadv) { |
| 77 | err = phy_write(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE, adv); |
| 78 | |
| 79 | if (err < 0) |
| 80 | return err; |
| 81 | changed = 1; |
| 82 | } |
| 83 | |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 84 | bmsr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR); |
| 85 | if (bmsr < 0) |
| 86 | return bmsr; |
| 87 | |
| 88 | /* Per 802.3-2008, Section 22.2.4.2.16 Extended status all |
| 89 | * 1000Mbits/sec capable PHYs shall have the BMSR_ESTATEN bit set to a |
| 90 | * logical 1. |
| 91 | */ |
| 92 | if (!(bmsr & BMSR_ESTATEN)) |
| 93 | return changed; |
| 94 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 95 | /* Configure gigabit if it's supported */ |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 96 | adv = phy_read(phydev, MDIO_DEVAD_NONE, MII_CTRL1000); |
| 97 | oldadv = adv; |
| 98 | |
| 99 | if (adv < 0) |
| 100 | return adv; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 101 | |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 102 | adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 103 | |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 104 | if (phydev->supported & (SUPPORTED_1000baseT_Half | |
| 105 | SUPPORTED_1000baseT_Full)) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 106 | if (advertise & SUPPORTED_1000baseT_Half) |
| 107 | adv |= ADVERTISE_1000HALF; |
| 108 | if (advertise & SUPPORTED_1000baseT_Full) |
| 109 | adv |= ADVERTISE_1000FULL; |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 110 | } |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 111 | |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 112 | if (adv != oldadv) |
| 113 | changed = 1; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 114 | |
Florian Fainelli | 6c8be84 | 2016-01-13 16:59:31 +0300 | [diff] [blame] | 115 | err = phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, adv); |
| 116 | if (err < 0) |
| 117 | return err; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 118 | |
| 119 | return changed; |
| 120 | } |
| 121 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 122 | /** |
| 123 | * genphy_setup_forced - configures/forces speed/duplex from @phydev |
| 124 | * @phydev: target phy_device struct |
| 125 | * |
| 126 | * Description: Configures MII_BMCR to force speed/duplex |
| 127 | * to the values in phydev. Assumes that the values are valid. |
| 128 | */ |
Kim Phillips | 914b078 | 2012-10-29 13:34:34 +0000 | [diff] [blame] | 129 | static int genphy_setup_forced(struct phy_device *phydev) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 130 | { |
| 131 | int err; |
Alexandre Messier | 103a8c4 | 2016-01-22 14:16:15 -0500 | [diff] [blame] | 132 | int ctl = BMCR_ANRESTART; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 133 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 134 | phydev->pause = 0; |
| 135 | phydev->asym_pause = 0; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 136 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 137 | if (phydev->speed == SPEED_1000) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 138 | ctl |= BMCR_SPEED1000; |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 139 | else if (phydev->speed == SPEED_100) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 140 | ctl |= BMCR_SPEED100; |
| 141 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 142 | if (phydev->duplex == DUPLEX_FULL) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 143 | ctl |= BMCR_FULLDPLX; |
| 144 | |
| 145 | err = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl); |
| 146 | |
| 147 | return err; |
| 148 | } |
| 149 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 150 | /** |
| 151 | * genphy_restart_aneg - Enable and Restart Autonegotiation |
| 152 | * @phydev: target phy_device struct |
| 153 | */ |
| 154 | int genphy_restart_aneg(struct phy_device *phydev) |
| 155 | { |
| 156 | int ctl; |
| 157 | |
| 158 | ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR); |
| 159 | |
| 160 | if (ctl < 0) |
| 161 | return ctl; |
| 162 | |
| 163 | ctl |= (BMCR_ANENABLE | BMCR_ANRESTART); |
| 164 | |
| 165 | /* Don't isolate the PHY if we're negotiating */ |
| 166 | ctl &= ~(BMCR_ISOLATE); |
| 167 | |
| 168 | ctl = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl); |
| 169 | |
| 170 | return ctl; |
| 171 | } |
| 172 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 173 | /** |
| 174 | * genphy_config_aneg - restart auto-negotiation or write BMCR |
| 175 | * @phydev: target phy_device struct |
| 176 | * |
| 177 | * Description: If auto-negotiation is enabled, we configure the |
| 178 | * advertising, and then restart auto-negotiation. If it is not |
| 179 | * enabled, then we write the BMCR. |
| 180 | */ |
| 181 | int genphy_config_aneg(struct phy_device *phydev) |
| 182 | { |
| 183 | int result; |
| 184 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 185 | if (phydev->autoneg != AUTONEG_ENABLE) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 186 | return genphy_setup_forced(phydev); |
| 187 | |
| 188 | result = genphy_config_advert(phydev); |
| 189 | |
| 190 | if (result < 0) /* error */ |
| 191 | return result; |
| 192 | |
| 193 | if (result == 0) { |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 194 | /* |
| 195 | * Advertisment hasn't changed, but maybe aneg was never on to |
| 196 | * begin with? Or maybe phy was isolated? |
| 197 | */ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 198 | int ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR); |
| 199 | |
| 200 | if (ctl < 0) |
| 201 | return ctl; |
| 202 | |
| 203 | if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE)) |
| 204 | result = 1; /* do restart aneg */ |
| 205 | } |
| 206 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 207 | /* |
| 208 | * Only restart aneg if we are advertising something different |
| 209 | * than we were before. |
| 210 | */ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 211 | if (result > 0) |
| 212 | result = genphy_restart_aneg(phydev); |
| 213 | |
| 214 | return result; |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * genphy_update_link - update link status in @phydev |
| 219 | * @phydev: target phy_device struct |
| 220 | * |
| 221 | * Description: Update the value in phydev->link to reflect the |
| 222 | * current link value. In order to do this, we need to read |
| 223 | * the status register twice, keeping the second value. |
| 224 | */ |
| 225 | int genphy_update_link(struct phy_device *phydev) |
| 226 | { |
| 227 | unsigned int mii_reg; |
| 228 | |
| 229 | /* |
| 230 | * Wait if the link is up, and autonegotiation is in progress |
| 231 | * (ie - we're capable and it's not done) |
| 232 | */ |
| 233 | mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR); |
| 234 | |
| 235 | /* |
| 236 | * If we already saw the link up, and it hasn't gone down, then |
| 237 | * we don't need to wait for autoneg again |
| 238 | */ |
| 239 | if (phydev->link && mii_reg & BMSR_LSTATUS) |
| 240 | return 0; |
| 241 | |
Alexandre Messier | 010c5ec | 2016-01-22 14:16:56 -0500 | [diff] [blame] | 242 | if ((phydev->autoneg == AUTONEG_ENABLE) && |
| 243 | !(mii_reg & BMSR_ANEGCOMPLETE)) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 244 | int i = 0; |
| 245 | |
| 246 | printf("%s Waiting for PHY auto negotiation to complete", |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 247 | phydev->dev->name); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 248 | while (!(mii_reg & BMSR_ANEGCOMPLETE)) { |
| 249 | /* |
| 250 | * Timeout reached ? |
| 251 | */ |
Andre Przywara | 71a6a60 | 2020-01-03 22:08:47 +0000 | [diff] [blame] | 252 | if (i > (PHY_ANEG_TIMEOUT / 50)) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 253 | printf(" TIMEOUT !\n"); |
| 254 | phydev->link = 0; |
Michal Simek | cf6677b | 2016-05-18 12:48:57 +0200 | [diff] [blame] | 255 | return -ETIMEDOUT; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 256 | } |
| 257 | |
| 258 | if (ctrlc()) { |
| 259 | puts("user interrupt!\n"); |
| 260 | phydev->link = 0; |
| 261 | return -EINTR; |
| 262 | } |
| 263 | |
Stefan Roese | 5cf96d1 | 2019-09-30 10:26:42 +0200 | [diff] [blame] | 264 | if ((i++ % 10) == 0) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 265 | printf("."); |
| 266 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 267 | mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR); |
Stefan Roese | 5cf96d1 | 2019-09-30 10:26:42 +0200 | [diff] [blame] | 268 | mdelay(50); /* 50 ms */ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 269 | } |
| 270 | printf(" done\n"); |
| 271 | phydev->link = 1; |
| 272 | } else { |
| 273 | /* Read the link a second time to clear the latched state */ |
| 274 | mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR); |
| 275 | |
| 276 | if (mii_reg & BMSR_LSTATUS) |
| 277 | phydev->link = 1; |
| 278 | else |
| 279 | phydev->link = 0; |
| 280 | } |
| 281 | |
| 282 | return 0; |
| 283 | } |
| 284 | |
| 285 | /* |
| 286 | * Generic function which updates the speed and duplex. If |
| 287 | * autonegotiation is enabled, it uses the AND of the link |
| 288 | * partner's advertised capabilities and our advertised |
| 289 | * capabilities. If autonegotiation is disabled, we use the |
| 290 | * appropriate bits in the control register. |
| 291 | * |
| 292 | * Stolen from Linux's mii.c and phy_device.c |
| 293 | */ |
Yegor Yefremov | c40f5d3 | 2012-11-28 11:15:17 +0100 | [diff] [blame] | 294 | int genphy_parse_link(struct phy_device *phydev) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 295 | { |
| 296 | int mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR); |
| 297 | |
| 298 | /* We're using autonegotiation */ |
Alexandre Messier | 010c5ec | 2016-01-22 14:16:56 -0500 | [diff] [blame] | 299 | if (phydev->autoneg == AUTONEG_ENABLE) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 300 | u32 lpa = 0; |
Heiko Schocher | 94c3502 | 2013-07-23 15:32:36 +0200 | [diff] [blame] | 301 | int gblpa = 0; |
Charles Coldwell | 2332941 | 2013-02-21 08:25:52 -0500 | [diff] [blame] | 302 | u32 estatus = 0; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 303 | |
| 304 | /* Check for gigabit capability */ |
David Dueck | ed45423 | 2013-11-05 17:23:02 +0100 | [diff] [blame] | 305 | if (phydev->supported & (SUPPORTED_1000baseT_Full | |
| 306 | SUPPORTED_1000baseT_Half)) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 307 | /* We want a list of states supported by |
| 308 | * both PHYs in the link |
| 309 | */ |
| 310 | gblpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_STAT1000); |
Heiko Schocher | 94c3502 | 2013-07-23 15:32:36 +0200 | [diff] [blame] | 311 | if (gblpa < 0) { |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 312 | debug("Could not read MII_STAT1000. "); |
| 313 | debug("Ignoring gigabit capability\n"); |
Heiko Schocher | 94c3502 | 2013-07-23 15:32:36 +0200 | [diff] [blame] | 314 | gblpa = 0; |
| 315 | } |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 316 | gblpa &= phy_read(phydev, |
| 317 | MDIO_DEVAD_NONE, MII_CTRL1000) << 2; |
| 318 | } |
| 319 | |
| 320 | /* Set the baseline so we only have to set them |
| 321 | * if they're different |
| 322 | */ |
| 323 | phydev->speed = SPEED_10; |
| 324 | phydev->duplex = DUPLEX_HALF; |
| 325 | |
| 326 | /* Check the gigabit fields */ |
| 327 | if (gblpa & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) { |
| 328 | phydev->speed = SPEED_1000; |
| 329 | |
| 330 | if (gblpa & PHY_1000BTSR_1000FD) |
| 331 | phydev->duplex = DUPLEX_FULL; |
| 332 | |
| 333 | /* We're done! */ |
| 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | lpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE); |
| 338 | lpa &= phy_read(phydev, MDIO_DEVAD_NONE, MII_LPA); |
| 339 | |
Wolfgang Denk | a7b06ce | 2011-09-28 21:02:43 +0200 | [diff] [blame] | 340 | if (lpa & (LPA_100FULL | LPA_100HALF)) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 341 | phydev->speed = SPEED_100; |
| 342 | |
Wolfgang Denk | a7b06ce | 2011-09-28 21:02:43 +0200 | [diff] [blame] | 343 | if (lpa & LPA_100FULL) |
| 344 | phydev->duplex = DUPLEX_FULL; |
| 345 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 346 | } else if (lpa & LPA_10FULL) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 347 | phydev->duplex = DUPLEX_FULL; |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 348 | } |
Charles Coldwell | 2332941 | 2013-02-21 08:25:52 -0500 | [diff] [blame] | 349 | |
Sascha Silbe | 2ac8d30 | 2013-07-19 12:25:10 +0200 | [diff] [blame] | 350 | /* |
| 351 | * Extended status may indicate that the PHY supports |
| 352 | * 1000BASE-T/X even though the 1000BASE-T registers |
| 353 | * are missing. In this case we can't tell whether the |
| 354 | * peer also supports it, so we only check extended |
| 355 | * status if the 1000BASE-T registers are actually |
| 356 | * missing. |
| 357 | */ |
| 358 | if ((mii_reg & BMSR_ESTATEN) && !(mii_reg & BMSR_ERCAP)) |
Charles Coldwell | 2332941 | 2013-02-21 08:25:52 -0500 | [diff] [blame] | 359 | estatus = phy_read(phydev, MDIO_DEVAD_NONE, |
| 360 | MII_ESTATUS); |
| 361 | |
| 362 | if (estatus & (ESTATUS_1000_XFULL | ESTATUS_1000_XHALF | |
| 363 | ESTATUS_1000_TFULL | ESTATUS_1000_THALF)) { |
| 364 | phydev->speed = SPEED_1000; |
| 365 | if (estatus & (ESTATUS_1000_XFULL | ESTATUS_1000_TFULL)) |
| 366 | phydev->duplex = DUPLEX_FULL; |
| 367 | } |
| 368 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 369 | } else { |
| 370 | u32 bmcr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR); |
| 371 | |
| 372 | phydev->speed = SPEED_10; |
| 373 | phydev->duplex = DUPLEX_HALF; |
| 374 | |
| 375 | if (bmcr & BMCR_FULLDPLX) |
| 376 | phydev->duplex = DUPLEX_FULL; |
| 377 | |
| 378 | if (bmcr & BMCR_SPEED1000) |
| 379 | phydev->speed = SPEED_1000; |
| 380 | else if (bmcr & BMCR_SPEED100) |
| 381 | phydev->speed = SPEED_100; |
| 382 | } |
| 383 | |
| 384 | return 0; |
| 385 | } |
| 386 | |
| 387 | int genphy_config(struct phy_device *phydev) |
| 388 | { |
| 389 | int val; |
| 390 | u32 features; |
| 391 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 392 | features = (SUPPORTED_TP | SUPPORTED_MII |
| 393 | | SUPPORTED_AUI | SUPPORTED_FIBRE | |
| 394 | SUPPORTED_BNC); |
| 395 | |
| 396 | /* Do we support autonegotiation? */ |
| 397 | val = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR); |
| 398 | |
| 399 | if (val < 0) |
| 400 | return val; |
| 401 | |
| 402 | if (val & BMSR_ANEGCAPABLE) |
| 403 | features |= SUPPORTED_Autoneg; |
| 404 | |
| 405 | if (val & BMSR_100FULL) |
| 406 | features |= SUPPORTED_100baseT_Full; |
| 407 | if (val & BMSR_100HALF) |
| 408 | features |= SUPPORTED_100baseT_Half; |
| 409 | if (val & BMSR_10FULL) |
| 410 | features |= SUPPORTED_10baseT_Full; |
| 411 | if (val & BMSR_10HALF) |
| 412 | features |= SUPPORTED_10baseT_Half; |
| 413 | |
| 414 | if (val & BMSR_ESTATEN) { |
| 415 | val = phy_read(phydev, MDIO_DEVAD_NONE, MII_ESTATUS); |
| 416 | |
| 417 | if (val < 0) |
| 418 | return val; |
| 419 | |
| 420 | if (val & ESTATUS_1000_TFULL) |
| 421 | features |= SUPPORTED_1000baseT_Full; |
| 422 | if (val & ESTATUS_1000_THALF) |
| 423 | features |= SUPPORTED_1000baseT_Half; |
Charles Coldwell | 2332941 | 2013-02-21 08:25:52 -0500 | [diff] [blame] | 424 | if (val & ESTATUS_1000_XFULL) |
| 425 | features |= SUPPORTED_1000baseX_Full; |
| 426 | if (val & ESTATUS_1000_XHALF) |
Fabio Estevam | 45d601e | 2013-07-19 10:01:34 -0300 | [diff] [blame] | 427 | features |= SUPPORTED_1000baseX_Half; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 428 | } |
| 429 | |
Sascha Hauer | 6cc1e7d | 2016-01-13 16:59:32 +0300 | [diff] [blame] | 430 | phydev->supported &= features; |
| 431 | phydev->advertising &= features; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 432 | |
| 433 | genphy_config_aneg(phydev); |
| 434 | |
| 435 | return 0; |
| 436 | } |
| 437 | |
| 438 | int genphy_startup(struct phy_device *phydev) |
| 439 | { |
Michal Simek | 5ff8966 | 2016-05-18 12:46:12 +0200 | [diff] [blame] | 440 | int ret; |
| 441 | |
| 442 | ret = genphy_update_link(phydev); |
| 443 | if (ret) |
| 444 | return ret; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 445 | |
Michal Simek | 5ff8966 | 2016-05-18 12:46:12 +0200 | [diff] [blame] | 446 | return genphy_parse_link(phydev); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 447 | } |
| 448 | |
| 449 | int genphy_shutdown(struct phy_device *phydev) |
| 450 | { |
| 451 | return 0; |
| 452 | } |
| 453 | |
| 454 | static struct phy_driver genphy_driver = { |
| 455 | .uid = 0xffffffff, |
| 456 | .mask = 0xffffffff, |
| 457 | .name = "Generic PHY", |
Sascha Hauer | 6cc1e7d | 2016-01-13 16:59:32 +0300 | [diff] [blame] | 458 | .features = PHY_GBIT_FEATURES | SUPPORTED_MII | |
| 459 | SUPPORTED_AUI | SUPPORTED_FIBRE | |
| 460 | SUPPORTED_BNC, |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 461 | .config = genphy_config, |
| 462 | .startup = genphy_startup, |
| 463 | .shutdown = genphy_shutdown, |
| 464 | }; |
| 465 | |
Siva Durga Prasad Paladugu | 1daad9e | 2019-03-15 17:46:47 +0530 | [diff] [blame] | 466 | int genphy_init(void) |
| 467 | { |
| 468 | return phy_register(&genphy_driver); |
| 469 | } |
| 470 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 471 | static LIST_HEAD(phy_drivers); |
| 472 | |
| 473 | int phy_init(void) |
| 474 | { |
Siva Durga Prasad Paladugu | f113754 | 2019-03-04 16:01:30 +0100 | [diff] [blame] | 475 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
| 476 | /* |
| 477 | * The pointers inside phy_drivers also needs to be updated incase of |
| 478 | * manual reloc, without which these points to some invalid |
| 479 | * pre reloc address and leads to invalid accesses, hangs. |
| 480 | */ |
| 481 | struct list_head *head = &phy_drivers; |
| 482 | |
| 483 | head->next = (void *)head->next + gd->reloc_off; |
| 484 | head->prev = (void *)head->prev + gd->reloc_off; |
| 485 | #endif |
| 486 | |
Florian Fainelli | 01b4ade | 2017-12-09 14:59:54 -0800 | [diff] [blame] | 487 | #ifdef CONFIG_B53_SWITCH |
| 488 | phy_b53_init(); |
| 489 | #endif |
Kevin Smith | 87b2c4e | 2016-03-31 19:33:12 +0000 | [diff] [blame] | 490 | #ifdef CONFIG_MV88E61XX_SWITCH |
| 491 | phy_mv88e61xx_init(); |
| 492 | #endif |
Shaohui Xie | 0e548d7 | 2014-12-30 18:32:04 +0800 | [diff] [blame] | 493 | #ifdef CONFIG_PHY_AQUANTIA |
| 494 | phy_aquantia_init(); |
| 495 | #endif |
Andy Fleming | 60ca78b | 2011-04-07 21:56:05 -0500 | [diff] [blame] | 496 | #ifdef CONFIG_PHY_ATHEROS |
| 497 | phy_atheros_init(); |
| 498 | #endif |
| 499 | #ifdef CONFIG_PHY_BROADCOM |
| 500 | phy_broadcom_init(); |
| 501 | #endif |
Shengzhou Liu | c878bdb | 2014-11-10 18:32:29 +0800 | [diff] [blame] | 502 | #ifdef CONFIG_PHY_CORTINA |
| 503 | phy_cortina_init(); |
| 504 | #endif |
Abbie Chang | 556872f | 2021-01-14 13:34:12 -0800 | [diff] [blame] | 505 | #ifdef CONFIG_PHY_CORTINA_ACCESS |
| 506 | phy_cortina_access_init(); |
| 507 | #endif |
Andy Fleming | 60ca78b | 2011-04-07 21:56:05 -0500 | [diff] [blame] | 508 | #ifdef CONFIG_PHY_DAVICOM |
| 509 | phy_davicom_init(); |
| 510 | #endif |
Matt Porter | 3bbeb79 | 2013-03-20 05:38:13 +0000 | [diff] [blame] | 511 | #ifdef CONFIG_PHY_ET1011C |
| 512 | phy_et1011c_init(); |
| 513 | #endif |
Andy Fleming | 60ca78b | 2011-04-07 21:56:05 -0500 | [diff] [blame] | 514 | #ifdef CONFIG_PHY_LXT |
| 515 | phy_lxt_init(); |
| 516 | #endif |
| 517 | #ifdef CONFIG_PHY_MARVELL |
| 518 | phy_marvell_init(); |
| 519 | #endif |
Alexandru Gagniuc | 757bb67 | 2017-07-07 11:36:57 -0700 | [diff] [blame] | 520 | #ifdef CONFIG_PHY_MICREL_KSZ8XXX |
| 521 | phy_micrel_ksz8xxx_init(); |
| 522 | #endif |
| 523 | #ifdef CONFIG_PHY_MICREL_KSZ90X1 |
| 524 | phy_micrel_ksz90x1_init(); |
Andy Fleming | 60ca78b | 2011-04-07 21:56:05 -0500 | [diff] [blame] | 525 | #endif |
Neil Armstrong | 7a4c90d | 2017-10-18 10:02:10 +0200 | [diff] [blame] | 526 | #ifdef CONFIG_PHY_MESON_GXL |
| 527 | phy_meson_gxl_init(); |
| 528 | #endif |
Andy Fleming | 60ca78b | 2011-04-07 21:56:05 -0500 | [diff] [blame] | 529 | #ifdef CONFIG_PHY_NATSEMI |
| 530 | phy_natsemi_init(); |
| 531 | #endif |
Radu Pirea (NXP OSS) | f2d36cb | 2021-06-18 21:58:30 +0300 | [diff] [blame] | 532 | #ifdef CONFIG_NXP_C45_TJA11XX_PHY |
| 533 | phy_nxp_tja11xx_init(); |
| 534 | #endif |
Andy Fleming | 60ca78b | 2011-04-07 21:56:05 -0500 | [diff] [blame] | 535 | #ifdef CONFIG_PHY_REALTEK |
| 536 | phy_realtek_init(); |
| 537 | #endif |
Nobuhiro Iwamatsu | 61134dc | 2011-11-23 21:24:15 +0000 | [diff] [blame] | 538 | #ifdef CONFIG_PHY_SMSC |
| 539 | phy_smsc_init(); |
| 540 | #endif |
Andy Fleming | 60ca78b | 2011-04-07 21:56:05 -0500 | [diff] [blame] | 541 | #ifdef CONFIG_PHY_TERANETICS |
| 542 | phy_teranetics_init(); |
| 543 | #endif |
Edgar E. Iglesias | 8d3ce68 | 2015-09-25 23:46:08 -0700 | [diff] [blame] | 544 | #ifdef CONFIG_PHY_TI |
| 545 | phy_ti_init(); |
| 546 | #endif |
Andy Fleming | 60ca78b | 2011-04-07 21:56:05 -0500 | [diff] [blame] | 547 | #ifdef CONFIG_PHY_VITESSE |
| 548 | phy_vitesse_init(); |
| 549 | #endif |
Siva Durga Prasad Paladugu | dd6cbd3 | 2016-02-05 13:22:10 +0530 | [diff] [blame] | 550 | #ifdef CONFIG_PHY_XILINX |
| 551 | phy_xilinx_init(); |
| 552 | #endif |
John Haechten | ee253f9 | 2016-12-09 22:15:17 +0000 | [diff] [blame] | 553 | #ifdef CONFIG_PHY_MSCC |
| 554 | phy_mscc_init(); |
| 555 | #endif |
Hannes Schmelzer | da49460 | 2017-03-23 15:11:43 +0100 | [diff] [blame] | 556 | #ifdef CONFIG_PHY_FIXED |
| 557 | phy_fixed_init(); |
| 558 | #endif |
Samuel Mendoza-Jonas | b069c4a | 2019-06-18 11:37:18 +1000 | [diff] [blame] | 559 | #ifdef CONFIG_PHY_NCSI |
| 560 | phy_ncsi_init(); |
| 561 | #endif |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 562 | #ifdef CONFIG_PHY_XILINX_GMII2RGMII |
| 563 | phy_xilinx_gmii2rgmii_init(); |
| 564 | #endif |
Siva Durga Prasad Paladugu | 1daad9e | 2019-03-15 17:46:47 +0530 | [diff] [blame] | 565 | genphy_init(); |
| 566 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 567 | return 0; |
| 568 | } |
| 569 | |
| 570 | int phy_register(struct phy_driver *drv) |
| 571 | { |
| 572 | INIT_LIST_HEAD(&drv->list); |
| 573 | list_add_tail(&drv->list, &phy_drivers); |
| 574 | |
Michal Simek | 5f67631 | 2015-05-13 13:40:40 +0200 | [diff] [blame] | 575 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
| 576 | if (drv->probe) |
| 577 | drv->probe += gd->reloc_off; |
| 578 | if (drv->config) |
| 579 | drv->config += gd->reloc_off; |
| 580 | if (drv->startup) |
| 581 | drv->startup += gd->reloc_off; |
| 582 | if (drv->shutdown) |
| 583 | drv->shutdown += gd->reloc_off; |
| 584 | if (drv->readext) |
| 585 | drv->readext += gd->reloc_off; |
| 586 | if (drv->writeext) |
| 587 | drv->writeext += gd->reloc_off; |
Carlo Caione | 4de87e2 | 2019-02-08 17:25:06 +0000 | [diff] [blame] | 588 | if (drv->read_mmd) |
| 589 | drv->read_mmd += gd->reloc_off; |
| 590 | if (drv->write_mmd) |
| 591 | drv->write_mmd += gd->reloc_off; |
Michal Simek | 5f67631 | 2015-05-13 13:40:40 +0200 | [diff] [blame] | 592 | #endif |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 593 | return 0; |
| 594 | } |
| 595 | |
Alexey Brodkin | e476bb2 | 2016-01-13 16:59:34 +0300 | [diff] [blame] | 596 | int phy_set_supported(struct phy_device *phydev, u32 max_speed) |
| 597 | { |
| 598 | /* The default values for phydev->supported are provided by the PHY |
| 599 | * driver "features" member, we want to reset to sane defaults first |
| 600 | * before supporting higher speeds. |
| 601 | */ |
| 602 | phydev->supported &= PHY_DEFAULT_FEATURES; |
| 603 | |
| 604 | switch (max_speed) { |
| 605 | default: |
| 606 | return -ENOTSUPP; |
| 607 | case SPEED_1000: |
| 608 | phydev->supported |= PHY_1000BT_FEATURES; |
| 609 | /* fall through */ |
| 610 | case SPEED_100: |
| 611 | phydev->supported |= PHY_100BT_FEATURES; |
| 612 | /* fall through */ |
| 613 | case SPEED_10: |
| 614 | phydev->supported |= PHY_10BT_FEATURES; |
| 615 | } |
| 616 | |
| 617 | return 0; |
| 618 | } |
| 619 | |
Kim Phillips | 914b078 | 2012-10-29 13:34:34 +0000 | [diff] [blame] | 620 | static int phy_probe(struct phy_device *phydev) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 621 | { |
| 622 | int err = 0; |
| 623 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 624 | phydev->advertising = phydev->drv->features; |
| 625 | phydev->supported = phydev->drv->features; |
| 626 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 627 | phydev->mmds = phydev->drv->mmds; |
| 628 | |
| 629 | if (phydev->drv->probe) |
| 630 | err = phydev->drv->probe(phydev); |
| 631 | |
| 632 | return err; |
| 633 | } |
| 634 | |
| 635 | static struct phy_driver *generic_for_interface(phy_interface_t interface) |
| 636 | { |
| 637 | #ifdef CONFIG_PHYLIB_10G |
| 638 | if (is_10g_interface(interface)) |
| 639 | return &gen10g_driver; |
| 640 | #endif |
| 641 | |
| 642 | return &genphy_driver; |
| 643 | } |
| 644 | |
Kim Phillips | 914b078 | 2012-10-29 13:34:34 +0000 | [diff] [blame] | 645 | static struct phy_driver *get_phy_driver(struct phy_device *phydev, |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 646 | phy_interface_t interface) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 647 | { |
| 648 | struct list_head *entry; |
| 649 | int phy_id = phydev->phy_id; |
| 650 | struct phy_driver *drv = NULL; |
| 651 | |
| 652 | list_for_each(entry, &phy_drivers) { |
| 653 | drv = list_entry(entry, struct phy_driver, list); |
| 654 | if ((drv->uid & drv->mask) == (phy_id & drv->mask)) |
| 655 | return drv; |
| 656 | } |
| 657 | |
| 658 | /* If we made it here, there's no driver for this PHY */ |
| 659 | return generic_for_interface(interface); |
| 660 | } |
| 661 | |
Kim Phillips | 914b078 | 2012-10-29 13:34:34 +0000 | [diff] [blame] | 662 | static struct phy_device *phy_device_create(struct mii_dev *bus, int addr, |
Pankaj Bansal | 3c43a48 | 2018-11-16 06:26:18 +0000 | [diff] [blame] | 663 | u32 phy_id, bool is_c45, |
Kim Phillips | 914b078 | 2012-10-29 13:34:34 +0000 | [diff] [blame] | 664 | phy_interface_t interface) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 665 | { |
| 666 | struct phy_device *dev; |
| 667 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 668 | /* |
| 669 | * We allocate the device, and initialize the |
| 670 | * default values |
| 671 | */ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 672 | dev = malloc(sizeof(*dev)); |
| 673 | if (!dev) { |
| 674 | printf("Failed to allocate PHY device for %s:%d\n", |
Vladimir Oltean | fb73b12 | 2020-07-16 18:09:08 +0800 | [diff] [blame] | 675 | bus ? bus->name : "(null bus)", addr); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 676 | return NULL; |
| 677 | } |
| 678 | |
| 679 | memset(dev, 0, sizeof(*dev)); |
| 680 | |
| 681 | dev->duplex = -1; |
Mugunthan V N | bbc97ba | 2015-09-03 15:50:21 +0530 | [diff] [blame] | 682 | dev->link = 0; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 683 | dev->interface = interface; |
| 684 | |
Grygorii Strashko | 6189c06 | 2018-07-05 12:02:48 -0500 | [diff] [blame] | 685 | #ifdef CONFIG_DM_ETH |
| 686 | dev->node = ofnode_null(); |
| 687 | #endif |
| 688 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 689 | dev->autoneg = AUTONEG_ENABLE; |
| 690 | |
| 691 | dev->addr = addr; |
| 692 | dev->phy_id = phy_id; |
Pankaj Bansal | 3c43a48 | 2018-11-16 06:26:18 +0000 | [diff] [blame] | 693 | dev->is_c45 = is_c45; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 694 | dev->bus = bus; |
| 695 | |
| 696 | dev->drv = get_phy_driver(dev, interface); |
| 697 | |
Siva Durga Prasad Paladugu | a722848 | 2019-03-04 16:02:11 +0100 | [diff] [blame] | 698 | if (phy_probe(dev)) { |
| 699 | printf("%s, PHY probe failed\n", __func__); |
| 700 | return NULL; |
| 701 | } |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 702 | |
Vladimir Oltean | fb73b12 | 2020-07-16 18:09:08 +0800 | [diff] [blame] | 703 | if (addr >= 0 && addr < PHY_MAX_ADDR && phy_id != PHY_FIXED_ID) |
Michal Simek | 02a99d7 | 2018-12-19 16:57:38 +0100 | [diff] [blame] | 704 | bus->phymap[addr] = dev; |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 705 | |
| 706 | return dev; |
| 707 | } |
| 708 | |
| 709 | /** |
| 710 | * get_phy_id - reads the specified addr for its ID. |
| 711 | * @bus: the target MII bus |
| 712 | * @addr: PHY address on the MII bus |
| 713 | * @phy_id: where to store the ID retrieved. |
| 714 | * |
| 715 | * Description: Reads the ID registers of the PHY at @addr on the |
| 716 | * @bus, stores it in @phy_id and returns zero on success. |
| 717 | */ |
Shengzhou Liu | 072b0fa | 2015-04-07 18:46:32 +0800 | [diff] [blame] | 718 | int __weak get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 719 | { |
| 720 | int phy_reg; |
| 721 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 722 | /* |
| 723 | * Grab the bits from PHYIR1, and put them |
| 724 | * in the upper half |
| 725 | */ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 726 | phy_reg = bus->read(bus, addr, devad, MII_PHYSID1); |
| 727 | |
| 728 | if (phy_reg < 0) |
| 729 | return -EIO; |
| 730 | |
| 731 | *phy_id = (phy_reg & 0xffff) << 16; |
| 732 | |
| 733 | /* Grab the bits from PHYIR2, and put them in the lower half */ |
| 734 | phy_reg = bus->read(bus, addr, devad, MII_PHYSID2); |
| 735 | |
| 736 | if (phy_reg < 0) |
| 737 | return -EIO; |
| 738 | |
| 739 | *phy_id |= (phy_reg & 0xffff); |
| 740 | |
| 741 | return 0; |
| 742 | } |
| 743 | |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 744 | static struct phy_device *create_phy_by_mask(struct mii_dev *bus, |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 745 | uint phy_mask, int devad, |
| 746 | phy_interface_t interface) |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 747 | { |
| 748 | u32 phy_id = 0xffffffff; |
Pankaj Bansal | 3c43a48 | 2018-11-16 06:26:18 +0000 | [diff] [blame] | 749 | bool is_c45; |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 750 | |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 751 | while (phy_mask) { |
| 752 | int addr = ffs(phy_mask) - 1; |
| 753 | int r = get_phy_id(bus, addr, devad, &phy_id); |
Alex Marginean | 920fe67 | 2019-07-05 12:28:55 +0300 | [diff] [blame] | 754 | |
| 755 | /* |
| 756 | * If the PHY ID is flat 0 we ignore it. There are C45 PHYs |
| 757 | * that return all 0s for C22 reads (like Aquantia AQR112) and |
| 758 | * there are C22 PHYs that return all 0s for C45 reads (like |
| 759 | * Atheros AR8035). |
| 760 | */ |
| 761 | if (r == 0 && phy_id == 0) |
| 762 | goto next; |
| 763 | |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 764 | /* If the PHY ID is mostly f's, we didn't find anything */ |
Pankaj Bansal | 3c43a48 | 2018-11-16 06:26:18 +0000 | [diff] [blame] | 765 | if (r == 0 && (phy_id & 0x1fffffff) != 0x1fffffff) { |
| 766 | is_c45 = (devad == MDIO_DEVAD_NONE) ? false : true; |
| 767 | return phy_device_create(bus, addr, phy_id, is_c45, |
| 768 | interface); |
| 769 | } |
Alex Marginean | 920fe67 | 2019-07-05 12:28:55 +0300 | [diff] [blame] | 770 | next: |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 771 | phy_mask &= ~(1 << addr); |
| 772 | } |
| 773 | return NULL; |
| 774 | } |
| 775 | |
| 776 | static struct phy_device *search_for_existing_phy(struct mii_dev *bus, |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 777 | uint phy_mask, |
| 778 | phy_interface_t interface) |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 779 | { |
| 780 | /* If we have one, return the existing device, with new interface */ |
| 781 | while (phy_mask) { |
| 782 | int addr = ffs(phy_mask) - 1; |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 783 | |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 784 | if (bus->phymap[addr]) { |
| 785 | bus->phymap[addr]->interface = interface; |
| 786 | return bus->phymap[addr]; |
| 787 | } |
| 788 | phy_mask &= ~(1 << addr); |
| 789 | } |
| 790 | return NULL; |
| 791 | } |
| 792 | |
| 793 | static struct phy_device *get_phy_device_by_mask(struct mii_dev *bus, |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 794 | uint phy_mask, |
| 795 | phy_interface_t interface) |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 796 | { |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 797 | struct phy_device *phydev; |
Florin Chiculita | 0439bee | 2020-04-29 14:25:48 +0300 | [diff] [blame] | 798 | int devad[] = { |
| 799 | /* Clause-22 */ |
| 800 | MDIO_DEVAD_NONE, |
| 801 | /* Clause-45 */ |
| 802 | MDIO_MMD_PMAPMD, |
| 803 | MDIO_MMD_WIS, |
| 804 | MDIO_MMD_PCS, |
| 805 | MDIO_MMD_PHYXS, |
| 806 | MDIO_MMD_VEND1, |
| 807 | }; |
| 808 | int i, devad_cnt; |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 809 | |
Florin Chiculita | 0439bee | 2020-04-29 14:25:48 +0300 | [diff] [blame] | 810 | devad_cnt = sizeof(devad)/sizeof(int); |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 811 | phydev = search_for_existing_phy(bus, phy_mask, interface); |
| 812 | if (phydev) |
| 813 | return phydev; |
Florin Chiculita | 0439bee | 2020-04-29 14:25:48 +0300 | [diff] [blame] | 814 | /* try different access clauses */ |
| 815 | for (i = 0; i < devad_cnt; i++) { |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 816 | phydev = create_phy_by_mask(bus, phy_mask, |
Florin Chiculita | 0439bee | 2020-04-29 14:25:48 +0300 | [diff] [blame] | 817 | devad[i], interface); |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 818 | if (IS_ERR(phydev)) |
| 819 | return NULL; |
| 820 | if (phydev) |
| 821 | return phydev; |
| 822 | } |
Bin Meng | 59c6d89 | 2015-10-07 21:19:30 -0700 | [diff] [blame] | 823 | |
| 824 | debug("\n%s PHY: ", bus->name); |
| 825 | while (phy_mask) { |
| 826 | int addr = ffs(phy_mask) - 1; |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 827 | |
Bin Meng | 59c6d89 | 2015-10-07 21:19:30 -0700 | [diff] [blame] | 828 | debug("%d ", addr); |
| 829 | phy_mask &= ~(1 << addr); |
| 830 | } |
| 831 | debug("not found\n"); |
Bin Meng | 0776c57 | 2015-10-07 21:19:29 -0700 | [diff] [blame] | 832 | |
| 833 | return NULL; |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 834 | } |
| 835 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 836 | /** |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 837 | * get_phy_device - reads the specified PHY device and returns its |
| 838 | * @phy_device struct |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 839 | * @bus: the target MII bus |
| 840 | * @addr: PHY address on the MII bus |
| 841 | * |
| 842 | * Description: Reads the ID registers of the PHY at @addr on the |
| 843 | * @bus, then allocates and returns the phy_device to represent it. |
| 844 | */ |
Kim Phillips | 914b078 | 2012-10-29 13:34:34 +0000 | [diff] [blame] | 845 | static struct phy_device *get_phy_device(struct mii_dev *bus, int addr, |
| 846 | phy_interface_t interface) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 847 | { |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 848 | return get_phy_device_by_mask(bus, 1 << addr, interface); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 849 | } |
| 850 | |
| 851 | int phy_reset(struct phy_device *phydev) |
| 852 | { |
| 853 | int reg; |
| 854 | int timeout = 500; |
| 855 | int devad = MDIO_DEVAD_NONE; |
| 856 | |
Shaohui Xie | 62a7b92 | 2016-01-28 15:55:46 +0800 | [diff] [blame] | 857 | if (phydev->flags & PHY_FLAG_BROKEN_RESET) |
| 858 | return 0; |
| 859 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 860 | #ifdef CONFIG_PHYLIB_10G |
| 861 | /* If it's 10G, we need to issue reset through one of the MMDs */ |
| 862 | if (is_10g_interface(phydev->interface)) { |
| 863 | if (!phydev->mmds) |
| 864 | gen10g_discover_mmds(phydev); |
| 865 | |
| 866 | devad = ffs(phydev->mmds) - 1; |
| 867 | } |
| 868 | #endif |
| 869 | |
Stefan Agner | e64013d | 2015-12-09 11:21:25 -0800 | [diff] [blame] | 870 | if (phy_write(phydev, devad, MII_BMCR, BMCR_RESET) < 0) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 871 | debug("PHY reset failed\n"); |
| 872 | return -1; |
| 873 | } |
| 874 | |
| 875 | #ifdef CONFIG_PHY_RESET_DELAY |
| 876 | udelay(CONFIG_PHY_RESET_DELAY); /* Intel LXT971A needs this */ |
| 877 | #endif |
| 878 | /* |
| 879 | * Poll the control register for the reset bit to go to 0 (it is |
| 880 | * auto-clearing). This should happen within 0.5 seconds per the |
| 881 | * IEEE spec. |
| 882 | */ |
Stefan Agner | e64013d | 2015-12-09 11:21:25 -0800 | [diff] [blame] | 883 | reg = phy_read(phydev, devad, MII_BMCR); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 884 | while ((reg & BMCR_RESET) && timeout--) { |
| 885 | reg = phy_read(phydev, devad, MII_BMCR); |
| 886 | |
| 887 | if (reg < 0) { |
| 888 | debug("PHY status read failed\n"); |
| 889 | return -1; |
| 890 | } |
| 891 | udelay(1000); |
| 892 | } |
| 893 | |
| 894 | if (reg & BMCR_RESET) { |
| 895 | puts("PHY reset timed out\n"); |
| 896 | return -1; |
| 897 | } |
| 898 | |
| 899 | return 0; |
| 900 | } |
| 901 | |
| 902 | int miiphy_reset(const char *devname, unsigned char addr) |
| 903 | { |
| 904 | struct mii_dev *bus = miiphy_get_dev_by_name(devname); |
| 905 | struct phy_device *phydev; |
| 906 | |
| 907 | /* |
| 908 | * miiphy_reset was only used on standard PHYs, so we'll fake it here. |
| 909 | * If later code tries to connect with the right interface, this will |
| 910 | * be corrected by get_phy_device in phy_connect() |
| 911 | */ |
| 912 | phydev = get_phy_device(bus, addr, PHY_INTERFACE_MODE_MII); |
| 913 | |
| 914 | return phy_reset(phydev); |
| 915 | } |
| 916 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 917 | struct phy_device *phy_find_by_mask(struct mii_dev *bus, uint phy_mask, |
| 918 | phy_interface_t interface) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 919 | { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 920 | /* Reset the bus */ |
Jörg Krause | 71b1d86 | 2015-07-15 15:18:22 +0200 | [diff] [blame] | 921 | if (bus->reset) { |
Vladimir Zapolskiy | 46f10bb | 2011-09-05 07:24:07 +0000 | [diff] [blame] | 922 | bus->reset(bus); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 923 | |
Jörg Krause | 71b1d86 | 2015-07-15 15:18:22 +0200 | [diff] [blame] | 924 | /* Wait 15ms to make sure the PHY has come out of hard reset */ |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 925 | mdelay(15); |
Jörg Krause | 71b1d86 | 2015-07-15 15:18:22 +0200 | [diff] [blame] | 926 | } |
| 927 | |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 928 | return get_phy_device_by_mask(bus, phy_mask, interface); |
| 929 | } |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 930 | |
Simon Glass | dbad346 | 2015-04-05 16:07:39 -0600 | [diff] [blame] | 931 | #ifdef CONFIG_DM_ETH |
| 932 | void phy_connect_dev(struct phy_device *phydev, struct udevice *dev) |
| 933 | #else |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 934 | void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev) |
Simon Glass | dbad346 | 2015-04-05 16:07:39 -0600 | [diff] [blame] | 935 | #endif |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 936 | { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 937 | /* Soft Reset the PHY */ |
| 938 | phy_reset(phydev); |
Bin Meng | f87a15c | 2015-10-07 21:19:31 -0700 | [diff] [blame] | 939 | if (phydev->dev && phydev->dev != dev) { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 940 | printf("%s:%d is connected to %s. Reconnecting to %s\n", |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 941 | phydev->bus->name, phydev->addr, |
| 942 | phydev->dev->name, dev->name); |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 943 | } |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 944 | phydev->dev = dev; |
Wolfgang Denk | a71ebc4 | 2011-07-24 21:39:10 +0000 | [diff] [blame] | 945 | debug("%s connected to %s\n", dev->name, phydev->drv->name); |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 946 | } |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 947 | |
| 948 | #ifdef CONFIG_PHY_XILINX_GMII2RGMII |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 949 | static struct phy_device *phy_connect_gmii2rgmii(struct mii_dev *bus, |
| 950 | struct udevice *dev, |
| 951 | phy_interface_t interface) |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 952 | { |
| 953 | struct phy_device *phydev = NULL; |
Michal Simek | 7727203 | 2021-04-26 14:26:48 +0200 | [diff] [blame] | 954 | ofnode node; |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 955 | |
Michal Simek | 7727203 | 2021-04-26 14:26:48 +0200 | [diff] [blame] | 956 | ofnode_for_each_subnode(node, dev_ofnode(dev)) { |
Bin Meng | 021e7e7 | 2021-03-14 20:14:50 +0800 | [diff] [blame] | 957 | node = ofnode_by_compatible(node, "xlnx,gmii-to-rgmii-1.0"); |
| 958 | if (ofnode_valid(node)) { |
| 959 | phydev = phy_device_create(bus, 0, |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 960 | PHY_GMII2RGMII_ID, false, |
| 961 | interface); |
Bin Meng | 021e7e7 | 2021-03-14 20:14:50 +0800 | [diff] [blame] | 962 | if (phydev) |
| 963 | phydev->node = node; |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 964 | break; |
| 965 | } |
Bin Meng | 021e7e7 | 2021-03-14 20:14:50 +0800 | [diff] [blame] | 966 | |
| 967 | node = ofnode_first_subnode(node); |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 968 | } |
| 969 | |
| 970 | return phydev; |
| 971 | } |
| 972 | #endif |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 973 | |
Siva Durga Prasad Paladugu | 03f937a | 2018-11-27 11:49:10 +0530 | [diff] [blame] | 974 | #ifdef CONFIG_PHY_FIXED |
Vladimir Oltean | 8c089f7 | 2021-01-25 14:23:52 +0200 | [diff] [blame] | 975 | /** |
| 976 | * fixed_phy_create() - create an unconnected fixed-link pseudo-PHY device |
| 977 | * @node: OF node for the container of the fixed-link node |
| 978 | * |
| 979 | * Description: Creates a struct phy_device based on a fixed-link of_node |
| 980 | * description. Can be used without phy_connect by drivers which do not expose |
| 981 | * a UCLASS_ETH udevice. |
| 982 | */ |
| 983 | struct phy_device *fixed_phy_create(ofnode node) |
| 984 | { |
| 985 | phy_interface_t interface = PHY_INTERFACE_MODE_NONE; |
Vladimir Oltean | 6ca194a | 2021-03-14 20:14:48 +0800 | [diff] [blame] | 986 | struct phy_device *phydev; |
Vladimir Oltean | 8c089f7 | 2021-01-25 14:23:52 +0200 | [diff] [blame] | 987 | const char *if_str; |
| 988 | ofnode subnode; |
| 989 | |
| 990 | if_str = ofnode_read_string(node, "phy-mode"); |
| 991 | if (!if_str) { |
| 992 | if_str = ofnode_read_string(node, "phy-interface-type"); |
| 993 | } |
| 994 | if (if_str) { |
| 995 | interface = phy_get_interface_by_name(if_str); |
| 996 | } |
| 997 | |
| 998 | subnode = ofnode_find_subnode(node, "fixed-link"); |
| 999 | if (!ofnode_valid(subnode)) { |
| 1000 | return NULL; |
| 1001 | } |
| 1002 | |
Vladimir Oltean | 6ca194a | 2021-03-14 20:14:48 +0800 | [diff] [blame] | 1003 | phydev = phy_device_create(NULL, 0, PHY_FIXED_ID, false, interface); |
| 1004 | if (phydev) |
| 1005 | phydev->node = subnode; |
| 1006 | |
| 1007 | return phydev; |
Vladimir Oltean | 8c089f7 | 2021-01-25 14:23:52 +0200 | [diff] [blame] | 1008 | } |
| 1009 | |
Siva Durga Prasad Paladugu | 03f937a | 2018-11-27 11:49:10 +0530 | [diff] [blame] | 1010 | static struct phy_device *phy_connect_fixed(struct mii_dev *bus, |
| 1011 | struct udevice *dev, |
| 1012 | phy_interface_t interface) |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 1013 | { |
Vladimir Oltean | 6ca194a | 2021-03-14 20:14:48 +0800 | [diff] [blame] | 1014 | ofnode node = dev_ofnode(dev), subnode; |
Bin Meng | b34ef72 | 2021-03-14 20:14:52 +0800 | [diff] [blame] | 1015 | struct phy_device *phydev = NULL; |
Vladimir Oltean | 6ca194a | 2021-03-14 20:14:48 +0800 | [diff] [blame] | 1016 | |
Bin Meng | b34ef72 | 2021-03-14 20:14:52 +0800 | [diff] [blame] | 1017 | if (ofnode_phy_is_fixed_link(node, &subnode)) { |
| 1018 | phydev = phy_device_create(bus, 0, PHY_FIXED_ID, |
| 1019 | false, interface); |
| 1020 | if (phydev) |
| 1021 | phydev->node = subnode; |
| 1022 | } |
Siva Durga Prasad Paladugu | 03f937a | 2018-11-27 11:49:10 +0530 | [diff] [blame] | 1023 | |
| 1024 | return phydev; |
| 1025 | } |
Hannes Schmelzer | da49460 | 2017-03-23 15:11:43 +0100 | [diff] [blame] | 1026 | #endif |
Siva Durga Prasad Paladugu | 03f937a | 2018-11-27 11:49:10 +0530 | [diff] [blame] | 1027 | |
| 1028 | #ifdef CONFIG_DM_ETH |
| 1029 | struct phy_device *phy_connect(struct mii_dev *bus, int addr, |
| 1030 | struct udevice *dev, |
| 1031 | phy_interface_t interface) |
| 1032 | #else |
| 1033 | struct phy_device *phy_connect(struct mii_dev *bus, int addr, |
| 1034 | struct eth_device *dev, |
| 1035 | phy_interface_t interface) |
| 1036 | #endif |
| 1037 | { |
| 1038 | struct phy_device *phydev = NULL; |
Priyanka Jain | 11691fd | 2019-11-05 04:05:11 +0000 | [diff] [blame] | 1039 | uint mask = (addr >= 0) ? (1 << addr) : 0xffffffff; |
Siva Durga Prasad Paladugu | 03f937a | 2018-11-27 11:49:10 +0530 | [diff] [blame] | 1040 | |
| 1041 | #ifdef CONFIG_PHY_FIXED |
| 1042 | phydev = phy_connect_fixed(bus, dev, interface); |
| 1043 | #endif |
Samuel Mendoza-Jonas | b069c4a | 2019-06-18 11:37:18 +1000 | [diff] [blame] | 1044 | |
| 1045 | #ifdef CONFIG_PHY_NCSI |
| 1046 | if (!phydev) |
| 1047 | phydev = phy_device_create(bus, 0, PHY_NCSI_ID, false, interface); |
| 1048 | #endif |
| 1049 | |
Siva Durga Prasad Paladugu | d5c4e1e | 2018-11-27 11:49:11 +0530 | [diff] [blame] | 1050 | #ifdef CONFIG_PHY_XILINX_GMII2RGMII |
| 1051 | if (!phydev) |
| 1052 | phydev = phy_connect_gmii2rgmii(bus, dev, interface); |
| 1053 | #endif |
Siva Durga Prasad Paladugu | 03f937a | 2018-11-27 11:49:10 +0530 | [diff] [blame] | 1054 | |
Mario Six | 7757743 | 2018-01-15 11:08:27 +0100 | [diff] [blame] | 1055 | if (!phydev) |
Hannes Schmelzer | 02505e9 | 2019-03-29 09:54:05 +0100 | [diff] [blame] | 1056 | phydev = phy_find_by_mask(bus, mask, interface); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1057 | |
Troy Kisky | 9519bc5 | 2012-10-22 16:40:43 +0000 | [diff] [blame] | 1058 | if (phydev) |
| 1059 | phy_connect_dev(phydev, dev); |
| 1060 | else |
| 1061 | printf("Could not get PHY for %s: addr %d\n", bus->name, addr); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1062 | return phydev; |
| 1063 | } |
| 1064 | |
Timur Tabi | 251180b | 2012-07-05 10:33:18 +0000 | [diff] [blame] | 1065 | /* |
| 1066 | * Start the PHY. Returns 0 on success, or a negative error code. |
| 1067 | */ |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1068 | int phy_startup(struct phy_device *phydev) |
| 1069 | { |
| 1070 | if (phydev->drv->startup) |
Timur Tabi | 251180b | 2012-07-05 10:33:18 +0000 | [diff] [blame] | 1071 | return phydev->drv->startup(phydev); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1072 | |
| 1073 | return 0; |
| 1074 | } |
| 1075 | |
Jeroen Hofstee | e4f8947 | 2014-10-08 22:57:26 +0200 | [diff] [blame] | 1076 | __weak int board_phy_config(struct phy_device *phydev) |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1077 | { |
Troy Kisky | 8584641 | 2012-02-07 14:08:49 +0000 | [diff] [blame] | 1078 | if (phydev->drv->config) |
| 1079 | return phydev->drv->config(phydev); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1080 | return 0; |
| 1081 | } |
| 1082 | |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1083 | int phy_config(struct phy_device *phydev) |
| 1084 | { |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1085 | /* Invoke an optional board-specific helper */ |
Michal Simek | 24ce232 | 2016-05-18 14:37:23 +0200 | [diff] [blame] | 1086 | return board_phy_config(phydev); |
Andy Fleming | aecf6fc | 2011-04-08 02:10:27 -0500 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | int phy_shutdown(struct phy_device *phydev) |
| 1090 | { |
| 1091 | if (phydev->drv->shutdown) |
| 1092 | phydev->drv->shutdown(phydev); |
| 1093 | |
| 1094 | return 0; |
| 1095 | } |
Simon Glass | dbad346 | 2015-04-05 16:07:39 -0600 | [diff] [blame] | 1096 | |
| 1097 | int phy_get_interface_by_name(const char *str) |
| 1098 | { |
| 1099 | int i; |
| 1100 | |
| 1101 | for (i = 0; i < PHY_INTERFACE_MODE_COUNT; i++) { |
| 1102 | if (!strcmp(str, phy_interface_strings[i])) |
| 1103 | return i; |
| 1104 | } |
| 1105 | |
| 1106 | return -1; |
| 1107 | } |