1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2018 Emmanuel Vadot <manu@freebsd.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/param.h> 29 #include <sys/systm.h> 30 #include <sys/bus.h> 31 #include <sys/kernel.h> 32 #include <sys/module.h> 33 #include <sys/socket.h> 34 35 #include <machine/bus.h> 36 37 #include <net/if.h> 38 #include <net/if_media.h> 39 40 #include <dev/mii/miivar.h> 41 42 #include <dev/ofw/ofw_bus.h> 43 #include <dev/ofw/ofw_bus_subr.h> 44 45 #include <dev/extres/clk/clk.h> 46 #include <dev/extres/hwreset/hwreset.h> 47 #include <dev/extres/regulator/regulator.h> 48 #include <dev/extres/syscon/syscon.h> 49 50 #include <dev/dwc/if_dwcvar.h> 51 #include <dev/dwc/dwc1000_reg.h> 52 53 #include "if_dwc_if.h" 54 #include "syscon_if.h" 55 56 #define RK3328_GRF_MAC_CON0 0x0900 57 #define MAC_CON0_GMAC2IO_TX_DL_CFG_MASK 0x7F 58 #define MAC_CON0_GMAC2IO_TX_DL_CFG_SHIFT 0 59 #define MAC_CON0_GMAC2IO_RX_DL_CFG_MASK 0x7F 60 #define MAC_CON0_GMAC2IO_RX_DL_CFG_SHIFT 7 61 62 #define RK3328_GRF_MAC_CON1 0x0904 63 #define MAC_CON1_GMAC2IO_GMAC_TXCLK_DLY_ENA (1 << 0) 64 #define MAC_CON1_GMAC2IO_GMAC_RXCLK_DLY_ENA (1 << 1) 65 #define MAC_CON1_GMAC2IO_GMII_CLK_SEL_MASK (3 << 11) 66 #define MAC_CON1_GMAC2IO_GMII_CLK_SEL_125 (0 << 11) 67 #define MAC_CON1_GMAC2IO_GMII_CLK_SEL_25 (3 << 11) 68 #define MAC_CON1_GMAC2IO_GMII_CLK_SEL_2_5 (2 << 11) 69 #define MAC_CON1_GMAC2IO_RMII_MODE_MASK (1 << 9) 70 #define MAC_CON1_GMAC2IO_RMII_MODE (1 << 9) 71 #define MAC_CON1_GMAC2IO_INTF_SEL_MASK (7 << 4) 72 #define MAC_CON1_GMAC2IO_INTF_RMII (4 << 4) 73 #define MAC_CON1_GMAC2IO_INTF_RGMII (1 << 4) 74 #define MAC_CON1_GMAC2IO_RMII_CLK_SEL_MASK (1 << 7) 75 #define MAC_CON1_GMAC2IO_RMII_CLK_SEL_25 (1 << 7) 76 #define MAC_CON1_GMAC2IO_RMII_CLK_SEL_2_5 (0 << 7) 77 #define MAC_CON1_GMAC2IO_MAC_SPEED_MASK (1 << 2) 78 #define MAC_CON1_GMAC2IO_MAC_SPEED_100 (1 << 2) 79 #define MAC_CON1_GMAC2IO_MAC_SPEED_10 (0 << 2) 80 #define RK3328_GRF_MAC_CON2 0x0908 81 #define RK3328_GRF_MACPHY_CON0 0x0B00 82 #define MACPHY_CON0_CLK_50M_MASK (1 << 14) 83 #define MACPHY_CON0_CLK_50M (1 << 14) 84 #define MACPHY_CON0_RMII_MODE_MASK (3 << 6) 85 #define MACPHY_CON0_RMII_MODE (1 << 6) 86 #define RK3328_GRF_MACPHY_CON1 0x0B04 87 #define MACPHY_CON1_RMII_MODE_MASK (1 << 9) 88 #define MACPHY_CON1_RMII_MODE (1 << 9) 89 #define RK3328_GRF_MACPHY_CON2 0x0B08 90 #define RK3328_GRF_MACPHY_CON3 0x0B0C 91 #define RK3328_GRF_MACPHY_STATUS 0x0B10 92 93 #define RK3399_GRF_SOC_CON5 0xc214 94 #define SOC_CON5_GMAC_CLK_SEL_MASK (3 << 4) 95 #define SOC_CON5_GMAC_CLK_SEL_125 (0 << 4) 96 #define SOC_CON5_GMAC_CLK_SEL_25 (3 << 4) 97 #define SOC_CON5_GMAC_CLK_SEL_2_5 (2 << 4) 98 #define RK3399_GRF_SOC_CON6 0xc218 99 #define SOC_CON6_GMAC_TXCLK_DLY_ENA (1 << 7) 100 #define SOC_CON6_TX_DL_CFG_MASK 0x7F 101 #define SOC_CON6_TX_DL_CFG_SHIFT 0 102 #define SOC_CON6_RX_DL_CFG_MASK 0x7F 103 #define SOC_CON6_GMAC_RXCLK_DLY_ENA (1 << 15) 104 #define SOC_CON6_RX_DL_CFG_SHIFT 8 105 106 struct if_dwc_rk_softc; 107 108 typedef void (*if_dwc_rk_set_delaysfn_t)(struct if_dwc_rk_softc *); 109 typedef int (*if_dwc_rk_set_speedfn_t)(struct if_dwc_rk_softc *, int); 110 typedef void (*if_dwc_rk_set_phy_modefn_t)(struct if_dwc_rk_softc *); 111 typedef void (*if_dwc_rk_phy_powerupfn_t)(struct if_dwc_rk_softc *); 112 113 struct if_dwc_rk_ops { 114 if_dwc_rk_set_delaysfn_t set_delays; 115 if_dwc_rk_set_speedfn_t set_speed; 116 if_dwc_rk_set_phy_modefn_t set_phy_mode; 117 if_dwc_rk_phy_powerupfn_t phy_powerup; 118 }; 119 120 struct if_dwc_rk_softc { 121 struct dwc_softc base; 122 uint32_t tx_delay; 123 uint32_t rx_delay; 124 bool integrated_phy; 125 bool clock_in; 126 phandle_t phy_node; 127 struct syscon *grf; 128 struct if_dwc_rk_ops *ops; 129 /* Common clocks */ 130 clk_t mac_clk_rx; 131 clk_t mac_clk_tx; 132 clk_t aclk_mac; 133 clk_t pclk_mac; 134 clk_t clk_stmmaceth; 135 clk_t clk_mac_speed; 136 /* RMII clocks */ 137 clk_t clk_mac_ref; 138 clk_t clk_mac_refout; 139 /* PHY clock */ 140 clk_t clk_phy; 141 }; 142 143 static void rk3328_set_delays(struct if_dwc_rk_softc *sc); 144 static int rk3328_set_speed(struct if_dwc_rk_softc *sc, int speed); 145 static void rk3328_set_phy_mode(struct if_dwc_rk_softc *sc); 146 static void rk3328_phy_powerup(struct if_dwc_rk_softc *sc); 147 148 static void rk3399_set_delays(struct if_dwc_rk_softc *sc); 149 static int rk3399_set_speed(struct if_dwc_rk_softc *sc, int speed); 150 151 static struct if_dwc_rk_ops rk3288_ops = { 152 }; 153 154 static struct if_dwc_rk_ops rk3328_ops = { 155 .set_delays = rk3328_set_delays, 156 .set_speed = rk3328_set_speed, 157 .set_phy_mode = rk3328_set_phy_mode, 158 .phy_powerup = rk3328_phy_powerup, 159 }; 160 161 static struct if_dwc_rk_ops rk3399_ops = { 162 .set_delays = rk3399_set_delays, 163 .set_speed = rk3399_set_speed, 164 }; 165 166 static struct ofw_compat_data compat_data[] = { 167 {"rockchip,rk3288-gmac", (uintptr_t)&rk3288_ops}, 168 {"rockchip,rk3328-gmac", (uintptr_t)&rk3328_ops}, 169 {"rockchip,rk3399-gmac", (uintptr_t)&rk3399_ops}, 170 {NULL, 0} 171 }; 172 173 static void 174 rk3328_set_delays(struct if_dwc_rk_softc *sc) 175 { 176 uint32_t reg; 177 uint32_t tx, rx; 178 179 if (!mii_contype_is_rgmii(sc->base.phy_mode)) 180 return; 181 182 reg = SYSCON_READ_4(sc->grf, RK3328_GRF_MAC_CON0); 183 tx = ((reg >> MAC_CON0_GMAC2IO_TX_DL_CFG_SHIFT) & MAC_CON0_GMAC2IO_TX_DL_CFG_MASK); 184 rx = ((reg >> MAC_CON0_GMAC2IO_RX_DL_CFG_SHIFT) & MAC_CON0_GMAC2IO_RX_DL_CFG_MASK); 185 186 reg = SYSCON_READ_4(sc->grf, RK3328_GRF_MAC_CON1); 187 if (bootverbose) { 188 device_printf(sc->base.dev, "current delays settings: tx=%u(%s) rx=%u(%s)\n", 189 tx, ((reg & MAC_CON1_GMAC2IO_GMAC_TXCLK_DLY_ENA) ? "enabled" : "disabled"), 190 rx, ((reg & MAC_CON1_GMAC2IO_GMAC_RXCLK_DLY_ENA) ? "enabled" : "disabled")); 191 192 device_printf(sc->base.dev, "setting new RK3328 RX/TX delays: %d/%d\n", 193 sc->tx_delay, sc->rx_delay); 194 } 195 196 reg = (MAC_CON1_GMAC2IO_GMAC_TXCLK_DLY_ENA | MAC_CON1_GMAC2IO_GMAC_RXCLK_DLY_ENA) << 16; 197 reg |= (MAC_CON1_GMAC2IO_GMAC_TXCLK_DLY_ENA | MAC_CON1_GMAC2IO_GMAC_RXCLK_DLY_ENA); 198 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MAC_CON1, reg); 199 200 reg = 0xffff << 16; 201 reg |= ((sc->tx_delay & MAC_CON0_GMAC2IO_TX_DL_CFG_MASK) << 202 MAC_CON0_GMAC2IO_TX_DL_CFG_SHIFT); 203 reg |= ((sc->rx_delay & MAC_CON0_GMAC2IO_TX_DL_CFG_MASK) << 204 MAC_CON0_GMAC2IO_RX_DL_CFG_SHIFT); 205 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MAC_CON0, reg); 206 } 207 208 static int 209 rk3328_set_speed(struct if_dwc_rk_softc *sc, int speed) 210 { 211 uint32_t reg; 212 213 switch (sc->base.phy_mode) { 214 case MII_CONTYPE_RGMII: 215 case MII_CONTYPE_RGMII_ID: 216 case MII_CONTYPE_RGMII_RXID: 217 case MII_CONTYPE_RGMII_TXID: 218 switch (speed) { 219 case IFM_1000_T: 220 case IFM_1000_SX: 221 reg = MAC_CON1_GMAC2IO_GMII_CLK_SEL_125; 222 break; 223 case IFM_100_TX: 224 reg = MAC_CON1_GMAC2IO_GMII_CLK_SEL_25; 225 break; 226 case IFM_10_T: 227 reg = MAC_CON1_GMAC2IO_GMII_CLK_SEL_2_5; 228 break; 229 default: 230 device_printf(sc->base.dev, "unsupported RGMII media %u\n", speed); 231 return (-1); 232 } 233 234 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MAC_CON1, 235 ((MAC_CON1_GMAC2IO_GMII_CLK_SEL_MASK << 16) | reg)); 236 break; 237 case MII_CONTYPE_RMII: 238 switch (speed) { 239 case IFM_100_TX: 240 reg = MAC_CON1_GMAC2IO_RMII_CLK_SEL_25 | 241 MAC_CON1_GMAC2IO_MAC_SPEED_100; 242 break; 243 case IFM_10_T: 244 reg = MAC_CON1_GMAC2IO_RMII_CLK_SEL_2_5 | 245 MAC_CON1_GMAC2IO_MAC_SPEED_10; 246 break; 247 default: 248 device_printf(sc->base.dev, "unsupported RMII media %u\n", speed); 249 return (-1); 250 } 251 252 SYSCON_WRITE_4(sc->grf, 253 sc->integrated_phy ? RK3328_GRF_MAC_CON2 : RK3328_GRF_MAC_CON1, 254 reg | 255 ((MAC_CON1_GMAC2IO_RMII_CLK_SEL_MASK | MAC_CON1_GMAC2IO_MAC_SPEED_MASK) << 16)); 256 break; 257 } 258 259 return (0); 260 } 261 262 static void 263 rk3328_set_phy_mode(struct if_dwc_rk_softc *sc) 264 { 265 266 switch (sc->base.phy_mode) { 267 case MII_CONTYPE_RGMII: 268 case MII_CONTYPE_RGMII_ID: 269 case MII_CONTYPE_RGMII_RXID: 270 case MII_CONTYPE_RGMII_TXID: 271 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MAC_CON1, 272 ((MAC_CON1_GMAC2IO_INTF_SEL_MASK | MAC_CON1_GMAC2IO_RMII_MODE_MASK) << 16) | 273 MAC_CON1_GMAC2IO_INTF_RGMII); 274 break; 275 case MII_CONTYPE_RMII: 276 SYSCON_WRITE_4(sc->grf, sc->integrated_phy ? RK3328_GRF_MAC_CON2 : RK3328_GRF_MAC_CON1, 277 ((MAC_CON1_GMAC2IO_INTF_SEL_MASK | MAC_CON1_GMAC2IO_RMII_MODE_MASK) << 16) | 278 MAC_CON1_GMAC2IO_INTF_RMII | MAC_CON1_GMAC2IO_RMII_MODE); 279 break; 280 } 281 } 282 283 static void 284 rk3328_phy_powerup(struct if_dwc_rk_softc *sc) 285 { 286 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON1, 287 (MACPHY_CON1_RMII_MODE_MASK << 16) | 288 MACPHY_CON1_RMII_MODE); 289 } 290 291 static void 292 rk3399_set_delays(struct if_dwc_rk_softc *sc) 293 { 294 uint32_t reg, tx, rx; 295 296 if (!mii_contype_is_rgmii(sc->base.phy_mode)) 297 return; 298 299 reg = SYSCON_READ_4(sc->grf, RK3399_GRF_SOC_CON6); 300 tx = ((reg >> SOC_CON6_TX_DL_CFG_SHIFT) & SOC_CON6_TX_DL_CFG_MASK); 301 rx = ((reg >> SOC_CON6_RX_DL_CFG_SHIFT) & SOC_CON6_RX_DL_CFG_MASK); 302 303 if (bootverbose) { 304 device_printf(sc->base.dev, "current delays settings: tx=%u(%s) rx=%u(%s)\n", 305 tx, ((reg & SOC_CON6_GMAC_TXCLK_DLY_ENA) ? "enabled" : "disabled"), 306 rx, ((reg & SOC_CON6_GMAC_RXCLK_DLY_ENA) ? "enabled" : "disabled")); 307 308 device_printf(sc->base.dev, "setting new RK3399 RX/TX delays: %d/%d\n", 309 sc->rx_delay, sc->tx_delay); 310 } 311 312 reg = 0xFFFF << 16; 313 reg |= ((sc->tx_delay & SOC_CON6_TX_DL_CFG_MASK) << 314 SOC_CON6_TX_DL_CFG_SHIFT); 315 reg |= ((sc->rx_delay & SOC_CON6_RX_DL_CFG_MASK) << 316 SOC_CON6_RX_DL_CFG_SHIFT); 317 reg |= SOC_CON6_GMAC_TXCLK_DLY_ENA | SOC_CON6_GMAC_RXCLK_DLY_ENA; 318 319 SYSCON_WRITE_4(sc->grf, RK3399_GRF_SOC_CON6, reg); 320 } 321 322 static int 323 rk3399_set_speed(struct if_dwc_rk_softc *sc, int speed) 324 { 325 uint32_t reg; 326 327 switch (speed) { 328 case IFM_1000_T: 329 case IFM_1000_SX: 330 reg = SOC_CON5_GMAC_CLK_SEL_125; 331 break; 332 case IFM_100_TX: 333 reg = SOC_CON5_GMAC_CLK_SEL_25; 334 break; 335 case IFM_10_T: 336 reg = SOC_CON5_GMAC_CLK_SEL_2_5; 337 break; 338 default: 339 device_printf(sc->base.dev, "unsupported media %u\n", speed); 340 return (-1); 341 } 342 343 SYSCON_WRITE_4(sc->grf, RK3399_GRF_SOC_CON5, 344 ((SOC_CON5_GMAC_CLK_SEL_MASK << 16) | reg)); 345 return (0); 346 } 347 348 static int 349 if_dwc_rk_sysctl_delays(SYSCTL_HANDLER_ARGS) 350 { 351 struct if_dwc_rk_softc *sc; 352 int rv; 353 uint32_t rxtx; 354 355 sc = arg1; 356 rxtx = ((sc->rx_delay << 8) | sc->tx_delay); 357 358 rv = sysctl_handle_int(oidp, &rxtx, 0, req); 359 if (rv != 0 || req->newptr == NULL) 360 return (rv); 361 sc->tx_delay = rxtx & 0xff; 362 sc->rx_delay = (rxtx >> 8) & 0xff; 363 364 if (sc->ops->set_delays) 365 sc->ops->set_delays(sc); 366 367 return (0); 368 } 369 370 static int 371 if_dwc_rk_init_sysctl(struct if_dwc_rk_softc *sc) 372 { 373 struct sysctl_oid *child; 374 struct sysctl_ctx_list *ctx_list; 375 376 ctx_list = device_get_sysctl_ctx(sc->base.dev); 377 child = device_get_sysctl_tree(sc->base.dev); 378 SYSCTL_ADD_PROC(ctx_list, 379 SYSCTL_CHILDREN(child), OID_AUTO, "delays", 380 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, sc, 0, 381 if_dwc_rk_sysctl_delays, "", "RGMII RX/TX delays: ((rx << 8) | tx)"); 382 383 return (0); 384 } 385 386 static int 387 if_dwc_rk_probe(device_t dev) 388 { 389 390 if (!ofw_bus_status_okay(dev)) 391 return (ENXIO); 392 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 393 return (ENXIO); 394 device_set_desc(dev, "Rockchip Gigabit Ethernet Controller"); 395 396 return (BUS_PROBE_DEFAULT); 397 } 398 399 static int 400 if_dwc_rk_init_clocks(device_t dev) 401 { 402 struct if_dwc_rk_softc *sc; 403 404 sc = device_get_softc(dev); 405 406 /* Enable clocks */ 407 408 if (clk_get_by_ofw_name(dev, 0, "mac_clk_tx", &sc->mac_clk_tx) != 0) { 409 device_printf(sc->base.dev, "could not get mac_clk_tx clock\n"); 410 sc->mac_clk_tx = NULL; 411 } 412 413 if (clk_get_by_ofw_name(dev, 0, "aclk_mac", &sc->aclk_mac) != 0) { 414 device_printf(sc->base.dev, "could not get aclk_mac clock\n"); 415 sc->aclk_mac = NULL; 416 } 417 418 if (clk_get_by_ofw_name(dev, 0, "pclk_mac", &sc->pclk_mac) != 0) { 419 device_printf(sc->base.dev, "could not get pclk_mac clock\n"); 420 sc->pclk_mac = NULL; 421 } 422 423 /* Optional clock */ 424 clk_get_by_ofw_name(dev, 0, "clk_mac_speed", &sc->clk_mac_speed); 425 426 if (sc->base.phy_mode == MII_CONTYPE_RMII) { 427 if (clk_get_by_ofw_name(dev, 0, "mac_clk_rx", &sc->mac_clk_rx) != 0) { 428 device_printf(sc->base.dev, "could not get mac_clk_rx clock\n"); 429 sc->mac_clk_rx = NULL; 430 } 431 432 if (clk_get_by_ofw_name(dev, 0, "clk_mac_ref", &sc->clk_mac_ref) != 0) { 433 device_printf(sc->base.dev, "could not get clk_mac_ref clock\n"); 434 sc->clk_mac_ref = NULL; 435 } 436 437 if (!sc->clock_in) { 438 if (clk_get_by_ofw_name(dev, 0, "clk_mac_refout", &sc->clk_mac_refout) != 0) { 439 device_printf(sc->base.dev, "could not get clk_mac_refout clock\n"); 440 sc->clk_mac_refout = NULL; 441 } 442 443 clk_set_freq(sc->clk_stmmaceth, 50000000, 0); 444 } 445 } 446 447 if ((sc->phy_node != 0) && sc->integrated_phy) { 448 if (clk_get_by_ofw_index(dev, sc->phy_node, 0, &sc->clk_phy) != 0) { 449 device_printf(sc->base.dev, "could not get PHY clock\n"); 450 sc->clk_phy = NULL; 451 } 452 453 if (sc->clk_phy) { 454 clk_set_freq(sc->clk_phy, 50000000, 0); 455 } 456 } 457 458 if (sc->base.phy_mode == MII_CONTYPE_RMII) { 459 if (sc->mac_clk_rx) 460 clk_enable(sc->mac_clk_rx); 461 if (sc->clk_mac_ref) 462 clk_enable(sc->clk_mac_ref); 463 if (sc->clk_mac_refout) 464 clk_enable(sc->clk_mac_refout); 465 } 466 if (sc->clk_phy) 467 clk_enable(sc->clk_phy); 468 if (sc->aclk_mac) 469 clk_enable(sc->aclk_mac); 470 if (sc->pclk_mac) 471 clk_enable(sc->pclk_mac); 472 if (sc->mac_clk_tx) 473 clk_enable(sc->mac_clk_tx); 474 if (sc->clk_mac_speed) 475 clk_enable(sc->clk_mac_speed); 476 477 DELAY(50); 478 479 return (0); 480 } 481 482 static int 483 if_dwc_rk_init(device_t dev) 484 { 485 struct if_dwc_rk_softc *sc; 486 phandle_t node; 487 uint32_t rx, tx; 488 int err; 489 pcell_t phy_handle; 490 char *clock_in_out; 491 hwreset_t phy_reset; 492 regulator_t phy_supply; 493 494 sc = device_get_softc(dev); 495 node = ofw_bus_get_node(dev); 496 sc->ops = (struct if_dwc_rk_ops *)ofw_bus_search_compatible(dev, compat_data)->ocd_data; 497 if (OF_hasprop(node, "rockchip,grf") && 498 syscon_get_by_ofw_property(dev, node, 499 "rockchip,grf", &sc->grf) != 0) { 500 device_printf(dev, "cannot get grf driver handle\n"); 501 return (ENXIO); 502 } 503 504 if (OF_getencprop(node, "tx_delay", &tx, sizeof(tx)) <= 0) 505 tx = 0x30; 506 if (OF_getencprop(node, "rx_delay", &rx, sizeof(rx)) <= 0) 507 rx = 0x10; 508 sc->tx_delay = tx; 509 sc->rx_delay = rx; 510 511 sc->clock_in = true; 512 if (OF_getprop_alloc(node, "clock_in_out", (void **)&clock_in_out)) { 513 if (strcmp(clock_in_out, "input") == 0) 514 sc->clock_in = true; 515 else 516 sc->clock_in = false; 517 OF_prop_free(clock_in_out); 518 } 519 520 if (OF_getencprop(node, "phy-handle", (void *)&phy_handle, 521 sizeof(phy_handle)) > 0) 522 sc->phy_node = OF_node_from_xref(phy_handle); 523 524 if (sc->phy_node) 525 sc->integrated_phy = OF_hasprop(sc->phy_node, "phy-is-integrated"); 526 527 if (sc->integrated_phy) 528 device_printf(sc->base.dev, "PHY is integrated\n"); 529 530 if_dwc_rk_init_clocks(dev); 531 532 if (sc->ops->set_phy_mode) 533 sc->ops->set_phy_mode(sc); 534 535 if (sc->ops->set_delays) 536 sc->ops->set_delays(sc); 537 538 /* 539 * this also sets delays if tunable is defined 540 */ 541 err = if_dwc_rk_init_sysctl(sc); 542 if (err != 0) 543 return (err); 544 545 if (regulator_get_by_ofw_property(sc->base.dev, 0, 546 "phy-supply", &phy_supply) == 0) { 547 if (regulator_enable(phy_supply)) { 548 device_printf(sc->base.dev, 549 "cannot enable 'phy' regulator\n"); 550 } 551 } 552 else 553 device_printf(sc->base.dev, "no phy-supply property\n"); 554 555 /* Power up */ 556 if (sc->integrated_phy) { 557 if (sc->ops->phy_powerup) 558 sc->ops->phy_powerup(sc); 559 560 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON0, 561 (MACPHY_CON0_CLK_50M_MASK << 16) | 562 MACPHY_CON0_CLK_50M); 563 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON0, 564 (MACPHY_CON0_RMII_MODE_MASK << 16) | 565 MACPHY_CON0_RMII_MODE); 566 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON2, 0xffff1234); 567 SYSCON_WRITE_4(sc->grf, RK3328_GRF_MACPHY_CON3, 0x003f0035); 568 569 if (hwreset_get_by_ofw_idx(dev, sc->phy_node, 0, &phy_reset) == 0) { 570 hwreset_assert(phy_reset); 571 DELAY(20); 572 hwreset_deassert(phy_reset); 573 DELAY(20); 574 } 575 } 576 577 return (0); 578 } 579 580 static int 581 if_dwc_rk_mii_clk(device_t dev) 582 { 583 struct if_dwc_rk_softc *sc; 584 uint64_t freq; 585 int rv; 586 587 sc = device_get_softc(dev); 588 if ((rv = clk_get_freq(sc->pclk_mac, &freq)) != 0) 589 return (-rv); 590 freq = freq / 1000 / 1000; 591 592 if (freq >= 60 && freq <= 100) 593 return (GMAC_MII_CLK_60_100M_DIV42); 594 else if (freq >= 100 && freq <= 150) 595 return (GMAC_MII_CLK_100_150M_DIV62); 596 else if (freq >= 20 && freq <= 35) 597 return (GMAC_MII_CLK_25_35M_DIV16); 598 else if (freq >= 35 && freq <= 60) 599 return (GMAC_MII_CLK_35_60M_DIV26); 600 else if (freq >= 150 && freq <= 250) 601 return (GMAC_MII_CLK_150_250M_DIV102); 602 else if (freq >= 250 && freq <= 300) 603 return (GMAC_MII_CLK_250_300M_DIV124); 604 605 return (-ERANGE); 606 } 607 608 static int 609 if_dwc_rk_set_speed(device_t dev, int speed) 610 { 611 struct if_dwc_rk_softc *sc; 612 613 sc = device_get_softc(dev); 614 615 if (sc->ops->set_speed) 616 return sc->ops->set_speed(sc, speed); 617 618 return (0); 619 } 620 621 static device_method_t if_dwc_rk_methods[] = { 622 DEVMETHOD(device_probe, if_dwc_rk_probe), 623 624 DEVMETHOD(if_dwc_init, if_dwc_rk_init), 625 DEVMETHOD(if_dwc_mii_clk, if_dwc_rk_mii_clk), 626 DEVMETHOD(if_dwc_set_speed, if_dwc_rk_set_speed), 627 628 DEVMETHOD_END 629 }; 630 631 extern driver_t dwc_driver; 632 633 DEFINE_CLASS_1(dwc, dwc_rk_driver, if_dwc_rk_methods, 634 sizeof(struct if_dwc_rk_softc), dwc_driver); 635 DRIVER_MODULE(dwc_rk, simplebus, dwc_rk_driver, 0, 0); 636 MODULE_DEPEND(dwc_rk, dwc, 1, 1, 1); 637