1 /* $NetBSD: rk_gmac.c,v 1.23 2024/08/10 12:16:46 skrll Exp $ */ 2 3 /*- 4 * Copyright (c) 2018 Jared McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 31 __KERNEL_RCSID(0, "$NetBSD: rk_gmac.c,v 1.23 2024/08/10 12:16:46 skrll Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/bus.h> 35 #include <sys/device.h> 36 #include <sys/intr.h> 37 #include <sys/systm.h> 38 #include <sys/gpio.h> 39 #include <sys/rndsource.h> 40 41 #include <net/if.h> 42 #include <net/if_ether.h> 43 #include <net/if_media.h> 44 45 #include <dev/mii/miivar.h> 46 47 #include <dev/ic/dwc_gmac_var.h> 48 #include <dev/ic/dwc_gmac_reg.h> 49 50 #include <dev/fdt/fdtvar.h> 51 #include <dev/fdt/syscon.h> 52 53 #define RK_GMAC_TXDLY_DEFAULT 0x30 54 #define RK_GMAC_RXDLY_DEFAULT 0x10 55 56 enum rk_gmac_type { 57 GMAC_RK3288 = 1, 58 GMAC_RK3328, 59 GMAC_RK3399 60 }; 61 62 static const struct device_compatible_entry compat_data[] = { 63 { .compat = "rockchip,rk3288-gmac", .value = GMAC_RK3288 }, 64 { .compat = "rockchip,rk3328-gmac", .value = GMAC_RK3328 }, 65 { .compat = "rockchip,rk3399-gmac", .value = GMAC_RK3399 }, 66 DEVICE_COMPAT_EOL 67 }; 68 69 struct rk_gmac_softc { 70 struct dwc_gmac_softc sc_base; 71 struct syscon *sc_syscon; 72 enum rk_gmac_type sc_type; 73 }; 74 75 /* 76 * RK3288 specific 77 */ 78 79 #define RK3288_GRF_SOC_CON1 0x0248 80 #define RK3288_GRF_SOC_CON1_RMII_MODE __BIT(14) 81 #define RK3288_GRF_SOC_CON1_GMAC_CLK_SEL __BITS(13,12) 82 #define RK3288_GRF_SOC_CON1_GMAC_CLK_SEL_125M 0 83 #define RK3288_GRF_SOC_CON1_GMAC_CLK_SEL_2_5M 2 84 #define RK3288_GRF_SOC_CON1_GMAC_CLK_SEL_25M 3 85 #define RK3288_GRF_SOC_CON1_RMII_CLK_SEL __BIT(11) 86 #define RK3288_GRF_SOC_CON1_RMII_CLK_SEL_25M 1 87 #define RK3288_GRF_SOC_CON1_RMII_CLK_SEL_2_5M 0 88 #define RK3288_GRF_SOC_CON1_GMAC_SPEED __BIT(10) 89 #define RK3288_GRF_SOC_CON1_GMAC_SPEED_10M 0 90 #define RK3288_GRF_SOC_CON1_GMAC_SPEED_100M 1 91 #define RK3288_GRF_SOC_CON1_GMAC_FLOWCTRL __BIT(9) 92 #define RK3288_GRF_SOC_CON1_GMAC_PHY_INTF_SEL __BITS(8,6) 93 #define RK3288_GRF_SOC_CON1_GMAC_PHY_INTF_SEL_RGMII 1 94 #define RK3288_GRF_SOC_CON1_GMAC_PHY_INTF_SEL_RMII 4 95 96 #define RK3288_GRF_SOC_CON3 0x0250 97 #define RK3288_GRF_SOC_CON3_RXCLK_DLY_ENA_GMAC __BIT(15) 98 #define RK3288_GRF_SOC_CON3_TXCLK_DLY_ENA_GMAC __BIT(14) 99 #define RK3288_GRF_SOC_CON3_CLK_RX_DL_CFG_GMAC __BITS(13,7) 100 #define RK3288_GRF_SOC_CON3_CLK_TX_DL_CFG_GMAC __BITS(6,0) 101 102 static void 103 rk3288_gmac_set_mode_rgmii(struct dwc_gmac_softc *sc, u_int tx_delay, u_int rx_delay, bool set_delay) 104 { 105 struct rk_gmac_softc * const rk_sc = (struct rk_gmac_softc *)sc; 106 uint32_t write_mask, write_val; 107 108 syscon_lock(rk_sc->sc_syscon); 109 110 write_mask = (RK3288_GRF_SOC_CON1_RMII_MODE | 111 RK3288_GRF_SOC_CON1_GMAC_PHY_INTF_SEL) << 16; 112 write_val = __SHIFTIN(RK3288_GRF_SOC_CON1_GMAC_PHY_INTF_SEL_RGMII, 113 RK3288_GRF_SOC_CON1_GMAC_PHY_INTF_SEL); 114 syscon_write_4(rk_sc->sc_syscon, RK3288_GRF_SOC_CON1, 115 write_mask | write_val); 116 117 if (set_delay) { 118 write_mask = (RK3288_GRF_SOC_CON3_RXCLK_DLY_ENA_GMAC | 119 RK3288_GRF_SOC_CON3_TXCLK_DLY_ENA_GMAC | 120 RK3288_GRF_SOC_CON3_CLK_RX_DL_CFG_GMAC | 121 RK3288_GRF_SOC_CON3_CLK_TX_DL_CFG_GMAC) << 16; 122 write_val = 0; 123 if (tx_delay) { 124 write_mask |= RK3288_GRF_SOC_CON3_TXCLK_DLY_ENA_GMAC | 125 __SHIFTIN(tx_delay, 126 RK3288_GRF_SOC_CON3_CLK_TX_DL_CFG_GMAC); 127 } 128 if (rx_delay) { 129 write_mask |= RK3288_GRF_SOC_CON3_RXCLK_DLY_ENA_GMAC | 130 __SHIFTIN(rx_delay, 131 RK3288_GRF_SOC_CON3_CLK_RX_DL_CFG_GMAC); 132 } 133 syscon_write_4(rk_sc->sc_syscon, RK3288_GRF_SOC_CON3, 134 write_mask | write_val); 135 } 136 137 syscon_unlock(rk_sc->sc_syscon); 138 } 139 140 static void 141 rk3288_gmac_set_speed_rgmii(struct dwc_gmac_softc *sc, int speed) 142 { 143 struct rk_gmac_softc * const rk_sc = (struct rk_gmac_softc *)sc; 144 uint32_t write_mask, write_val; 145 146 syscon_lock(rk_sc->sc_syscon); 147 148 write_mask = (RK3288_GRF_SOC_CON1_GMAC_CLK_SEL) << 16; 149 switch (speed) { 150 case IFM_10_T: 151 write_val = RK3288_GRF_SOC_CON1_GMAC_CLK_SEL_2_5M; 152 break; 153 case IFM_100_TX: 154 write_val = RK3288_GRF_SOC_CON1_GMAC_CLK_SEL_25M; 155 break; 156 case IFM_1000_T: 157 default: 158 write_val = RK3288_GRF_SOC_CON1_GMAC_CLK_SEL_125M; 159 break; 160 } 161 syscon_write_4(rk_sc->sc_syscon, RK3288_GRF_SOC_CON1, 162 write_mask | write_val); 163 164 syscon_unlock(rk_sc->sc_syscon); 165 } 166 167 /* 168 * RK3328 specific 169 */ 170 171 #define RK3328_GRF_MAC_CON0 0x0900 172 #define RK3328_GRF_MAC_CON0_RXDLY __BITS(13,7) 173 #define RK3328_GRF_MAC_CON0_TXDLY __BITS(6,0) 174 175 #define RK3328_GRF_MAC_CON1 0x0904 176 #define RK3328_GRF_MAC_CON1_CLKSEL __BITS(12,11) 177 #define RK3328_GRF_MAC_CON1_CLKSEL_125M 0 178 #define RK3328_GRF_MAC_CON1_CLKSEL_2_5M 2 179 #define RK3328_GRF_MAC_CON1_CLKSEL_25M 3 180 #define RK3328_GRF_MAC_CON1_MODE __BIT(9) 181 #define RK3328_GRF_MAC_CON1_SEL __BITS(6,4) 182 #define RK3328_GRF_MAC_CON1_SEL_RGMII 1 183 #define RK3328_GRF_MAC_CON1_RXDLY_EN __BIT(1) 184 #define RK3328_GRF_MAC_CON1_TXDLY_EN __BIT(0) 185 186 static void 187 rk3328_gmac_set_mode_rgmii(struct dwc_gmac_softc *sc, u_int tx_delay, u_int rx_delay, bool set_delay) 188 { 189 struct rk_gmac_softc * const rk_sc = (struct rk_gmac_softc *)sc; 190 uint32_t write_mask, write_val; 191 192 syscon_lock(rk_sc->sc_syscon); 193 194 write_mask = (RK3328_GRF_MAC_CON1_MODE | RK3328_GRF_MAC_CON1_SEL) << 16; 195 write_val = __SHIFTIN(RK3328_GRF_MAC_CON1_SEL_RGMII, 196 RK3328_GRF_MAC_CON1_SEL); 197 syscon_write_4(rk_sc->sc_syscon, RK3328_GRF_MAC_CON1, 198 write_mask | write_val); 199 200 if (set_delay) { 201 write_mask = ( 202 RK3328_GRF_MAC_CON0_TXDLY | 203 RK3328_GRF_MAC_CON0_RXDLY) << 16; 204 write_val = 205 __SHIFTIN(tx_delay, RK3328_GRF_MAC_CON0_TXDLY) | 206 __SHIFTIN(rx_delay, RK3328_GRF_MAC_CON0_RXDLY); 207 syscon_write_4(rk_sc->sc_syscon, RK3328_GRF_MAC_CON0, 208 write_mask | write_val); 209 210 write_mask = ( 211 RK3328_GRF_MAC_CON1_RXDLY_EN | 212 RK3328_GRF_MAC_CON1_TXDLY_EN) << 16; 213 write_val = 214 RK3328_GRF_MAC_CON1_RXDLY_EN | 215 RK3328_GRF_MAC_CON1_TXDLY_EN; 216 syscon_write_4(rk_sc->sc_syscon, RK3328_GRF_MAC_CON1, 217 write_mask | write_val); 218 } 219 220 syscon_unlock(rk_sc->sc_syscon); 221 } 222 223 static void 224 rk3328_gmac_set_speed_rgmii(struct dwc_gmac_softc *sc, int speed) 225 { 226 struct rk_gmac_softc * const rk_sc = (struct rk_gmac_softc *)sc; 227 #if 0 228 u_int clksel; 229 230 switch (speed) { 231 case IFM_10_T: 232 clksel = RK3328_GRF_MAC_CON1_CLKSEL_2_5M; 233 break; 234 case IFM_100_TX: 235 clksel = RK3328_GRF_MAC_CON1_CLKSEL_25M; 236 break; 237 default: 238 clksel = RK3328_GRF_MAC_CON1_CLKSEL_125M; 239 break; 240 } 241 #endif 242 243 syscon_lock(rk_sc->sc_syscon); 244 syscon_write_4(rk_sc->sc_syscon, RK3328_GRF_MAC_CON1, 245 (RK3328_GRF_MAC_CON1_CLKSEL << 16) | 246 __SHIFTIN(RK3328_GRF_MAC_CON1_CLKSEL_125M, RK3328_GRF_MAC_CON1_CLKSEL)); 247 syscon_unlock(rk_sc->sc_syscon); 248 } 249 250 /* 251 * RK3399 specific 252 */ 253 254 #define RK3399_GRF_SOC_CON5 0x0c214 255 #define RK3399_GRF_SOC_CON5_GMAC_PHY_INTF_SEL __BITS(11,9) 256 #define RK3399_GRF_SOC_CON5_GMAC_FLOWCTRL __BIT(8) 257 #define RK3399_GRF_SOC_CON5_GMAC_SPEED __BIT(7) 258 #define RK3399_GRF_SOC_CON5_RMII_MODE __BIT(6) 259 #define RK3399_GRF_SOC_CON5_GMAC_CLK_SEL __BITS(5,4) 260 #define RK3399_GRF_SOC_CON5_GMAC_CLK_SEL_125M 0 261 #define RK3399_GRF_SOC_CON5_GMAC_CLK_SEL_25M 3 262 #define RK3399_GRF_SOC_CON5_GMAC_CLK_SEL_2_5M 2 263 #define RK3399_GRF_SOC_CON5_RMII_CLK_SEL __BIT(3) 264 #define RK3399_GRF_SOC_CON6 0x0c218 265 #define RK3399_GRF_SOC_CON6_GMAC_RXCLK_DLY_ENA __BIT(15) 266 #define RK3399_GRF_SOC_CON6_GMAC_CLK_RX_DL_CFG __BITS(14,8) 267 #define RK3399_GRF_SOC_CON6_GMAC_TXCLK_DLY_ENA __BIT(7) 268 #define RK3399_GRF_SOC_CON6_GMAC_CLK_TX_DL_CFG __BITS(6,0) 269 270 static void 271 rk3399_gmac_set_mode_rgmii(struct dwc_gmac_softc *sc, u_int tx_delay, 272 u_int rx_delay, bool set_delay) 273 { 274 struct rk_gmac_softc * const rk_sc = (struct rk_gmac_softc *)sc; 275 uint32_t write_mask, write_val; 276 277 syscon_lock(rk_sc->sc_syscon); 278 279 write_mask = ( 280 RK3399_GRF_SOC_CON5_RMII_MODE | 281 RK3399_GRF_SOC_CON5_GMAC_PHY_INTF_SEL) << 16; 282 write_val = __SHIFTIN(1, RK3399_GRF_SOC_CON5_GMAC_PHY_INTF_SEL); 283 syscon_write_4(rk_sc->sc_syscon, RK3399_GRF_SOC_CON5, 284 write_mask | write_val); 285 if (set_delay) { 286 write_mask = ( 287 RK3399_GRF_SOC_CON6_GMAC_TXCLK_DLY_ENA | 288 RK3399_GRF_SOC_CON6_GMAC_RXCLK_DLY_ENA | 289 RK3399_GRF_SOC_CON6_GMAC_CLK_RX_DL_CFG | 290 RK3399_GRF_SOC_CON6_GMAC_CLK_TX_DL_CFG) << 16; 291 write_val = 292 (tx_delay ? RK3399_GRF_SOC_CON6_GMAC_TXCLK_DLY_ENA : 0) | 293 (rx_delay ? RK3399_GRF_SOC_CON6_GMAC_RXCLK_DLY_ENA : 0) | 294 __SHIFTIN(rx_delay, RK3399_GRF_SOC_CON6_GMAC_CLK_RX_DL_CFG) | 295 __SHIFTIN(tx_delay, RK3399_GRF_SOC_CON6_GMAC_CLK_TX_DL_CFG); 296 syscon_write_4(rk_sc->sc_syscon, RK3399_GRF_SOC_CON6, 297 write_mask | write_val); 298 } 299 syscon_unlock(rk_sc->sc_syscon); 300 } 301 302 static void 303 rk3399_gmac_set_speed_rgmii(struct dwc_gmac_softc *sc, int speed) 304 { 305 struct rk_gmac_softc * const rk_sc = (struct rk_gmac_softc *)sc; 306 u_int clksel; 307 308 switch (speed) { 309 case IFM_10_T: 310 clksel = RK3399_GRF_SOC_CON5_GMAC_CLK_SEL_2_5M; 311 break; 312 case IFM_100_TX: 313 clksel = RK3399_GRF_SOC_CON5_GMAC_CLK_SEL_25M; 314 break; 315 default: 316 clksel = RK3399_GRF_SOC_CON5_GMAC_CLK_SEL_125M; 317 break; 318 } 319 320 const uint32_t con5_mask = 321 RK3399_GRF_SOC_CON5_GMAC_CLK_SEL << 16; 322 const uint32_t con5 = 323 __SHIFTIN(clksel, RK3399_GRF_SOC_CON5_GMAC_CLK_SEL); 324 325 syscon_lock(rk_sc->sc_syscon); 326 syscon_write_4(rk_sc->sc_syscon, RK3399_GRF_SOC_CON5, con5 | con5_mask); 327 syscon_unlock(rk_sc->sc_syscon); 328 } 329 330 static int 331 rk_gmac_reset(const int phandle) 332 { 333 struct fdtbus_gpio_pin *pin_reset; 334 const u_int *reset_delay_us; 335 bool reset_active_low; 336 int len; 337 338 if (!of_hasprop(phandle, "snps,reset-gpio")) 339 return 0; 340 341 pin_reset = fdtbus_gpio_acquire(phandle, "snps,reset-gpio", GPIO_PIN_OUTPUT); 342 if (pin_reset == NULL) 343 return ENOENT; 344 345 reset_delay_us = fdtbus_get_prop(phandle, "snps,reset-delays-us", &len); 346 if (reset_delay_us == NULL || len != 12) 347 return ENXIO; 348 349 reset_active_low = of_hasprop(phandle, "snps,reset-active-low"); 350 351 fdtbus_gpio_write_raw(pin_reset, reset_active_low ? 1 : 0); 352 delay(be32toh(reset_delay_us[0])); 353 fdtbus_gpio_write_raw(pin_reset, reset_active_low ? 0 : 1); 354 delay(be32toh(reset_delay_us[1])); 355 fdtbus_gpio_write_raw(pin_reset, reset_active_low ? 1 : 0); 356 delay(be32toh(reset_delay_us[2])); 357 358 return 0; 359 } 360 361 static int 362 rk_gmac_intr(void *arg) 363 { 364 return dwc_gmac_intr(arg); 365 } 366 367 static int 368 rk_gmac_setup_clocks(int phandle) 369 { 370 static const char * const clknames[] = { 371 #if 0 372 "stmmaceth", 373 "mac_clk_rx", 374 "mac_clk_tx", 375 "clk_mac_ref", 376 "clk_mac_refout", 377 "aclk_mac", 378 "pclk_mac" 379 #else 380 "stmmaceth", 381 "aclk_mac", 382 "pclk_mac", 383 "mac_clk_tx", 384 "mac_clk_rx" 385 #endif 386 }; 387 static const char * const rstnames[] = { 388 "stmmaceth" 389 }; 390 struct fdtbus_reset *rst; 391 struct clk *clk; 392 int error, n; 393 394 fdtbus_clock_assign(phandle); 395 396 for (n = 0; n < __arraycount(clknames); n++) { 397 clk = fdtbus_clock_get(phandle, clknames[n]); 398 if (clk == NULL) { 399 aprint_error(": couldn't get %s clock\n", clknames[n]); 400 return ENXIO; 401 } 402 error = clk_enable(clk); 403 if (error != 0) { 404 aprint_error(": couldn't enable %s clock: %d\n", 405 clknames[n], error); 406 return error; 407 } 408 } 409 410 for (n = 0; n < __arraycount(rstnames); n++) { 411 rst = fdtbus_reset_get(phandle, rstnames[n]); 412 if (rst == NULL) { 413 aprint_error(": couldn't get %s reset\n", rstnames[n]); 414 return ENXIO; 415 } 416 error = fdtbus_reset_deassert(rst); 417 if (error != 0) { 418 aprint_error(": couldn't de-assert %s reset: %d\n", 419 rstnames[n], error); 420 return error; 421 } 422 } 423 424 delay(5000); 425 426 return 0; 427 } 428 429 static int 430 rk_gmac_match(device_t parent, cfdata_t cf, void *aux) 431 { 432 struct fdt_attach_args * const faa = aux; 433 434 return of_compatible_match(faa->faa_phandle, compat_data); 435 } 436 437 static void 438 rk_gmac_attach(device_t parent, device_t self, void *aux) 439 { 440 struct rk_gmac_softc * const rk_sc = device_private(self); 441 struct dwc_gmac_softc * const sc = &rk_sc->sc_base; 442 struct fdt_attach_args * const faa = aux; 443 const int phandle = faa->faa_phandle; 444 const char *phy_mode; 445 char intrstr[128]; 446 bus_addr_t addr; 447 bus_size_t size; 448 u_int tx_delay, rx_delay; 449 #ifdef notyet 450 bool set_delay = true; 451 #else 452 bool set_delay = false; 453 #endif 454 455 if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) { 456 aprint_error(": couldn't get registers\n"); 457 return; 458 } 459 460 rk_sc->sc_type = of_compatible_lookup(phandle, compat_data)->value; 461 462 rk_sc->sc_syscon = fdtbus_syscon_acquire(phandle, "rockchip,grf"); 463 if (rk_sc->sc_syscon == NULL) { 464 aprint_error(": couldn't get grf syscon\n"); 465 return; 466 } 467 468 if (of_getprop_uint32(phandle, "tx_delay", &tx_delay) != 0) { 469 tx_delay = RK_GMAC_TXDLY_DEFAULT; 470 set_delay = false; 471 } 472 473 if (of_getprop_uint32(phandle, "rx_delay", &rx_delay) != 0) { 474 rx_delay = RK_GMAC_RXDLY_DEFAULT; 475 set_delay = false; 476 } 477 478 sc->sc_dev = self; 479 sc->sc_bst = faa->faa_bst; 480 if (bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh) != 0) { 481 aprint_error(": couldn't map registers\n"); 482 return; 483 } 484 sc->sc_dmat = faa->faa_dmat; 485 486 if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) { 487 aprint_error(": failed to decode interrupt\n"); 488 return; 489 } 490 491 if (rk_gmac_setup_clocks(phandle) != 0) 492 return; 493 494 if (rk_gmac_reset(phandle) != 0) 495 aprint_error_dev(self, "PHY reset failed\n"); 496 497 /* Rock64 seems to need more time for the reset to complete */ 498 delay(100000); 499 500 #if notyet 501 if (of_hasprop(phandle, "snps,force_thresh_dma_mode")) 502 sc->sc_flags |= DWC_GMAC_FORCE_THRESH_DMA_MODE; 503 #endif 504 505 phy_mode = fdtbus_get_string(phandle, "phy-mode"); 506 if (phy_mode == NULL) { 507 aprint_error(": missing 'phy-mode' property\n"); 508 return; 509 } 510 511 switch (rk_sc->sc_type) { 512 case GMAC_RK3288: 513 if (strncmp(phy_mode, "rgmii", 5) == 0) { 514 rk3288_gmac_set_mode_rgmii(sc, tx_delay, rx_delay, 515 set_delay); 516 517 sc->sc_set_speed = rk3288_gmac_set_speed_rgmii; 518 } else { 519 aprint_error(": unsupported phy-mode '%s'\n", phy_mode); 520 return; 521 } 522 break; 523 case GMAC_RK3328: 524 if (strncmp(phy_mode, "rgmii", 5) == 0) { 525 rk3328_gmac_set_mode_rgmii(sc, tx_delay, rx_delay, 526 set_delay); 527 528 sc->sc_set_speed = rk3328_gmac_set_speed_rgmii; 529 } else { 530 aprint_error(": unsupported phy-mode '%s'\n", phy_mode); 531 return; 532 } 533 break; 534 case GMAC_RK3399: 535 if (strncmp(phy_mode, "rgmii", 5) == 0) { 536 rk3399_gmac_set_mode_rgmii(sc, tx_delay, rx_delay, 537 set_delay); 538 539 sc->sc_set_speed = rk3399_gmac_set_speed_rgmii; 540 } else { 541 aprint_error(": unsupported phy-mode '%s'\n", phy_mode); 542 return; 543 } 544 break; 545 } 546 547 aprint_naive("\n"); 548 aprint_normal(": GMAC\n"); 549 550 if (dwc_gmac_attach(sc, MII_PHY_ANY, GMAC_MII_CLK_150_250M_DIV102) != 0) 551 return; 552 553 if (fdtbus_intr_establish_xname(phandle, 0, IPL_NET, 554 FDT_INTR_MPSAFE, rk_gmac_intr, sc, 555 device_xname(self)) == NULL) { 556 aprint_error_dev(self, "failed to establish interrupt on %s\n", intrstr); 557 return; 558 } 559 aprint_normal_dev(self, "interrupting on %s\n", intrstr); 560 } 561 562 CFATTACH_DECL_NEW(rk_gmac, sizeof(struct rk_gmac_softc), 563 rk_gmac_match, rk_gmac_attach, NULL, NULL); 564