1// SPDX-License-Identifier: BSD-3-Clause 2/* 3 * Copyright (c) 2024-2025, Qualcomm Innovation Center, Inc. All rights reserved. 4 */ 5 6/dts-v1/; 7 8#include <dt-bindings/gpio/gpio.h> 9#include <dt-bindings/sound/qcom,q6afe.h> 10#include <dt-bindings/regulator/qcom,rpmh-regulator.h> 11 12#include "lemans.dtsi" 13#include "lemans-pmics.dtsi" 14 15/ { 16 model = "Qualcomm Technologies, Inc. Lemans EVK"; 17 compatible = "qcom,lemans-evk", "qcom,qcs9100", "qcom,sa8775p"; 18 19 aliases { 20 ethernet0 = ðernet0; 21 mmc1 = &sdhc; 22 serial0 = &uart10; 23 }; 24 25 dmic: audio-codec-0 { 26 compatible = "dmic-codec"; 27 #sound-dai-cells = <0>; 28 num-channels = <1>; 29 }; 30 31 max98357a: audio-codec-1 { 32 compatible = "maxim,max98357a"; 33 #sound-dai-cells = <0>; 34 }; 35 36 chosen { 37 stdout-path = "serial0:115200n8"; 38 }; 39 40 edp0-connector { 41 compatible = "dp-connector"; 42 label = "EDP0"; 43 type = "mini"; 44 45 port { 46 edp0_connector_in: endpoint { 47 remote-endpoint = <&mdss0_dp0_out>; 48 }; 49 }; 50 }; 51 52 edp1-connector { 53 compatible = "dp-connector"; 54 label = "EDP1"; 55 type = "mini"; 56 57 port { 58 edp1_connector_in: endpoint { 59 remote-endpoint = <&mdss0_dp1_out>; 60 }; 61 }; 62 }; 63 64 sound { 65 compatible = "qcom,qcs9100-sndcard"; 66 model = "LEMANS-EVK"; 67 68 pinctrl-0 = <&hs0_mi2s_active>, <&hs2_mi2s_active>; 69 pinctrl-names = "default"; 70 71 hs0-mi2s-playback-dai-link { 72 link-name = "HS0 MI2S Playback"; 73 74 codec { 75 sound-dai = <&max98357a>; 76 }; 77 78 cpu { 79 sound-dai = <&q6apmbedai PRIMARY_MI2S_RX>; 80 }; 81 82 platform { 83 sound-dai = <&q6apm>; 84 }; 85 }; 86 87 hs2-mi2s-capture-dai-link { 88 link-name = "HS2 MI2S Capture"; 89 90 codec { 91 sound-dai = <&dmic>; 92 }; 93 94 cpu { 95 sound-dai = <&q6apmbedai TERTIARY_MI2S_TX>; 96 }; 97 98 platform { 99 sound-dai = <&q6apm>; 100 }; 101 }; 102 }; 103 104 vmmc_sdc: regulator-vmmc-sdc { 105 compatible = "regulator-fixed"; 106 107 regulator-name = "vmmc_sdc"; 108 regulator-min-microvolt = <2950000>; 109 regulator-max-microvolt = <2950000>; 110 }; 111 112 vreg_sdc: regulator-vreg-sdc { 113 compatible = "regulator-gpio"; 114 115 regulator-name = "vreg_sdc"; 116 regulator-type = "voltage"; 117 regulator-min-microvolt = <1800000>; 118 regulator-max-microvolt = <2950000>; 119 120 gpios = <&expander1 7 GPIO_ACTIVE_HIGH>; 121 states = <1800000 1>, <2950000 0>; 122 123 startup-delay-us = <100>; 124 }; 125}; 126 127&apps_rsc { 128 regulators-0 { 129 compatible = "qcom,pmm8654au-rpmh-regulators"; 130 qcom,pmic-id = "a"; 131 132 vreg_s4a: smps4 { 133 regulator-name = "vreg_s4a"; 134 regulator-min-microvolt = <1800000>; 135 regulator-max-microvolt = <1816000>; 136 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 137 }; 138 139 vreg_s5a: smps5 { 140 regulator-name = "vreg_s5a"; 141 regulator-min-microvolt = <1850000>; 142 regulator-max-microvolt = <1996000>; 143 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 144 }; 145 146 vreg_s9a: smps9 { 147 regulator-name = "vreg_s9a"; 148 regulator-min-microvolt = <535000>; 149 regulator-max-microvolt = <1120000>; 150 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 151 }; 152 153 vreg_l4a: ldo4 { 154 regulator-name = "vreg_l4a"; 155 regulator-min-microvolt = <788000>; 156 regulator-max-microvolt = <1050000>; 157 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 158 regulator-allow-set-load; 159 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 160 RPMH_REGULATOR_MODE_HPM>; 161 }; 162 163 vreg_l5a: ldo5 { 164 regulator-name = "vreg_l5a"; 165 regulator-min-microvolt = <870000>; 166 regulator-max-microvolt = <950000>; 167 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 168 regulator-allow-set-load; 169 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 170 RPMH_REGULATOR_MODE_HPM>; 171 }; 172 173 vreg_l6a: ldo6 { 174 regulator-name = "vreg_l6a"; 175 regulator-min-microvolt = <870000>; 176 regulator-max-microvolt = <970000>; 177 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 178 regulator-allow-set-load; 179 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 180 RPMH_REGULATOR_MODE_HPM>; 181 }; 182 183 vreg_l7a: ldo7 { 184 regulator-name = "vreg_l7a"; 185 regulator-min-microvolt = <720000>; 186 regulator-max-microvolt = <950000>; 187 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 188 regulator-allow-set-load; 189 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 190 RPMH_REGULATOR_MODE_HPM>; 191 }; 192 193 vreg_l8a: ldo8 { 194 regulator-name = "vreg_l8a"; 195 regulator-min-microvolt = <2504000>; 196 regulator-max-microvolt = <3300000>; 197 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 198 regulator-allow-set-load; 199 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 200 RPMH_REGULATOR_MODE_HPM>; 201 }; 202 203 vreg_l9a: ldo9 { 204 regulator-name = "vreg_l9a"; 205 regulator-min-microvolt = <2970000>; 206 regulator-max-microvolt = <3544000>; 207 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 208 regulator-allow-set-load; 209 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 210 RPMH_REGULATOR_MODE_HPM>; 211 }; 212 }; 213 214 regulators-1 { 215 compatible = "qcom,pmm8654au-rpmh-regulators"; 216 qcom,pmic-id = "c"; 217 218 vreg_l1c: ldo1 { 219 regulator-name = "vreg_l1c"; 220 regulator-min-microvolt = <1140000>; 221 regulator-max-microvolt = <1260000>; 222 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 223 regulator-allow-set-load; 224 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 225 RPMH_REGULATOR_MODE_HPM>; 226 }; 227 228 vreg_l2c: ldo2 { 229 regulator-name = "vreg_l2c"; 230 regulator-min-microvolt = <900000>; 231 regulator-max-microvolt = <1100000>; 232 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 233 regulator-allow-set-load; 234 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 235 RPMH_REGULATOR_MODE_HPM>; 236 }; 237 238 vreg_l3c: ldo3 { 239 regulator-name = "vreg_l3c"; 240 regulator-min-microvolt = <1100000>; 241 regulator-max-microvolt = <1300000>; 242 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 243 regulator-allow-set-load; 244 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 245 RPMH_REGULATOR_MODE_HPM>; 246 }; 247 248 vreg_l4c: ldo4 { 249 regulator-name = "vreg_l4c"; 250 regulator-min-microvolt = <1200000>; 251 regulator-max-microvolt = <1200000>; 252 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 253 regulator-allow-set-load; 254 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 255 RPMH_REGULATOR_MODE_HPM>; 256 }; 257 258 vreg_l5c: ldo5 { 259 regulator-name = "vreg_l5c"; 260 regulator-min-microvolt = <1100000>; 261 regulator-max-microvolt = <1300000>; 262 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 263 regulator-allow-set-load; 264 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 265 RPMH_REGULATOR_MODE_HPM>; 266 }; 267 268 vreg_l6c: ldo6 { 269 regulator-name = "vreg_l6c"; 270 regulator-min-microvolt = <1620000>; 271 regulator-max-microvolt = <1980000>; 272 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 273 regulator-allow-set-load; 274 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 275 RPMH_REGULATOR_MODE_HPM>; 276 }; 277 278 vreg_l7c: ldo7 { 279 regulator-name = "vreg_l7c"; 280 regulator-min-microvolt = <1620000>; 281 regulator-max-microvolt = <2000000>; 282 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 283 regulator-allow-set-load; 284 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 285 RPMH_REGULATOR_MODE_HPM>; 286 }; 287 288 vreg_l8c: ldo8 { 289 regulator-name = "vreg_l8c"; 290 regulator-min-microvolt = <2400000>; 291 regulator-max-microvolt = <3300000>; 292 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 293 regulator-allow-set-load; 294 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 295 RPMH_REGULATOR_MODE_HPM>; 296 }; 297 298 vreg_l9c: ldo9 { 299 regulator-name = "vreg_l9c"; 300 regulator-min-microvolt = <1650000>; 301 regulator-max-microvolt = <2700000>; 302 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 303 regulator-allow-set-load; 304 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 305 RPMH_REGULATOR_MODE_HPM>; 306 }; 307 }; 308 309 regulators-2 { 310 compatible = "qcom,pmm8654au-rpmh-regulators"; 311 qcom,pmic-id = "e"; 312 313 vreg_s4e: smps4 { 314 regulator-name = "vreg_s4e"; 315 regulator-min-microvolt = <970000>; 316 regulator-max-microvolt = <1520000>; 317 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 318 }; 319 320 vreg_s7e: smps7 { 321 regulator-name = "vreg_s7e"; 322 regulator-min-microvolt = <1010000>; 323 regulator-max-microvolt = <1170000>; 324 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 325 }; 326 327 vreg_s9e: smps9 { 328 regulator-name = "vreg_s9e"; 329 regulator-min-microvolt = <300000>; 330 regulator-max-microvolt = <570000>; 331 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 332 }; 333 334 vreg_l6e: ldo6 { 335 regulator-name = "vreg_l6e"; 336 regulator-min-microvolt = <1280000>; 337 regulator-max-microvolt = <1450000>; 338 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 339 regulator-allow-set-load; 340 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 341 RPMH_REGULATOR_MODE_HPM>; 342 }; 343 344 vreg_l8e: ldo8 { 345 regulator-name = "vreg_l8e"; 346 regulator-min-microvolt = <1800000>; 347 regulator-max-microvolt = <1950000>; 348 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 349 regulator-allow-set-load; 350 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 351 RPMH_REGULATOR_MODE_HPM>; 352 }; 353 }; 354}; 355 356ðernet0 { 357 phy-handle = <&hsgmii_phy0>; 358 phy-mode = "2500base-x"; 359 360 pinctrl-0 = <ðernet0_default>; 361 pinctrl-names = "default"; 362 363 snps,mtl-rx-config = <&mtl_rx_setup>; 364 snps,mtl-tx-config = <&mtl_tx_setup>; 365 366 nvmem-cells = <&mac_addr0>; 367 nvmem-cell-names = "mac-address"; 368 369 status = "okay"; 370 371 mdio { 372 compatible = "snps,dwmac-mdio"; 373 #address-cells = <1>; 374 #size-cells = <0>; 375 376 hsgmii_phy0: ethernet-phy@1c { 377 compatible = "ethernet-phy-id004d.d101"; 378 reg = <0x1c>; 379 reset-gpios = <&pmm8654au_2_gpios 8 GPIO_ACTIVE_LOW>; 380 reset-assert-us = <11000>; 381 reset-deassert-us = <70000>; 382 }; 383 }; 384 385 mtl_rx_setup: rx-queues-config { 386 snps,rx-queues-to-use = <4>; 387 snps,rx-sched-sp; 388 389 queue0 { 390 snps,dcb-algorithm; 391 snps,map-to-dma-channel = <0x0>; 392 snps,route-up; 393 snps,priority = <0x1>; 394 }; 395 396 queue1 { 397 snps,dcb-algorithm; 398 snps,map-to-dma-channel = <0x1>; 399 snps,route-ptp; 400 }; 401 402 queue2 { 403 snps,avb-algorithm; 404 snps,map-to-dma-channel = <0x2>; 405 snps,route-avcp; 406 }; 407 408 queue3 { 409 snps,avb-algorithm; 410 snps,map-to-dma-channel = <0x3>; 411 snps,priority = <0xc>; 412 }; 413 }; 414 415 mtl_tx_setup: tx-queues-config { 416 snps,tx-queues-to-use = <4>; 417 418 queue0 { 419 snps,dcb-algorithm; 420 }; 421 422 queue1 { 423 snps,dcb-algorithm; 424 }; 425 426 queue2 { 427 snps,avb-algorithm; 428 snps,send_slope = <0x1000>; 429 snps,idle_slope = <0x1000>; 430 snps,high_credit = <0x3e800>; 431 snps,low_credit = <0xffc18000>; 432 }; 433 434 queue3 { 435 snps,avb-algorithm; 436 snps,send_slope = <0x1000>; 437 snps,idle_slope = <0x1000>; 438 snps,high_credit = <0x3e800>; 439 snps,low_credit = <0xffc18000>; 440 }; 441 }; 442}; 443 444&gpi_dma0 { 445 status = "okay"; 446}; 447 448&gpi_dma1 { 449 status = "okay"; 450}; 451 452&gpi_dma2 { 453 status = "okay"; 454}; 455 456&i2c18 { 457 status = "okay"; 458 459 expander0: gpio@38 { 460 compatible = "ti,tca9538"; 461 reg = <0x38>; 462 #gpio-cells = <2>; 463 gpio-controller; 464 }; 465 466 expander1: gpio@39 { 467 compatible = "ti,tca9538"; 468 reg = <0x39>; 469 #gpio-cells = <2>; 470 gpio-controller; 471 }; 472 473 expander2: gpio@3a { 474 compatible = "ti,tca9538"; 475 reg = <0x3a>; 476 #gpio-cells = <2>; 477 gpio-controller; 478 }; 479 480 expander3: gpio@3b { 481 compatible = "ti,tca9538"; 482 reg = <0x3b>; 483 #gpio-cells = <2>; 484 gpio-controller; 485 }; 486 487 eeprom@50 { 488 compatible = "giantec,gt24c256c", "atmel,24c256"; 489 reg = <0x50>; 490 pagesize = <64>; 491 492 nvmem-layout { 493 compatible = "fixed-layout"; 494 #address-cells = <1>; 495 #size-cells = <1>; 496 497 mac_addr0: mac-addr@0 { 498 reg = <0x0 0x6>; 499 }; 500 }; 501 }; 502}; 503 504&iris { 505 firmware-name = "qcom/vpu/vpu30_p4_s6_16mb.mbn"; 506 507 status = "okay"; 508}; 509 510&mdss0 { 511 status = "okay"; 512}; 513 514&mdss0_dp0 { 515 pinctrl-0 = <&dp0_hot_plug_det>; 516 pinctrl-names = "default"; 517 518 status = "okay"; 519}; 520 521&mdss0_dp0_out { 522 data-lanes = <0 1 2 3>; 523 link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>; 524 525 remote-endpoint = <&edp0_connector_in>; 526}; 527 528&mdss0_dp0_phy { 529 vdda-phy-supply = <&vreg_l1c>; 530 vdda-pll-supply = <&vreg_l4a>; 531 532 status = "okay"; 533}; 534 535&mdss0_dp1 { 536 pinctrl-0 = <&dp1_hot_plug_det>; 537 pinctrl-names = "default"; 538 539 status = "okay"; 540}; 541 542&mdss0_dp1_out { 543 data-lanes = <0 1 2 3>; 544 link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>; 545 546 remote-endpoint = <&edp1_connector_in>; 547}; 548 549&mdss0_dp1_phy { 550 vdda-phy-supply = <&vreg_l1c>; 551 vdda-pll-supply = <&vreg_l4a>; 552 553 status = "okay"; 554}; 555 556&pcie0 { 557 perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>; 558 wake-gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>; 559 560 pinctrl-0 = <&pcie0_default_state>; 561 pinctrl-names = "default"; 562 563 status = "okay"; 564}; 565 566&pcie0_phy { 567 vdda-phy-supply = <&vreg_l5a>; 568 vdda-pll-supply = <&vreg_l1c>; 569 570 status = "okay"; 571}; 572 573&pcie1 { 574 perst-gpios = <&tlmm 4 GPIO_ACTIVE_LOW>; 575 wake-gpios = <&tlmm 5 GPIO_ACTIVE_HIGH>; 576 577 pinctrl-0 = <&pcie1_default_state>; 578 pinctrl-names = "default"; 579 580 status = "okay"; 581}; 582 583&pcie1_phy { 584 vdda-phy-supply = <&vreg_l5a>; 585 vdda-pll-supply = <&vreg_l1c>; 586 587 status = "okay"; 588}; 589 590&qupv3_id_0 { 591 status = "okay"; 592}; 593 594&qupv3_id_1 { 595 status = "okay"; 596}; 597 598&qupv3_id_2 { 599 status = "okay"; 600}; 601 602&remoteproc_adsp { 603 firmware-name = "qcom/sa8775p/adsp.mbn"; 604 605 status = "okay"; 606}; 607 608&remoteproc_cdsp0 { 609 firmware-name = "qcom/sa8775p/cdsp0.mbn"; 610 611 status = "okay"; 612}; 613 614&remoteproc_cdsp1 { 615 firmware-name = "qcom/sa8775p/cdsp1.mbn"; 616 617 status = "okay"; 618}; 619 620&remoteproc_gpdsp0 { 621 firmware-name = "qcom/sa8775p/gpdsp0.mbn"; 622 623 status = "okay"; 624}; 625 626&remoteproc_gpdsp1 { 627 firmware-name = "qcom/sa8775p/gpdsp1.mbn"; 628 629 status = "okay"; 630}; 631 632&sdhc { 633 vmmc-supply = <&vmmc_sdc>; 634 vqmmc-supply = <&vreg_sdc>; 635 636 pinctrl-0 = <&sdc_default>, <&sd_cd>; 637 pinctrl-1 = <&sdc_sleep>, <&sd_cd>; 638 pinctrl-names = "default", "sleep"; 639 640 bus-width = <4>; 641 cd-gpios = <&tlmm 36 GPIO_ACTIVE_LOW>; 642 no-mmc; 643 no-sdio; 644 645 status = "okay"; 646}; 647 648&serdes0 { 649 phy-supply = <&vreg_l5a>; 650 651 status = "okay"; 652}; 653 654&sleep_clk { 655 clock-frequency = <32768>; 656}; 657 658&tlmm { 659 ethernet0_default: ethernet0-default-state { 660 ethernet0_mdc: ethernet0-mdc-pins { 661 pins = "gpio8"; 662 function = "emac0_mdc"; 663 drive-strength = <16>; 664 bias-pull-up; 665 }; 666 667 ethernet0_mdio: ethernet0-mdio-pins { 668 pins = "gpio9"; 669 function = "emac0_mdio"; 670 drive-strength = <16>; 671 bias-pull-up; 672 }; 673 }; 674 675 pcie0_default_state: pcie0-default-state { 676 clkreq-pins { 677 pins = "gpio1"; 678 function = "pcie0_clkreq"; 679 drive-strength = <2>; 680 bias-pull-up; 681 }; 682 683 perst-pins { 684 pins = "gpio2"; 685 function = "gpio"; 686 drive-strength = <2>; 687 bias-pull-up; 688 }; 689 690 wake-pins { 691 pins = "gpio0"; 692 function = "gpio"; 693 drive-strength = <2>; 694 bias-pull-up; 695 }; 696 }; 697 698 pcie1_default_state: pcie1-default-state { 699 clkreq-pins { 700 pins = "gpio3"; 701 function = "pcie1_clkreq"; 702 drive-strength = <2>; 703 bias-pull-up; 704 }; 705 706 perst-pins { 707 pins = "gpio4"; 708 function = "gpio"; 709 drive-strength = <2>; 710 bias-pull-up; 711 }; 712 713 wake-pins { 714 pins = "gpio5"; 715 function = "gpio"; 716 drive-strength = <2>; 717 bias-pull-up; 718 }; 719 }; 720 721 sd_cd: sd-cd-state { 722 pins = "gpio36"; 723 function = "gpio"; 724 bias-pull-up; 725 }; 726}; 727 728&uart10 { 729 compatible = "qcom,geni-debug-uart"; 730 pinctrl-0 = <&qup_uart10_default>; 731 pinctrl-names = "default"; 732 733 status = "okay"; 734}; 735 736&ufs_mem_hc { 737 reset-gpios = <&tlmm 149 GPIO_ACTIVE_LOW>; 738 vcc-supply = <&vreg_l8a>; 739 vcc-max-microamp = <1100000>; 740 vccq-supply = <&vreg_l4c>; 741 vccq-max-microamp = <1200000>; 742 743 status = "okay"; 744}; 745 746&ufs_mem_phy { 747 vdda-phy-supply = <&vreg_l4a>; 748 vdda-pll-supply = <&vreg_l1c>; 749 750 status = "okay"; 751}; 752 753&usb_0 { 754 dr_mode = "peripheral"; 755 756 status = "okay"; 757}; 758 759&usb_0_hsphy { 760 vdda-pll-supply = <&vreg_l7a>; 761 vdda18-supply = <&vreg_l6c>; 762 vdda33-supply = <&vreg_l9a>; 763 764 status = "okay"; 765}; 766 767&usb_0_qmpphy { 768 vdda-phy-supply = <&vreg_l1c>; 769 vdda-pll-supply = <&vreg_l7a>; 770 771 status = "okay"; 772}; 773 774&xo_board_clk { 775 clock-frequency = <38400000>; 776}; 777