Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 | # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2 --- $id: http://devicetree.org/schemas/phy/nvidia,tegra194-xusb-padctl.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: NVIDIA Tegra194 XUSB pad controller maintainers: - Thierry Reding <thierry.reding@gmail.com> - Jon Hunter <jonathanh@nvidia.com> description: | The Tegra XUSB pad controller manages a set of I/O lanes (with differential signals) which connect directly to pins/pads on the SoC package. Each lane is controlled by a HW block referred to as a "pad" in the Tegra hardware documentation. Each such "pad" may control either one or multiple lanes, and thus contains any logic common to all its lanes. Each lane can be separately configured and powered up. Some of the lanes are high-speed lanes, which can be used for PCIe, SATA or super-speed USB. Other lanes are for various types of low-speed, full-speed or high-speed USB (such as UTMI, ULPI and HSIC). The XUSB pad controller contains a software-configurable mux that sits between the I/O controller ports (e.g. PCIe) and the lanes. In addition to per-lane configuration, USB 3.0 ports may require additional settings on a per-board basis. Pads will be represented as children of the top-level XUSB pad controller device tree node. Each lane exposed by the pad will be represented by its own subnode and can be referenced by users of the lane using the standard PHY bindings, as described by the phy-bindings.txt file in this directory. The Tegra hardware documentation refers to the connection between the XUSB pad controller and the XUSB controller as "ports". This is confusing since "port" is typically used to denote the physical USB receptacle. The device tree binding in this document uses the term "port" to refer to the logical abstraction of the signals that are routed to a USB receptacle (i.e. a PHY for the USB signal, the VBUS power supply, the USB 2.0 companion port for USB 3.0 receptacles, ...). properties: compatible: enum: - nvidia,tegra194-xusb-padctl - nvidia,tegra234-xusb-padctl reg: items: - description: pad controller registers - description: AO registers reg-names: items: - const: padctl - const: ao interrupts: items: - description: XUSB pad controller interrupt resets: items: - description: pad controller reset reset-names: items: - const: padctl avdd-usb-supply: description: USB I/Os, VBUS, ID, REXT, D+/D- power supply. Must supply 3.3 V. vclamp-usb-supply: description: Bias rail for USB pad. Must supply 1.8 V. pads: description: A required child node named "pads" contains a list of subnodes, one for each of the pads exposed by the XUSB pad controller. Each pad may need additional resources that can be referenced in its pad node. The "status" property is used to enable or disable the use of a pad. If set to "disabled", the pad will not be used on the given board. In order to use the pad and any of its lanes, this property must be set to "okay" or absent. type: object additionalProperties: false properties: usb2: type: object additionalProperties: false properties: clocks: items: - description: USB2 tracking clock clock-names: items: - const: trk lanes: type: object additionalProperties: false properties: usb2-0: type: object additionalProperties: false properties: "#phy-cells": const: 0 nvidia,function: description: Function selection for this lane. $ref: /schemas/types.yaml#/definitions/string enum: [ xusb ] usb2-1: type: object additionalProperties: false properties: "#phy-cells": const: 0 nvidia,function: description: Function selection for this lane. $ref: /schemas/types.yaml#/definitions/string enum: [ xusb ] usb2-2: type: object additionalProperties: false properties: "#phy-cells": const: 0 nvidia,function: description: Function selection for this lane. $ref: /schemas/types.yaml#/definitions/string enum: [ xusb ] usb2-3: type: object additionalProperties: false properties: "#phy-cells": const: 0 nvidia,function: description: Function selection for this lane. $ref: /schemas/types.yaml#/definitions/string enum: [ xusb ] usb3: type: object additionalProperties: false properties: lanes: type: object additionalProperties: false properties: usb3-0: type: object additionalProperties: false properties: "#phy-cells": const: 0 nvidia,function: description: Function selection for this lane. $ref: /schemas/types.yaml#/definitions/string enum: [ xusb ] usb3-1: type: object additionalProperties: false properties: "#phy-cells": const: 0 nvidia,function: description: Function selection for this lane. $ref: /schemas/types.yaml#/definitions/string enum: [ xusb ] usb3-2: type: object additionalProperties: false properties: "#phy-cells": const: 0 nvidia,function: description: Function selection for this lane. $ref: /schemas/types.yaml#/definitions/string enum: [ xusb ] usb3-3: type: object additionalProperties: false properties: "#phy-cells": const: 0 nvidia,function: description: Function selection for this lane. $ref: /schemas/types.yaml#/definitions/string enum: [ xusb ] ports: description: A required child node named "ports" contains a list of subnodes, one for each of the ports exposed by the XUSB pad controller. Each port may need additional resources that can be referenced in its port node. The "status" property is used to enable or disable the use of a port. If set to "disabled", the port will not be used on the given board. In order to use the port, this property must be set to "okay". type: object additionalProperties: false properties: usb2-0: type: object additionalProperties: false properties: # no need to further describe this because the connector will # match on gpio-usb-b-connector or usb-b-connector and cause # that binding to be selected for the subnode connector: type: object mode: description: A string that determines the mode in which to run the port. $ref: /schemas/types.yaml#/definitions/string enum: [ host, peripheral, otg ] nvidia,internal: description: A boolean property whose presence determines that a port is internal. In the absence of this property the port is considered to be external. $ref: /schemas/types.yaml#/definitions/flag usb-role-switch: description: | A boolean property whole presence indicates that the port supports OTG or peripheral mode. If present, the port supports switching between USB host and peripheral roles. A connector must be added as a subnode in that case. See ../connector/usb-connector.yaml. vbus-supply: description: A phandle to the regulator supplying the VBUS voltage. dependencies: usb-role-switch: [ connector ] usb2-1: type: object additionalProperties: false properties: # no need to further describe this because the connector will # match on gpio-usb-b-connector or usb-b-connector and cause # that binding to be selected for the subnode connector: type: object mode: description: A string that determines the mode in which to run the port. $ref: /schemas/types.yaml#/definitions/string enum: [ host, peripheral, otg ] nvidia,internal: description: A boolean property whose presence determines that a port is internal. In the absence of this property the port is considered to be external. $ref: /schemas/types.yaml#/definitions/flag usb-role-switch: description: | A boolean property whole presence indicates that the port supports OTG or peripheral mode. If present, the port supports switching between USB host and peripheral roles. A connector must be added as a subnode in that case. See ../connector/usb-connector.yaml. vbus-supply: description: A phandle to the regulator supplying the VBUS voltage. dependencies: usb-role-switch: [ connector ] usb2-2: type: object additionalProperties: false properties: # no need to further describe this because the connector will # match on gpio-usb-b-connector or usb-b-connector and cause # that binding to be selected for the subnode connector: type: object mode: description: A string that determines the mode in which to run the port. $ref: /schemas/types.yaml#/definitions/string enum: [ host, peripheral, otg ] nvidia,internal: description: A boolean property whose presence determines that a port is internal. In the absence of this property the port is considered to be external. $ref: /schemas/types.yaml#/definitions/flag usb-role-switch: description: | A boolean property whole presence indicates that the port supports OTG or peripheral mode. If present, the port supports switching between USB host and peripheral roles. A connector must be added as a subnode in that case. See ../connector/usb-connector.yaml. vbus-supply: description: A phandle to the regulator supplying the VBUS voltage. dependencies: usb-role-switch: [ connector ] usb2-3: type: object additionalProperties: false properties: # no need to further describe this because the connector will # match on gpio-usb-b-connector or usb-b-connector and cause # that binding to be selected for the subnode connector: type: object mode: description: A string that determines the mode in which to run the port. $ref: /schemas/types.yaml#/definitions/string enum: [ host, peripheral, otg ] nvidia,internal: description: A boolean property whose presence determines that a port is internal. In the absence of this property the port is considered to be external. $ref: /schemas/types.yaml#/definitions/flag usb-role-switch: description: | A boolean property whole presence indicates that the port supports OTG or peripheral mode. If present, the port supports switching between USB host and peripheral roles. A connector must be added as a subnode in that case. See ../connector/usb-connector.yaml. vbus-supply: description: A phandle to the regulator supplying the VBUS voltage. dependencies: usb-role-switch: [ connector ] usb3-0: type: object additionalProperties: false properties: maximum-speed: description: A string property that specifies the maximum supported speed of a USB3 port. $ref: /schemas/types.yaml#/definitions/string oneOf: - description: The USB3 port supports USB 3.1 Gen 2 speed. This is the default. const: super-speed-plus - description: The USB3 port supports USB 3.1 Gen 1 speed only. const: super-speed nvidia,internal: description: A boolean property whose presence determines that a port is internal. In the absence of this property the port is considered to be external. $ref: /schemas/types.yaml#/definitions/flag nvidia,usb2-companion: description: A single cell that specifies the physical port number to map this super-speed USB port to. The range of valid port numbers varies with the SoC generation. $ref: /schemas/types.yaml#/definitions/uint32 enum: [ 0, 1, 2, 3 ] vbus-supply: description: A phandle to the regulator supplying the VBUS voltage. usb3-1: type: object additionalProperties: false properties: maximum-speed: description: A string property that specifies the maximum supported speed of a USB3 port. $ref: /schemas/types.yaml#/definitions/string oneOf: - description: The USB3 port supports USB 3.1 Gen 2 speed. This is the default. const: super-speed-plus - description: The USB3 port supports USB 3.1 Gen 1 speed only. const: super-speed nvidia,internal: description: A boolean property whose presence determines that a port is internal. In the absence of this property the port is considered to be external. $ref: /schemas/types.yaml#/definitions/flag nvidia,usb2-companion: description: A single cell that specifies the physical port number to map this super-speed USB port to. The range of valid port numbers varies with the SoC generation. $ref: /schemas/types.yaml#/definitions/uint32 enum: [ 0, 1, 2, 3 ] vbus-supply: description: A phandle to the regulator supplying the VBUS voltage. usb3-2: type: object additionalProperties: false properties: maximum-speed: description: A string property that specifies the maximum supported speed of a USB3 port. $ref: /schemas/types.yaml#/definitions/string oneOf: - description: The USB3 port supports USB 3.1 Gen 2 speed. This is the default. const: super-speed-plus - description: The USB3 port supports USB 3.1 Gen 1 speed only. const: super-speed nvidia,internal: description: A boolean property whose presence determines that a port is internal. In the absence of this property the port is considered to be external. $ref: /schemas/types.yaml#/definitions/flag nvidia,usb2-companion: description: A single cell that specifies the physical port number to map this super-speed USB port to. The range of valid port numbers varies with the SoC generation. $ref: /schemas/types.yaml#/definitions/uint32 enum: [ 0, 1, 2, 3 ] vbus-supply: description: A phandle to the regulator supplying the VBUS voltage. usb3-3: type: object additionalProperties: false properties: maximum-speed: description: A string property that specifies the maximum supported speed of a USB3 port. $ref: /schemas/types.yaml#/definitions/string oneOf: - description: The USB3 port supports USB 3.1 Gen 2 speed. This is the default. const: super-speed-plus - description: The USB3 port supports USB 3.1 Gen 1 speed only. const: super-speed nvidia,internal: description: A boolean property whose presence determines that a port is internal. In the absence of this property the port is considered to be external. $ref: /schemas/types.yaml#/definitions/flag nvidia,usb2-companion: description: A single cell that specifies the physical port number to map this super-speed USB port to. The range of valid port numbers varies with the SoC generation. $ref: /schemas/types.yaml#/definitions/uint32 enum: [ 0, 1, 2, 3 ] vbus-supply: description: A phandle to the regulator supplying the VBUS voltage. additionalProperties: false required: - compatible - reg - resets - reset-names - avdd-usb-supply - vclamp-usb-supply examples: - | #include <dt-bindings/clock/tegra194-clock.h> #include <dt-bindings/gpio/tegra194-gpio.h> #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/reset/tegra194-reset.h> padctl@3520000 { compatible = "nvidia,tegra194-xusb-padctl"; reg = <0x03520000 0x1000>, <0x03540000 0x1000>; reg-names = "padctl", "ao"; interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>; resets = <&bpmp TEGRA194_RESET_XUSB_PADCTL>; reset-names = "padctl"; avdd-usb-supply = <&vdd_usb_3v3>; vclamp-usb-supply = <&vdd_1v8ao>; pads { usb2 { clocks = <&bpmp TEGRA194_CLK_USB2_TRK>; clock-names = "trk"; lanes { usb2-0 { nvidia,function = "xusb"; status = "disabled"; #phy-cells = <0>; }; usb2-1 { nvidia,function = "xusb"; #phy-cells = <0>; }; usb2-2 { nvidia,function = "xusb"; status = "disabled"; #phy-cells = <0>; }; usb2-3 { nvidia,function = "xusb"; #phy-cells = <0>; }; }; }; usb3 { lanes { usb3-0 { nvidia,function = "xusb"; #phy-cells = <0>; }; usb3-1 { nvidia,function = "xusb"; status = "disabled"; #phy-cells = <0>; }; usb3-2 { nvidia,function = "xusb"; status = "disabled"; #phy-cells = <0>; }; usb3-3 { nvidia,function = "xusb"; #phy-cells = <0>; }; }; }; }; ports { usb2-0 { status = "disabled"; }; usb2-1 { vbus-supply = <&vdd_5v0_sys>; mode = "host"; }; usb2-2 { status = "disabled"; }; usb2-3 { vbus-supply = <&vdd_5v_sata>; mode = "host"; }; usb3-0 { vbus-supply = <&vdd_5v0_sys>; nvidia,usb2-companion = <1>; }; usb3-1 { status = "disabled"; }; usb3-2 { status = "disabled"; }; usb3-3 { maximum-speed = "super-speed"; vbus-supply = <&vdd_5v0_sys>; nvidia,usb2-companion = <3>; }; }; }; |