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1NVIDIA Tegra PCIe controller2 3Required properties:4- compatible: Must be:5 - "nvidia,tegra20-pcie": for Tegra206 - "nvidia,tegra30-pcie": for Tegra307 - "nvidia,tegra124-pcie": for Tegra124 and Tegra1328 - "nvidia,tegra210-pcie": for Tegra2109 - "nvidia,tegra186-pcie": for Tegra18610- power-domains: To ungate power partition by BPMP powergate driver. Must11 contain BPMP phandle and PCIe power partition ID. This is required only12 for Tegra186.13- device_type: Must be "pci"14- reg: A list of physical base address and length for each set of controller15 registers. Must contain an entry for each entry in the reg-names property.16- reg-names: Must include the following entries:17 "pads": PADS registers18 "afi": AFI registers19 "cs": configuration space region20- interrupts: A list of interrupt outputs of the controller. Must contain an21 entry for each entry in the interrupt-names property.22- interrupt-names: Must include the following entries:23 "intr": The Tegra interrupt that is asserted for controller interrupts24 "msi": The Tegra interrupt that is asserted when an MSI is received25- bus-range: Range of bus numbers associated with this controller26- #address-cells: Address representation for root ports (must be 3)27 - cell 0 specifies the bus and device numbers of the root port:28 [23:16]: bus number29 [15:11]: device number30 - cell 1 denotes the upper 32 address bits and should be 031 - cell 2 contains the lower 32 address bits and is used to translate to the32 CPU address space33- #size-cells: Size representation for root ports (must be 2)34- ranges: Describes the translation of addresses for root ports and standard35 PCI regions. The entries must be 6 cells each, where the first three cells36 correspond to the address as described for the #address-cells property37 above, the fourth cell is the physical CPU address to translate to and the38 fifth and six cells are as described for the #size-cells property above.39 - The first two entries are expected to translate the addresses for the root40 port registers, which are referenced by the assigned-addresses property of41 the root port nodes (see below).42 - The remaining entries setup the mapping for the standard I/O, memory and43 prefetchable PCI regions. The first cell determines the type of region44 that is setup:45 - 0x81000000: I/O memory region46 - 0x82000000: non-prefetchable memory region47 - 0xc2000000: prefetchable memory region48 Please refer to the standard PCI bus binding document for a more detailed49 explanation.50- #interrupt-cells: Size representation for interrupts (must be 1)51- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties52 Please refer to the standard PCI bus binding document for a more detailed53 explanation.54- clocks: Must contain an entry for each entry in clock-names.55 See ../clocks/clock-bindings.txt for details.56- clock-names: Must include the following entries:57 - pex58 - afi59 - pll_e60 - cml (not required for Tegra20)61- resets: Must contain an entry for each entry in reset-names.62 See ../reset/reset.txt for details.63- reset-names: Must include the following entries:64 - pex65 - afi66 - pcie_x67 68Optional properties:69- pinctrl-names: A list of pinctrl state names. Must contain the following70 entries:71 - "default": active state, puts PCIe I/O out of deep power down state72 - "idle": puts PCIe I/O into deep power down state73- pinctrl-0: phandle for the default/active state of pin configurations.74- pinctrl-1: phandle for the idle state of pin configurations.75 76Required properties on Tegra124 and later (deprecated):77- phys: Must contain an entry for each entry in phy-names.78- phy-names: Must include the following entries:79 - pcie80 81These properties are deprecated in favour of per-lane PHYs define in each of82the root ports (see below).83 84Power supplies for Tegra20:85- avdd-pex-supply: Power supply for analog PCIe logic. Must supply 1.05 V.86- vdd-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.87- avdd-pex-pll-supply: Power supply for dedicated (internal) PCIe PLL. Must88 supply 1.05 V.89- avdd-plle-supply: Power supply for PLLE, which is shared with SATA. Must90 supply 1.05 V.91- vddio-pex-clk-supply: Power supply for PCIe clock. Must supply 3.3 V.92 93Power supplies for Tegra30:94- Required:95 - avdd-pex-pll-supply: Power supply for dedicated (internal) PCIe PLL. Must96 supply 1.05 V.97 - avdd-plle-supply: Power supply for PLLE, which is shared with SATA. Must98 supply 1.05 V.99 - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must100 supply 1.8 V.101 - hvdd-pex-supply: High-voltage supply for PCIe I/O and PCIe output clocks.102 Must supply 3.3 V.103- Optional:104 - If lanes 0 to 3 are used:105 - avdd-pexa-supply: Power supply for analog PCIe logic. Must supply 1.05 V.106 - vdd-pexa-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.107 - If lanes 4 or 5 are used:108 - avdd-pexb-supply: Power supply for analog PCIe logic. Must supply 1.05 V.109 - vdd-pexb-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.110 111Power supplies for Tegra124:112- Required:113 - avddio-pex-supply: Power supply for analog PCIe logic. Must supply 1.05 V.114 - dvddio-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.115 - hvdd-pex-supply: High-voltage supply for PCIe I/O and PCIe output clocks.116 Must supply 3.3 V.117 - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must118 supply 2.8-3.3 V.119 120Power supplies for Tegra210:121- Required:122 - hvddio-pex-supply: High-voltage supply for PCIe I/O and PCIe output123 clocks. Must supply 1.8 V.124 - dvddio-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.125 - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must126 supply 1.8 V.127 128Power supplies for Tegra186:129- Required:130 - dvdd-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.131 - hvdd-pex-pll-supply: High-voltage supply for PLLE (shared with USB3). Must132 supply 1.8 V.133 - hvdd-pex-supply: High-voltage supply for PCIe I/O and PCIe output clocks.134 Must supply 1.8 V.135 - vddio-pexctl-aud-supply: Power supply for PCIe side band signals. Must136 supply 1.8 V.137 138Root ports are defined as subnodes of the PCIe controller node.139 140Required properties:141- device_type: Must be "pci"142- assigned-addresses: Address and size of the port configuration registers143- reg: PCI bus address of the root port144- #address-cells: Must be 3145- #size-cells: Must be 2146- ranges: Sub-ranges distributed from the PCIe controller node. An empty147 property is sufficient.148- nvidia,num-lanes: Number of lanes to use for this port. Valid combinations149 are:150 - Root port 0 uses 4 lanes, root port 1 is unused.151 - Both root ports use 2 lanes.152 153Required properties for Tegra124 and later:154- phys: Must contain an phandle to a PHY for each entry in phy-names.155- phy-names: Must include an entry for each active lane. Note that the number156 of entries does not have to (though usually will) be equal to the specified157 number of lanes in the nvidia,num-lanes property. Entries are of the form158 "pcie-N": where N ranges from 0 to the value specified in nvidia,num-lanes.159 160Examples:161=========162 163Tegra20:164--------165 166SoC DTSI:167 168 pcie-controller@80003000 {169 compatible = "nvidia,tegra20-pcie";170 device_type = "pci";171 reg = <0x80003000 0x00000800 /* PADS registers */172 0x80003800 0x00000200 /* AFI registers */173 0x90000000 0x10000000>; /* configuration space */174 reg-names = "pads", "afi", "cs";175 interrupts = <0 98 0x04 /* controller interrupt */176 0 99 0x04>; /* MSI interrupt */177 interrupt-names = "intr", "msi";178 179 #interrupt-cells = <1>;180 interrupt-map-mask = <0 0 0 0>;181 interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;182 183 bus-range = <0x00 0xff>;184 #address-cells = <3>;185 #size-cells = <2>;186 187 ranges = <0x82000000 0 0x80000000 0x80000000 0 0x00001000 /* port 0 registers */188 0x82000000 0 0x80001000 0x80001000 0 0x00001000 /* port 1 registers */189 0x81000000 0 0 0x82000000 0 0x00010000 /* downstream I/O */190 0x82000000 0 0xa0000000 0xa0000000 0 0x10000000 /* non-prefetchable memory */191 0xc2000000 0 0xb0000000 0xb0000000 0 0x10000000>; /* prefetchable memory */192 193 clocks = <&tegra_car 70>, <&tegra_car 72>, <&tegra_car 118>;194 clock-names = "pex", "afi", "pll_e";195 resets = <&tegra_car 70>, <&tegra_car 72>, <&tegra_car 74>;196 reset-names = "pex", "afi", "pcie_x";197 status = "disabled";198 199 pci@1,0 {200 device_type = "pci";201 assigned-addresses = <0x82000800 0 0x80000000 0 0x1000>;202 reg = <0x000800 0 0 0 0>;203 status = "disabled";204 205 #address-cells = <3>;206 #size-cells = <2>;207 208 ranges;209 210 nvidia,num-lanes = <2>;211 };212 213 pci@2,0 {214 device_type = "pci";215 assigned-addresses = <0x82001000 0 0x80001000 0 0x1000>;216 reg = <0x001000 0 0 0 0>;217 status = "disabled";218 219 #address-cells = <3>;220 #size-cells = <2>;221 222 ranges;223 224 nvidia,num-lanes = <2>;225 };226 };227 228Board DTS:229 230 pcie-controller@80003000 {231 status = "okay";232 233 vdd-supply = <&pci_vdd_reg>;234 pex-clk-supply = <&pci_clk_reg>;235 236 /* root port 00:01.0 */237 pci@1,0 {238 status = "okay";239 240 /* bridge 01:00.0 (optional) */241 pci@0,0 {242 reg = <0x010000 0 0 0 0>;243 244 #address-cells = <3>;245 #size-cells = <2>;246 247 device_type = "pci";248 249 /* endpoint 02:00.0 */250 pci@0,0 {251 reg = <0x020000 0 0 0 0>;252 };253 };254 };255 };256 257Note that devices on the PCI bus are dynamically discovered using PCI's bus258enumeration and therefore don't need corresponding device nodes in DT. However259if a device on the PCI bus provides a non-probeable bus such as I2C or SPI,260device nodes need to be added in order to allow the bus' children to be261instantiated at the proper location in the operating system's device tree (as262illustrated by the optional nodes in the example above).263 264Tegra30:265--------266 267SoC DTSI:268 269 pcie-controller@3000 {270 compatible = "nvidia,tegra30-pcie";271 device_type = "pci";272 reg = <0x00003000 0x00000800 /* PADS registers */273 0x00003800 0x00000200 /* AFI registers */274 0x10000000 0x10000000>; /* configuration space */275 reg-names = "pads", "afi", "cs";276 interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH /* controller interrupt */277 GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */278 interrupt-names = "intr", "msi";279 280 #interrupt-cells = <1>;281 interrupt-map-mask = <0 0 0 0>;282 interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;283 284 bus-range = <0x00 0xff>;285 #address-cells = <3>;286 #size-cells = <2>;287 288 ranges = <0x82000000 0 0x00000000 0x00000000 0 0x00001000 /* port 0 configuration space */289 0x82000000 0 0x00001000 0x00001000 0 0x00001000 /* port 1 configuration space */290 0x82000000 0 0x00004000 0x00004000 0 0x00001000 /* port 2 configuration space */291 0x81000000 0 0 0x02000000 0 0x00010000 /* downstream I/O */292 0x82000000 0 0x20000000 0x20000000 0 0x08000000 /* non-prefetchable memory */293 0xc2000000 0 0x28000000 0x28000000 0 0x18000000>; /* prefetchable memory */294 295 clocks = <&tegra_car TEGRA30_CLK_PCIE>,296 <&tegra_car TEGRA30_CLK_AFI>,297 <&tegra_car TEGRA30_CLK_PLL_E>,298 <&tegra_car TEGRA30_CLK_CML0>;299 clock-names = "pex", "afi", "pll_e", "cml";300 resets = <&tegra_car 70>,301 <&tegra_car 72>,302 <&tegra_car 74>;303 reset-names = "pex", "afi", "pcie_x";304 status = "disabled";305 306 pci@1,0 {307 device_type = "pci";308 assigned-addresses = <0x82000800 0 0x00000000 0 0x1000>;309 reg = <0x000800 0 0 0 0>;310 status = "disabled";311 312 #address-cells = <3>;313 #size-cells = <2>;314 ranges;315 316 nvidia,num-lanes = <2>;317 };318 319 pci@2,0 {320 device_type = "pci";321 assigned-addresses = <0x82001000 0 0x00001000 0 0x1000>;322 reg = <0x001000 0 0 0 0>;323 status = "disabled";324 325 #address-cells = <3>;326 #size-cells = <2>;327 ranges;328 329 nvidia,num-lanes = <2>;330 };331 332 pci@3,0 {333 device_type = "pci";334 assigned-addresses = <0x82001800 0 0x00004000 0 0x1000>;335 reg = <0x001800 0 0 0 0>;336 status = "disabled";337 338 #address-cells = <3>;339 #size-cells = <2>;340 ranges;341 342 nvidia,num-lanes = <2>;343 };344 };345 346Board DTS:347 348 pcie-controller@3000 {349 status = "okay";350 351 avdd-pexa-supply = <&ldo1_reg>;352 vdd-pexa-supply = <&ldo1_reg>;353 avdd-pexb-supply = <&ldo1_reg>;354 vdd-pexb-supply = <&ldo1_reg>;355 avdd-pex-pll-supply = <&ldo1_reg>;356 avdd-plle-supply = <&ldo1_reg>;357 vddio-pex-ctl-supply = <&sys_3v3_reg>;358 hvdd-pex-supply = <&sys_3v3_pexs_reg>;359 360 pci@1,0 {361 status = "okay";362 };363 364 pci@3,0 {365 status = "okay";366 };367 };368 369Tegra124:370---------371 372SoC DTSI:373 374 pcie-controller@1003000 {375 compatible = "nvidia,tegra124-pcie";376 device_type = "pci";377 reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */378 0x0 0x01003800 0x0 0x00000800 /* AFI registers */379 0x0 0x02000000 0x0 0x10000000>; /* configuration space */380 reg-names = "pads", "afi", "cs";381 interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */382 <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */383 interrupt-names = "intr", "msi";384 385 #interrupt-cells = <1>;386 interrupt-map-mask = <0 0 0 0>;387 interrupt-map = <0 0 0 0 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;388 389 bus-range = <0x00 0xff>;390 #address-cells = <3>;391 #size-cells = <2>;392 393 ranges = <0x82000000 0 0x01000000 0x0 0x01000000 0 0x00001000 /* port 0 configuration space */394 0x82000000 0 0x01001000 0x0 0x01001000 0 0x00001000 /* port 1 configuration space */395 0x81000000 0 0x0 0x0 0x12000000 0 0x00010000 /* downstream I/O (64 KiB) */396 0x82000000 0 0x13000000 0x0 0x13000000 0 0x0d000000 /* non-prefetchable memory (208 MiB) */397 0xc2000000 0 0x20000000 0x0 0x20000000 0 0x20000000>; /* prefetchable memory (512 MiB) */398 399 clocks = <&tegra_car TEGRA124_CLK_PCIE>,400 <&tegra_car TEGRA124_CLK_AFI>,401 <&tegra_car TEGRA124_CLK_PLL_E>,402 <&tegra_car TEGRA124_CLK_CML0>;403 clock-names = "pex", "afi", "pll_e", "cml";404 resets = <&tegra_car 70>,405 <&tegra_car 72>,406 <&tegra_car 74>;407 reset-names = "pex", "afi", "pcie_x";408 status = "disabled";409 410 pci@1,0 {411 device_type = "pci";412 assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;413 reg = <0x000800 0 0 0 0>;414 status = "disabled";415 416 #address-cells = <3>;417 #size-cells = <2>;418 ranges;419 420 nvidia,num-lanes = <2>;421 };422 423 pci@2,0 {424 device_type = "pci";425 assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;426 reg = <0x001000 0 0 0 0>;427 status = "disabled";428 429 #address-cells = <3>;430 #size-cells = <2>;431 ranges;432 433 nvidia,num-lanes = <1>;434 };435 };436 437Board DTS:438 439 pcie-controller@1003000 {440 status = "okay";441 442 avddio-pex-supply = <&vdd_1v05_run>;443 dvddio-pex-supply = <&vdd_1v05_run>;444 avdd-pex-pll-supply = <&vdd_1v05_run>;445 hvdd-pex-supply = <&vdd_3v3_lp0>;446 hvdd-pex-pll-e-supply = <&vdd_3v3_lp0>;447 vddio-pex-ctl-supply = <&vdd_3v3_lp0>;448 avdd-pll-erefe-supply = <&avdd_1v05_run>;449 450 /* Mini PCIe */451 pci@1,0 {452 phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-4}>;453 phy-names = "pcie-0";454 status = "okay";455 };456 457 /* Gigabit Ethernet */458 pci@2,0 {459 phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-2}>;460 phy-names = "pcie-0";461 status = "okay";462 };463 };464 465Tegra210:466---------467 468SoC DTSI:469 470 pcie-controller@1003000 {471 compatible = "nvidia,tegra210-pcie";472 device_type = "pci";473 reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */474 0x0 0x01003800 0x0 0x00000800 /* AFI registers */475 0x0 0x02000000 0x0 0x10000000>; /* configuration space */476 reg-names = "pads", "afi", "cs";477 interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */478 <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */479 interrupt-names = "intr", "msi";480 481 #interrupt-cells = <1>;482 interrupt-map-mask = <0 0 0 0>;483 interrupt-map = <0 0 0 0 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;484 485 bus-range = <0x00 0xff>;486 #address-cells = <3>;487 #size-cells = <2>;488 489 ranges = <0x82000000 0 0x01000000 0x0 0x01000000 0 0x00001000 /* port 0 configuration space */490 0x82000000 0 0x01001000 0x0 0x01001000 0 0x00001000 /* port 1 configuration space */491 0x81000000 0 0x0 0x0 0x12000000 0 0x00010000 /* downstream I/O (64 KiB) */492 0x82000000 0 0x13000000 0x0 0x13000000 0 0x0d000000 /* non-prefetchable memory (208 MiB) */493 0xc2000000 0 0x20000000 0x0 0x20000000 0 0x20000000>; /* prefetchable memory (512 MiB) */494 495 clocks = <&tegra_car TEGRA210_CLK_PCIE>,496 <&tegra_car TEGRA210_CLK_AFI>,497 <&tegra_car TEGRA210_CLK_PLL_E>,498 <&tegra_car TEGRA210_CLK_CML0>;499 clock-names = "pex", "afi", "pll_e", "cml";500 resets = <&tegra_car 70>,501 <&tegra_car 72>,502 <&tegra_car 74>;503 reset-names = "pex", "afi", "pcie_x";504 status = "disabled";505 506 pci@1,0 {507 device_type = "pci";508 assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;509 reg = <0x000800 0 0 0 0>;510 status = "disabled";511 512 #address-cells = <3>;513 #size-cells = <2>;514 ranges;515 516 nvidia,num-lanes = <4>;517 };518 519 pci@2,0 {520 device_type = "pci";521 assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;522 reg = <0x001000 0 0 0 0>;523 status = "disabled";524 525 #address-cells = <3>;526 #size-cells = <2>;527 ranges;528 529 nvidia,num-lanes = <1>;530 };531 };532 533Board DTS:534 535 pcie-controller@1003000 {536 status = "okay";537 538 avdd-pll-uerefe-supply = <&avdd_1v05_pll>;539 hvddio-pex-supply = <&vdd_1v8>;540 dvddio-pex-supply = <&vdd_pex_1v05>;541 dvdd-pex-pll-supply = <&vdd_pex_1v05>;542 hvdd-pex-pll-e-supply = <&vdd_1v8>;543 vddio-pex-ctl-supply = <&vdd_1v8>;544 545 pci@1,0 {546 phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-0}>,547 <&{/padctl@7009f000/pads/pcie/lanes/pcie-1}>,548 <&{/padctl@7009f000/pads/pcie/lanes/pcie-2}>,549 <&{/padctl@7009f000/pads/pcie/lanes/pcie-3}>;550 phy-names = "pcie-0", "pcie-1", "pcie-2", "pcie-3";551 status = "okay";552 };553 554 pci@2,0 {555 phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-4}>;556 phy-names = "pcie-0";557 status = "okay";558 };559 };560 561Tegra186:562---------563 564SoC DTSI:565 566 pcie@10003000 {567 compatible = "nvidia,tegra186-pcie";568 power-domains = <&bpmp TEGRA186_POWER_DOMAIN_PCX>;569 device_type = "pci";570 reg = <0x0 0x10003000 0x0 0x00000800 /* PADS registers */571 0x0 0x10003800 0x0 0x00000800 /* AFI registers */572 0x0 0x40000000 0x0 0x10000000>; /* configuration space */573 reg-names = "pads", "afi", "cs";574 575 interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */576 <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */577 interrupt-names = "intr", "msi";578 579 #interrupt-cells = <1>;580 interrupt-map-mask = <0 0 0 0>;581 interrupt-map = <0 0 0 0 &gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;582 583 bus-range = <0x00 0xff>;584 #address-cells = <3>;585 #size-cells = <2>;586 587 ranges = <0x82000000 0 0x10000000 0x0 0x10000000 0 0x00001000 /* port 0 configuration space */588 0x82000000 0 0x10001000 0x0 0x10001000 0 0x00001000 /* port 1 configuration space */589 0x82000000 0 0x10004000 0x0 0x10004000 0 0x00001000 /* port 2 configuration space */590 0x81000000 0 0x0 0x0 0x50000000 0 0x00010000 /* downstream I/O (64 KiB) */591 0x82000000 0 0x50100000 0x0 0x50100000 0 0x07F00000 /* non-prefetchable memory (127 MiB) */592 0xc2000000 0 0x58000000 0x0 0x58000000 0 0x28000000>; /* prefetchable memory (640 MiB) */593 594 clocks = <&bpmp TEGRA186_CLK_AFI>,595 <&bpmp TEGRA186_CLK_PCIE>,596 <&bpmp TEGRA186_CLK_PLLE>;597 clock-names = "afi", "pex", "pll_e";598 599 resets = <&bpmp TEGRA186_RESET_AFI>,600 <&bpmp TEGRA186_RESET_PCIE>,601 <&bpmp TEGRA186_RESET_PCIEXCLK>;602 reset-names = "afi", "pex", "pcie_x";603 604 status = "disabled";605 606 pci@1,0 {607 device_type = "pci";608 assigned-addresses = <0x82000800 0 0x10000000 0 0x1000>;609 reg = <0x000800 0 0 0 0>;610 status = "disabled";611 612 #address-cells = <3>;613 #size-cells = <2>;614 ranges;615 616 nvidia,num-lanes = <2>;617 };618 619 pci@2,0 {620 device_type = "pci";621 assigned-addresses = <0x82001000 0 0x10001000 0 0x1000>;622 reg = <0x001000 0 0 0 0>;623 status = "disabled";624 625 #address-cells = <3>;626 #size-cells = <2>;627 ranges;628 629 nvidia,num-lanes = <1>;630 };631 632 pci@3,0 {633 device_type = "pci";634 assigned-addresses = <0x82001800 0 0x10004000 0 0x1000>;635 reg = <0x001800 0 0 0 0>;636 status = "disabled";637 638 #address-cells = <3>;639 #size-cells = <2>;640 ranges;641 642 nvidia,num-lanes = <1>;643 };644 };645 646Board DTS:647 648 pcie@10003000 {649 status = "okay";650 651 dvdd-pex-supply = <&vdd_pex>;652 hvdd-pex-pll-supply = <&vdd_1v8>;653 hvdd-pex-supply = <&vdd_1v8>;654 vddio-pexctl-aud-supply = <&vdd_1v8>;655 656 pci@1,0 {657 nvidia,num-lanes = <4>;658 status = "okay";659 };660 661 pci@2,0 {662 nvidia,num-lanes = <0>;663 status = "disabled";664 };665 666 pci@3,0 {667 nvidia,num-lanes = <1>;668 status = "disabled";669 };670 };671