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Message-ID: <20250926072905.126737-2-linux.amoon@gmail.com>
Date: Fri, 26 Sep 2025 12:57:42 +0530
From: Anand Moon <linux.amoon@...il.com>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kwilczynski@...nel.org>,
Manivannan Sadhasivam <mani@...nel.org>,
Rob Herring <robh@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
linux-pci@...r.kernel.org (open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS),
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
linux-tegra@...r.kernel.org (open list:TEGRA ARCHITECTURE SUPPORT),
linux-kernel@...r.kernel.org (open list)
Cc: Anand Moon <linux.amoon@...il.com>
Subject: [PATCH v1 1/5] dt-bindings: PCI: Convert the existing nvidia,tegra-pcie.txt bindings documentation into a YAML schema
Convert the legacy text-based binding documentation for
nvidia,tegra-pcie into a nvidia,tegra-pcie.yaml YAML schema, following
the Devicetree Schema format. This improves validation coverage and enables
dtbs_check compliance for Tegra PCIe nodes.
Cc: Jon Hunter <jonathanh@...dia.com>
Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
v1: new patch in this series.
---
.../bindings/pci/nvidia,tegra-pcie.yaml | 651 +++++++++++++++++
.../bindings/pci/nvidia,tegra20-pcie.txt | 670 ------------------
2 files changed, 651 insertions(+), 670 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pci/nvidia,tegra-pcie.yaml
delete mode 100644 Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra-pcie.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra-pcie.yaml
new file mode 100644
index 000000000000..dd8cba125b53
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra-pcie.yaml
@@ -0,0 +1,651 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/nvidia,tegra-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra PCIe Controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@...il.com>
+ - Jon Hunter <jonathanh@...dia.com>
+
+description: |
+ PCIe controller found on NVIDIA Tegra SoCs including Tegra20, Tegra30,
+ Tegra124, Tegra210, and Tegra186. Supports multiple root ports and
+ platform-specific clock, reset, and power supply configurations.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - nvidia,tegra20-pcie
+ - nvidia,tegra30-pcie
+ - nvidia,tegra124-pcie
+ - nvidia,tegra210-pcie
+ - nvidia,tegra186-pcie
+
+ reg:
+ items:
+ - description: PADS registers
+ - description: AFI registers
+ - description: Configuration space region
+
+ reg-names:
+ items:
+ - const: pads
+ - const: afi
+ - const: cs
+
+ device_type:
+ const: pci
+
+ interrupts:
+ items:
+ - description: Controller interrupt
+ - description: MSI interrupt
+
+ interrupt-names:
+ items:
+ - const: intr
+ - const: msi
+
+ clocks:
+ oneOf:
+ - items:
+ - description: PCIe clock
+ - description: AFI clock
+ - description: PLL_E clock
+ - items:
+ - description: PCIe clock
+ - description: AFI clock
+ - description: PLL_E clock
+ - description: CML clock
+
+ clock-names:
+ oneOf:
+ - items:
+ - const: pex
+ - const: afi
+ - const: pll_e
+ - items:
+ - const: pex
+ - const: afi
+ - const: pll_e
+ - const: cml
+
+ resets:
+ items:
+ - description: PCIe reset
+ - description: AFI reset
+ - description: PCIe X reset
+
+ reset-names:
+ items:
+ - const: pex
+ - const: afi
+ - const: pcie_x
+
+ power-domains:
+ maxItems: 1
+ description: |
+ A phandle to the node that controls power to the respective PCIe
+ controller and a specifier name for the PCIe controller.
+
+ interconnects:
+ minItems: 1
+ maxItems: 2
+
+ interconnect-names:
+ minItems: 1
+ maxItems: 2
+ description:
+ Should include name of the interconnect path for each interconnect
+ entry. Consult TRM documentation for information about available
+ memory clients, see DMA CONTROLLER and MEMORY WRITE sections.
+
+ pinctrl-names:
+ items:
+ - const: default
+ - const: idle
+
+ pinctrl-0:
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ pinctrl-1:
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ nvidia,num-lanes:
+ description: Number of PCIe lanes used
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+allOf:
+ - $ref: /schemas/pci/pci-host-bridge.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra20-pcie
+ - nvidia,tegra186-pcie
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ maxItems: 3
+ clock-names:
+ items:
+ - const: pex
+ - const: afi
+ - const: pll_e
+ resets:
+ minItems: 3
+ maxItems: 3
+ reset-names:
+ items:
+ - const: pex
+ - const: afi
+ - const: pcie_x
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra30-pcie
+ - nvidia,tegra124-pcie
+ - nvidia,tegra210-pcie
+ then:
+ properties:
+ clocks:
+ minItems: 4
+ maxItems: 4
+ clock-names:
+ items:
+ - const: pex
+ - const: afi
+ - const: pll_e
+ - const: cml
+ resets:
+ minItems: 3
+ maxItems: 3
+ reset-names:
+ items:
+ - const: pex
+ - const: afi
+ - const: pcie_x
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra20-pcie
+ - nvidia,tegra30-pcie
+ - nvidia,tegra186-pcie
+ then:
+ required:
+ - power-domains
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra186-pcie
+ then:
+ required:
+ - interconnects
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra210-pcie
+ then:
+ required:
+ - pinctrl-names
+ - pinctrl-0
+ - pinctrl-1
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - interrupts
+ - interrupt-map
+ - interrupt-map-mask
+ - ranges
+ - bus-range
+ - device_type
+ - interconnects
+ - pinctrl-names
+ - nvidia,num-lanes
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ bus {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ pcie@...03000 {
+ compatible = "nvidia,tegra20-pcie";
+ device_type = "pci";
+ reg = <0x80003000 0x00000800>,
+ <0x80003800 0x00000200>,
+ <0x90000000 0x10000000>;
+ reg-names = "pads", "afi", "cs";
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "intr", "msi";
+ interrupt-parent = <&intc>;
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+ bus-range = <0x00 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ ranges = <0x02000000 0 0x80000000 0x80000000 0 0x00001000>,
+ <0x02000000 0 0x80001000 0x80001000 0 0x00001000>,
+ <0x01000000 0 0 0x82000000 0 0x00010000>,
+ <0x02000000 0 0xa0000000 0xa0000000 0 0x08000000>,
+ <0x42000000 0 0xa8000000 0xa8000000 0 0x18000000>;
+
+ clocks = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 118>;
+ clock-names = "pex", "afi", "pll_e";
+ resets = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 74>;
+ reset-names = "pex", "afi", "pcie_x";
+ power-domains = <&pd_core>;
+ operating-points-v2 = <&pcie_dvfs_opp_table>;
+
+ status = "disabled";
+
+ pci@1,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82000800 0 0x80000000 0 0x1000>;
+ reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <2>;
+ };
+
+ pci@2,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82001000 0 0x80001000 0 0x1000>;
+ reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <2>;
+ };
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ bus {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ pcie@...0 {
+ compatible = "nvidia,tegra30-pcie";
+ device_type = "pci";
+ reg = <0x00003000 0x00000800>,
+ <0x00003800 0x00000200>,
+ <0x10000000 0x10000000>;
+ reg-names = "pads", "afi", "cs";
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "intr", "msi";
+ interrupt-parent = <&intc>;
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+ bus-range = <0x00 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ ranges = <0x02000000 0 0x00000000 0x00000000 0 0x00001000>,
+ <0x02000000 0 0x00001000 0x00001000 0 0x00001000>,
+ <0x02000000 0 0x00004000 0x00004000 0 0x00001000>,
+ <0x01000000 0 0 0x02000000 0 0x00010000>,
+ <0x02000000 0 0x20000000 0x20000000 0 0x08000000>,
+ <0x42000000 0 0x28000000 0x28000000 0 0x18000000>;
+
+ clocks = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 193>,
+ <&tegra_car 215>;
+ clock-names = "pex", "afi", "pll_e", "cml";
+ resets = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 74>;
+ reset-names = "pex", "afi", "pcie_x";
+ power-domains = <&pd_core>;
+ operating-points-v2 = <&pcie_dvfs_opp_table>;
+ status = "disabled";
+
+ pci@1,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82000800 0 0x00000000 0 0x1000>;
+ reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <2>;
+ };
+
+ pci@2,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82001000 0 0x00001000 0 0x1000>;
+ reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <2>;
+ };
+
+ pci@3,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82001800 0 0x00004000 0 0x1000>;
+ reg = <0x001800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <2>;
+ };
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pcie@...3000 {
+ compatible = "nvidia,tegra124-pcie";
+ device_type = "pci";
+ reg = <0x0 0x01003000 0x0 0x00000800>,
+ <0x0 0x01003800 0x0 0x00000800>,
+ <0x0 0x02000000 0x0 0x10000000>;
+ reg-names = "pads", "afi", "cs";
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "intr", "msi";
+ interrupt-parent = <&gic>;
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+ bus-range = <0x00 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ ranges = <0x02000000 0 0x01000000 0x0 0x01000000 0 0x00001000>,
+ <0x02000000 0 0x01001000 0x0 0x01001000 0 0x00001000>,
+ <0x01000000 0 0x0 0x0 0x12000000 0 0x00010000>,
+ <0x02000000 0 0x13000000 0x0 0x13000000 0 0x0d000000>,
+ <0x42000000 0 0x20000000 0x0 0x20000000 0 0x20000000>;
+
+ clocks = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 231>,
+ <&tegra_car 268>;
+ clock-names = "pex", "afi", "pll_e", "cml";
+ resets = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 74>;
+ reset-names = "pex", "afi", "pcie_x";
+ status = "disabled";
+
+ pci@1,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
+ reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <2>;
+ };
+
+ pci@2,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
+ reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <1>;
+ };
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pcie@...3000 {
+ compatible = "nvidia,tegra210-pcie";
+ device_type = "pci";
+ reg = <0x0 0x01003000 0x0 0x00000800>,
+ <0x0 0x01003800 0x0 0x00000800>,
+ <0x0 0x02000000 0x0 0x10000000>;
+ reg-names = "pads", "afi", "cs";
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "intr", "msi";
+ interrupt-parent = <&gic>;
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+
+ bus-range = <0x00 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ ranges = <0x02000000 0 0x01000000 0x0 0x01000000 0 0x00001000>,
+ <0x02000000 0 0x01001000 0x0 0x01001000 0 0x00001000>,
+ <0x01000000 0 0x0 0x0 0x12000000 0 0x00010000>,
+ <0x02000000 0 0x13000000 0x0 0x13000000 0 0x0d000000>,
+ <0x42000000 0 0x20000000 0x0 0x20000000 0 0x20000000>;
+
+ clocks = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 263>,
+ <&tegra_car 300>;
+ clock-names = "pex", "afi", "pll_e", "cml";
+ resets = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 74>;
+ reset-names = "pex", "afi", "pcie_x";
+
+ pinctrl-names = "default", "idle";
+ pinctrl-0 = <&pex_dpd_disable>;
+ pinctrl-1 = <&pex_dpd_enable>;
+
+ status = "disabled";
+
+ pci@1,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
+ reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <4>;
+ };
+
+ pci@2,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
+ reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <1>;
+ };
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/power/tegra186-powergate.h>
+ #include <dt-bindings/memory/tegra186-mc.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pcie@...03000 {
+ compatible = "nvidia,tegra186-pcie";
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_PCX>;
+ device_type = "pci";
+ reg = <0x0 0x10003000 0x0 0x00000800>,
+ <0x0 0x10003800 0x0 0x00000800>,
+ <0x0 0x40000000 0x0 0x10000000>;
+ reg-names = "pads", "afi", "cs";
+
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "intr", "msi";
+ interrupt-parent = <&gic>;
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+
+ bus-range = <0x00 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ ranges = <0x02000000 0 0x10000000 0x0 0x10000000 0 0x00001000>,
+ <0x02000000 0 0x10001000 0x0 0x10001000 0 0x00001000>,
+ <0x02000000 0 0x10004000 0x0 0x10004000 0 0x00001000>,
+ <0x01000000 0 0x0 0x0 0x50000000 0 0x00010000>,
+ <0x02000000 0 0x50100000 0x0 0x50100000 0 0x07f00000>,
+ <0x42000000 0 0x58000000 0x0 0x58000000 0 0x28000000>;
+
+ clocks = <&bpmp 3>,
+ <&bpmp 4>,
+ <&bpmp 512>;
+ clock-names = "pex", "afi", "pll_e";
+
+ resets = <&bpmp 29>,
+ <&bpmp 1>,
+ <&bpmp 30>;
+ reset-names = "pex", "afi", "pcie_x";
+
+ interconnects = <&mc TEGRA186_MEMORY_CLIENT_AFIR &emc>,
+ <&mc TEGRA186_MEMORY_CLIENT_AFIW &emc>;
+ interconnect-names = "dma-mem", "write";
+
+ iommus = <&smmu TEGRA186_SID_AFI>;
+ iommu-map = <0x0 &smmu TEGRA186_SID_AFI 0x1000>;
+ iommu-map-mask = <0x0>;
+
+ status = "disabled";
+
+ pci@1,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82000800 0 0x10000000 0 0x1000>;
+ reg = <0x000800 0 0 0 0>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <2>;
+ };
+
+ pci@2,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82001000 0 0x10001000 0 0x1000>;
+ reg = <0x001000 0 0 0 0>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <1>;
+ };
+
+ pci@3,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82001800 0 0x10004000 0 0x1000>;
+ reg = <0x001800 0 0 0 0>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <1>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
deleted file mode 100644
index d099f3476ccc..000000000000
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
+++ /dev/null
@@ -1,670 +0,0 @@
-NVIDIA Tegra PCIe controller
-
-Required properties:
-- compatible: Must be:
- - "nvidia,tegra20-pcie": for Tegra20
- - "nvidia,tegra30-pcie": for Tegra30
- - "nvidia,tegra124-pcie": for Tegra124 and Tegra132
- - "nvidia,tegra210-pcie": for Tegra210
- - "nvidia,tegra186-pcie": for Tegra186
-- power-domains: To ungate power partition by BPMP powergate driver. Must
- contain BPMP phandle and PCIe power partition ID. This is required only
- for Tegra186.
-- device_type: Must be "pci"
-- reg: A list of physical base address and length for each set of controller
- registers. Must contain an entry for each entry in the reg-names property.
-- reg-names: Must include the following entries:
- "pads": PADS registers
- "afi": AFI registers
- "cs": configuration space region
-- interrupts: A list of interrupt outputs of the controller. Must contain an
- entry for each entry in the interrupt-names property.
-- interrupt-names: Must include the following entries:
- "intr": The Tegra interrupt that is asserted for controller interrupts
- "msi": The Tegra interrupt that is asserted when an MSI is received
-- bus-range: Range of bus numbers associated with this controller
-- #address-cells: Address representation for root ports (must be 3)
- - cell 0 specifies the bus and device numbers of the root port:
- [23:16]: bus number
- [15:11]: device number
- - cell 1 denotes the upper 32 address bits and should be 0
- - cell 2 contains the lower 32 address bits and is used to translate to the
- CPU address space
-- #size-cells: Size representation for root ports (must be 2)
-- ranges: Describes the translation of addresses for root ports and standard
- PCI regions. The entries must be 6 cells each, where the first three cells
- correspond to the address as described for the #address-cells property
- above, the fourth cell is the physical CPU address to translate to and the
- fifth and six cells are as described for the #size-cells property above.
- - The first two entries are expected to translate the addresses for the root
- port registers, which are referenced by the assigned-addresses property of
- the root port nodes (see below).
- - The remaining entries setup the mapping for the standard I/O, memory and
- prefetchable PCI regions. The first cell determines the type of region
- that is setup:
- - 0x81000000: I/O memory region
- - 0x82000000: non-prefetchable memory region
- - 0xc2000000: prefetchable memory region
- Please refer to the standard PCI bus binding document for a more detailed
- explanation.
-- #interrupt-cells: Size representation for interrupts (must be 1)
-- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
- Please refer to the standard PCI bus binding document for a more detailed
- explanation.
-- clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names: Must include the following entries:
- - pex
- - afi
- - pll_e
- - cml (not required for Tegra20)
-- resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
-- reset-names: Must include the following entries:
- - pex
- - afi
- - pcie_x
-
-Optional properties:
-- pinctrl-names: A list of pinctrl state names. Must contain the following
- entries:
- - "default": active state, puts PCIe I/O out of deep power down state
- - "idle": puts PCIe I/O into deep power down state
-- pinctrl-0: phandle for the default/active state of pin configurations.
-- pinctrl-1: phandle for the idle state of pin configurations.
-
-Required properties on Tegra124 and later (deprecated):
-- phys: Must contain an entry for each entry in phy-names.
-- phy-names: Must include the following entries:
- - pcie
-
-These properties are deprecated in favour of per-lane PHYs define in each of
-the root ports (see below).
-
-Power supplies for Tegra20:
-- avdd-pex-supply: Power supply for analog PCIe logic. Must supply 1.05 V.
-- vdd-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.
-- avdd-pex-pll-supply: Power supply for dedicated (internal) PCIe PLL. Must
- supply 1.05 V.
-- avdd-plle-supply: Power supply for PLLE, which is shared with SATA. Must
- supply 1.05 V.
-- vddio-pex-clk-supply: Power supply for PCIe clock. Must supply 3.3 V.
-
-Power supplies for Tegra30:
-- Required:
- - avdd-pex-pll-supply: Power supply for dedicated (internal) PCIe PLL. Must
- supply 1.05 V.
- - avdd-plle-supply: Power supply for PLLE, which is shared with SATA. Must
- supply 1.05 V.
- - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must
- supply 1.8 V.
- - hvdd-pex-supply: High-voltage supply for PCIe I/O and PCIe output clocks.
- Must supply 3.3 V.
-- Optional:
- - If lanes 0 to 3 are used:
- - avdd-pexa-supply: Power supply for analog PCIe logic. Must supply 1.05 V.
- - vdd-pexa-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.
- - If lanes 4 or 5 are used:
- - avdd-pexb-supply: Power supply for analog PCIe logic. Must supply 1.05 V.
- - vdd-pexb-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.
-
-Power supplies for Tegra124:
-- Required:
- - avddio-pex-supply: Power supply for analog PCIe logic. Must supply 1.05 V.
- - dvddio-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.
- - hvdd-pex-supply: High-voltage supply for PCIe I/O and PCIe output clocks.
- Must supply 3.3 V.
- - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must
- supply 2.8-3.3 V.
-
-Power supplies for Tegra210:
-- Required:
- - hvddio-pex-supply: High-voltage supply for PCIe I/O and PCIe output
- clocks. Must supply 1.8 V.
- - dvddio-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.
- - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must
- supply 1.8 V.
-
-Power supplies for Tegra186:
-- Required:
- - dvdd-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.
- - hvdd-pex-pll-supply: High-voltage supply for PLLE (shared with USB3). Must
- supply 1.8 V.
- - hvdd-pex-supply: High-voltage supply for PCIe I/O and PCIe output clocks.
- Must supply 1.8 V.
- - vddio-pexctl-aud-supply: Power supply for PCIe side band signals. Must
- supply 1.8 V.
-
-Root ports are defined as subnodes of the PCIe controller node.
-
-Required properties:
-- device_type: Must be "pci"
-- assigned-addresses: Address and size of the port configuration registers
-- reg: PCI bus address of the root port
-- #address-cells: Must be 3
-- #size-cells: Must be 2
-- ranges: Sub-ranges distributed from the PCIe controller node. An empty
- property is sufficient.
-- nvidia,num-lanes: Number of lanes to use for this port. Valid combinations
- are:
- - Root port 0 uses 4 lanes, root port 1 is unused.
- - Both root ports use 2 lanes.
-
-Required properties for Tegra124 and later:
-- phys: Must contain an phandle to a PHY for each entry in phy-names.
-- phy-names: Must include an entry for each active lane. Note that the number
- of entries does not have to (though usually will) be equal to the specified
- number of lanes in the nvidia,num-lanes property. Entries are of the form
- "pcie-N": where N ranges from 0 to the value specified in nvidia,num-lanes.
-
-Examples:
-=========
-
-Tegra20:
---------
-
-SoC DTSI:
-
- pcie-controller@...03000 {
- compatible = "nvidia,tegra20-pcie";
- device_type = "pci";
- reg = <0x80003000 0x00000800 /* PADS registers */
- 0x80003800 0x00000200 /* AFI registers */
- 0x90000000 0x10000000>; /* configuration space */
- reg-names = "pads", "afi", "cs";
- interrupts = <0 98 0x04 /* controller interrupt */
- 0 99 0x04>; /* MSI interrupt */
- interrupt-names = "intr", "msi";
-
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
-
- bus-range = <0x00 0xff>;
- #address-cells = <3>;
- #size-cells = <2>;
-
- ranges = <0x82000000 0 0x80000000 0x80000000 0 0x00001000 /* port 0 registers */
- 0x82000000 0 0x80001000 0x80001000 0 0x00001000 /* port 1 registers */
- 0x81000000 0 0 0x82000000 0 0x00010000 /* downstream I/O */
- 0x82000000 0 0xa0000000 0xa0000000 0 0x10000000 /* non-prefetchable memory */
- 0xc2000000 0 0xb0000000 0xb0000000 0 0x10000000>; /* prefetchable memory */
-
- clocks = <&tegra_car 70>, <&tegra_car 72>, <&tegra_car 118>;
- clock-names = "pex", "afi", "pll_e";
- resets = <&tegra_car 70>, <&tegra_car 72>, <&tegra_car 74>;
- reset-names = "pex", "afi", "pcie_x";
- status = "disabled";
-
- pci@1,0 {
- device_type = "pci";
- assigned-addresses = <0x82000800 0 0x80000000 0 0x1000>;
- reg = <0x000800 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
-
- ranges;
-
- nvidia,num-lanes = <2>;
- };
-
- pci@2,0 {
- device_type = "pci";
- assigned-addresses = <0x82001000 0 0x80001000 0 0x1000>;
- reg = <0x001000 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
-
- ranges;
-
- nvidia,num-lanes = <2>;
- };
- };
-
-Board DTS:
-
- pcie-controller@...03000 {
- status = "okay";
-
- vdd-supply = <&pci_vdd_reg>;
- pex-clk-supply = <&pci_clk_reg>;
-
- /* root port 00:01.0 */
- pci@1,0 {
- status = "okay";
-
- /* bridge 01:00.0 (optional) */
- pci@0,0 {
- reg = <0x010000 0 0 0 0>;
-
- #address-cells = <3>;
- #size-cells = <2>;
-
- device_type = "pci";
-
- /* endpoint 02:00.0 */
- pci@0,0 {
- reg = <0x020000 0 0 0 0>;
- };
- };
- };
- };
-
-Note that devices on the PCI bus are dynamically discovered using PCI's bus
-enumeration and therefore don't need corresponding device nodes in DT. However
-if a device on the PCI bus provides a non-probeable bus such as I2C or SPI,
-device nodes need to be added in order to allow the bus' children to be
-instantiated at the proper location in the operating system's device tree (as
-illustrated by the optional nodes in the example above).
-
-Tegra30:
---------
-
-SoC DTSI:
-
- pcie-controller@...0 {
- compatible = "nvidia,tegra30-pcie";
- device_type = "pci";
- reg = <0x00003000 0x00000800 /* PADS registers */
- 0x00003800 0x00000200 /* AFI registers */
- 0x10000000 0x10000000>; /* configuration space */
- reg-names = "pads", "afi", "cs";
- interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH /* controller interrupt */
- GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
- interrupt-names = "intr", "msi";
-
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
-
- bus-range = <0x00 0xff>;
- #address-cells = <3>;
- #size-cells = <2>;
-
- ranges = <0x82000000 0 0x00000000 0x00000000 0 0x00001000 /* port 0 configuration space */
- 0x82000000 0 0x00001000 0x00001000 0 0x00001000 /* port 1 configuration space */
- 0x82000000 0 0x00004000 0x00004000 0 0x00001000 /* port 2 configuration space */
- 0x81000000 0 0 0x02000000 0 0x00010000 /* downstream I/O */
- 0x82000000 0 0x20000000 0x20000000 0 0x08000000 /* non-prefetchable memory */
- 0xc2000000 0 0x28000000 0x28000000 0 0x18000000>; /* prefetchable memory */
-
- clocks = <&tegra_car TEGRA30_CLK_PCIE>,
- <&tegra_car TEGRA30_CLK_AFI>,
- <&tegra_car TEGRA30_CLK_PLL_E>,
- <&tegra_car TEGRA30_CLK_CML0>;
- clock-names = "pex", "afi", "pll_e", "cml";
- resets = <&tegra_car 70>,
- <&tegra_car 72>,
- <&tegra_car 74>;
- reset-names = "pex", "afi", "pcie_x";
- status = "disabled";
-
- pci@1,0 {
- device_type = "pci";
- assigned-addresses = <0x82000800 0 0x00000000 0 0x1000>;
- reg = <0x000800 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <2>;
- };
-
- pci@2,0 {
- device_type = "pci";
- assigned-addresses = <0x82001000 0 0x00001000 0 0x1000>;
- reg = <0x001000 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <2>;
- };
-
- pci@3,0 {
- device_type = "pci";
- assigned-addresses = <0x82001800 0 0x00004000 0 0x1000>;
- reg = <0x001800 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <2>;
- };
- };
-
-Board DTS:
-
- pcie-controller@...0 {
- status = "okay";
-
- avdd-pexa-supply = <&ldo1_reg>;
- vdd-pexa-supply = <&ldo1_reg>;
- avdd-pexb-supply = <&ldo1_reg>;
- vdd-pexb-supply = <&ldo1_reg>;
- avdd-pex-pll-supply = <&ldo1_reg>;
- avdd-plle-supply = <&ldo1_reg>;
- vddio-pex-ctl-supply = <&sys_3v3_reg>;
- hvdd-pex-supply = <&sys_3v3_pexs_reg>;
-
- pci@1,0 {
- status = "okay";
- };
-
- pci@3,0 {
- status = "okay";
- };
- };
-
-Tegra124:
----------
-
-SoC DTSI:
-
- pcie-controller@...3000 {
- compatible = "nvidia,tegra124-pcie";
- device_type = "pci";
- reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */
- 0x0 0x01003800 0x0 0x00000800 /* AFI registers */
- 0x0 0x02000000 0x0 0x10000000>; /* configuration space */
- reg-names = "pads", "afi", "cs";
- interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
- <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
- interrupt-names = "intr", "msi";
-
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
-
- bus-range = <0x00 0xff>;
- #address-cells = <3>;
- #size-cells = <2>;
-
- ranges = <0x82000000 0 0x01000000 0x0 0x01000000 0 0x00001000 /* port 0 configuration space */
- 0x82000000 0 0x01001000 0x0 0x01001000 0 0x00001000 /* port 1 configuration space */
- 0x81000000 0 0x0 0x0 0x12000000 0 0x00010000 /* downstream I/O (64 KiB) */
- 0x82000000 0 0x13000000 0x0 0x13000000 0 0x0d000000 /* non-prefetchable memory (208 MiB) */
- 0xc2000000 0 0x20000000 0x0 0x20000000 0 0x20000000>; /* prefetchable memory (512 MiB) */
-
- clocks = <&tegra_car TEGRA124_CLK_PCIE>,
- <&tegra_car TEGRA124_CLK_AFI>,
- <&tegra_car TEGRA124_CLK_PLL_E>,
- <&tegra_car TEGRA124_CLK_CML0>;
- clock-names = "pex", "afi", "pll_e", "cml";
- resets = <&tegra_car 70>,
- <&tegra_car 72>,
- <&tegra_car 74>;
- reset-names = "pex", "afi", "pcie_x";
- status = "disabled";
-
- pci@1,0 {
- device_type = "pci";
- assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
- reg = <0x000800 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <2>;
- };
-
- pci@2,0 {
- device_type = "pci";
- assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
- reg = <0x001000 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <1>;
- };
- };
-
-Board DTS:
-
- pcie-controller@...3000 {
- status = "okay";
-
- avddio-pex-supply = <&vdd_1v05_run>;
- dvddio-pex-supply = <&vdd_1v05_run>;
- avdd-pex-pll-supply = <&vdd_1v05_run>;
- hvdd-pex-supply = <&vdd_3v3_lp0>;
- hvdd-pex-pll-e-supply = <&vdd_3v3_lp0>;
- vddio-pex-ctl-supply = <&vdd_3v3_lp0>;
- avdd-pll-erefe-supply = <&avdd_1v05_run>;
-
- /* Mini PCIe */
- pci@1,0 {
- phys = <&{/padctl@...9f000/pads/pcie/lanes/pcie-4}>;
- phy-names = "pcie-0";
- status = "okay";
- };
-
- /* Gigabit Ethernet */
- pci@2,0 {
- phys = <&{/padctl@...9f000/pads/pcie/lanes/pcie-2}>;
- phy-names = "pcie-0";
- status = "okay";
- };
- };
-
-Tegra210:
----------
-
-SoC DTSI:
-
- pcie-controller@...3000 {
- compatible = "nvidia,tegra210-pcie";
- device_type = "pci";
- reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */
- 0x0 0x01003800 0x0 0x00000800 /* AFI registers */
- 0x0 0x02000000 0x0 0x10000000>; /* configuration space */
- reg-names = "pads", "afi", "cs";
- interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
- <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
- interrupt-names = "intr", "msi";
-
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
-
- bus-range = <0x00 0xff>;
- #address-cells = <3>;
- #size-cells = <2>;
-
- ranges = <0x82000000 0 0x01000000 0x0 0x01000000 0 0x00001000 /* port 0 configuration space */
- 0x82000000 0 0x01001000 0x0 0x01001000 0 0x00001000 /* port 1 configuration space */
- 0x81000000 0 0x0 0x0 0x12000000 0 0x00010000 /* downstream I/O (64 KiB) */
- 0x82000000 0 0x13000000 0x0 0x13000000 0 0x0d000000 /* non-prefetchable memory (208 MiB) */
- 0xc2000000 0 0x20000000 0x0 0x20000000 0 0x20000000>; /* prefetchable memory (512 MiB) */
-
- clocks = <&tegra_car TEGRA210_CLK_PCIE>,
- <&tegra_car TEGRA210_CLK_AFI>,
- <&tegra_car TEGRA210_CLK_PLL_E>,
- <&tegra_car TEGRA210_CLK_CML0>;
- clock-names = "pex", "afi", "pll_e", "cml";
- resets = <&tegra_car 70>,
- <&tegra_car 72>,
- <&tegra_car 74>;
- reset-names = "pex", "afi", "pcie_x";
- status = "disabled";
-
- pci@1,0 {
- device_type = "pci";
- assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
- reg = <0x000800 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <4>;
- };
-
- pci@2,0 {
- device_type = "pci";
- assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
- reg = <0x001000 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <1>;
- };
- };
-
-Board DTS:
-
- pcie-controller@...3000 {
- status = "okay";
-
- avdd-pll-uerefe-supply = <&avdd_1v05_pll>;
- hvddio-pex-supply = <&vdd_1v8>;
- dvddio-pex-supply = <&vdd_pex_1v05>;
- dvdd-pex-pll-supply = <&vdd_pex_1v05>;
- hvdd-pex-pll-e-supply = <&vdd_1v8>;
- vddio-pex-ctl-supply = <&vdd_1v8>;
-
- pci@1,0 {
- phys = <&{/padctl@...9f000/pads/pcie/lanes/pcie-0}>,
- <&{/padctl@...9f000/pads/pcie/lanes/pcie-1}>,
- <&{/padctl@...9f000/pads/pcie/lanes/pcie-2}>,
- <&{/padctl@...9f000/pads/pcie/lanes/pcie-3}>;
- phy-names = "pcie-0", "pcie-1", "pcie-2", "pcie-3";
- status = "okay";
- };
-
- pci@2,0 {
- phys = <&{/padctl@...9f000/pads/pcie/lanes/pcie-4}>;
- phy-names = "pcie-0";
- status = "okay";
- };
- };
-
-Tegra186:
----------
-
-SoC DTSI:
-
- pcie@...03000 {
- compatible = "nvidia,tegra186-pcie";
- power-domains = <&bpmp TEGRA186_POWER_DOMAIN_PCX>;
- device_type = "pci";
- reg = <0x0 0x10003000 0x0 0x00000800 /* PADS registers */
- 0x0 0x10003800 0x0 0x00000800 /* AFI registers */
- 0x0 0x40000000 0x0 0x10000000>; /* configuration space */
- reg-names = "pads", "afi", "cs";
-
- interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
- <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
- interrupt-names = "intr", "msi";
-
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
-
- bus-range = <0x00 0xff>;
- #address-cells = <3>;
- #size-cells = <2>;
-
- ranges = <0x82000000 0 0x10000000 0x0 0x10000000 0 0x00001000 /* port 0 configuration space */
- 0x82000000 0 0x10001000 0x0 0x10001000 0 0x00001000 /* port 1 configuration space */
- 0x82000000 0 0x10004000 0x0 0x10004000 0 0x00001000 /* port 2 configuration space */
- 0x81000000 0 0x0 0x0 0x50000000 0 0x00010000 /* downstream I/O (64 KiB) */
- 0x82000000 0 0x50100000 0x0 0x50100000 0 0x07F00000 /* non-prefetchable memory (127 MiB) */
- 0xc2000000 0 0x58000000 0x0 0x58000000 0 0x28000000>; /* prefetchable memory (640 MiB) */
-
- clocks = <&bpmp TEGRA186_CLK_AFI>,
- <&bpmp TEGRA186_CLK_PCIE>,
- <&bpmp TEGRA186_CLK_PLLE>;
- clock-names = "afi", "pex", "pll_e";
-
- resets = <&bpmp TEGRA186_RESET_AFI>,
- <&bpmp TEGRA186_RESET_PCIE>,
- <&bpmp TEGRA186_RESET_PCIEXCLK>;
- reset-names = "afi", "pex", "pcie_x";
-
- status = "disabled";
-
- pci@1,0 {
- device_type = "pci";
- assigned-addresses = <0x82000800 0 0x10000000 0 0x1000>;
- reg = <0x000800 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <2>;
- };
-
- pci@2,0 {
- device_type = "pci";
- assigned-addresses = <0x82001000 0 0x10001000 0 0x1000>;
- reg = <0x001000 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <1>;
- };
-
- pci@3,0 {
- device_type = "pci";
- assigned-addresses = <0x82001800 0 0x10004000 0 0x1000>;
- reg = <0x001800 0 0 0 0>;
- status = "disabled";
-
- #address-cells = <3>;
- #size-cells = <2>;
- ranges;
-
- nvidia,num-lanes = <1>;
- };
- };
-
-Board DTS:
-
- pcie@...03000 {
- status = "okay";
-
- dvdd-pex-supply = <&vdd_pex>;
- hvdd-pex-pll-supply = <&vdd_1v8>;
- hvdd-pex-supply = <&vdd_1v8>;
- vddio-pexctl-aud-supply = <&vdd_1v8>;
-
- pci@1,0 {
- nvidia,num-lanes = <4>;
- status = "okay";
- };
-
- pci@2,0 {
- nvidia,num-lanes = <0>;
- status = "disabled";
- };
-
- pci@3,0 {
- nvidia,num-lanes = <1>;
- status = "disabled";
- };
- };
--
2.50.1
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