| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/pci/qcom,pcie.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Qualcomm PCI express root complex |
| |
| maintainers: |
| - Bjorn Andersson <bjorn.andersson@linaro.org> |
| - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> |
| |
| description: | |
| Qualcomm PCIe root complex controller is based on the Synopsys DesignWare |
| PCIe IP. |
| |
| properties: |
| compatible: |
| oneOf: |
| - enum: |
| - qcom,pcie-apq8064 |
| - qcom,pcie-apq8084 |
| - qcom,pcie-ipq4019 |
| - qcom,pcie-ipq6018 |
| - qcom,pcie-ipq8064 |
| - qcom,pcie-ipq8064-v2 |
| - qcom,pcie-ipq8074 |
| - qcom,pcie-ipq8074-gen3 |
| - qcom,pcie-msm8996 |
| - qcom,pcie-qcs404 |
| - qcom,pcie-sdm845 |
| - qcom,pcie-sdx55 |
| - items: |
| - const: qcom,pcie-msm8998 |
| - const: qcom,pcie-msm8996 |
| |
| reg: |
| minItems: 4 |
| maxItems: 6 |
| |
| reg-names: |
| minItems: 4 |
| maxItems: 6 |
| |
| interrupts: |
| minItems: 1 |
| maxItems: 8 |
| |
| interrupt-names: |
| minItems: 1 |
| maxItems: 8 |
| |
| iommu-map: |
| minItems: 1 |
| maxItems: 16 |
| |
| # Common definitions for clocks, clock-names and reset. |
| # Platform constraints are described later. |
| clocks: |
| minItems: 3 |
| maxItems: 13 |
| |
| clock-names: |
| minItems: 3 |
| maxItems: 13 |
| |
| dma-coherent: true |
| |
| interconnects: |
| maxItems: 2 |
| |
| interconnect-names: |
| items: |
| - const: pcie-mem |
| - const: cpu-pcie |
| |
| resets: |
| minItems: 1 |
| maxItems: 12 |
| |
| reset-names: |
| minItems: 1 |
| maxItems: 12 |
| |
| vdda-supply: |
| description: A phandle to the core analog power supply |
| |
| vdda_phy-supply: |
| description: A phandle to the core analog power supply for PHY |
| |
| vdda_refclk-supply: |
| description: A phandle to the core analog power supply for IC which generates reference clock |
| |
| phys: |
| maxItems: 1 |
| |
| phy-names: |
| items: |
| - const: pciephy |
| |
| power-domains: |
| maxItems: 1 |
| |
| perst-gpios: |
| description: GPIO controlled connection to PERST# signal |
| maxItems: 1 |
| |
| required-opps: |
| maxItems: 1 |
| |
| wake-gpios: |
| description: GPIO controlled connection to WAKE# signal |
| maxItems: 1 |
| |
| required: |
| - compatible |
| - reg |
| - reg-names |
| - interrupt-map-mask |
| - interrupt-map |
| - clocks |
| - clock-names |
| |
| anyOf: |
| - required: |
| - interrupts |
| - interrupt-names |
| - "#interrupt-cells" |
| - required: |
| - msi-map |
| |
| allOf: |
| - $ref: /schemas/pci/pci-bus.yaml# |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-apq8064 |
| - qcom,pcie-ipq4019 |
| - qcom,pcie-ipq8064 |
| - qcom,pcie-ipq8064v2 |
| - qcom,pcie-ipq8074 |
| - qcom,pcie-qcs404 |
| then: |
| properties: |
| reg: |
| minItems: 4 |
| maxItems: 4 |
| reg-names: |
| items: |
| - const: dbi # DesignWare PCIe registers |
| - const: elbi # External local bus interface registers |
| - const: parf # Qualcomm specific registers |
| - const: config # PCIe configuration space |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-ipq6018 |
| - qcom,pcie-ipq8074-gen3 |
| then: |
| properties: |
| reg: |
| minItems: 5 |
| maxItems: 5 |
| reg-names: |
| items: |
| - const: dbi # DesignWare PCIe registers |
| - const: elbi # External local bus interface registers |
| - const: atu # ATU address space |
| - const: parf # Qualcomm specific registers |
| - const: config # PCIe configuration space |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-apq8084 |
| - qcom,pcie-msm8996 |
| - qcom,pcie-sdm845 |
| then: |
| properties: |
| reg: |
| minItems: 4 |
| maxItems: 5 |
| reg-names: |
| minItems: 4 |
| items: |
| - const: parf # Qualcomm specific registers |
| - const: dbi # DesignWare PCIe registers |
| - const: elbi # External local bus interface registers |
| - const: config # PCIe configuration space |
| - const: mhi # MHI registers |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-sdx55 |
| then: |
| properties: |
| reg: |
| minItems: 5 |
| maxItems: 6 |
| reg-names: |
| minItems: 5 |
| items: |
| - const: parf # Qualcomm specific registers |
| - const: dbi # DesignWare PCIe registers |
| - const: elbi # External local bus interface registers |
| - const: atu # ATU address space |
| - const: config # PCIe configuration space |
| - const: mhi # MHI registers |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-apq8064 |
| - qcom,pcie-ipq8064 |
| - qcom,pcie-ipq8064v2 |
| then: |
| properties: |
| clocks: |
| minItems: 3 |
| maxItems: 5 |
| clock-names: |
| minItems: 3 |
| items: |
| - const: core # Clocks the pcie hw block |
| - const: iface # Configuration AHB clock |
| - const: phy # Clocks the pcie PHY block |
| - const: aux # Clocks the pcie AUX block, not on apq8064 |
| - const: ref # Clocks the pcie ref block, not on apq8064 |
| resets: |
| minItems: 5 |
| maxItems: 6 |
| reset-names: |
| minItems: 5 |
| items: |
| - const: axi # AXI reset |
| - const: ahb # AHB reset |
| - const: por # POR reset |
| - const: pci # PCI reset |
| - const: phy # PHY reset |
| - const: ext # EXT reset, not on apq8064 |
| required: |
| - vdda-supply |
| - vdda_phy-supply |
| - vdda_refclk-supply |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-apq8084 |
| then: |
| properties: |
| clocks: |
| minItems: 4 |
| maxItems: 4 |
| clock-names: |
| items: |
| - const: iface # Configuration AHB clock |
| - const: master_bus # Master AXI clock |
| - const: slave_bus # Slave AXI clock |
| - const: aux # Auxiliary (AUX) clock |
| resets: |
| maxItems: 1 |
| reset-names: |
| items: |
| - const: core # Core reset |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-ipq4019 |
| then: |
| properties: |
| clocks: |
| minItems: 3 |
| maxItems: 3 |
| clock-names: |
| items: |
| - const: aux # Auxiliary (AUX) clock |
| - const: master_bus # Master AXI clock |
| - const: slave_bus # Slave AXI clock |
| resets: |
| minItems: 12 |
| maxItems: 12 |
| reset-names: |
| items: |
| - const: axi_m # AXI master reset |
| - const: axi_s # AXI slave reset |
| - const: pipe # PIPE reset |
| - const: axi_m_vmid # VMID reset |
| - const: axi_s_xpu # XPU reset |
| - const: parf # PARF reset |
| - const: phy # PHY reset |
| - const: axi_m_sticky # AXI sticky reset |
| - const: pipe_sticky # PIPE sticky reset |
| - const: pwr # PWR reset |
| - const: ahb # AHB reset |
| - const: phy_ahb # PHY AHB reset |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-msm8996 |
| then: |
| properties: |
| clocks: |
| minItems: 5 |
| maxItems: 5 |
| clock-names: |
| items: |
| - const: pipe # Pipe Clock driving internal logic |
| - const: aux # Auxiliary (AUX) clock |
| - const: cfg # Configuration clock |
| - const: bus_master # Master AXI clock |
| - const: bus_slave # Slave AXI clock |
| resets: false |
| reset-names: false |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-ipq8074 |
| then: |
| properties: |
| clocks: |
| minItems: 5 |
| maxItems: 5 |
| clock-names: |
| items: |
| - const: iface # PCIe to SysNOC BIU clock |
| - const: axi_m # AXI Master clock |
| - const: axi_s # AXI Slave clock |
| - const: ahb # AHB clock |
| - const: aux # Auxiliary clock |
| resets: |
| minItems: 7 |
| maxItems: 7 |
| reset-names: |
| items: |
| - const: pipe # PIPE reset |
| - const: sleep # Sleep reset |
| - const: sticky # Core Sticky reset |
| - const: axi_m # AXI Master reset |
| - const: axi_s # AXI Slave reset |
| - const: ahb # AHB Reset |
| - const: axi_m_sticky # AXI Master Sticky reset |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-ipq6018 |
| - qcom,pcie-ipq8074-gen3 |
| then: |
| properties: |
| clocks: |
| minItems: 5 |
| maxItems: 5 |
| clock-names: |
| items: |
| - const: iface # PCIe to SysNOC BIU clock |
| - const: axi_m # AXI Master clock |
| - const: axi_s # AXI Slave clock |
| - const: axi_bridge # AXI bridge clock |
| - const: rchng |
| resets: |
| minItems: 8 |
| maxItems: 8 |
| reset-names: |
| items: |
| - const: pipe # PIPE reset |
| - const: sleep # Sleep reset |
| - const: sticky # Core Sticky reset |
| - const: axi_m # AXI Master reset |
| - const: axi_s # AXI Slave reset |
| - const: ahb # AHB Reset |
| - const: axi_m_sticky # AXI Master Sticky reset |
| - const: axi_s_sticky # AXI Slave Sticky reset |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-qcs404 |
| then: |
| properties: |
| clocks: |
| minItems: 4 |
| maxItems: 4 |
| clock-names: |
| items: |
| - const: iface # AHB clock |
| - const: aux # Auxiliary clock |
| - const: master_bus # AXI Master clock |
| - const: slave_bus # AXI Slave clock |
| resets: |
| minItems: 6 |
| maxItems: 6 |
| reset-names: |
| items: |
| - const: axi_m # AXI Master reset |
| - const: axi_s # AXI Slave reset |
| - const: axi_m_sticky # AXI Master Sticky reset |
| - const: pipe_sticky # PIPE sticky reset |
| - const: pwr # PWR reset |
| - const: ahb # AHB reset |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-sdm845 |
| then: |
| oneOf: |
| # Unfortunately the "optional" ref clock is used in the middle of the list |
| - properties: |
| clocks: |
| minItems: 8 |
| maxItems: 8 |
| clock-names: |
| items: |
| - const: pipe # PIPE clock |
| - const: aux # Auxiliary clock |
| - const: cfg # Configuration clock |
| - const: bus_master # Master AXI clock |
| - const: bus_slave # Slave AXI clock |
| - const: slave_q2a # Slave Q2A clock |
| - const: ref # REFERENCE clock |
| - const: tbu # PCIe TBU clock |
| - properties: |
| clocks: |
| minItems: 7 |
| maxItems: 7 |
| clock-names: |
| items: |
| - const: pipe # PIPE clock |
| - const: aux # Auxiliary clock |
| - const: cfg # Configuration clock |
| - const: bus_master # Master AXI clock |
| - const: bus_slave # Slave AXI clock |
| - const: slave_q2a # Slave Q2A clock |
| - const: tbu # PCIe TBU clock |
| properties: |
| resets: |
| maxItems: 1 |
| reset-names: |
| items: |
| - const: pci # PCIe core reset |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-sdx55 |
| then: |
| properties: |
| clocks: |
| minItems: 7 |
| maxItems: 7 |
| clock-names: |
| items: |
| - const: pipe # PIPE clock |
| - const: aux # Auxiliary clock |
| - const: cfg # Configuration clock |
| - const: bus_master # Master AXI clock |
| - const: bus_slave # Slave AXI clock |
| - const: slave_q2a # Slave Q2A clock |
| - const: sleep # PCIe Sleep clock |
| resets: |
| maxItems: 1 |
| reset-names: |
| items: |
| - const: pci # PCIe core reset |
| |
| - if: |
| not: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-apq8064 |
| - qcom,pcie-ipq4019 |
| - qcom,pcie-ipq8064 |
| - qcom,pcie-ipq8064v2 |
| - qcom,pcie-ipq8074 |
| - qcom,pcie-ipq8074-gen3 |
| - qcom,pcie-qcs404 |
| then: |
| required: |
| - power-domains |
| |
| - if: |
| not: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-msm8996 |
| then: |
| required: |
| - resets |
| - reset-names |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-msm8996 |
| - qcom,pcie-sdm845 |
| then: |
| oneOf: |
| - properties: |
| interrupts: |
| maxItems: 1 |
| interrupt-names: |
| items: |
| - const: msi |
| - properties: |
| interrupts: |
| minItems: 8 |
| interrupt-names: |
| items: |
| - const: msi0 |
| - const: msi1 |
| - const: msi2 |
| - const: msi3 |
| - const: msi4 |
| - const: msi5 |
| - const: msi6 |
| - const: msi7 |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - qcom,pcie-apq8064 |
| - qcom,pcie-apq8084 |
| - qcom,pcie-ipq4019 |
| - qcom,pcie-ipq6018 |
| - qcom,pcie-ipq8064 |
| - qcom,pcie-ipq8064-v2 |
| - qcom,pcie-ipq8074 |
| - qcom,pcie-ipq8074-gen3 |
| - qcom,pcie-qcs404 |
| then: |
| properties: |
| interrupts: |
| maxItems: 1 |
| interrupt-names: |
| items: |
| - const: msi |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| pcie@1b500000 { |
| compatible = "qcom,pcie-ipq8064"; |
| reg = <0x1b500000 0x1000>, |
| <0x1b502000 0x80>, |
| <0x1b600000 0x100>, |
| <0x0ff00000 0x100000>; |
| reg-names = "dbi", "elbi", "parf", "config"; |
| device_type = "pci"; |
| linux,pci-domain = <0>; |
| bus-range = <0x00 0xff>; |
| num-lanes = <1>; |
| #address-cells = <3>; |
| #size-cells = <2>; |
| ranges = <0x81000000 0 0 0x0fe00000 0 0x00100000>, |
| <0x82000000 0 0 0x08000000 0 0x07e00000>; |
| interrupts = <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-names = "msi"; |
| #interrupt-cells = <1>; |
| interrupt-map-mask = <0 0 0 0x7>; |
| interrupt-map = <0 0 0 1 &intc 0 36 IRQ_TYPE_LEVEL_HIGH>, |
| <0 0 0 2 &intc 0 37 IRQ_TYPE_LEVEL_HIGH>, |
| <0 0 0 3 &intc 0 38 IRQ_TYPE_LEVEL_HIGH>, |
| <0 0 0 4 &intc 0 39 IRQ_TYPE_LEVEL_HIGH>; |
| clocks = <&gcc 41>, |
| <&gcc 43>, |
| <&gcc 44>, |
| <&gcc 42>, |
| <&gcc 248>; |
| clock-names = "core", "iface", "phy", "aux", "ref"; |
| resets = <&gcc 27>, |
| <&gcc 26>, |
| <&gcc 25>, |
| <&gcc 24>, |
| <&gcc 23>, |
| <&gcc 22>; |
| reset-names = "axi", "ahb", "por", "pci", "phy", "ext"; |
| pinctrl-0 = <&pcie_pins_default>; |
| pinctrl-names = "default"; |
| vdda-supply = <&pm8921_s3>; |
| vdda_phy-supply = <&pm8921_lvs6>; |
| vdda_refclk-supply = <&ext_3p3v>; |
| }; |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| #include <dt-bindings/gpio/gpio.h> |
| pcie@fc520000 { |
| compatible = "qcom,pcie-apq8084"; |
| reg = <0xfc520000 0x2000>, |
| <0xff000000 0x1000>, |
| <0xff001000 0x1000>, |
| <0xff002000 0x2000>; |
| reg-names = "parf", "dbi", "elbi", "config"; |
| device_type = "pci"; |
| linux,pci-domain = <0>; |
| bus-range = <0x00 0xff>; |
| num-lanes = <1>; |
| #address-cells = <3>; |
| #size-cells = <2>; |
| ranges = <0x81000000 0 0 0xff200000 0 0x00100000>, |
| <0x82000000 0 0x00300000 0xff300000 0 0x00d00000>; |
| interrupts = <GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-names = "msi"; |
| #interrupt-cells = <1>; |
| interrupt-map-mask = <0 0 0 0x7>; |
| interrupt-map = <0 0 0 1 &intc 0 244 IRQ_TYPE_LEVEL_HIGH>, |
| <0 0 0 2 &intc 0 245 IRQ_TYPE_LEVEL_HIGH>, |
| <0 0 0 3 &intc 0 247 IRQ_TYPE_LEVEL_HIGH>, |
| <0 0 0 4 &intc 0 248 IRQ_TYPE_LEVEL_HIGH>; |
| clocks = <&gcc 324>, |
| <&gcc 325>, |
| <&gcc 327>, |
| <&gcc 323>; |
| clock-names = "iface", "master_bus", "slave_bus", "aux"; |
| resets = <&gcc 81>; |
| reset-names = "core"; |
| power-domains = <&gcc 1>; |
| vdda-supply = <&pma8084_l3>; |
| phys = <&pciephy0>; |
| phy-names = "pciephy"; |
| perst-gpios = <&tlmm 70 GPIO_ACTIVE_LOW>; |
| pinctrl-0 = <&pcie0_pins_default>; |
| pinctrl-names = "default"; |
| }; |
| ... |
