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Diffstat (limited to 'Documentation/devicetree/bindings/pci/qcom,pcie-sc8280xp.yaml')
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1 files changed, 180 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-sc8280xp.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-sc8280xp.yaml new file mode 100644 index 0000000000..25c9f13ae9 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-sc8280xp.yaml @@ -0,0 +1,180 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/qcom,pcie-sc8280xp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SC8280XP PCI Express Root Complex + +maintainers: + - Bjorn Andersson <andersson@kernel.org> + - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> + +description: + Qualcomm SC8280XP SoC PCIe root complex controller is based on the Synopsys + DesignWare PCIe IP. + +properties: + compatible: + enum: + - qcom,pcie-sa8540p + - qcom,pcie-sc8280xp + + 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 + + clocks: + minItems: 8 + maxItems: 9 + + clock-names: + minItems: 8 + items: + - 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: ddrss_sf_tbu # PCIe SF TBU clock + - const: noc_aggr_4 # NoC aggregate 4 clock + - const: noc_aggr_south_sf # NoC aggregate South SF clock + - const: cnoc_qx # Configuration NoC QX clock + + resets: + maxItems: 1 + + reset-names: + items: + - const: pci + + vddpe-3v3-supply: + description: A phandle to the PCIe endpoint power supply + +required: + - interconnects + - interconnect-names + +allOf: + - $ref: qcom,pcie-common.yaml# + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-sc8280xp + then: + properties: + interrupts: + minItems: 4 + maxItems: 4 + interrupt-names: + items: + - const: msi0 + - const: msi1 + - const: msi2 + - const: msi3 + else: + properties: + interrupts: + maxItems: 1 + interrupt-names: + items: + - const: msi + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,gcc-sc8280xp.h> + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interconnect/qcom,sc8280xp.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + pcie@1c20000 { + compatible = "qcom,pcie-sc8280xp"; + reg = <0x0 0x01c20000 0x0 0x3000>, + <0x0 0x3c000000 0x0 0xf1d>, + <0x0 0x3c000f20 0x0 0xa8>, + <0x0 0x3c001000 0x0 0x1000>, + <0x0 0x3c100000 0x0 0x100000>, + <0x0 0x01c23000 0x0 0x1000>; + reg-names = "parf", "dbi", "elbi", "atu", "config", "mhi"; + ranges = <0x01000000 0x0 0x00000000 0x0 0x3c200000 0x0 0x100000>, + <0x02000000 0x0 0x3c300000 0x0 0x3c300000 0x0 0x1d00000>; + + bus-range = <0x00 0xff>; + device_type = "pci"; + linux,pci-domain = <2>; + num-lanes = <4>; + + #address-cells = <3>; + #size-cells = <2>; + + assigned-clocks = <&gcc GCC_PCIE_2A_AUX_CLK>; + assigned-clock-rates = <19200000>; + clocks = <&gcc GCC_PCIE_2A_AUX_CLK>, + <&gcc GCC_PCIE_2A_CFG_AHB_CLK>, + <&gcc GCC_PCIE_2A_MSTR_AXI_CLK>, + <&gcc GCC_PCIE_2A_SLV_AXI_CLK>, + <&gcc GCC_PCIE_2A_SLV_Q2A_AXI_CLK>, + <&gcc GCC_DDRSS_PCIE_SF_TBU_CLK>, + <&gcc GCC_AGGRE_NOC_PCIE_4_AXI_CLK>, + <&gcc GCC_AGGRE_NOC_PCIE_SOUTH_SF_AXI_CLK>; + clock-names = "aux", + "cfg", + "bus_master", + "bus_slave", + "slave_q2a", + "ddrss_sf_tbu", + "noc_aggr_4", + "noc_aggr_south_sf"; + + dma-coherent; + + interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 523 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 524 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 525 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "msi0", "msi1", "msi2", "msi3"; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0x7>; + interrupt-map = <0 0 0 1 &intc 0 0 GIC_SPI 530 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 2 &intc 0 0 GIC_SPI 531 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 3 &intc 0 0 GIC_SPI 532 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 4 &intc 0 0 GIC_SPI 533 IRQ_TYPE_LEVEL_HIGH>; + + interconnects = <&aggre2_noc MASTER_PCIE_2A 0 &mc_virt SLAVE_EBI1 0>, + <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_PCIE_2A 0>; + interconnect-names = "pcie-mem", "cpu-pcie"; + + phys = <&pcie2a_phy>; + phy-names = "pciephy"; + + pinctrl-0 = <&pcie2a_default>; + pinctrl-names = "default"; + + power-domains = <&gcc PCIE_2A_GDSC>; + + resets = <&gcc GCC_PCIE_2A_BCR>; + reset-names = "pci"; + + perst-gpios = <&tlmm 143 GPIO_ACTIVE_LOW>; + wake-gpios = <&tlmm 145 GPIO_ACTIVE_LOW>; + vddpe-3v3-supply = <&vreg_nvme>; + }; + }; |