1TI Keystone PCIe interface 2 3Keystone PCI host Controller is based on the Synopsys DesignWare PCI 4hardware version 3.65. It shares common functions with the PCIe DesignWare 5core driver and inherits common properties defined in 6Documentation/devicetree/bindings/pci/designware-pcie.txt 7 8Please refer to Documentation/devicetree/bindings/pci/designware-pcie.txt 9for the details of DesignWare DT bindings. Additional properties are 10described here as well as properties that are not applicable. 11 12Required Properties:- 13 14compatibility: "ti,keystone-pcie" 15reg: index 1 is the base address and length of DW application registers. 16 index 2 is the base address and length of PCI device ID register. 17 18pcie_msi_intc : Interrupt controller device node for MSI IRQ chip 19 interrupt-cells: should be set to 1 20 interrupts: GIC interrupt lines connected to PCI MSI interrupt lines 21 22 Example: 23 pcie_msi_intc: msi-interrupt-controller { 24 interrupt-controller; 25 #interrupt-cells = <1>; 26 interrupt-parent = <&gic>; 27 interrupts = <GIC_SPI 30 IRQ_TYPE_EDGE_RISING>, 28 <GIC_SPI 31 IRQ_TYPE_EDGE_RISING>, 29 <GIC_SPI 32 IRQ_TYPE_EDGE_RISING>, 30 <GIC_SPI 33 IRQ_TYPE_EDGE_RISING>, 31 <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>, 32 <GIC_SPI 35 IRQ_TYPE_EDGE_RISING>, 33 <GIC_SPI 36 IRQ_TYPE_EDGE_RISING>, 34 <GIC_SPI 37 IRQ_TYPE_EDGE_RISING>; 35 }; 36 37pcie_intc: Interrupt controller device node for Legacy IRQ chip 38 interrupt-cells: should be set to 1 39 40 Example: 41 pcie_intc: legacy-interrupt-controller { 42 interrupt-controller; 43 #interrupt-cells = <1>; 44 interrupt-parent = <&gic>; 45 interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>, 46 <GIC_SPI 27 IRQ_TYPE_EDGE_RISING>, 47 <GIC_SPI 28 IRQ_TYPE_EDGE_RISING>, 48 <GIC_SPI 29 IRQ_TYPE_EDGE_RISING>; 49 }; 50 51Optional properties:- 52 phys: phandle to generic Keystone SerDes PHY for PCI 53 phy-names: name of the generic Keystone SerDes PHY for PCI 54 - If boot loader already does PCI link establishment, then phys and 55 phy-names shouldn't be present. 56 interrupts: platform interrupt for error interrupts. 57 58DesignWare DT Properties not applicable for Keystone PCI 59 601. pcie_bus clock-names not used. Instead, a phandle to phys is used. 61