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Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/pci/pci-keystone.txt | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/pci-keystone.txt b/Documentation/devicetree/bindings/pci/pci-keystone.txt new file mode 100644 index 000000000..4dd17de54 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/pci-keystone.txt @@ -0,0 +1,60 @@ +TI Keystone PCIe interface + +Keystone PCI host Controller is based on the Synopsys DesignWare PCI +hardware version 3.65. It shares common functions with the PCIe DesignWare +core driver and inherits common properties defined in +Documentation/devicetree/bindings/pci/designware-pcie.txt + +Please refer to Documentation/devicetree/bindings/pci/designware-pcie.txt +for the details of DesignWare DT bindings. Additional properties are +described here as well as properties that are not applicable. + +Required Properties:- + +compatibility: "ti,keystone-pcie" +reg: index 1 is the base address and length of DW application registers. + index 2 is the base address and length of PCI device ID register. + +pcie_msi_intc : Interrupt controller device node for MSI IRQ chip + interrupt-cells: should be set to 1 + interrupts: GIC interrupt lines connected to PCI MSI interrupt lines + + Example: + pcie_msi_intc: msi-interrupt-controller { + interrupt-controller; + #interrupt-cells = <1>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 30 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 31 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 32 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 33 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 35 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 36 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 37 IRQ_TYPE_EDGE_RISING>; + }; + +pcie_intc: Interrupt controller device node for Legacy IRQ chip + interrupt-cells: should be set to 1 + + Example: + pcie_intc: legacy-interrupt-controller { + interrupt-controller; + #interrupt-cells = <1>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 27 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 28 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 29 IRQ_TYPE_EDGE_RISING>; + }; + +Optional properties:- + phys: phandle to generic Keystone SerDes PHY for PCI + phy-names: name of the generic Keystone SerDes PHY for PCI + - If boot loader already does PCI link establishment, then phys and + phy-names shouldn't be present. + interrupts: platform interrupt for error interrupts. + +DesignWare DT Properties not applicable for Keystone PCI + +1. pcie_bus clock-names not used. Instead, a phandle to phys is used. |