1 Socionext UniPhier PCIe host controller bindings
3 This describes the devicetree bindings for PCIe host controller implemented
4 on Socionext UniPhier SoCs.
6 UniPhier PCIe host controller is based on the Synopsys DesignWare PCI core.
7 It shares common functions with the PCIe DesignWare core driver and inherits
8 common properties defined in
9 Documentation/devicetree/bindings/pci/designware-pcie.txt.
12 - compatible: Should be "socionext,uniphier-pcie".
13 - reg: Specifies offset and length of the register set for the device.
14 According to the reg-names, appropriate register sets are required.
15 - reg-names: Must include the following entries:
16 "dbi" - controller configuration registers
17 "link" - SoC-specific glue layer registers
18 "config" - PCIe configuration space
19 "atu" - iATU registers for DWC version 4.80 or later
20 - clocks: A phandle to the clock gate for PCIe glue layer including
22 - resets: A phandle to the reset line for PCIe glue layer including
24 - interrupts: A list of interrupt specifiers. According to the
25 interrupt-names, appropriate interrupts are required.
26 - interrupt-names: Must include the following entries:
31 - phys: A phandle to generic PCIe PHY. According to the phy-names, appropriate
33 - phy-names: Must be "pcie-phy".
36 - legacy-interrupt-controller: Specifies interrupt controller for legacy PCI
39 Required properties for legacy-interrupt-controller:
40 - interrupt-controller: identifies the node as an interrupt controller.
41 - #interrupt-cells: specifies the number of cells needed to encode an
42 interrupt source. The value must be 1.
43 - interrupt-parent: Phandle to the parent interrupt controller.
44 - interrupts: An interrupt specifier for legacy interrupt.
49 compatible = "socionext,uniphier-pcie", "snps,dw-pcie";
51 reg-names = "dbi", "link", "config";
52 reg = <0x66000000 0x1000>, <0x66010000 0x10000>,
56 clocks = <&sys_clk 24>;
57 resets = <&sys_rst 24>;
60 bus-range = <0x0 0xff>;
64 <0x81000000 0 0x00000000 0x2ffe0000 0 0x00010000
65 /* non-prefetchable memory */
66 0x82000000 0 0x00000000 0x20000000 0 0x0ffe0000>;
67 #interrupt-cells = <1>;
68 interrupt-names = "dma", "msi";
69 interrupts = <0 224 4>, <0 225 4>;
70 interrupt-map-mask = <0 0 0 7>;
71 interrupt-map = <0 0 0 1 &pcie_intc 0>, /* INTA */
72 <0 0 0 2 &pcie_intc 1>, /* INTB */
73 <0 0 0 3 &pcie_intc 2>, /* INTC */
74 <0 0 0 4 &pcie_intc 3>; /* INTD */
76 pcie_intc: legacy-interrupt-controller {
78 #interrupt-cells = <1>;
79 interrupt-parent = <&gic>;
80 interrupts = <0 226 4>;