1 * Rockchip AXI PCIe Root Port Bridge DT description
4 - #address-cells: Address representation for root ports, set to <3>
5 - #size-cells: Size representation for root ports, set to <2>
6 - #interrupt-cells: specifies the number of cells needed to encode an
7 interrupt source. The value must be 1.
8 - compatible: Should contain "rockchip,rk3399-pcie"
9 - reg: Two register ranges as listed in the reg-names property
10 - reg-names: Must include the following names
13 - clocks: Must contain an entry for each entry in clock-names.
14 See ../clocks/clock-bindings.txt for details.
15 - clock-names: Must include the following entries:
20 - msi-map: Maps a Requester ID to an MSI controller and associated
21 msi-specifier data. See ./pci-msi.txt
22 - phys: From PHY bindings: Phandle for the Generic PHY for PCIe.
23 - phy-names: MUST be "pcie-phy".
24 - interrupts: Three interrupt entries must be specified.
25 - interrupt-names: Must include the following names
29 - resets: Must contain seven entries for each entry in reset-names.
30 See ../reset/reset.txt for details.
31 - reset-names: Must include the following names
39 - pinctrl-names : The pin control state names
40 - pinctrl-0: The "default" pinctrl state
41 - #interrupt-cells: specifies the number of cells needed to encode an
42 interrupt source. The value must be 1.
43 - interrupt-map-mask and interrupt-map: standard PCI properties
46 - ep-gpios: contain the entry for pre-reset gpio
47 - num-lanes: number of lanes to use
48 - vpcie3v3-supply: The phandle to the 3.3v regulator to use for PCIe.
49 - vpcie1v8-supply: The phandle to the 1.8v regulator to use for PCIe.
50 - vpcie0v9-supply: The phandle to the 0.9v regulator to use for PCIe.
52 *Interrupt controller child node*
53 The core controller provides a single interrupt for legacy INTx. The PCIe node
54 should contain an interrupt controller node as a target for the PCI
55 'interrupt-map' property. This node represents the domain at which the four
56 INTx interrupts are decoded and routed.
59 Required properties for Interrupt controller child node:
60 - interrupt-controller: identifies the node as an interrupt controller
61 - #address-cells: specifies the number of cells needed to encode an
62 address. The value must be 0.
63 - #interrupt-cells: specifies the number of cells needed to encode an
64 interrupt source. The value must be 1.
68 pcie0: pcie@f8000000 {
69 compatible = "rockchip,rk3399-pcie";
72 clocks = <&cru ACLK_PCIE>, <&cru ACLK_PERF_PCIE>,
73 <&cru PCLK_PCIE>, <&cru SCLK_PCIE_PM>;
74 clock-names = "aclk", "aclk-perf",
76 bus-range = <0x0 0x1>;
77 interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH 0>,
78 <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH 0>,
79 <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH 0>;
80 interrupt-names = "sys", "legacy", "client";
81 assigned-clocks = <&cru SCLK_PCIEPHY_REF>;
82 assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>;
83 assigned-clock-rates = <100000000>;
84 ep-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
85 ranges = <0x83000000 0x0 0xfa000000 0x0 0xfa000000 0x0 0x600000
86 0x81000000 0x0 0xfa600000 0x0 0xfa600000 0x0 0x100000>;
88 msi-map = <0x0 &its 0x0 0x1000>;
89 reg = <0x0 0xf8000000 0x0 0x2000000>, <0x0 0xfd000000 0x0 0x1000000>;
90 reg-names = "axi-base", "apb-base";
91 resets = <&cru SRST_PCIE_CORE>, <&cru SRST_PCIE_MGMT>,
92 <&cru SRST_PCIE_MGMT_STICKY>, <&cru SRST_PCIE_PIPE> ,
93 <&cru SRST_PCIE_PM>, <&cru SRST_P_PCIE>, <&cru SRST_A_PCIE>;
94 reset-names = "core", "mgmt", "mgmt-sticky", "pipe",
97 phy-names = "pcie-phy";
98 pinctrl-names = "default";
99 pinctrl-0 = <&pcie_clkreq>;
100 #interrupt-cells = <1>;
101 interrupt-map-mask = <0 0 0 7>;
102 interrupt-map = <0 0 0 1 &pcie0_intc 0>,
103 <0 0 0 2 &pcie0_intc 1>,
104 <0 0 0 3 &pcie0_intc 2>,
105 <0 0 0 4 &pcie0_intc 3>;
106 pcie0_intc: interrupt-controller {
107 interrupt-controller;
108 #address-cells = <0>;
109 #interrupt-cells = <1>;