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-* Rockchip AXI PCIe Root Port Bridge DT description
-
-Required properties:
-- #address-cells: Address representation for root ports, set to <3>
-- #size-cells: Size representation for root ports, set to <2>
-- #interrupt-cells: specifies the number of cells needed to encode an
- interrupt source. The value must be 1.
-- compatible: Should contain "rockchip,rk3399-pcie"
-- reg: Two register ranges as listed in the reg-names property
-- reg-names: Must include the following names
- - "axi-base"
- - "apb-base"
-- clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names: Must include the following entries:
- - "aclk"
- - "aclk-perf"
- - "hclk"
- - "pm"
-- msi-map: Maps a Requester ID to an MSI controller and associated
- msi-specifier data. See ./pci-msi.txt
-- interrupts: Three interrupt entries must be specified.
-- interrupt-names: Must include the following names
- - "sys"
- - "legacy"
- - "client"
-- resets: Must contain seven entries for each entry in reset-names.
- See ../reset/reset.txt for details.
-- reset-names: Must include the following names
- - "core"
- - "mgmt"
- - "mgmt-sticky"
- - "pipe"
- - "pm"
- - "aclk"
- - "pclk"
-- pinctrl-names : The pin control state names
-- pinctrl-0: The "default" pinctrl state
-- #interrupt-cells: specifies the number of cells needed to encode an
- interrupt source. The value must be 1.
-- interrupt-map-mask and interrupt-map: standard PCI properties
-
-Required properties for legacy PHY model (deprecated):
-- phys: From PHY bindings: Phandle for the Generic PHY for PCIe.
-- phy-names: MUST be "pcie-phy".
-
-Required properties for per-lane PHY model (preferred):
-- phys: Must contain an phandle to a PHY for each entry in phy-names.
-- phy-names: Must include 4 entries for all 4 lanes even if some of
- them won't be used for your cases. Entries are of the form "pcie-phy-N":
- where N ranges from 0 to 3.
- (see example below and you MUST also refer to ../phy/rockchip-pcie-phy.txt
- for changing the #phy-cells of phy node to support it)
-
-Optional Property:
-- aspm-no-l0s: RC won't support ASPM L0s. This property is needed if
- using 24MHz OSC for RC's PHY.
-- ep-gpios: contain the entry for pre-reset GPIO
-- num-lanes: number of lanes to use
-- vpcie12v-supply: The phandle to the 12v regulator to use for PCIe.
-- vpcie3v3-supply: The phandle to the 3.3v regulator to use for PCIe.
-- vpcie1v8-supply: The phandle to the 1.8v regulator to use for PCIe.
-- vpcie0v9-supply: The phandle to the 0.9v regulator to use for PCIe.
-
-*Interrupt controller child node*
-The core controller provides a single interrupt for legacy INTx. The PCIe node
-should contain an interrupt controller node as a target for the PCI
-'interrupt-map' property. This node represents the domain at which the four
-INTx interrupts are decoded and routed.
-
-
-Required properties for Interrupt controller child node:
-- interrupt-controller: identifies the node as an interrupt controller
-- #address-cells: specifies the number of cells needed to encode an
- address. The value must be 0.
-- #interrupt-cells: specifies the number of cells needed to encode an
- interrupt source. The value must be 1.
-
-Example:
-
-pcie0: pcie@f8000000 {
- compatible = "rockchip,rk3399-pcie";
- #address-cells = <3>;
- #size-cells = <2>;
- clocks = <&cru ACLK_PCIE>, <&cru ACLK_PERF_PCIE>,
- <&cru PCLK_PCIE>, <&cru SCLK_PCIE_PM>;
- clock-names = "aclk", "aclk-perf",
- "hclk", "pm";
- bus-range = <0x0 0x1>;
- interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH 0>,
- <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH 0>,
- <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH 0>;
- interrupt-names = "sys", "legacy", "client";
- assigned-clocks = <&cru SCLK_PCIEPHY_REF>;
- assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>;
- assigned-clock-rates = <100000000>;
- ep-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
- ranges = <0x83000000 0x0 0xfa000000 0x0 0xfa000000 0x0 0x600000
- 0x81000000 0x0 0xfa600000 0x0 0xfa600000 0x0 0x100000>;
- num-lanes = <4>;
- msi-map = <0x0 &its 0x0 0x1000>;
- reg = <0x0 0xf8000000 0x0 0x2000000>, <0x0 0xfd000000 0x0 0x1000000>;
- reg-names = "axi-base", "apb-base";
- resets = <&cru SRST_PCIE_CORE>, <&cru SRST_PCIE_MGMT>,
- <&cru SRST_PCIE_MGMT_STICKY>, <&cru SRST_PCIE_PIPE> ,
- <&cru SRST_PCIE_PM>, <&cru SRST_P_PCIE>, <&cru SRST_A_PCIE>;
- reset-names = "core", "mgmt", "mgmt-sticky", "pipe",
- "pm", "pclk", "aclk";
- /* deprecated legacy PHY model */
- phys = <&pcie_phy>;
- phy-names = "pcie-phy";
- pinctrl-names = "default";
- pinctrl-0 = <&pcie_clkreq>;
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 7>;
- interrupt-map = <0 0 0 1 &pcie0_intc 0>,
- <0 0 0 2 &pcie0_intc 1>,
- <0 0 0 3 &pcie0_intc 2>,
- <0 0 0 4 &pcie0_intc 3>;
- pcie0_intc: interrupt-controller {
- interrupt-controller;
- #address-cells = <0>;
- #interrupt-cells = <1>;
- };
-};
-
-pcie0: pcie@f8000000 {
- ...
-
- /* preferred per-lane PHY model */
- phys = <&pcie_phy 0>, <&pcie_phy 1>, <&pcie_phy 2>, <&pcie_phy 3>;
- phy-names = "pcie-phy-0", "pcie-phy-1", "pcie-phy-2", "pcie-phy-3";
-
- ...
-};