kernel/Documentation/devicetree/bindings/phy/qcom-pcie2-phy.txt
2024-07-22 17:22:30 +08:00

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Qualcomm PCIe2 PHY controller
=============================
The Qualcomm PCIe2 PHY is a Synopsys based phy found in a number of Qualcomm
platforms.
Required properties:
- compatible: compatible list, should be:
"qcom,qcs404-pcie2-phy", "qcom,pcie2-phy"
- reg: offset and length of the PHY register set.
- #phy-cells: must be 0.
- clocks: a clock-specifier pair for the "pipe" clock
- vdda-vp-supply: phandle to low voltage regulator
- vdda-vph-supply: phandle to high voltage regulator
- resets: reset-specifier pairs for the "phy" and "pipe" resets
- reset-names: list of resets, should contain:
"phy" and "pipe"
- clock-output-names: name of the outgoing clock signal from the PHY PLL
- #clock-cells: must be 0
Example:
phy@7786000 {
compatible = "qcom,qcs404-pcie2-phy", "qcom,pcie2-phy";
reg = <0x07786000 0xb8>;
clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
resets = <&gcc GCC_PCIEPHY_0_PHY_BCR>,
<&gcc GCC_PCIE_0_PIPE_ARES>;
reset-names = "phy", "pipe";
vdda-vp-supply = <&vreg_l3_1p05>;
vdda-vph-supply = <&vreg_l5_1p8>;
clock-output-names = "pcie_0_pipe_clk";
#clock-cells = <0>;
#phy-cells = <0>;
};