From 74c60cd96b5c8b63be69881fa7da514eae240744 Mon Sep 17 00:00:00 2001 From: Kunihiko Hayashi Date: Wed, 5 Sep 2018 18:49:44 +0900 Subject: [PATCH] dt-bindings: phy: add UniPhier PCIe PHY description Add DT bindings for PHY interface built into PCIe controller implemented in UniPhier SoCs. Signed-off-by: Kunihiko Hayashi Reviewed-by: Rob Herring Signed-off-by: Kishon Vijay Abraham I --- .../bindings/phy/uniphier-pcie-phy.txt | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/uniphier-pcie-phy.txt diff --git a/Documentation/devicetree/bindings/phy/uniphier-pcie-phy.txt b/Documentation/devicetree/bindings/phy/uniphier-pcie-phy.txt new file mode 100644 index 000000000000..1889d3b89d68 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/uniphier-pcie-phy.txt @@ -0,0 +1,31 @@ +Socionext UniPhier PCIe PHY bindings + +This describes the devicetree bindings for PHY interface built into +PCIe controller implemented on Socionext UniPhier SoCs. + +Required properties: +- compatible: Should contain one of the following: + "socionext,uniphier-ld20-pcie-phy" - for LD20 PHY + "socionext,uniphier-pxs3-pcie-phy" - for PXs3 PHY +- reg: Specifies offset and length of the register set for the device. +- #phy-cells: Must be zero. +- clocks: A phandle to the clock gate for PCIe glue layer including + this phy. +- resets: A phandle to the reset line for PCIe glue layer including + this phy. + +Optional properties: +- socionext,syscon: A phandle to system control to set configurations + for phy. + +Refer to phy/phy-bindings.txt for the generic PHY binding properties. + +Example: + pcie_phy: phy@66038000 { + compatible = "socionext,uniphier-ld20-pcie-phy"; + reg = <0x66038000 0x4000>; + #phy-cells = <0>; + clocks = <&sys_clk 24>; + resets = <&sys_rst 24>; + socionext,syscon = <&soc_glue>; + }; -- 2.20.1