Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / phy / phy-stih407-usb.txt

diff --git a/kernel/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt b/kernel/Documentation/devicetree/bindings/phy/phy-stih407-usb.txt
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+ST STiH407 USB PHY controller
+
+This file documents the dt bindings for the usb picoPHY driver which is the PHY for both USB2 and USB3
+host controllers (when controlling usb2/1.1 devices) available on STiH407 SoC family from STMicroelectronics.
+
+Required properties:
+- compatible           : should be "st,stih407-usb2-phy"
+- st,syscfg            : phandle of sysconfig bank plus integer array containing phyparam and phyctrl register offsets
+- resets               : list of phandle and reset specifier pairs. There should be two entries, one
+                         for the whole phy and one for the port
+- reset-names          : list of reset signal names. Should be "global" and "port"
+See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
+See: Documentation/devicetree/bindings/reset/reset.txt
+
+Example:
+
+usb2_picophy0: usbpicophy@f8 {
+       compatible      = "st,stih407-usb2-phy";
+       #phy-cells      = <0>;
+       st,syscfg       = <&syscfg_core 0x100 0xf4>;
+       resets          = <&softreset STIH407_PICOPHY_SOFTRESET>,
+                         <&picophyreset STIH407_PICOPHY0_RESET>;
+       reset-names     = "global", "port";
+};