Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / phy / sun4i-usb-phy.txt

diff --git a/kernel/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt b/kernel/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
new file mode 100644 (file)
index 0000000..16528b9
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
@@ -0,0 +1,37 @@
+Allwinner sun4i USB PHY
+-----------------------
+
+Required properties:
+- compatible : should be one of
+  * allwinner,sun4i-a10-usb-phy
+  * allwinner,sun5i-a13-usb-phy
+  * allwinner,sun6i-a31-usb-phy
+  * allwinner,sun7i-a20-usb-phy
+- reg : a list of offset + length pairs
+- reg-names :
+  * "phy_ctrl"
+  * "pmu1"
+  * "pmu2" for sun4i, sun6i or sun7i
+- #phy-cells : from the generic phy bindings, must be 1
+- clocks : phandle + clock specifier for the phy clocks
+- clock-names :
+  * "usb_phy" for sun4i, sun5i or sun7i
+  * "usb0_phy", "usb1_phy" and "usb2_phy" for sun6i
+- resets : a list of phandle + reset specifier pairs
+- reset-names :
+  * "usb0_reset"
+  * "usb1_reset"
+  * "usb2_reset" for sun4i, sun6i or sun7i
+
+Example:
+       usbphy: phy@0x01c13400 {
+               #phy-cells = <1>;
+               compatible = "allwinner,sun4i-a10-usb-phy";
+               /* phy base regs, phy1 pmu reg, phy2 pmu reg */
+               reg = <0x01c13400 0x10 0x01c14800 0x4 0x01c1c800 0x4>;
+               reg-names = "phy_ctrl", "pmu1", "pmu2";
+               clocks = <&usb_clk 8>;
+               clock-names = "usb_phy";
+               resets = <&usb_clk 1>, <&usb_clk 2>;
+               reset-names = "usb1_reset", "usb2_reset";
+       };