phy: rockchip-inno-usb2: add support for rk3368 SoC

[firefly-linux-kernel-4.4.55.git] / Documentation / devicetree / bindings / phy / phy-rockchip-inno-usb2.txt

diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
index 1155aaa853f6e008024d12cf066138aaf6b840dc..6e3147d866de466247d04e5cc61172d0c00a9f77 100644 (file)
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
@@ -2,7 +2,9 @@ ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK
 
 Required properties (phy (parent) node):
  - compatible : should be one of the listed compatibles:
+       * "rockchip,rk3328-usb2phy"
        * "rockchip,rk3366-usb2phy"
+       * "rockchip,rk3368-usb2phy"
        * "rockchip,rk3399-usb2phy"
  - reg : the address offset of grf for usb-phy configuration.
  - #clock-cells : should be 0.
@@ -11,6 +13,13 @@ Required properties (phy (parent) node):
 Optional properties:
  - clocks : phandle + phy specifier pair, for the input clock of phy.
  - clock-names : input clock name of phy, must be "phyclk".
+ - assigned-clocks : phandle of usb 480m clock.
+ - assigned-clock-parents : parent of usb 480m clock, select between
+                usb-phy output 480m and xin24m.
+                Refer to clk/clock-bindings.txt for generic clock
+                consumer properties.
+ - rockchip,u2phy-tuning; when set, tuning u2phy to improve usb2 SI.
+ - otg-vbus-gpios : assign the gpio to control vbus of otg port.
 
 Required nodes : a sub-node is required for each port the phy provides.
                 The sub-node name is used to identify host or otg port,
@@ -32,6 +41,8 @@ Optional properties:
  - rockchip,utmi-avalid : when set, the usb2 phy will use avalid
                status bit to get vbus status. If not, it will use
                bvalid status bit to get vbus status by default.
+ - rockchip,vbus-always-on: when set, indicates that the otg vbus
+               is always powered on.
 
 Example:
 
@@ -65,3 +76,44 @@ grf: syscon@ff770000 {
                };
        };
 };
+
+Required properties (usb2phy grf node):
+ - compatible : should be one of the listed compatibles:
+               "rockchip,rk3328-usb2phy-grf", "syscon", "simple-mfd";
+ - reg : the address offset of grf for usb-phy configuration.
+ - #address-cells : should be 1.
+ - #size-cells : should be 1.
+
+Required nodes : a sub-node is required for the phy provides.
+                The sub-node name is used to identify each phy,
+                and shall be the following entries:
+
+Example:
+
+usb2phy_grf: syscon@ff450000 {
+       compatible = "rockchip,rk3328-usb2phy-grf", "syscon",
+                    "simple-mfd";
+       reg = <0x0 0xff450000 0x0 0x10000>;
+       #address-cells = <1>;
+       #size-cells = <1>;
+
+       u2phy: usb2-phy@100 {
+               compatible = "rockchip,rk3328-usb2phy";
+               reg = <0x100 0x10>;
+               clocks = <&xin24m>;
+               clock-names = "phyclk";
+               #clock-cells = <0>;
+               assigned-clocks = <&cru USB480M>;
+               assigned-clock-parents = <&u2phy>;
+               clock-output-names = "usb480m_phy";
+               status = "disabled";
+
+               u2phy_host: host-port {
+                       #phy-cells = <0>;
+                       interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "linestate";
+                       status = "disabled";
+               };
+       };
+};
+