Add DT bindings document for Broadcom STB USB PHYs
Acked-by: Rob Herring <r...@kernel.org>
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
.../bindings/phy/brcm,brcmstb-usb-phy.txt | 42 ++++++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644
Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
diff --git a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
new file mode 100644
index 0000000..bde0f5f
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
@@ -0,0 +1,42 @@
+Broadcom STB USB PHY
+
+Required properties:
+ - compatible: brcm,brcmstb-usb-phy
+ - reg: two offset and length pairs.
+ The first pair specifies a manditory set of memory mapped
+ registers used for general control of the PHY.
+ The second pair specifies optional registers used by some of
+ the SoCs that support USB 3.x
+ - #phy-cells: Shall be 1 as it expects one argument for setting
+ the type of the PHY. Possible values are:
+ - PHY_TYPE_USB2 for USB1.1/2.0 PHY
+ - PHY_TYPE_USB3 for USB3.x PHY
+
+Optional Properties:
+- clocks : clock phandles.
+- clock-names: String, clock name.
+- brcm,ipp: Boolean, Invert Port Power.
+ Possible values are: 0 (Don't invert), 1 (Invert)
+- brcm,ioc: Boolean, Invert Over Current detection.
+ Possible values are: 0 (Don't invert), 1 (Invert)
+- brcm,has-xhci: Boolean indicating an optional 3.x only XHCI controller.
+- brcm,has-xhci-only: Boolean indicating an XHCI controller that supports
+ 1.1, 2.0 and 3.0 devices
+- dr_mode: String, PHY Device mode.
+ Possible values are: "host", "peripheral ", "drd" or "typec-pd"
+ If this property is not defined, the phy will default to "host" mode.
+
+Example:
+
+usbphy_0: usb-phy@f0470200 {
+ reg = <0xf0470200 0xb8>,
+ <0xf0471940 0x6c0>;
+ compatible = "brcm,brcmstb-usb-phy";
+ #phy-cells = <1>;
+ dr_mode = "host"
+ brcm,ioc = <1>;
+ brcm,ipp = <1>;
+ brcm,has-xhci;
+ clocks = <&usb20>, <&usb30>;
+ clock-names = "sw_usb", "sw_usb3";
+};
--
1.9.0.138.g2de3478
