From: Pengcheng Li <lpc.li@xxxxxxxxxxxxx>
It adds device tree bindings document for HiSilicon INNO USB2 PHY.
Signed-off-by: Pengcheng Li <lpc.li@xxxxxxxxxxxxx>
Signed-off-by: Jiancheng Xue <xuejiancheng@xxxxxxxxxxxxx>
Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
---
.../devicetree/bindings/phy/phy-hisi-inno-usb2.txt | 52 ++++++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/phy-hisi-inno-usb2.txt
diff --git a/Documentation/devicetree/bindings/phy/phy-hisi-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-hisi-inno-usb2.txt
new file mode 100644
index 000000000000..b563cf54ca7b
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-hisi-inno-usb2.txt
@@ -0,0 +1,52 @@
+HiSilicon INNO USB2 PHY
+
+Required properties:
+- compatible: Should be one of the following strings:
+ "hisilicon,inno-usb2-phy",
+ "hisilicon,hi3798cv200-usb2-phy".
+- reg: Should be the address space for PHY configuration register in peripheral
+ controller, e.g. PERI_USB0 for USB 2.0 PHY01 on Hi3798cv200 SoC.
+- #phy-cells: Should be 1. The specifier is the index of the PHY port to
+ reference.
+- clocks: The phandle and clock specifier pair for reference clock utmi_refclk.
+- resets: The list of phandle and reset specifier pairs for each reset signal
+ in reset-names.
+- reset-names: Should contain "power_on", "utmi0" and "utmi1". The "utmi1"
+ should exist only if the device has two PHY port.
+
+Refer to phy/phy-bindings.txt for the generic PHY binding properties
+
+Note: the device node should be a child of peripheral controller that contains
+the PHY configuration register.
+
+Example:
+
+perictrl: peripheral-controller@8a20000 {
+ compatible = "hisilicon,hi3798cv200-perictrl", "syscon",
+ "simple-mfd";
+ reg = <0x8a20000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x8a20000 0x1000>;
+
+ usb2_phy1: phy@120 {
+ compatible = "hisilicon,hi3798cv200-usb2-phy";
+ reg = <0x120 0x4>;
+ #phy-cells = <1>;
+ clocks = <&crg HISTB_USB2_PHY1_REF_CLK>;
+ resets = <&crg 0xbc 4>,
+ <&crg 0xbc 8>,
+ <&crg 0xbc 9>;
+ reset-names = "power_on", "utmi0", "utmi1";
+ };
+
+ usb2_phy2: phy@124 {
+ compatible = "hisilicon,hi3798cv200-usb2-phy";
+ reg = <0x124 0x4>;
+ #phy-cells = <1>;
+ clocks = <&crg HISTB_USB2_PHY2_REF_CLK>;
+ resets = <&crg 0xbc 6>,
+ <&crg 0xbc 10>;
+ reset-names = "power_on", "utmi0";
+ };
+};
--
1.9.1
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