summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/phy/ti-phy.txt
diff options
context:
space:
mode:
Diffstat (limited to 'dts/Bindings/phy/ti-phy.txt')
-rw-r--r--dts/Bindings/phy/ti-phy.txt86
1 files changed, 86 insertions, 0 deletions
diff --git a/dts/Bindings/phy/ti-phy.txt b/dts/Bindings/phy/ti-phy.txt
new file mode 100644
index 0000000000..788fb0fa37
--- /dev/null
+++ b/dts/Bindings/phy/ti-phy.txt
@@ -0,0 +1,86 @@
+TI PHY: DT DOCUMENTATION FOR PHYs in TI PLATFORMs
+
+OMAP CONTROL PHY
+
+Required properties:
+ - compatible: Should be one of
+ "ti,control-phy-otghs" - if it has otghs_control mailbox register as on OMAP4.
+ "ti,control-phy-usb2" - if it has Power down bit in control_dev_conf register
+ e.g. USB2_PHY on OMAP5.
+ "ti,control-phy-pipe3" - if it has DPLL and individual Rx & Tx power control
+ e.g. USB3 PHY and SATA PHY on OMAP5.
+ "ti,control-phy-usb2-dra7" - if it has power down register like USB2 PHY on
+ DRA7 platform.
+ "ti,control-phy-usb2-am437" - if it has power down register like USB2 PHY on
+ AM437 platform.
+ - reg : Address and length of the register set for the device. It contains
+ the address of "otghs_control" for control-phy-otghs or "power" register
+ for other types.
+ - reg-names: should be "otghs_control" control-phy-otghs and "power" for
+ other types.
+
+omap_control_usb: omap-control-usb@4a002300 {
+ compatible = "ti,control-phy-otghs";
+ reg = <0x4a00233c 0x4>;
+ reg-names = "otghs_control";
+};
+
+OMAP USB2 PHY
+
+Required properties:
+ - compatible: Should be "ti,omap-usb2"
+ - reg : Address and length of the register set for the device.
+ - #phy-cells: determine the number of cells that should be given in the
+ phandle while referencing this phy.
+
+Optional properties:
+ - ctrl-module : phandle of the control module used by PHY driver to power on
+ the PHY.
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb2phy@4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>;
+ ctrl-module = <&omap_control_usb>;
+ #phy-cells = <0>;
+};
+
+TI PIPE3 PHY
+
+Required properties:
+ - compatible: Should be "ti,phy-usb3" or "ti,phy-pipe3-sata".
+ "ti,omap-usb3" is deprecated.
+ - reg : Address and length of the register set for the device.
+ - reg-names: The names of the register addresses corresponding to the registers
+ filled in "reg".
+ - #phy-cells: determine the number of cells that should be given in the
+ phandle while referencing this phy.
+ - clocks: a list of phandles and clock-specifier pairs, one for each entry in
+ clock-names.
+ - clock-names: should include:
+ * "wkupclk" - wakeup clock.
+ * "sysclk" - system clock.
+ * "refclk" - reference clock.
+
+Optional properties:
+ - ctrl-module : phandle of the control module used by PHY driver to power on
+ the PHY.
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb3phy@4a084400 {
+ compatible = "ti,phy-usb3";
+ reg = <0x4a084400 0x80>,
+ <0x4a084800 0x64>,
+ <0x4a084c00 0x40>;
+ reg-names = "phy_rx", "phy_tx", "pll_ctrl";
+ ctrl-module = <&omap_control_usb>;
+ #phy-cells = <0>;
+ clocks = <&usb_phy_cm_clk32k>,
+ <&sys_clkin>,
+ <&usb_otg_ss_refclk960m>;
+ clock-names = "wkupclk",
+ "sysclk",
+ "refclk";
+};