diff options
Diffstat (limited to 'Documentation/devicetree/bindings/phy/ti-phy.txt')
-rw-r--r-- | Documentation/devicetree/bindings/phy/ti-phy.txt | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/ti-phy.txt b/Documentation/devicetree/bindings/phy/ti-phy.txt new file mode 100644 index 0000000..788fb0f --- /dev/null +++ b/Documentation/devicetree/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"; +}; |