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- STMicroelectronics STM32 USB HS PHY controller
- The STM32 USBPHYC block contains a dual port High Speed UTMI+ PHY and a UTMI
- switch. It controls PHY configuration and status, and the UTMI+ switch that
- selects either OTG or HOST controller for the second PHY port. It also sets
- PLL configuration.
- USBPHYC
- |_ PLL
- |
- |_ PHY port#1 _________________ HOST controller
- | _ |
- | / 1|________________|
- |_ PHY port#2 ----| |________________
- | \_0| |
- |_ UTMI switch_______| OTG controller
- Phy provider node
- =================
- Required properties:
- - compatible: must be "st,stm32mp1-usbphyc"
- - reg: address and length of the usb phy control register set
- - clocks: phandle + clock specifier for the PLL phy clock
- - vdda1v1-supply: phandle to the regulator providing 1V1 power to the PHY
- - vdda1v8-supply: phandle to the regulator providing 1V8 power to the PHY
- - #address-cells: number of address cells for phys sub-nodes, must be <1>
- - #size-cells: number of size cells for phys sub-nodes, must be <0>
- Optional properties:
- - assigned-clocks: phandle + clock specifier for the PLL phy clock
- - assigned-clock-parents: the PLL phy clock parent
- - resets: phandle + reset specifier
- Required nodes: one sub-node per port the controller provides.
- Phy sub-nodes
- ==============
- Required properties:
- - reg: phy port index
- - phy-supply: phandle to the regulator providing 3V3 power to the PHY,
- see phy-bindings.txt in the same directory.
- - #phy-cells: see phy-bindings.txt in the same directory, must be <0> for PHY
- port#1 and must be <1> for PHY port#2, to select USB controller
- Example:
- usbphyc: usb-phy@5a006000 {
- compatible = "st,stm32mp1-usbphyc";
- reg = <0x5a006000 0x1000>;
- clocks = <&rcc_clk USBPHY_K>;
- resets = <&rcc_rst USBPHY_R>;
- #address-cells = <1>;
- #size-cells = <0>;
- usbphyc_port0: usb-phy@0 {
- reg = <0>;
- phy-supply = <&vdd_usb>;
- vdda1v1-supply = <®11>;
- vdda1v8-supply = <®18>
- #phy-cells = <0>;
- };
- usbphyc_port1: usb-phy@1 {
- reg = <1>;
- phy-supply = <&vdd_usb>;
- vdda1v1-supply = <®11>;
- vdda1v8-supply = <®18>
- #phy-cells = <1>;
- };
- };
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